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Статті в журналах з теми "Cu nanowire array"

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Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 28 січня 2023

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1

Choi, Soon Mee, Jiung Cho, Young Keun Kim, and Cheol Jin Kim. "TEM Analysis of Multilayered Co/Cu Nanowire Synthesized by DC Electrodeposition." Solid State Phenomena 124-126 (June 2007): 1233–36. http://dx.doi.org/10.4028/www.scientific.net/ssp.124-126.1233.

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Анотація:

As-received multilayered Co/Cu nanowire arrays were examined by TEM, which were synthesized by pulsed DC electrodeposition using anodized aluminum oxide (AAO) templates. The multilayered Co/Cu nanowire exhibited magnetism in the perpendicular direction to the long wire axis. These nanowire can be applied to sensor array, magnetic bead(biocompatible), MRI contrast enhancing agent, ferro-fluid. Although the characterization of the multilayered Co/Cu nanowire using XRD and VSM and microstructural analysis using TEM on the bare nanowires extracted from AAO templates have been reported, interface analysis between Co and Cu phase or HREM analysis has not been reported in detail. We have prepared TEM specimen with large thin area which was appropriate for the interface analysis between Co and Cu layer without removing AAO templates using tripod polishing method. Tripod polishing proved very efficient to secure the large observable area during TEM session since the polishing angle can be precisely controlled, regardless of the mechanical strength differences in constituents. Thus we could observe not only the interface between Co and Cu layer but also the interface between the metallic layers and AAO templates. Microstructure, composition, and the concentration variation of each Co and Cu layer and the interfaces were analyzed with TEM and STEM.

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2

Marchal, Nicolas, Tristan da Câmara Santa Clara Gomes, Flavio Abreu Araujo, and Luc Piraux. "Giant Magnetoresistance and Magneto-Thermopower in 3D Interconnected NixFe1−x/Cu Multilayered Nanowire Networks." Nanomaterials 11, no. 5 (April 27, 2021): 1133. http://dx.doi.org/10.3390/nano11051133.

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Анотація:

The versatility of the template-assisted electrodeposition technique to fabricate complex three-dimensional networks made of interconnected nanowires allows one to easily stack ferromagnetic and non-magnetic metallic layers along the nanowire axis. This leads to the fabrication of unique multilayered nanowire network films showing giant magnetoresistance effect in the current-perpendicular-to-plane configuration that can be reliably measured along the macroscopic in-plane direction of the films. Moreover, the system also enables reliable measurements of the analogous magneto-thermoelectric properties of the multilayered nanowire networks. Here, three-dimensional interconnected NixFe1−x/Cu multilayered nanowire networks (with 0.60≤x≤0.97) are fabricated and characterized, leading to large magnetoresistance and magneto-thermopower ratios up to 17% and −25% in Ni80Fe20/Cu, respectively. A strong contrast is observed between the amplitudes of magnetoresistance and magneto-thermoelectric effects depending on the Ni content of the NiFe alloys. In particular, for the highest Ni concentrations, a strong increase in the magneto-thermoelectric effect is observed, more than a factor of 7 larger than the magnetoresistive effect for Ni97Fe3/Cu multilayers. This sharp increase is mainly due to an increase in the spin-dependent Seebeck coefficient from −7 µV/K for the Ni60Fe40/Cu and Ni70Fe30/Cu nanowire arrays to −21 µV/K for the Ni97Fe3/Cu nanowire array. The enhancement of the magneto-thermoelectric effect for multilayered nanowire networks based on dilute Ni alloys is promising for obtaining a flexible magnetic switch for thermoelectric generation for potential applications in heat management or logic devices using thermal energy.

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3

Yang, Shan, Ru Xiao, Tongwei Zhang, Yuan Li, Benhe Zhong, Zhenguo Wu, and Xiaodong Guo. "Cu nanowires modified with carbon-rich conjugated framework PTEB for stabilizing lithium metal anodes." Chemical Communications 57, no. 99 (2021): 13606–9. http://dx.doi.org/10.1039/d1cc04822h.

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Анотація:

The carbon-rich conjugated framework PTEB is employed to modify Cu nanowire arrays for stabilizing Li anodes. A high CE (over 99%) and long lifespan (over 800 h) are achieved. The rich acetylene bonds serve as lithiophilic sites and 3D nanowire array structure promotes uniform Li+ flux.

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4

Patella, Bernardo, Carmelo Sunseri, and Rosalinda Inguanta. "Nanostructured Based Electrochemical Sensors." Journal of Nanoscience and Nanotechnology 19, no. 6 (June 1, 2019): 3459–70. http://dx.doi.org/10.1166/jnn.2019.16110.

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In this work, we present some results concerning the electrochemical behavior of nanostructured-based electrochemical sensors. In particular, the attention has been focused on Pd and Cu nanowires for detection of hydrogen peroxide and NiO thin film or Ni@NiO core–shell nanowires for detection of mercury ions. Ordered array of Pd and Cu nanowires was obtained through displacement deposition reaction in a commercial polycarbonate membrane acting as a template. The method leads to stable nanostructured electrodes of Pd and Cu with high surface area. For the detection of mercury ions, we have fabricated a Ni/NiO electrochemical sensor, obtained by mild thermal oxidation of Ni-foil. Some results on Ni@NiO core–shell nanowires were also reported. The effect of oxidation time and temperature was studied in order to compare performances of the Ni@NiO nanowire array with those of NiO thin film. All samples were characterized by XRD, SEM and EDS analysis. Electrochemical tests have been conducted in order to characterize specific electrode performance such as sensibility, selectivity, and accuracy. Highly satisfying results have been obtained.

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5

Meng, Fan-Lu, Hai-Xia Zhong, Qi Zhang, Kai-Hua Liu, Jun-Min Yan, and Qing Jiang. "Integrated Cu3N porous nanowire array electrode for high-performance supercapacitors." Journal of Materials Chemistry A 5, no. 36 (2017): 18972–76. http://dx.doi.org/10.1039/c7ta05439d.

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6

da Câmara Santa Clara Gomes, Tristan, Nicolas Marchal, Flavio Abreu Araujo, and Luc Piraux. "Flexible thermoelectric films based on interconnected magnetic nanowire networks." Journal of Physics D: Applied Physics 55, no. 22 (February 3, 2022): 223001. http://dx.doi.org/10.1088/1361-6463/ac4d47.

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Abstract Recently, there has been increasing interest in the fabrication of flexible thermoelectric devices capable of cooling or recovering waste heat from hot surfaces with complex geometries. This paper reviews recent developments on three-dimensional networks of interconnected ferromagnetic nanowires, which offer new perspectives for the fabrication of flexible thermoelectric modules. The nanowire arrays are fabricated by direct electrodeposition into the crossed nanopores of polymeric templates. This low-cost, easy and reliable method allows control over the geometry, composition and morphology of the nanowire array. Here we report measured thermoelectric characteristics as a function of temperature and magnetic field of nanowire networks formed from pure metals (Co, Fe, Ni), alloys (NiCo, NiFe and NiCr) and FM/Cu multilayers (with FM = Co, Co50Ni50 and Ni80Fe20). Homogeneous nanowire arrays have high thermoelectric power factors, almost as high as their bulk constituents, and allow for positive and negative Seebeck coefficient values. These high thermoelectric power factors are essentially maintained in multilayer nanowires which also exhibit high magnetic modulability of electrical resistivity and Seebeck coefficient. This has been exploited in newly designed flexible thermoelectric switches that allow switching from an ‘off’ state with zero thermoelectric output voltage to an ‘on’ state that can be easily measured by applying or removing a magnetic field. Overall, these results are a first step towards the development of flexible thermoelectric modules that use waste heat to power thermally activated sensors and logic devices.

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7

Guo, Li-Jun Wan, Chuan-Feng Zhu, De-Liang Yang, Dong-Min Chen, and Chun-Li Bai. "Ordered Ni−Cu Nanowire Array with Enhanced Coercivity." Chemistry of Materials 15, no. 3 (February 2003): 664–67. http://dx.doi.org/10.1021/cm0208962.

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8

Li, Ruizhi, Zhijun Lin, Xin Ba, Yuanyuan Li, Ruimin Ding, and Jinping Liu. "Integrated copper–nickel oxide mesoporous nanowire arrays for high energy density aqueous asymmetric supercapacitors." Nanoscale Horizons 1, no. 2 (2016): 150–55. http://dx.doi.org/10.1039/c5nh00100e.

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An integrated (Cu,Ni)O mesoporous nanowire array that delivers a high specific capacitance has been used to construct high-performance aqueous asymmetric supercapacitors of (Cu,Ni)O₍₊₎//AC₍₋₎.

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9

Dou, Wen Li, Wen Xu, Shao Hui Xu, Guang Tao Fei, and Yi Ming Xiao. "Near-Infrared Reflection Spectra of Copper Nanowire Array Structures." Advanced Materials Research 1118 (July 2015): 125–28. http://dx.doi.org/10.4028/www.scientific.net/amr.1118.125.

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We present a detailed study on near-infrared (NIR) reflection spectra of Cu nanowire arrays (NWAs) which are embedded in porous anodic alumina oxide templates and with pore diameters from 35 nm to 80 nm. We find that the NIR reflection of these samples is out of the frequency regime for surface-plasmon resonance induced by intra-and inter-band excitations. However, the intensity of the NIR reflection of Cu NWAs depends strongly on sample parameters and temperature. The measurements are carried out at temperatures setting to be 4 K, 77 K, 200 K, and at room temperature. The optical response of the Cu NWAs in NIR bandwidth is attributed to localized surface-plasmon oscillations and the NIR reflectance increases with temperature up to room-temperature. The physical mechanisms behind these interesting findings are discussed.

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10

Ma, Ming, Kristina Djanashvili, and Wilson A. Smith. "Selective electrochemical reduction of CO2to CO on CuO-derived Cu nanowires." Physical Chemistry Chemical Physics 17, no. 32 (2015): 20861–67. http://dx.doi.org/10.1039/c5cp03559g.

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11

Dubale, Amare Aregahegn, Wei-Nien Su, Andebet Gedamu Tamirat, Chun-Jern Pan, Belete Asefa Aragaw, Hong-Ming Chen, Ching-Hsiang Chen, and Bing-Joe Hwang. "The synergetic effect of graphene on Cu2O nanowire arrays as a highly efficient hydrogen evolution photocathode in water splitting." J. Mater. Chem. A 2, no. 43 (2014): 18383–97. http://dx.doi.org/10.1039/c4ta03464c.

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12

Wu, Chun-Yan, Zhi-Qiang Pan, You-Yi Wang, Cai-Wang Ge, Yong-Qiang Yu, Ji-Yu Xu, Li Wang, and Lin-Bao Luo. "Core–shell silicon nanowire array–Cu nanofilm Schottky junction for a sensitive self-powered near-infrared photodetector." Journal of Materials Chemistry C 4, no. 46 (2016): 10804–11. http://dx.doi.org/10.1039/c6tc03856e.

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13

Suryavanshi, Abhijit P., and Min-Feng Yu. "Probe-based electrochemical fabrication of freestanding Cu nanowire array." Applied Physics Letters 88, no. 8 (February 20, 2006): 083103. http://dx.doi.org/10.1063/1.2177538.

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14

Qi, Hua, Evan R. Glaser, Josh D. Caldwell, and S. M. Prokes. "Growth of Vertically Aligned ZnO Nanowire Arrays Using Bilayered Metal Catalysts." Journal of Nanomaterials 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/260687.

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Анотація:

Vertically aligned, high-density ZnO nanowires (NWs) were grown for the first time on c-plane sapphire using binary alloys of Ni/Au or Cu/Au as the catalyst. The growth was performed under argon gas flow and involved the vapor-liquid-solid (VLS) growth process. We have investigated various ratios of catalyst components for the NWs growth and results indicate that very thin adhesion layers of Ni or Cu deposited prior to the Au layer are not deleterious to the ZnO NW array growth. Significant improvement of the Au adhesion on the substrate was noted, opening the potential for direct catalyst patterning of Au and subsequent NW array growth. Additionally, we found that an increase of in thickness of the Cu adhesion layer results in the simultaneous growth of NWs and nanoplates (NPs), indicating that in this case the growth involves both the VLS and vapor-solid (VS) growth mechanisms. Energy dispersive X-ray spectroscopy (EDX) and surface-enhanced Raman scattering (SERS) studies were also performed to characterize the resulting ZnO NW arrays, indicating that the NWs grown using a thin adhesion layer of Ni or Cu under the Au show comparable SERS enhancement to those of the pure Au-catalyzed NWs.

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15

Ye, Lin, and Zhenhai Wen. "Self-supported three-dimensional Cu/Cu2O–CuO/rGO nanowire array electrodes for an efficient hydrogen evolution reaction." Chemical Communications 54, no. 49 (2018): 6388–91. http://dx.doi.org/10.1039/c8cc02510j.

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16

Zhu, Xiaojuan, Xifeng Shi, Abdullah M. Asiri, Yonglan Luo, and Xuping Sun. "Efficient oxygen evolution electrocatalyzed by a Cu nanoparticle-embedded N-doped carbon nanowire array." Inorganic Chemistry Frontiers 5, no. 5 (2018): 1188–92. http://dx.doi.org/10.1039/c8qi00119g.

