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Journal articles on the topic 'Cu99.5'

Author: Grafiati
Published: 28 June 2021
Last updated: 11 February 2022

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1

Böhner, Andreas, Florian Kriebel, Rimma Lapovok, Heinz Werner Höppel, and Mathias Göken. "Influence of Backpressure During ECAP on the Monotonic and Cyclic Deformation Behavior of AA5754 and Cu99.5." Advanced Engineering Materials 13, no. 4 (January 3, 2011): 269–74. http://dx.doi.org/10.1002/adem.201000269.

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2

Greß, Thomas, Jens Stahl, Tim Mittler, Lukas Spano, Hui Chen, Noomane Ben Khalifa, and Wolfram Volk. "Mechanical characterization of as-cast AA7075/6060 and CuSn6/Cu99.5 compounds using an experimental and numerical push-out test." Materials Science and Engineering: A 751 (March 2019): 214–25. http://dx.doi.org/10.1016/j.msea.2019.02.080.

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3

Anand, Vikky, Harshavardhan, and Vimal Chandra Srivastava. "Synthesis and Characterization of Copper Nanoparticles by Electrochemical Method: Effect of pH." Journal of Nano Research 31 (April 2015): 81–92. http://dx.doi.org/10.4028/www.scientific.net/jnanor.31.81.

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Herein, copper nanoparticles were synthesized using electrochemical method at pH 5, 6.5, 9.5 and 12.5 (coded as Cu5, Cu6.5, Cu9.5 and Cu12.5, respectively). Copper was used as electrode whereas 0.15 M oxalic acid in aqueous solution was used as an electrolyte. Effect of pH of the electrolyte solution on the morphological, structural and textural properties of prepared copper nonoparticles was studied. Prepared nanoparticles were characterized by X-ray crystallography, Field emission scanning electron microscope, transmission electron microscopy, thermogravimetric analysis, differential thermal analysis and textural analysis. The morphology and sizes of the nanoparticles prepared varied with the initial pH of the solution. Sizes of synthesized Cu particles were found to be in the range of 20 nm to 7 μm. All the particles were mesoporous in nature. Cu5 was found to contain 67% copper hydroxide and 33% copper oxalate whereas Cu6.5, Cu9.5 and Cu12.5 essentially consisted of copper hydroxide.
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4

Elkaseer, AM, SS Dimov, DT Pham, KP Popov, L. Olejnik, and A. Rosochowski. "Material microstructure effects in micro-endmilling of Cu99.9E." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 232, no. 7 (September 22, 2016): 1143–55. http://dx.doi.org/10.1177/0954405416666898.

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This article presents an investigation of the machining response of metallurgically and mechanically modified materials at the micro-scale. Tests were conducted that involved micro-milling slots in coarse-grained Cu99.9E with an average grain size of 30 µm and ultrafine-grained Cu99.9E with an average grain size of 200 nm, produced by equal channel angular pressing. A new method based on atomic force microscope measurements is proposed for assessing the effects of material homogeneity changes on the minimum chip thickness required for a robust micro-cutting process with a minimum surface roughness. The investigation has shown that by refining the material microstructure the minimum chip thickness can be reduced and a high surface finish can be obtained. Also, it was concluded that material homogeneity improvements lead to a reduction in surface roughness and surface defects in micro-cutting.
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5

Duan, Xiaobo, Yanhong Ding, and Meng Yu. "Research on CuxSy/CoSz/graphene supercapacitor electrode materials." Materials Express 10, no. 10 (October 31, 2020): 1725–31. http://dx.doi.org/10.1166/mex.2020.1819.

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Multilayer graphene was prepared in this study by microwave burst method. Cu9S5/CoS/graphene and CuS/CoS2/graphene composites were obtained by hydrothermal method to regulate the molecular structure and combination of Cu and Co metal sulfides on graphene substrate. Graphite oxide was doped by hydrothermal method, and then Cu9S5/CoS/graphene composite was prepared by microwave explosion method. Raman, SEM and TEM were used to characterize the self-made graphene. Results showed that the multilayer graphene had a bag-like structure which was beneficial to anchor sulfide. Three graphene-based composites were characterized by scanning electron microscopy, X-ray diffraction, energy spectrum analysis and electrochemical properties. Moreover, results showed that CuS/CoS2/graphene had the best electrochemical performance, and its specific capacity reached 324 F/g when the current density was 1 A · g–1, which was much higher than that of the other two samples. Capacity retention rate, interfacial charge transfer resistance and electrolyte diffusion resistance also have advantages.
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6

Tao, Fujun, Michael Green, Anh Thi Van Tran, Yuliang Zhang, Yansheng Yin, and Xiaobo Chen. "Plasmonic Cu9S5 Nanonets for Microwave Absorption." ACS Applied Nano Materials 2, no. 6 (May 28, 2019): 3836–47. http://dx.doi.org/10.1021/acsanm.9b00700.

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7

Setzer, Annette, Pablo D. Esquinazi, Lukas Botsch, Oliver Baehre, Eti Teblum, Anat Itzhak, Olga Girshevitz, and Gilbert Daniel Nessim. "Magnetic phase transitions around room temperature in Cu9S5." Phase Transitions 92, no. 4 (March 5, 2019): 385–95. http://dx.doi.org/10.1080/01411594.2019.1586901.

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8

Qin, Lixia, Guofeng Si, Xiangqing Li, and Shi-Zhao Kang. "Synergetic effect of Cu–Pt bimetallic cocatalyst on SrTiO3 for efficient photocatalytic hydrogen production from water." RSC Advances 5, no. 124 (2015): 102593–98. http://dx.doi.org/10.1039/c5ra22757g.

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The introduction of the Cu–Pt bimetal results in a significant improvement in the photocatalytic activity of STO. The hydrogen generation rate over STO/Cu95–Pt5 was about 46.6 and 2.79 times of STO and STO/Cu100–Pt0, respectively.
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9

Liu, Shan, Xinyue Zhang, Rongsheng Li, Libo Gao, and Jiayan Luo. "Dendrite-free Li metal anode by lowering deposition interface energy with Cu99Zn alloy coating." Energy Storage Materials 14 (September 2018): 143–48. http://dx.doi.org/10.1016/j.ensm.2018.03.004.

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10

Peng, Zhi, Sibai Li, Mouyi Weng, Mingjian Zhang, Chao Xin, Zheng Du, Jiaxin Zheng, and Feng Pan. "First-Principles Study of Cu9S5: A Novel p-Type Conductive Semiconductor." Journal of Physical Chemistry C 121, no. 42 (October 18, 2017): 23317–23. http://dx.doi.org/10.1021/acs.jpcc.7b07843.

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11

Portone, A., L. Bellucci, D. Convertino, F. Mezzadri, G. Piccinini, M. A. Giambra, V. Miseikis, F. Rossi, C. Coletti, and F. Fabbri. "Deterministic synthesis of Cu9S5 flakes assisted by single-layer graphene arrays." Nanoscale Advances 3, no. 5 (2021): 1352–61. http://dx.doi.org/10.1039/d0na00997k.

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The employment of 2D materials, as growth substrates or buffer layers, enables the epitaxial growth of layered materials with different crystalline symmetries with a preferential crystalline orientation and the synthesis of heterostructures with a large lattice constant mismatch.
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12

Itzhak, Anat, Eti Teblum, Olga Girshevitz, Sivan Okashy, Yury Turkulets, Luba Burlaka, Gili Cohen-Taguri, et al. "Digenite (Cu9S5): Layered p-Type Semiconductor Grown by Reactive Annealing of Copper." Chemistry of Materials 30, no. 7 (March 12, 2018): 2379–88. http://dx.doi.org/10.1021/acs.chemmater.8b00191.

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13

Zhou, Xin, Zaifeng Li, Xueshuang Deng, Bing Yan, Zengbo Wang, Xiaohong Chen, and Sumei Huang. "High performance perovskite solar cells using Cu9S5 supraparticles incorporated hole transport layers." Nanotechnology 30, no. 44 (August 14, 2019): 445401. http://dx.doi.org/10.1088/1361-6528/ab3604.

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14

Xu, Dongmei, Yunfei Yang, Kai Le, Guanwen Wang, Ancheng Ouyang, Bin Li, Wei Liu, et al. "Bifunctional Cu9S5/C octahedral composites for electromagnetic wave absorption and supercapacitor applications." Chemical Engineering Journal 417 (August 2021): 129350. http://dx.doi.org/10.1016/j.cej.2021.129350.

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15

Tao, Fujun, Yuliang Zhang, Fuhua Zhang, Lijun Yang, Yan An, and Yansheng Yin. "Influence of potassium chloride on the structure of Cu9S5 nanosheets with hexagonal holes." Materials Letters 140 (February 2015): 166–69. http://dx.doi.org/10.1016/j.matlet.2014.11.026.

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16

Hu, Maowei, Ze Yu, JiaJia Li, Xiaoqing Jiang, Jianbo Lai, Xichuan Yang, Mei Wang, and Licheng Sun. "Low-cost solution-processed digenite Cu9S5 counter electrode for dye-sensitized solar cells." RSC Advances 7, no. 61 (2017): 38452–57. http://dx.doi.org/10.1039/c7ra06822k.

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Cu9S5 nanocrystalline film is fabricated by a solution-processed method with a low temperature post-treatment at 250 °C and it is further explored as a counter electrode (CE) material in DSSCs.
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17

Lee, Min Ha, Jin Kyu Lee, Kyung Tae Kim, Jürgen Thomas, Jayanta Das, Uta Kühn, and Jürgen Eckert. "Deformation-induced microstructural heterogeneity in monolithic Zr44 Ti11 Cu9.8 Ni10.2 Be25 bulk metallic glass." physica status solidi (RRL) - Rapid Research Letters 3, no. 2-3 (December 19, 2008): 46–48. http://dx.doi.org/10.1002/pssr.200802242.

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18

Liang, Shuang, Zhongxi Xie, Yi Wei, Ziyong Cheng, Yanqiu Han, and Jun Lin. "DNA decorated Cu9S5 nanoparticles as NIR light responsive drug carriers for tumor chemo–phototherapy." Dalton Transactions 47, no. 24 (2018): 7916–24. http://dx.doi.org/10.1039/c8dt01174e.

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19

Chen, Yinyin, Zhiyao Hou, Bei Liu, Shanshan Huang, Chunxia Li, and Jun Lin. "DOX-Cu9S5@mSiO2-PG composite fibers for orthotopic synergistic chemo- and photothermal tumor therapy." Dalton Transactions 44, no. 7 (2015): 3118–27. http://dx.doi.org/10.1039/c4dt03113j.

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A composite antitumor drug carrier platform, in which antitumor drug doxorubicin (DOX) loaded Cu9S5@mSiO2 nanoparticles were incorporated into poly(ε-caprolactone) and gelatin to form nanofibrous fabrics using an electrospinning process, was successfully assembled.
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20

An, Wei, Jinrui Wu, Tong Zhu, and Qunzhi Zhu. "Experimental investigation of a concentrating PV/T collector with Cu9S5 nanofluid spectral splitting filter." Applied Energy 184 (December 2016): 197–206. http://dx.doi.org/10.1016/j.apenergy.2016.10.004.

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21

Cao, Miaomiao, Hui Wang, Xingpu Wang, Fangshuai Chen, Shan Ji, Sivakumar Pasupathi, and Rongfang Wang. "Dual-shelled Cu2O@Cu9S5@MnO2 hollow spheres as advanced cathode material for energy storage." Journal of Alloys and Compounds 805 (October 2019): 977–83. http://dx.doi.org/10.1016/j.jallcom.2019.07.172.

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22

Wang, Le, Yongteng Qian, Jimin Du, Haoran Wu, Zheng Wang, Gang Li, Kaidi Li, Weiming Wang, and Dae Joon Kang. "Facile synthesis of cactus-shaped CdS-Cu9S5 heterostructure on copper foam with enhanced photoelectrochemical performance." Applied Surface Science 492 (October 2019): 849–55. http://dx.doi.org/10.1016/j.apsusc.2019.06.264.

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23

Li, Shuangming, Wenjun Cheng, Xueting Liu, Chaohui Wang, Wenxiu Li, and Sansan Yu. "Supercritical methanol synthesis, phase evolution and formation mechanism of Cu1.8S and Cu9S5/CuS complex microcrystal." Journal of Supercritical Fluids 133 (March 2018): 429–36. http://dx.doi.org/10.1016/j.supflu.2017.11.007.

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24

Han, Dong, Cuncun Wu, Qiaohui Zhang, Shiyuan Wei, Xin Qi, Yunbiao Zhao, Yi Chen, Yuhan Chen, Lixin Xiao, and Ziqiang Zhao. "Solution-Processed Cu9S5 as a Hole Transport Layer for Efficient and Stable Perovskite Solar Cells." ACS Applied Materials & Interfaces 10, no. 37 (August 28, 2018): 31535–40. http://dx.doi.org/10.1021/acsami.8b08888.

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25

Wang, Ying, Fuyang Liu, Ying Ji, Min Yang, Wei Liu, Wei Wang, Qiushi Sun, Ziqing Zhang, Xudong Zhao, and Xiaoyang Liu. "Controllable synthesis of various kinds of copper sulfides (CuS, Cu7S4, Cu9S5) for high-performance supercapacitors." Dalton Transactions 44, no. 22 (2015): 10431–37. http://dx.doi.org/10.1039/c5dt00402k.

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26

An, Na, Ying Wang, Meng Li, Huiming Lin, and Fengyu Qu. "The synthesis of core–shell Cu9S5@mSiO2–ICG@PEG–LA for photothermal and photodynamic therapy." New Journal of Chemistry 42, no. 22 (2018): 18318–27. http://dx.doi.org/10.1039/c8nj03712d.

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27

Liao, Jun, Mingquan Ye, Aijun Han, Jianming Guo, Qingzhong Liu, and Gaoqiang Yu. "Boosted electromagnetic wave absorption performance from multiple loss mechanisms in flower-like Cu9S5/RGO composites." Carbon 177 (June 2021): 115–27. http://dx.doi.org/10.1016/j.carbon.2021.02.060.

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28

Ravele, Murendeni P., Opeyemi A. Oyewo, and Damian C. Onwudiwe. "Controlled Synthesis of CuS and Cu9S5 and Their Application in the Photocatalytic Mineralization of Tetracycline." Catalysts 11, no. 8 (July 25, 2021): 899. http://dx.doi.org/10.3390/catal11080899.

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Pure-phase Cu2−xS (x = 1, 0.2) nanoparticles have been synthesized by the thermal decomposition of copper(II) dithiocarbamate as a single-source precursor in oleylamine as a capping agent. The compositions of the Cu2−xS nanocrystals varied from CuS (covellite) through the mixture of phases (CuS and Cu7.2S4) to Cu9S5 (digenite) by simply varying the temperature of synthesis. The crystallinity and morphology of the copper sulfides were studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), which showed pure phases at low (120 °C) and high (220 °C) temperatures and a mixture of phases at intermediate temperatures (150 and 180 °C). Covellite was of a spherical morphology, while digenite was rod shaped. The optical properties of these nanocrystals were characterized by UV−vis–NIR and photoluminescence spectroscopies. Both samples had very similar absorption spectra but distinguishable fluorescence properties and exhibited a blue shift in their band gap energies compared to bulk Cu2−xS. The pure phases were used as catalysts for the photocatalytic degradation of tetracycline (TC) under visible-light irradiation. The results demonstrated that the photocatalytic activity of the digenite phase exhibited higher catalytic degradation of 98.5% compared to the covellite phase, which showed 88% degradation within the 120 min reaction time using 80 mg of the catalysts. The higher degradation efficiency achieved with the digenite phase was attributed to its higher absorption of the visible light compared to covellite.
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29

Cojocaru, Radu, Cristian Ciucă, Lia Nicoleta Boţilă, Victor Verbiţchi, and Ion Aurel Perianu. "New Joining Techniques for the Production of the Electrical Components in the Automotive Industry." Advanced Materials Research 1146 (April 2018): 98–105. http://dx.doi.org/10.4028/www.scientific.net/amr.1146.98.

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In the paper are presented some preliminary results regarding the possibilities of using of the friction stir welding process (FSW) and FSW assisted with TIG (FSW – TIG) welding for joining of the electrical components in the automotive industry. Couples of dissimilar materials approached in experiments were Aluminium EN AW 1200 and Copper Cu99, with thicknesses in conformity with real cases in the production process. The results obtained for butt welding an overlap welding of different thicknesses of materials (aluminium thickness s1 = 2mm and copper thickness s2 = 5mm) are presented. There are some general conclusions regarding the possibilities of joining the two materials under the specified conditions.
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30

Jing, Mingjun, Fengliang Long, Luming Jing, Xiaopei Lv, Jiaheng Zhang, and Tianjing Wu. "Dataset analysis on Cu9S5 material structure and its electrochemical behavior as anode for sodium-ion batteries." Data in Brief 20 (October 2018): 790–93. http://dx.doi.org/10.1016/j.dib.2018.08.168.

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31

Luo, Xiaolin, Huanting Hu, Zhe Pan, Fei Pei, Huaming Qian, Kangkang Miao, Sifan Guo, Wei Wang, and Guodong Feng. "Efficient and stable catalysis of hollow Cu9S5 nanospheres in the Fenton-like degradation of organic dyes." Journal of Hazardous Materials 396 (September 2020): 122735. http://dx.doi.org/10.1016/j.jhazmat.2020.122735.

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32

Cheng, Yong, Shouyong Deng, Feifei Sun, and Ying-Hua Zhou. "Synthesis of luminescent Cu9S5 nanoclusters from copper-2,5-dimercapto-1,3,4-thiadiazole coordination polymer as pH sensor." Journal of Luminescence 210 (June 2019): 38–46. http://dx.doi.org/10.1016/j.jlumin.2019.02.014.

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33

Jing, Mingjun, Fangyi Li, Mengjie Chen, Jiaheng Zhang, Fengliang Long, Luming Jing, Xiaopei Lv, Xiaobo Ji, and Tianjing Wu. "Facile synthetic strategy to uniform Cu9S5 embedded into carbon: A novel anode for sodium-ion batteries." Journal of Alloys and Compounds 762 (September 2018): 473–79. http://dx.doi.org/10.1016/j.jallcom.2018.05.224.

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34

Kumar, Prashant, Meenakshi Gusain, and Rajamani Nagarajan. "Solvent-Mediated Room Temperature Synthesis of Highly Crystalline Cu9S5 (Cu1.8S), CuSe, PbS, and PbSe from Their Elements." Inorganic Chemistry 51, no. 15 (July 12, 2012): 7945–47. http://dx.doi.org/10.1021/ic301422x.

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35

Sithole, Rudo K., Lerato F. E. Machogo, Makwena J. Moloto, Siziwe S. Gqoba, Kalenga P. Mubiayi, Juanita Van Wyk, and Nosipho Moloto. "One-step synthesis of Cu3N, Cu2S and Cu9S5 and photocatalytic degradation of methyl orange and methylene blue." Journal of Photochemistry and Photobiology A: Chemistry 397 (June 2020): 112577. http://dx.doi.org/10.1016/j.jphotochem.2020.112577.

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36

Liang, Chenglu, Xingqiu Li, Jiale Han, Nini Ye, Han Liu, Hailong Feng, Li Huang, Yang Liu, and Xiangfang Peng. "Hierarchical Cu/Cu2O structure derived from hexagonal Cu9S5 nanocrystal with enhanced electrocatalytic ability for hydrogen evolution reaction." Journal of Alloys and Compounds 883 (November 2021): 160816. http://dx.doi.org/10.1016/j.jallcom.2021.160816.

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37

Allia, P., M. Coisson, P. Tiberto, and F. Vinai. "Low-temperature magnetization and magnetoresistance of the interacting nanogranular superparamagnet Cu95 Co5." Journal of Magnetism and Magnetic Materials 272-276 (May 2004): 1482–84. http://dx.doi.org/10.1016/j.jmmm.2003.12.187.

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38

Tao, Fujun, Yuliang Zhang, Fuhua Zhang, Yan An, Lihua Dong, and Yansheng Yin. "Structural evolution from CuS nanoflowers to Cu9S5 nanosheets and their applications in environmental pollution removal and photothermal conversion." RSC Advances 6, no. 68 (2016): 63820–26. http://dx.doi.org/10.1039/c6ra09092c.

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The influence of crystal phase and morphologies from 3D CuS nanoflowers to Cu9S5 nanosheets with hexagonal holes on their photothermal conversion and photocatalytic activity were systemically investigated.
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39

Zhang, Zhili, Han Zhu, Jican Hao, Shuanglong Lu, Fang Duan, Fangping Xu, and Mingliang Du. "One-dimensional, space-confined, solid-phase growth of the Cu9S5@MoS2 core–shell heterostructure for electrocatalytic hydrogen evolution." Journal of Colloid and Interface Science 595 (August 2021): 88–97. http://dx.doi.org/10.1016/j.jcis.2021.03.097.

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40

Grguric, B. A., R. J. Harrison, and A. Putnis. "A revised phase diagram for the bornite-digenite join from in situ neutron diffraction and DSC experiments." Mineralogical Magazine 64, no. 2 (April 2000): 213–31. http://dx.doi.org/10.1180/002646100549319.

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AbstractPhase relations along the join bornite (Cu5FeS4)-digenite (Cu8.52Fe0.12S4.88) have been redefined using a combination of in situ high-resolution neutron diffraction and differential scanning calorimetry (DSC). Time-of-flight neutron diffraction patterns were collected on a synthetic sample of bn90 at 16 temperatures between 35 and 350°C. This data is compared with data from a natural end-member bornite sample obtained in an earlier study under identical conditions. Phase relations along the bornite-digenite join are inferred from the temperature evolution of the lattice parameters and the intensity of subcell and supercell reflections of coexisting phases.The DSC scans over the temperature range 50–300°C were performed on a natural digenite sample and samples synthesized at 5 mol.% intervals along the join Cu5FeS4-Cu9S5. The thermal anomalies are correlated with structural phase transitions in componen phases and the solvus temperature for each bulk composition. A phase diagram topology is defined, which was consistent with both diffraction and calorimetric data, but in marked contrast to previous diagrams, shows a consolute point at X = Cu5FeS4 and T = 265°C. This temperature corresponds to that of the tricritical intermediate-high transition in bornite. Isothermal annealing experiments carried out on synthetic starting materials for up to 7 months showed coarsening behaviour consistent with the revised phase diagram topology.
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41

Cojocaru, Radu, Lia Boțilă, Victor Verbiţchi, and Cristian Ciucă. "New Ecological Technique for Soldering of Metallic Materials." Advanced Materials Research 1029 (September 2014): 218–23. http://dx.doi.org/10.4028/www.scientific.net/amr.1029.218.

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The performances, qualities and extraordinary development potential of the friction stir welding process (FSW) are well known in the world, both in the scientific and industrial areas. The innovative technical developments, based on the principle of the FSW process, conducted at ISIM Timisoara, as well as the results obtained so far have put the foundation for initiating a new method for bonding of materials, namely friction stir soldering. The principle of the new soldering process is based on important features of the FSW process. The paper presents the results of a program of experiments, which had as its main objective checking whether the new proposed soldering process is viable and applicable. Positive results were obtained by the soldering tests of copper (Cu99), brass (CuZn39Pb2) and steel (S235). Promoting this new environmentally friendly process of soldering is beneficial, because it complies with the current trends worldwide regarding both the environment and health.
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42

Kumar, Prashant, Meenakshi Gusain, and Rajamani Nagarajan. "ChemInform Abstract: Solvent-Mediated Room Temperature Synthesis of Highly Crystalline Cu9S5(Cu1.8S), CuSe, PbS, and PbSe from Their Elements." ChemInform 43, no. 43 (September 27, 2012): no. http://dx.doi.org/10.1002/chin.201243018.

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43

Liu, Bei, Xinyang Zhang, Chunxia Li, Fei He, Yinyin Chen, Shanshan Huang, Dayong Jin, Piaoping Yang, Ziyong Cheng, and Jun Lin. "Magnetically targeted delivery of DOX loaded Cu9S5@mSiO2@Fe3O4-PEG nanocomposites for combined MR imaging and chemo/photothermal synergistic therapy." Nanoscale 8, no. 25 (2016): 12560–69. http://dx.doi.org/10.1039/c5nr06322a.

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44

Tian, Qiwei, Feiran Jiang, Rujia Zou, Qian Liu, Zhigang Chen, Meifang Zhu, Shiping Yang, Jinglong Wang, Jianhua Wang, and Junqing Hu. "Hydrophilic Cu9S5 Nanocrystals: A Photothermal Agent with a 25.7% Heat Conversion Efficiency for Photothermal Ablation of Cancer Cells in Vivo." ACS Nano 5, no. 12 (November 15, 2011): 9761–71. http://dx.doi.org/10.1021/nn203293t.

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45

Yu, R. H., X. X. Zhang, J. Tejada, M. Knobel, P. Tiberto, P. Allia, and F. Vinai. "Improved giant magnetoresistance in magnetic granular Co5 Cu95 alloys by direct-current joule heating." Zeitschrift für Physik B Condensed Matter 99, no. 1 (March 1995): 159–61. http://dx.doi.org/10.1007/bf02769928.

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46

Yu, R. H., X. X. Zhang, J. Tejada, M. Knobel, P. Tiberto, P. Allia, and F. Vinai. "Improved giant magnetoresistance in magnetic granular Co5 Cu95 alloys by direct-current joule heating." Zeitschrift für Physik B Condensed Matter 99, no. 2 (March 1995): 159–61. http://dx.doi.org/10.1007/s002570050023.

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47

Wolicka, Dorota, and Andrzej Borkowski. "Influence of electron donors and copper concentration on geochemical and mineralogical processes under conditions of biological sulphate reduction." Acta Geologica Polonica 64, no. 1 (March 1, 2014): 138–46. http://dx.doi.org/10.2478/agp-2014-0007.

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Abstract Sulphidogenous microorganism communities were isolated from soil polluted by crude oil. The study was focused on determining the influence of 1) copper (II) concentration on the activity of selected microorganism communities and 2) the applied electron donor on the course and evolution of mineral-forming processes under conditions favouring growth of sulphate-reducing bacteria (SRB). The influence of copper concentration on the activity of selected microorganism communities and the type of mineral phases formed was determined during experiments in which copper (II) chloride at concentrations of 0.1, 0.2, 0.5 and 0.7 g/L was added to SRB cultures. The experiments were performed in two variants: with ethanol (4 g/L) or lactate (4 g/L) as the sole carbon source. In order to determine the taxonomic composition of the selected microorganism communities, the 16S rRNA method was used. Results of this analysis confirmed the presence of Desulfovibrio, Desulfohalobium, Desulfotalea, Thermotoga, Solibacter, Gramella, Anaeromyxobacter and Myxococcus sp. in the stationary cultures. The post-culture sediments contained covelline (CuS) and digenite (Cu9S5 ). Based on the results, it can be stated that the type of carbon source applied during incubation plays a crucial role in determining the mineral composition of the post-culture sediments. Thus, regardless of the amount of copper ion introduced to a culture with lactate as the sole carbon source, no copper sulphide was observed in the post-culture sediments. Cultures with ethanol as the sole carbon source, on the other hand, yielded covelline or digenite in all post-culture sediments.
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48

Grguric, B. A., and A. Putnis. "Rapid exsolution behaviour in the bornite–digenite series, and implications for natural ore assemblages." Mineralogical Magazine 63, no. 1 (February 1999): 1–12. http://dx.doi.org/10.1180/002646199548213.

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AbstractIntermediate compositions along the bornite–digenite join exsolve during quenching from above-solvus temperatures. This involves vacancy clustering and cation ordering processes, and is facilitated by fast cation diffusion rates in the presence of a large (10–25%) metal vacancy population. Samples of six different compositions across the bornite–Cu9S5 join, synthesised from component elements in sealed quartz capsules, were water-quenched from 600°C and analysed using high-resolution neutron powder diffraction (HRPD). Time-of-flight spectra measured at room temperature showed all intermediate compositions had exsolved into mixtures of bornite and low digenite with a 5.0a superstructure. No evidence for the presence of any other phase was found. Variations in the lattice parameters of the exsolved bornite phase were observed for different bulk compositions across the join, and ascribed to variations in the degree of order. Bornite exsolved from digenite-rich compositions may not be fully ordered due to the much lower solvus temperatures at the Cu-rich end of the solid solution. As only slight differences were observed between the diffraction patterns of a visibly exsolved and a rapidly quenched sample of the same bulk composition, the formation of optically-visible exsolution lamellae on {100} is ascribed to a process of coalescence of sub-microscopic domains initially formed during the quenching process. The rapid kinetics of exsolution at geologically low temperatures, explains the lack of authenticated natural occurrences of intermediate compositions in the solid solution in nature, and the limited degree of stoichiometric variation observed in end-members.
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49

Barnard, R. D., and R. F. Al‐Naimi. "Dzyaloshinsky–Moriya interaction in the spin‐glass system Cu95−xAuxMn5: Hall effect and ac susceptibility." Journal of Applied Physics 64, no. 10 (November 15, 1988): 5622–24. http://dx.doi.org/10.1063/1.342301.

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50

Li, Shuangming, Zhe Zhang, Lin Yan, Shengnan Jiang, Ning Zhu, Jian Li, Wenxiu Li, and Sansan Yu. "Fast synthesis of CuS and Cu9S5 microcrystal using subcritical and supercritical methanol and their application in photocatalytic degradation of dye in water." Journal of Supercritical Fluids 123 (May 2017): 11–17. http://dx.doi.org/10.1016/j.supflu.2016.12.014.

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