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| Preparation of Dendritic Copper Nanostructures and Their Characterization for Electroreduction | |
| Qiu, Ri2; Cha, