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Journal articles on the topic 'Metal selenide'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

Sarret, Géraldine, Laure Avoscan, Marie Carrière, Richard Collins, Nicolas Geoffroy, Francine Carrot, Jacques Covès, and Barbara Gouget. "Chemical Forms of Selenium in the Metal-Resistant Bacterium Ralstonia metallidurans CH34 Exposed to Selenite and Selenate." Applied and Environmental Microbiology 71, no. 5 (May 2005): 2331–37. http://dx.doi.org/10.1128/aem.71.5.2331-2337.2005.

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ABSTRACT Ralstonia metallidurans CH34, a soil bacterium resistant to a variety of metals, is known to reduce selenite to intracellular granules of elemental selenium (Se0). We have studied the kinetics of selenite (SeIV) and selenate (SeVI) accumulation and used X-ray absorption spectroscopy to identify the accumulated form of selenate, as well as possible chemical intermediates during the transformation of these two oxyanions. When introduced during the lag phase, the presence of selenite increased the duration of this phase, as previously observed. Selenite introduction was followed by a period of slow uptake, during which the bacteria contained Se0 and alkyl selenide in equivalent proportions. This suggests that two reactions with similar kinetics take place: an assimilatory pathway leading to alkyl selenide and a slow detoxification pathway leading to Se0. Subsequently, selenite uptake strongly increased (up to 340 mg Se per g of proteins) and Se0 was the predominant transformation product, suggesting an activation of selenite transport and reduction systems after several hours of contact. Exposure to selenate did not induce an increase in the lag phase duration, and the bacteria accumulated approximately 25-fold less Se than when exposed to selenite. SeIV was detected as a transient species in the first 12 h after selenate introduction, Se0 also occurred as a minor species, and the major accumulated form was alkyl selenide. Thus, in the present experimental conditions, selenate mostly follows an assimilatory pathway and the reduction pathway is not activated upon selenate exposure. These results show that R. metallidurans CH34 may be suitable for the remediation of selenite-, but not selenate-, contaminated environments.

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2

Gu, Xingxing, Tianyu Tang, Xiaoteng Liu, and Yanglong Hou. "Rechargeable metal batteries based on selenium cathodes: progress, challenges and perspectives." Journal of Materials Chemistry A 7, no. 19 (2019): 11566–83. http://dx.doi.org/10.1039/c8ta12537f.

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Rechargeable metal batteries using selenium or selenide as the cathodes have attracted considerable attention during the past few years owing to selenium/selenide possessing a high volumetric energy density that is comparable to that of sulfur, a moderate output voltage and characteristics of environmental benignity.

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3

Hou, Bo, David Benito-Alifonso, Richard F. Webster, David Cherns, M. Carmen Galan, and David J. Fermín. "Synthetic Mechanism Studies of Iron Selenides: An Emerging Class of Materials for Electrocatalysis." Catalysts 11, no. 6 (May 27, 2021): 681. http://dx.doi.org/10.3390/catal11060681.

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Solution-processed iron selenide nanocrystals (NCs) have recently attracted considerable attention in electrocatalysis water splitting. Nevertheless, a primary challenge in current iron-based NCs chemical synthesis is controlling phase purities between each chalcogen (monochalcogenide, dichalcogenides, and oxides), which requires a comprehensive understanding of the reaction mechanisms at the early stages of nucleation. Herein, we investigate the fundamental steps in transforming molecular organoiron and organoselenium precursors to iron selenides NCs with the view of developing universal synthesis protocols for phase pure metal selenium and metal oxides NCs. The main intermediate species and volatile by-products are identified by high-resolution electron microscopy and Nuclear Magnetic Resonance (NMR) spectroscopy (1H, 13C, and 31P). Experimental evidence suggests that the phase determining factor is the coordinating reactivity difference between olefins (1-octadecene, oleylamine), tributylphosphine and trioctylphosphine associated with their corresponding Se bond cleavage. This work proposes organoselenium interconversion reaction mechanisms during iron selenides synthesis, offering a universal synthetic strategy for other electrocatalytically or photocatalytically active layered metal selenides materials.

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4

Zhang, Ya Hui, Xi Cheng, and Qing Wang. "The Synthesis and Properties of Metal Selenide Nanostructures." Applied Mechanics and Materials 723 (January 2015): 540–43. http://dx.doi.org/10.4028/www.scientific.net/amm.723.540.

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Metal selenide has been the subject of considerable interest because of its potential applications in many fields. In this paper, the synthesis of metal selenide nanostructures is described. The Morphologies of as prepared metal selenide nanostructures are summarized. And the applications and prospects of metal selenide in this field also are analyzed.