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A Cu nanoparticle-embedded N-doped carbon nanowire array on copper foam (Cu–N–C NA/CF) shows high catalytic activity, needing an overpotential of 314 mV to drive a geometrical current density of 20 mA cm⁻² in 1.0 M KOH.

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17

Guo, Huanmei, Li Liu, Qian Wu, Limin Li, and Xishi Tai. "Cu3N nanowire array as a high-efficiency and durable electrocatalyst for oxygen evolution reaction." Dalton Transactions 48, no. 16 (2019): 5131–34. http://dx.doi.org/10.1039/c9dt00362b.

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A self-supported Cu₃N nanowire array on copper foam (Cu₃N NA/CF) exhibits marvellous OER activity with the need of an overpotential of only 298 mV at a current density of 20 mA cm⁻² in 1.0 M KOH.

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18

Xie, Ning, Dong-Dong Ma, Yu-Lin Wu, Xin-Tao Wu, and Qi-Long Zhu. "Hierarchical Cu2S hollow nanowire arrays for highly efficient hydrogen evolution reaction." Sustainable Energy & Fuels 5, no. 10 (2021): 2633–39. http://dx.doi.org/10.1039/d1se00453k.

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Анотація:

A self-supported three-dimensional unique hierarchical Cu₂S hollow nanowire array nanostructure with excellent activity for the hydrogen-evolution reaction was synthesized in a facile and economical way.

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19

Jiang, Zhi-Qiang, Yu-Feng Li, Xue-Jun Zhu, Jin Lu, Tian Wen, and Lei Zhang. "Ni(ii)-doped anionic metal–organic framework nanowire arrays for enhancing the oxygen evolution reaction." Chemical Communications 55, no. 28 (2019): 4023–26. http://dx.doi.org/10.1039/c9cc00009g.

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Анотація:

An anionic metal–organic framework nanowire array not only directly grown on Cu foam but also successfully captured Ni²⁺ at ultra-small particles level, the resulting hybrid materials showed excellent electrocatalytic OER activities.

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20

Cho, Ji Ung, Qun Xian Liu, Ji Hyun Min, Seung Pil Ko, and Young Keun Kim. "Synthesis and magnetic anisotropy of multilayered Co/Cu nanowire array." Journal of Magnetism and Magnetic Materials 304, no. 1 (September 2006): e213-e215. http://dx.doi.org/10.1016/j.jmmm.2006.02.034.

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21

Qiao, Zhen, Arben Kojtari, Jacob Babinec, and Hai-Feng Ji. "Synthesis of A Silver Nanowire Array on Cu-BTC MOF Micropillars." Sci 1, no. 1 (November 30, 2018): 4. http://dx.doi.org/10.3390/sci1010004.

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An array of Ag nanowires has been prepared from a facile, templated approach on Cu(BTC) (1,3,5-benzenetricarboxylic acid) metal organic framework (MOF) micropillars. The Ag-deposited scaffolding material may be used to prepare electronic or optoelectronic devices for various applications.

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22

Qiao, Zhen, Arben Kojtari, Jacob Babinec, and Hai-Feng Ji. "Synthesis of A Silver Nanowire Array on Cu-BTC MOF Micropillars." Sci 1, no. 1 (November 30, 2018): 4. http://dx.doi.org/10.3390/sci1010004.v1.

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Анотація:

An array of Ag nanowires has been prepared from a facile, templated approach on Cu(BTC) (1,3,5-benzenetricarboxylic acid) metal organic framework (MOF) micropillars. The Ag-deposited scaffolding material may be used to prepare electronic or optoelectronic devices for various applications.

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23

Ren, Xiang, Xuqiang Ji, Yicheng Wei, Dan Wu, Yong Zhang, Min Ma, Zhiang Liu, Abdullah M. Asiri, Qin Wei, and Xuping Sun. "In situ electrochemical development of copper oxide nanocatalysts within a TCNQ nanowire array: a highly conductive electrocatalyst for the oxygen evolution reaction." Chemical Communications 54, no. 12 (2018): 1425–28. http://dx.doi.org/10.1039/c7cc08748a.

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24

Fan, Hsin-Hsin, Wei-Lun Weng, Chi-Young Lee, and Chien-Neng Liao. "Electrochemical Cycling-Induced Spiky CuxO/Cu Nanowire Array for Glucose Sensing." ACS Omega 4, no. 7 (July 16, 2019): 12222–29. http://dx.doi.org/10.1021/acsomega.9b01730.

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25

Panaitescu, Ana-Maria, Iulia Antohe, Claudiu Locovei, Sorina Iftimie, Ştefan Antohe, Luc Piraux, Mirela Suchea, and Vlad-Andrei Antohe. "Effect of the Cadmium Telluride Deposition Method on the Covering Degree of Electrodes Based on Copper Nanowire Arrays." Applied Sciences 12, no. 15 (August 3, 2022): 7808. http://dx.doi.org/10.3390/app12157808.

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In this work, we report the preparation of nanostructured electrodes based on dense arrays of vertically-aligned copper (Cu) nanowires (NWs) to be subsequently covered by cadmium telluride (CdTe) thin films, with great potential to be used within “substrate”-type photovoltaic cells based on AII-BVI heterojunctions. In particular, the multi-step preparation protocol presented here involves an electrochemical synthesis procedure within a supported anodic aluminum oxide (AAO) nanoporous template for first generating a homogeneous array of vertically-aligned Cu NWs, which are then further embedded within a compact CdTe thin film. In a second stage, we tested three deposition methods (vacuum thermal evaporation, VTE; radio-frequency magnetron sputtering, RF-MS; and electrochemical deposition, ECD) for use in obtaining CdTe layers potentially able to consistently penetrate the previously prepared Cu NWs array. A comparative analysis was performed to critically evaluate the morphological, optical, and structural properties of the deposited CdTe films. The presented results demonstrate that under optimized processing conditions, the ECD approach could potentially allow the cost-effective fabrication of absorber layer/collecting electrode CdTe/Cu nanostructured interfaces that could improve charge collection mechanisms, which in turn could allow the fabrication of more efficient solar cells based on AII-BVI semiconducting compounds.

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26

Chiriac, Horia, Oana-Georgiana Dragos, George Stoian, Marian Grigoras, and Nicoleta Lupu. "Contact and Magnetoresistance Measurement of a Single NiFe/Cu Multilayer Nanowire Within a Template Nanowire Array." IEEE Transactions on Magnetics 50, no. 4 (April 2014): 1–4. http://dx.doi.org/10.1109/tmag.2013.2290534.

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27

Cui, Yanbin, Yang Ju, Peng Wang, Baiyao Xu, Naoki Kojima, Kazuma Ichioka, and Atsushi Hosoi. "Carbon nanotube–Cu/parylene nanowire array electrical fasteners with high adhesion strength." Applied Physics Express 7, no. 1 (December 27, 2013): 015102. http://dx.doi.org/10.7567/apex.7.015102.

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28

Niu Gao, 牛高, 谭秀兰 Tan Xiulan, 韩尚君 Han Shangjun, 李恺 Li Kai, 李佳 Li Jia, 黄文忠 Huang Wenzhong, and 罗江山 Luo Jiangshan. "Structure and performance of Cu nanowire array target for intense radiation source." High Power Laser and Particle Beams 23, no. 3 (2011): 681–84. http://dx.doi.org/10.3788/hplpb20112303.0681.

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29

Siebert, Leonard, Oleg Lupan, Mattia Mirabelli, Nicolai Ababii, Maik-Ivo Terasa, Sören Kaps, Vasilii Cretu, Alexander Vahl, Franz Faupel, and Rainer Adelung. "3D-Printed Chemiresistive Sensor Array on Nanowire CuO/Cu2O/Cu Heterojunction Nets." ACS Applied Materials & Interfaces 11, no. 28 (June 19, 2019): 25508–15. http://dx.doi.org/10.1021/acsami.9b04385.

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30

Du, Huitong, Xiaoping Zhang, Qingqing Tan, Rongmei Kong, and Fengli Qu. "A Cu3P–CoP hybrid nanowire array: a superior electrocatalyst for acidic hydrogen evolution reactions." Chemical Communications 53, no. 88 (2017): 12012–15. http://dx.doi.org/10.1039/c7cc07802a.

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31

Mei, Y. F., G. G. Siu, Y. Yang, Ricky K. Y. Fu, T. F. Hung, Paul K. Chu, and X. L. Wu. "Cu oxide nanowire array grown on Si-based SiO2 nanoscale islands via nanochannels." Acta Materialia 52, no. 17 (October 2004): 5051–55. http://dx.doi.org/10.1016/j.actamat.2004.07.010.

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32

Wang, Jin, Yinhui Dai, Ying Yu, Mingxiang Zhou, Yunqing Lu, and Xinhui Zhou. "Alignment controllable synthesis of MOF films: From Cu(OH)2 nanowire array to highly oriented Cu-MOF film." Journal of Solid State Chemistry 306 (February 2022): 122800. http://dx.doi.org/10.1016/j.jssc.2021.122800.