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5

Zhang, Ya Hui, Xi Cheng, and Qing Wang. "The New Progress on Synthesis of Cadmium Selenide and Lead Selenide Nanostructures." Applied Mechanics and Materials 723 (January 2015): 536–39. http://dx.doi.org/10.4028/www.scientific.net/amm.723.536.

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Cadmium Selenide and Lead Selenide have been the subject of considerable interest because of its potential applications in many fields. In this paper, the synthesis of Cadmium Selenide and Lead Selenide nanostructures is described. The Morphologies of as prepared metal selenide nanostructures are summarized. And the applications and prospects of metal selenide in this field also are analyzed.

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6

Heymann, Gunter, and Elisabeth Selb. "Li2Pt3Se4: a new lithium platinum selenide with jaguéite-type crystal structure by multianvil high-pressure/high-temperature synthesis." Zeitschrift für Naturforschung B 71, no. 11 (November 1, 2016): 1095–104. http://dx.doi.org/10.1515/znb-2016-0165.

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AbstractThe monoclinic lithium platinum selenide Li2Pt3Se4 was obtained via a multianvil high-pressure/high-temperature route at 8 GPa and 1200°C starting from a stoichiometric mixture of lithium nitride, selenium, and platinum. The structure of the ternary alkali metal-transition metal-selenide was refined from single-crystal X-ray diffractometer data: P21/c (no. 14), a=525.9(2), b=1040.6(2), c=636.5(2) pm, β=111.91(1)°, R1=0.0269, wR2=0.0569 (all data) for Li2Pt3Se4. Furthermore, the isostructural mineral phases jaguéite (Cu2Pd3Se4) and chrisstanleyite (Ag2Pd3Se4) were reinvestigated in their ideal stoichiometric ratio. The syntheses of the mineral phases were also carried out under multianvil conditions. Single-crystal data revealed a hitherto not described structural disorder of the transition metal atoms.

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7

Esjan, Magauiya, B. Bekturgan, Duisek Kamysbayev, Bazarbay Serikbaev, and Azimbek Kokanbaev. "Preparation of two-dimensional atomic crystal nanofilm of bismuth selenide of a large area." Chemical Bulletin of Kazakh National University, no. 2 (June 5, 2020): 38–45. http://dx.doi.org/10.15328/cb1049.

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A synthesis of bismuth selenide with a thickness of 3-4 nm on the surface of mica taken as a matrix was investigated using the gas-solid mechanism. Since discovery of two-dimensional atomic crystals of graphene in 2004, scientists have grown interested in exploring methods for synthesis of two-dimensional atomic crystal nanofilms. Among them, of particular interest are sulfides and transition metal selenides, such as molybdenum sulfide, tungsten selenide, bismuth selenide. Bismuth selenide possesses special thermoelectric, photoelectric properties, therefore there are wide possibilities for its use in such areas as thermoelectric devices, photosensitive elements, optical information keepers, etc. In this connection, there are many studies on the search for optimal methods for the synthesis of bismuth selenide. Each of the proposed methods has its own advantages and disadvantages. In the article, a variety of the recently used gas-liquid-solid mechanism (V-L-S) is used as a method for the synthesis of bismuth selenide. When using amorphous silicon dioxide as a matrix, the synthesized bismuth selenide is not uniform, and the synthesis process is uncontrollable. Therefore, in the work fluorinated gold mica was used as a matrix. The effect of temperature, gas feed rate on the size, shape and thickness of the film was investigated.

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8

Turlygaziyeva, Aidana, Gulmira Rakhymbay, Yeldana Bakhytzhan, Akmaral Argimbayeva, and Bibisara Burkitbayeva. "Electrochemical polymerization of poly(aniline-o-anisidine) and its anticorrosion properties." Chemical Bulletin of Kazakh National University, no. 2 (June 5, 2020): 30–36. http://dx.doi.org/10.15328/cb1110.

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A synthesis of bismuth selenide with a thickness of 3-4 nm on the surface of mica taken as a matrix was investigated using the gas-solid mechanism. Since discovery of two-dimensional atomic crystals of graphene in 2004, scientists have grown interested in exploring methods for synthesis of two-dimensional atomic crystal nanofilms. Among them, of particular interest are sulfides and transition metal selenides, such as molybdenum sulfide, tungsten selenide, bismuth selenide. Bismuth selenide possesses special thermoelectric, photoelectric properties, therefore there are wide possibilities for its use in such areas as thermoelectric devices, photosensitive elements, optical information keepers, etc. In this connection, there are many studies on the search for optimal methods for the synthesis of bismuth selenide. Each of the proposed methods has its own advantages and disadvantages. In the article, a variety of the recently used gas-liquid-solid mechanism (V-L-S) is used as a method for the synthesis of bismuth selenide. When using amorphous silicon dioxide as a matrix, the synthesized bismuth selenide is not uniform, and the synthesis process is uncontrollable. Therefore, in the work fluorinated gold mica was used as a matrix. The effect of temperature, gas feed rate on the size, shape and thickness of the film was investigated.

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9

Liu, Fangyang, Can Han, Liangxing Jiang, Jie Li, and Yexiang Liu. "Dynamic analysis on metal selenide electrodeposition." Journal of Solid State Electrochemistry 18, no. 7 (February 27, 2014): 1833–45. http://dx.doi.org/10.1007/s10008-014-2396-0.

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10

Nielsen, Søren Achim, and Jørgen Clausen. "The Use of Marine Algae for Evaluation of Heavy Metal Pollution." Alternatives to Laboratory Animals 17, no. 3 (March 1990): 250–54. http://dx.doi.org/10.1177/026119299001700325.

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The phytoplankton species Chlorella stigmatophora was used to monitor the effect of lead (as lead chloride). In order to standardise the toxicity assay, initial low concentrations of algae were used during optimal supply with nutrients, to avoid the problem of light shading. The growth rates of control algae were compared during 3–4 doubling periods with those exposed to 98-980nM lead. Since heavy metals may influence enzymic activities, e.g. of selenium-containing glutathione peroxidase by precipitating selenium as selenium selenide, the growth rate was compared with the specific glutathione peroxidase activity. Our data demonstrate that it is possible to monitor for lead toxicity (and other heavy metal toxicity) both by decrease in growth rate and by inhibition of enzymic activity. Since cultivation of unicellular algae is relatively simple, it should be possible to use such systems for ecotoxicological screening.

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11

Fellowes, J. W., R. A. D. Pattrick, J. R. Lloyd, J. M. Charnock, V. S. Coker, J. F. W. Mosselmans, T.-C. Weng, and C. I. Pearce. "Ex situ formation of metal selenide quantum dots using bacterially derived selenide precursors." Nanotechnology 24, no. 14 (March 18, 2013): 145603. http://dx.doi.org/10.1088/0957-4484/24/14/145603.

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12

Xiao, B. B., Q. Y. Huang, J. Wu, E. H. Song, and Q. Jiang. "Tetragonal transition metal selenide for hydrogen evolution." Applied Surface Science 591 (July 2022): 153249. http://dx.doi.org/10.1016/j.apsusc.2022.153249.

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13

Rusetskaya, N. Y., and V. B. Borodulin. "Biological activity of selenorganic compounds at heavy metal salts intoxication." Biomeditsinskaya Khimiya 61, no. 4 (2015): 449–61. http://dx.doi.org/10.18097/pbmc20156104449.

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Possible mechanisms of the antitoxic action of organoselenium compounds in heavy metal poisoning have been considered. Heavy metal toxicity associated with intensification of free radical oxidation, suppression of the antioxidant system, damage to macromolecules, mitochondria and the genetic material can cause apoptotic cell death or the development of carcinogenesis. Organic selenium compounds are effective antioxidants during heavy metal poisoning; they exhibit higher bioavailability in mammals than inorganic ones and they are able to activate antioxidant defense, bind heavy metal ions and reactive oxygen species formed during metal-induced oxidative stress. One of promising organoselenium compounds is diacetophenonyl selenide (DAPS-25), which is characterized by antioxidant and antitoxic activity, under conditions including heavy metal intoxication

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14

Pozdin, Andrey V., Daria D. Smirnova, Larisa N. Maskaeva, Gennady L. Rusinov, and Vyacheslav F. Markov. "Chemical bath synthesis of metal chalcogenide films. Part 41. Hydrochemical deposition of thin films of cadmium selenide by sodium selenosulfate." Butlerov Communications 59, no. 9 (September 30, 2019): 29–39. http://dx.doi.org/10.37952/roi-jbc-01/19-59-9-29.

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The group II-VI semiconductor materials including Cadmium Selenide (CdSe) thin films are widely used in many fields of science and technology, in particular in optoelectronics, nanoelectronics and solar energy. Chemical bath deposition (CBD) represents the simplest and the most available technique for deposition of semiconducting layers. CBD is characterized by deletion of toxic gaseous precursors, operation at low temperature and using of inexpensive equipment. The ionic equilibriums in reaction mixture «CdCl2 – L − Na2SeSO3» (L− NH4OH or Na3C6H5¬O7 or mixture of NH4OH and Na3C6H5¬O7 ) were calculated in present work. The prevailing cadmium complex compounds were determined in appropriate for CBD of cadmium selenide films pH range. The main complex compounds inhibiting fast formation of cadmium selenide are Cd(OH)Cit^(2-) complex (in citrat- and ammonia-citrat mixtures) and 〖Cd(NH_3)〗_5^(2+) complex (in ammonia mixture). Also the boundary conditions of forming CdSe and Cd(OH)2 in reaction mixture were determined by thermodynamic calculation based on crystallization factor to estimate the formation conditions of main (CdSe) and impurity (Cd(OH)2) phases. The results of the calculations show that the solid phase of cadmium selenide is possible to form in pH range from 10 to 14. CdSe films were grown by chemical bath deposition on glass substrates at a temperature of 353 K. The thickness of films ranges from 100 to 220 nm. The grain size of films is about 30 nm which was determined by electron microscopic investigations. The elemental composition of cadmium selenide was defined by energy dispersive analysis; the ratio of cadmium and selenium is 1.03 : 1.16. The conductivity of n-type was determined by the sign of thermoelectromotive force.

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15

Shamraienko, Volodymyr, Daniel Spittel, René Hübner, Mahdi Samadi Khoshkhoo, Nelli Weiß, Maximilian Georgi, Konstantin B. L. Borchert, Dana Schwarz, Vladimir Lesnyak, and Alexander Eychmüller. "Cation exchange on colloidal copper selenide nanosheets: a route to two-dimensional metal selenide nanomaterials." Journal of Materials Chemistry C 9, no. 46 (2021): 16523–35. http://dx.doi.org/10.1039/d1tc04815e.

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Up to 5 μm large ca. 5 nm thick PbSe, HgSe, SnCuSe, ZnCuSe, and Cu–Zn–Sn–Se nanosheets (NSs) were synthesized via cation exchange starting from CuSe NSs, offering a universal platform for the synthesis of other metal selenide 2D nanomaterials.

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16

Hussain, Raja Azadar, and Iqtadar Hussain. "Synthetic efforts and applications of metal selenide nanotubes." Materials Science in Semiconductor Processing 126 (May 2021): 105656. http://dx.doi.org/10.1016/j.mssp.2020.105656.

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17

Singh, Tejinder, T. J. Mountziaris, and Dimitrios Maroudas. "Transition-metal doping of small cadmium selenide clusters." Applied Physics Letters 100, no. 5 (January 30, 2012): 053105. http://dx.doi.org/10.1063/1.3680254.

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18

Lin, Huihui, Qi Zhu, Dajun Shu, Dongjing Lin, Jie Xu, Xianlei Huang, Wei Shi, Xiaoxiang Xi, Jiangwei Wang, and Libo Gao. "Growth of environmentally stable transition metal selenide films." Nature Materials 18, no. 6 (March 11, 2019): 602–7. http://dx.doi.org/10.1038/s41563-019-0321-8.

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19

Lee, Eunsil, and Hoseop Yun. "A new mixed group 5 metal selenide, Nb1.41V0.59Se9." Acta Crystallographica Section E Structure Reports Online 67, no. 9 (August 27, 2011): i50. http://dx.doi.org/10.1107/s1600536811033319.

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20

Anthony, Savarimuthu Philip, and Jin Kon Kim. "Two-dimensional arrays of luminescent metal-selenide nanoparticle." Chemical Communications, no. 10 (2008): 1193. http://dx.doi.org/10.1039/b718232e.

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21

Mal, J., Y. V. Nancharaiah, E. D. van Hullebusch, and P. N. L. Lens. "Metal chalcogenide quantum dots: biotechnological synthesis and applications." RSC Advances 6, no. 47 (2016): 41477–95. http://dx.doi.org/10.1039/c6ra08447h.

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22

Machogo, Lerato F. E., Musa Mthimunye, Rudo K. Sithole, Phumlani Tetyana, Neo Phao, Grace N. Ngubeni, Mbuso Mlambo, Phumlane S. Mduli, Poslet M. Shumbula, and Nosipho Moloto. "Elucidating the structural properties of gold selenide nanostructures." New Journal of Chemistry 43, no. 15 (2019): 5773–82. http://dx.doi.org/10.1039/c9nj00142e.

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23

Cui, Lifeng, Haoyu Qi, Nannan Wang, Xin Gao, Chunyu Song, Jinghua Yang, Gang Wang, Shifeng Kang, and Xiaodong Chen. "N/S co-doped CoSe/C nanocubes as anode materials for Li-ion batteries." Nanotechnology Reviews 11, no. 1 (December 27, 2021): 244–51. http://dx.doi.org/10.1515/ntrev-2022-0018.

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Abstract The transition metal selenide can be used as a potential material for the negative electrode of lithium-ion batteries (LIBs) owing to its high density and conductivity. Unfortunately, a large volume change occurs in the transition metal selenide during the charging and discharging process, which eventually results in the poor rate performance and rapid capacity decay. In response to this, the N/S co-doped CoSe nanocubes (CoSe/C–NS) can be fabricated where the S-doped cobalt 2-methylimidazole (ZIF-67) as both sacrifice template and cobalt source to directly mix with selenium powder and followed by the annealing process. In the process, the carbon frameworks derived from ZIF-67 can establish a coating layer to protect the structure of materials, and simultaneously the N/S co-doping can enhance the conductivity and broaden the interlayer of frameworks. These can further accelerate the storage capacity and the Li+ insertion and deintercalation process. As a negative electrode material of LIBs, the CoSe/C–NS delivers the high capacity, high rate performance, and long-term cycle stability. This protocol opens up an approvable approach to fabricate efficient anode materials with persistent electrochemical stability in LIBs.

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24

LIU, YiKe, YaQin TANG, Jing WEI, Qing ZHAO, DaPeng YU, FangYang LIU, and LiangXing JIANG. "Preparation of metal selenide nanocrystals with hot-injection method." Chinese Science Bulletin 62, no. 23 (July 28, 2017): 2649–59. http://dx.doi.org/10.1360/n972017-00503.

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25

Tian, Zhi-Quan, Zhi-Ling Zhang, Peng Jiang, Ming-Xi Zhang, Hai-Yan Xie, and Dai-Wen Pang. "Core/Shell Structured Noble Metal (Alloy)/Cadmium Selenide Nanocrystals." Chemistry of Materials 21, no. 14 (July 28, 2009): 3039–41. http://dx.doi.org/10.1021/cm900867j.

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26

Bryks, Whitney, Stephanie C. Smith, and Andrea R. Tao. "Metallomesogen Templates for Shape Control of Metal Selenide Nanocrystals." Chemistry of Materials 29, no. 8 (April 12, 2017): 3653–62. http://dx.doi.org/10.1021/acs.chemmater.7b00459.

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27

Eze, F. C., and C. E. Okeke. "Characteristics of spin-coated metal-modified arsenic selenide films." Physica B: Condensed Matter 190, no. 2-3 (July 1993): 136–44. http://dx.doi.org/10.1016/0921-4526(93)90458-i.

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28

Kasiyan, V. A., D. D. Nedeoglo, and N. D. Nedeoglo. "Electrical Activity of Transition Metal Impurities in Zinc Selenide." physica status solidi (a) 178, no. 2 (April 2000): 721–30. http://dx.doi.org/10.1002/1521-396x(200004)178:2<721::aid-pssa721>3.0.co;2-w.

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29

Nuttall, Kern L. "A model for metal selenide formation under biological conditions." Medical Hypotheses 24, no. 2 (October 1987): 217–21. http://dx.doi.org/10.1016/0306-9877(87)90107-1.

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30

Heredia, Adrián A., and Alicia B. Peñéñory. "Transition-metal-free one-pot synthesis of alkynyl selenides from terminal alkynes under aerobic and sustainable conditions." Beilstein Journal of Organic Chemistry 13 (May 16, 2017): 910–18. http://dx.doi.org/10.3762/bjoc.13.92.

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Alkynyl selenides were synthesized by a straightforward one-pot and three-step methodology, without the need of diselenides as starting reagents, under an oxygen atmosphere and using PEG 200 as the solvent. This procedure involves the in situ generation of dialkyl diselenides through a K3PO4-assisted reaction of an alkyl selenocyanate obtained by a nucleophilic substitution reaction between KSeCN and alkyl halides. Successive reaction with terminal alkynes in the presence of t-BuOK affords the corresponding alkyl alkynyl selenide in moderate to good yields. Finally, this methodology allowed the synthesis of 2-alkylselanyl-substituted benzofuran and indole derivatives starting from convenient 2-substituted acetylenes.

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31

Velpandian, Muthuraja, and Praveen Meduri. "(Digital Presentation) Interface Engineering of Transition Metal-Selenide Heterostructures for Application in Electrochemical Water-Splitting." ECS Meeting Abstracts MA2022-01, no. 41 (July 7, 2022): 2490. http://dx.doi.org/10.1149/ma2022-01412490mtgabs.

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Transition metal selenides (TMS) have sparked great interest in energy storage and catalysis because they are direct bandgap materials, have a highly layered structure, high redox activity, abundant active sites at the edges, short diffusion paths, and large surface area1. However, low electrical conductivity and structural instability result in long-term performance degradation. The development of high-performance water electrolyzers and metal-air batteries requires the design and construction of efficient TMS electrocatalysts. In order to boost electrochemical activity, increasing emphasis has been devoted to interface engineering of TMS heterostructures through manipulation of composition, adjustment of crystal facets, and heteroatomic doping2. Interface engineering helps in optimizing reaction intermediates, modulating charge carrier characteristics, and preventing the aggregation of active components. Herein, we designed and studied the interface between hydrothermally synthesized tin selenide (SnSe2) and tungsten selenide (WSe2). The intimate electronic interaction between the bimetallic selenides leads to a rich interface boundary that reduces the surface energy and creates a larger number of active sites involved in both the hydrogen evolution and oxygen evolution reactions3. These heterostructures exhibited a low overpotential of 180 mV at 10 mA cm-2 and good stability of up to 12 hours for the hydrogen evolution reaction, and a low overpotential of 250 mV at 10 mA cm-2 and stability up to 12 hours for the oxygen evolution reaction. This study gives a better insight into the design of TMS heterostructures using interface engineering for high electrocatalytic activity. References: (1) Gbadamasi, S.; Mohiuddin, M.; Krishnamurthi, V.; Verma, R.; Khan, M. W.; Pathak, S.; Kalantar-Zadeh, K.; Mahmood, N. Interface Chemistry of Two-Dimensional Heterostructures – Fundamentals to Applications. Chem. Soc. Rev. 2021, 50 (7), 4684–4729. https://doi.org/10.1039/D0CS01070G. (2) Zhao, R.; Li, Q.; Jiang, X.; Huang, S.; Fu, G.; Lee, J.-M. Interface Engineering in Transition Metal-Based Heterostructures for Oxygen Electrocatalysis. Mater. Chem. Front. 2021, 5 (3), 1033–1059. https://doi.org/10.1039/D0QM00729C. (3) Chen, P.; Tong, Y.; Wu, C.; Xie, Y. Surface/Interfacial Engineering of Inorganic Low-Dimensional Electrode Materials for Electrocatalysis. Acc. Chem. Res. 2018, 51 (11), 2857–2866. https://doi.org/10.1021/acs.accounts.8b00266.

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32

Nayak, Rekha, Jane Galsworthy, Peter Dobson, and John Hutchison. "Synthesis of gold-cadmium selenide co-colloids." Journal of Materials Research 13, no. 4 (April 1998): 905–8. http://dx.doi.org/10.1557/jmr.1998.0123.

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Semiconductor-metal co-colloids of CdSey/Au have been prepared by various synthetic pathways. Their microstructure, including that of Au–CdSe(TOPO) co-colloid in a core-shell structure, has been examined by high resolution transmission electron microscopy (HRTEM) and found to be well defined within the 10 nm size range. The optical absorption spectra of the colloids and of various synthesis stages have been obtained.

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33

Xia, Xinyuan, Lujing Wang, Ning Sui, Vicki L. Colvin, and William W. Yu. "Recent progress in transition metal selenide electrocatalysts for water splitting." Nanoscale 12, no. 23 (2020): 12249–62. http://dx.doi.org/10.1039/d0nr02939d.

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34

Bansal, Ashu K., Muhammad T. Sajjad, Francesco Antolini, Lenuta Stroea, Paulius Gečys, Gediminas Raciukaitis, Pascal André, et al. "In situ formation and photo patterning of emissive quantum dots in small organic molecules." Nanoscale 7, no. 25 (2015): 11163–72. http://dx.doi.org/10.1039/c5nr01401h.

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35

Ji, Xiao-Xu, Qing-Huai Zhao, Hao Chen, Xin-Wei Luo, Yi Shang, and Xiao-Di Liu. "Facile Synthesis of Hierarchical CoSeO3‧2H2O Nanoflowers Assembled by Nanosheets as a Novel Anode Material for High-Performance Lithium-Ion Batteries." Nanomaterials 12, no. 14 (July 19, 2022): 2474. http://dx.doi.org/10.3390/nano12142474.

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As novel anodic materials for lithium-ion batteries (LIBs), transitional metal selenites can transform into metal oxide/selenide heterostructures in the first cycle, which helps to enhance the Li+ storage performance, especially in terms of high discharge capacity. Herein, well-defined hierarchical CoSeO3‧2H2O nanoflowers assembled using 10 nm-thick nanosheets are successfully synthesized via a facile one-step hydrothermal method. When used as anodic materials for LIBs, the CoSeO3‧2H2O nanoflowers exhibit a considerably high discharge capacity of 1064.1 mAh g−1 at a current density of 0.1 A g−1. In addition, the obtained anode possesses good rate capability and cycling stability. Owing to the superior electrochemical properties, the CoSeO3‧2H2O nanoflowers would serve as promising anodic materials for high-performance LIBs.

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36

Lv, Li-Ping, Chuanwei Zhi, Yun Gao, Xiaojie Yin, Yiyang Hu, Daniel Crespy, and Yong Wang. "Hierarchical “tube-on-fiber” carbon/mixed-metal selenide nanostructures for high-performance hybrid supercapacitors." Nanoscale 11, no. 29 (2019): 13996–4009. http://dx.doi.org/10.1039/c9nr03088c.

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37

Yang, Jian, Chaojun Lei, Hanqing Wang, Bin Yang, Zhongjian Li, Ming Qiu, Xiaodong Zhuang, et al. "High-index faceted binary-metal selenide nanosheet arrays as efficient 3D electrodes for alkaline hydrogen evolution." Nanoscale 11, no. 38 (2019): 17571–78. http://dx.doi.org/10.1039/c9nr06976c.

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38

Kephart, Jonathan A., Andrew C. Boggiano, Werner Kaminsky, and Alexandra Velian. "Inorganic clusters as metalloligands: ligand effects on the synthesis and properties of ternary nanopropeller clusters." Dalton Transactions 49, no. 45 (2020): 16464–73. http://dx.doi.org/10.1039/d0dt02416c.

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Wang, Ruilun, Yanhong Lyu, Shiqian Du, Shiyong Zhao, Hao Li, Li Tao, San Ping Jiang, Jianyun Zheng, and Shuangyin Wang. "Defect repair of tin selenide photocathode via in situ selenization: enhanced photoelectrochemical performance and environmental stability." Journal of Materials Chemistry A 8, no. 10 (2020): 5342–49. http://dx.doi.org/10.1039/c9ta13288k.

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40

Ming, Fangwang, Hanfeng Liang, Huanhuan Shi, Xun Xu, Gui Mei, and Zhoucheng Wang. "MOF-derived Co-doped nickel selenide/C electrocatalysts supported on Ni foam for overall water splitting." Journal of Materials Chemistry A 4, no. 39 (2016): 15148–55. http://dx.doi.org/10.1039/c6ta06496e.

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41

Singh, Harish, Manashi Nath, and Wipula Priya Rasika Liyanage. "Metal Selenide Anchored Carbon Nanotube for Boosted Oxygen Evolution Reaction." ECS Meeting Abstracts MA2022-01, no. 7 (July 7, 2022): 631. http://dx.doi.org/10.1149/ma2022-017631mtgabs.

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The oxygen evolution represents an important reaction in electrochemical water splitting and metal-air batteries. To deal with the increasing energy crisis and demand for sustainable clean energy, production of low-cost, high-efficiency, and robust oxygen evolution reaction (OER) electrocatalysts is urgently needed. Recently, transition metal chalcogenides (TMCs) have been used as active electrocatalysts for OER because of their high electrical conductivity and enhanced electrochemical activity. These chalcogenides based electrocatalysts show unprecedented high efficiency for OER exhibiting very low overpotentials, thereby surpassing state-of-the-art precious metal oxides or hydroxide-based catalysts. Carbon nanostructures have been shown to significantly improve their electrocatalytic performance even further. In the present work, nickel selenide nanorods (NRs) were grown inside carbon nanotubes (NiSe@CNT) through chemical vapor deposition (CVD) wherein, the carbon nanotube formed in-situ wrapping around the growing nickel selenide nanorods. Such intimate intermixing is expected to aid in rapid electron transfer from the catalyst composite and yield significantly higher current density. The encapsulation with a CNT shell can also expectedly increase stability of the selenide phase with respect to corrosion and anion leaching. Electrocatalytic behavior was explored by various electrochemical studies, including linear sweep voltammetry (LSV), chronoamperometric experiments, electrochemical surface area determination, and Tafel slope determination, under highly alkaline condition. It was observed that this NiSe@CNT composites showed enhanced electrocatalytic activity for OER. Our results indicate that the self-grown CNT around nickel selenide increases catalytic activity of this hybrid nanostructure due to an increased number of catalytic sites and electronic conductivity of the nanocomposite. The overpotential at 10 mA cm-2 for the as-synthesized NiSe@CNT catalyst is 270 mV which is much better than precious metal based electrocatalysts for OER, such as RuO2 and IrO2. In addition, the current-voltage plots were superimposable before and after 40 h of chronoamperometry test, confirming that the as-synthesized catalyst gives stable electrocatalytic OER activity in 1 M KOH medium for an extended time period. The as-synthesized catalyst was characterized by XRD, Raman spectroscopy, XPS and TEM for morphology, elemental and chemical compositions. Keywords: oxygen evolution reaction, carbon nanotubes, In-situ wrapping Figure 1

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Yuan, Yu, Panpan Cui, Jie Liu, Wei Ding, Yong Wang, and Liping Lv. "Carbon-Encased Mixed-Metal Selenide Rooted with Carbon Nanotubes for High-Performance Hybrid Supercapacitors." Molecules 27, no. 21 (November 3, 2022): 7507. http://dx.doi.org/10.3390/molecules27217507.

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Transition metal-based compounds with high theoretical capacitance and low cost represent one class of promising electrode materials for high-performance supercapacitors. However, their low intrinsic electrical conductivity impedes their capacitive effect and further limits their practical application. Rational regulation of their composition and structure is, therefore, necessary to achieve a high electrode performance. Herein, a well-designed carbon-encased mixed-metal selenide rooted with carbon nanotubes (Ni-Co-Se@C-CNT) was derived from nickel–cobalt bimetallic organic frameworks. Due to the unique porous structure, the synergistic effect of bimetal selenides and the in situ growth of carbon nanotubes, the composite exhibits good electrical conductivity, high structural stability and abundant redox active sites. Benefitting from these merits, the Ni-Co-Se@C-CNT exhibited a high specific capacity of 554.1 C g−1 (1108.2 F g−1) at 1 A g−1 and a superior cycling performance, i.e., 96.4% of the initial capacity was retained after 5000 cycles at 10 A g−1. Furthermore, a hybrid supercapacitor assembled with Ni-Co-Se@C-CNT cathode and activated carbon (AC) anode shows a superior energy density of 38.2 Wh kg−1 at 1602.1 W kg−1.

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Sharma, Rakesh K., Amey Wadawale, G. Kedarnath, Debashree Manna, Tapan K. Ghanty, B. Vishwanadh, and Vimal K. Jain. "Synthesis, structures and DFT calculations of 2-(4,6-dimethyl pyrimidyl)selenolate complexes of Cu(i), Ag(i) and Au(i) and their conversion into metal selenide nanocrystals." Dalton Trans. 43, no. 17 (2014): 6525–35. http://dx.doi.org/10.1039/c4dt00012a.

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Shi, Xin, Hui Wang, Palanisamy Kannan, Jieting Ding, Shan Ji, Fusheng Liu, Hengjun Gai, and Rongfang Wang. "Rich-grain-boundary of Ni3Se2 nanowire arrays as multifunctional electrode for electrochemical energy storage and conversion applications." Journal of Materials Chemistry A 7, no. 7 (2019): 3344–52. http://dx.doi.org/10.1039/c8ta10912e.

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Controllable nanoarchitecture arrays of the transition metal selenide, supported on conductive substrates, are promising materials for high-performance electrochemical energy storage and conversion applications.

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45

Singh, Harish, Wipula Liyanage, and Manashi Nath. "Carbon Nanotube Encapsulated Metal Selenide Eelectrocatalyst for Oxygen Evolution Reaction." ECS Meeting Abstracts MA2021-01, no. 38 (May 30, 2021): 1200. http://dx.doi.org/10.1149/ma2021-01381200mtgabs.

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46

Dagotto, Elbio. "Colloquium: The unexpected properties of alkali metal iron selenide superconductors." Reviews of Modern Physics 85, no. 2 (May 20, 2013): 849–67. http://dx.doi.org/10.1103/revmodphys.85.849.

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Dauplais, Marc, Myriam Lazard, Sylvain Blanquet, and Pierre Plateau. "Neutralization by Metal Ions of the Toxicity of Sodium Selenide." PLoS ONE 8, no. 1 (January 14, 2013): e54353. http://dx.doi.org/10.1371/journal.pone.0054353.

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Pahari, Sandip Kumar, Provas Pal, Arka Saha, Sourindra Mahanty, and Asit Baran Panda. "An alternative hydrolytic synthesis route for uniform metal selenide nanoparticles." RSC Advances 3, no. 37 (2013): 16322. http://dx.doi.org/10.1039/c3ra42359j.

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Kedarnath, G., Sandip Dey, Vimal K. Jain, and Gautam K. Dey. "Synthesis and Characterization of Metal Selenide (ZnSe, CdSe, HgSe) Nanoparticles." Journal of Nanoscience and Nanotechnology 6, no. 4 (April 1, 2006): 1031–37. http://dx.doi.org/10.1166/jnn.2006.154.

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Jin, Xingrui, Lidan Zhang, Guiming Shu, Ruji Wang, and Hongyou Guo. "Synthesis and characterization of a novel quaternary metal selenide, K2Hg3Ge2Se8." Journal of Alloys and Compounds 347, no. 1-2 (December 2002): 67–71. http://dx.doi.org/10.1016/s0925-8388(02)00780-6.

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