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33

IWASAKI, Yuka, Yang JU, Yasuyuki MORITA, and Atsushi HOSOI. "G030084 Fabrication of high density Cu nanowire array by template method and its evaluation." Proceedings of Mechanical Engineering Congress, Japan 2011 (2011): _G030084–1—_G030084–3. http://dx.doi.org/10.1299/jsmemecj.2011._g030084-1.

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34

Liang, Jie, Biao Deng, Qin Liu, Guilai Wen, Qian Liu, Tingshuai Li, Yonglan Luo, et al. "High-efficiency electrochemical nitrite reduction to ammonium using a Cu3P nanowire array under ambient conditions." Green Chemistry 23, no. 15 (2021): 5487–93. http://dx.doi.org/10.1039/d1gc01614h.

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Анотація:

Cu₃P enables ambient electrosynthesis of ammonium via selective NO₂⁻ reduction, achieving a yield rate of 1626.6 ± 36.1 μg h⁻¹ cm⁻² and a Faradaic efficiency of 91.2 ± 2.5%. The catalytic mechanism is investigated by theoretical calculations.

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35

Jiang, Han, Stuart Robertson, Shuibao Liang, Zhaoxia Zhou, Liguo Zhao, and Changqing Liu. "Rapid formation of intermetallic joint using Cu-Sn nanocomposite interlayer based on patterned copper nanowire array." Materials Letters 307 (January 2022): 131074. http://dx.doi.org/10.1016/j.matlet.2021.131074.

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36

Shen, Haoting, Kaibo Zheng, Jinglei Li, Dalin Sun, and Guorong Chen. "Fabrication and electrical properties of a Cu–tetracyanoquinodimethane nanowire array in a porous anodic alumina template." Nanotechnology 19, no. 1 (November 29, 2007): 015305. http://dx.doi.org/10.1088/0957-4484/19/01/015305.

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37

Hu, Hanjun, Yutian Wang, Nian Du, Yufan Sun, Yang Tang, Qing Hu, Pingyu Wan, Liming Dai, Adrian C. Fisher, and Xiao Jin Yang. "Thermal‐Treatment‐Induced Cu−Sn Core/Shell Nanowire Array Catalysts for Highly Efficient CO 2 Electroreduction." ChemElectroChem 5, no. 24 (October 23, 2018): 3854–58. http://dx.doi.org/10.1002/celc.201801267.

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38

Qu, Jun, Huaqing Li, John J. Henry, Surendra K. Martha, Nancy J. Dudney, Hanbing Xu, Miaofang Chi, et al. "Self-aligned Cu–Si core–shell nanowire array as a high-performance anode for Li-ion batteries." Journal of Power Sources 198 (January 2012): 312–17. http://dx.doi.org/10.1016/j.jpowsour.2011.10.004.

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Ding, Ruimin, Jinping Liu, Jian Jiang, JianHui Zhu, and Xintang Huang. "Mixed Ni–Cu-oxide nanowire array on conductive substrate and its application as enzyme-free glucose sensor." Analytical Methods 4, no. 12 (2012): 4003. http://dx.doi.org/10.1039/c2ay25792k.

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40

Chen, Cai Feng, Hao Wang, Zhi Dan Ding, and An Dong Wang. "Fabrication of Copper Nanowire Arrays by Electrolytic Deposition." Journal of Nano Research 32 (May 2015): 25–31. http://dx.doi.org/10.4028/www.scientific.net/jnanor.32.25.

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Анотація:

Highly ordered copper nanowire arrays were prepared by electrolytic deposition using porous anodic aluminum oxide (AAO) as template. The technique of removing the barrier layer of the AAO template by the pore widening procedure was investigated. The quality of the Au conducting layers sputtered at the bottom side of the AAO template was also studied. The direct current (DC) electrodeposition of copper nanowire arrays was performed efficiently above the Au layer inside the pores. The morphology of the copper nanowires was characterized by scanning electronic microscopy (SEM) and the composition of Cu nanowires was confirmed by energy dispersive X-Ray spectroscopy (EDS). The results showed that the best condition was found to be in phosphoric acid (6%wt) for 10 min to remove the barrier layer completely. Au layer was uniform and dense after sputtering for four times. Copper nanowire arrays were successfully prepared by three-electrode and two-electrode cell electro-deposition, but the nanowire arrays were more ordered by using three-electrode cell and the length of nanowires was more uniform. The diameter of a single Cu nanowire is less than 100 nm with the length up to around 10 μm, and the nanowires are well arranged in arrays.

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41

Zhang, Wei, Xin Min Huang, Yong Jiu Zhao, Yu Cheng Wu, Guang Qing Xu, Kang Xu, Peng Li, and Peng Jie Zhang. "Direct Electrodeposition of Highly Ordered Au-Cu Alloy Nanowire Arrays." Advanced Materials Research 652-654 (January 2013): 155–58. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.155.

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Au-Cu alloy nanowires with diameters 50-100nm and lengths of 500nm have been obtained by direct electrochemical deposition.The fabrication of highly ordered Au-Cu alloy nanowires arrays was used as a Anodic aluminum oxide (AAO) template. This template was fabricated with two-step anodizing method. In this paper, we report electrochemical deposition fabrication of Au–Cu alloy nanowire arrays by AAO. Use SEM, TEM can detect morphology of Au-Cu alloy nanowires, And use EDS to analyse the elements.The electrocatalytic activities of the Au-Cu alloy nanowires for the oxidation of ethanol in acidic medium were investigated by cyclic voltammetry.

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42

Wang, Yuanxing, Cailing Niu, and Yachuan Zhu. "Copper–Silver Bimetallic Nanowire Arrays for Electrochemical Reduction of Carbon Dioxide." Nanomaterials 9, no. 2 (January 30, 2019): 173. http://dx.doi.org/10.3390/nano9020173.

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The electrochemical conversion of carbon dioxide (CO2) into gaseous or liquid fuels has the potential to store renewable energies and reduce carbon emissions. Here, we report a three-step synthesis using Cu–Ag bimetallic nanowire arrays as catalysts for electrochemical reduction of CO2. CuO/Cu2O nanowires were first grown by thermal oxidation of copper mesh in ambient air and then reduced by annealing in the presence of hydrogen to form Cu nanowires. Cu–Ag bimetallic nanowires were then produced via galvanic replacement between Cu nanowires and the Ag+ precursor. The Cu–Ag nanowires showed enhanced catalytic performance over Cu nanowires for electrochemical reduction of CO2, which could be ascribed to the incorporation of Ag into Cu nanowires leading to suppression of hydrogen evolution. Our work provides a method for tuning the selectivity of copper nanocatalysts for CO2 reduction by controlling their composition.

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Feng, Yufa, Fei Lv, Huize Wang, Xiaodong Chen, Hang Li, Zhiyu Chen, Guangyu Lin, Jinyun Liao, Mingyang He, and Quanbing Liu. "Ni0.25Co0.75O nanowire array supported on Cu@CuO foam, an inexpensive and durable catalyst for hydrogen generation from ammonia borane." Catalysis Communications 159 (November 2021): 106343. http://dx.doi.org/10.1016/j.catcom.2021.106343.

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44

Xu, Panpan, Ke Ye, Mengmeng Du, Jijun Liu, Kui Cheng, Jinling Yin, Guiling Wang, and Dianxue Cao. "One-step synthesis of copper compounds on copper foil and their supercapacitive performance." RSC Advances 5, no. 46 (2015): 36656–64. http://dx.doi.org/10.1039/c5ra04889c.

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Анотація:

Nanowire-like Cu(OH)₂ arrays, microflower-like CuO standing on Cu(OH)₂ nanowires and hierarchical CuO microflowers are directly synthesized via a simple and cost-effective liquid–solid reaction.

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45

ZHANG, Yiqi, Yuhki TOKU, Yasuyuki MORITA, and Yang JU. "Fabrication of Cu₂O Nanowire Array by Thermal Oxidation and Reduction Process used for Solar Water Splitting." Proceedings of the Materials and Mechanics Conference 2018 (2018): GS0302. http://dx.doi.org/10.1299/jsmemm.2018.gs0302.

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46

Wang, Jianmei, Xiao Ma, Wenrong Yang, Xuping Sun, and Jingquan Liu. "Self-supported Cu(OH)2@Co2CO3(OH)2 core–shell nanowire array as a robust catalyst for ammonia-borane hydrolysis." Nanotechnology 28, no. 4 (December 21, 2016): 045606. http://dx.doi.org/10.1088/1361-6528/28/4/045606.

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47

Kamimura, Himeyo, Masamitsu Hayashida, and Takeshi Ohgai. "CPP-GMR Performance of Electrochemically Synthesized Co/Cu Multilayered Nanowire Arrays with Extremely Large Aspect Ratio." Nanomaterials 10, no. 1 (December 18, 2019): 5. http://dx.doi.org/10.3390/nano10010005.

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Анотація:

Anodized aluminum oxide (AAO) films, which have numerous nanochannels ca. 75 nm in diameter, D and ca. 70 µm in length, L (ca. 933 in aspect ratio, L/D), were used as a template material for growing Co/Cu multilayered nanowire arrays. The multilayered nanowires with alternating Cu layer and Co layers were synthesized by using an electrochemical pulsed-potential deposition technique. The thickness of the Cu layer was adjusted from ca. 2 to 4 nm while that of the Co layer was regulated from ca. 13 to 51 nm by controlling the pulsed potential parameters. To get a Co/Cu multilayered nanowire in an electrochemical in-situ contact with a sputter-deposited Au thin layer, the pulsed potential deposition was continued up to ca. 5000 cycles until the nanowire reached out toward the surface of AAO template. Current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) effect reached up to ca. 23.5% at room temperature in Co/Cu multilayered nanowires with ca. 3500 Co/Cu bilayers (Cu: 1.4 nm and Co: 18.8 nm). When decreasing the thickness of Co layer, the CPP-GMR value increased due to the Valet–Fert model in the long spin diffusion limit.

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48

Ren, Shan, Li Qiang Li, Zhu Feng Liu, Ming Li, and Lan Hong. "The Light Absorption Properties of Cu₂S Nanowire Arrays." Advanced Materials Research 528 (June 2012): 272–76. http://dx.doi.org/10.4028/www.scientific.net/amr.528.272.

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Анотація:

Cu2S nanowire arrays with different morphologies were prepared by solid-gas reaction between Cu foil and mixture gas of H2S and O2. Their microstructures were observed with XRD, TEM, and the optical properties were measured by DRS, PL and Raman. The results showed that the nanowire were Cu2S single crystal with a thin layer CuxO (x=1, 2) over the surface. The optical properties of the Cu2S nanowire arrays are related to the diameter, length, and distribution density of nanowire arrays. The thinner is the nanowire’s diameter; the bigger is the absorption of the visible light, and the absorbance begun to descend within infrared band. The absorbance of nanowire arrays with bigger diameter to the infrared light was stronger than that with thinner diameter. The photoluminescence spectrum (PL) indicated that band gaps of Cu2S nanowire arrays also changed simultaneously with the nanowire arrays’ structure parameters. The research demonstrated the Cu2S nanowire arrays’ potential applications in the photovoltaic cell and solar-heat harvesting area.

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Yao, J. L., G. P. Pan, K. H. Xue, D. Y. Wu, B. Ren, D. M. Sun, J. Tang, X. Xu, and Z. Q. Tian. "A complementary study of surface-enhanced Raman scattering and metal nanorod arrays." Pure and Applied Chemistry 72, no. 1-2 (January 1, 2000): 221–28. http://dx.doi.org/10.1351/pac200072010221.

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The two-dimensional arrays of various metal nanowires with diameters ranging from 15 to 70 nm have been fabricated by electrodepositing metals of Cu, Ag, Au, Ni, and Co into the nanoholes of the anodic aluminum oxide (AAO) films, followed by partial removal of the film. The strong surface-enhanced Raman scattering (SERS) effects were observed from the metal nanowire arrays including Ni, Co metals that were normally considered to be non-SERS active substrates. It has been shown that metal nanowire arrays can serve as very good SERS active substrates, especially for transition metals. The SERS intensity of the probe molecule adsorbed at the nanowires depends critically on the length of the nanowires explored at the surface. And the band frequency is very sensitive to the diameter, which reflects the change in the electronic property of metal nanowires. Applying this probe molecule strategy, SERS could develop into a diagnostic tool of metal nanowires (nanorods).

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Sun, Xiu Yu, and Fa Qiang Xu. "Controlling Aspect Ratio of Copper Group Nanowire Arrays by Electrochemical Deposition in the Nanopores of AAO." Advanced Materials Research 335-336 (September 2011): 429–32. http://dx.doi.org/10.4028/www.scientific.net/amr.335-336.429.

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Анотація:

Highly ordered Cu, Ag and Au nanowire arrays with high aspect ratio and highly dense self-supporting nanowire patterns of copper group were successfully prepared using cyclic voltammetry with the assistance of anodic aluminum oxide (AAO) template. The X-ray diffraction (XRD) patterns of the metal nanowries were indexed to the face-centered cubic structure. The field emission scanning electron microscope (FE-SEM) results demonstrated that the length of nanowire could be controlled by changing the electrodepositon conditions. The aspect ratio of nanowire arrays can be tuned.

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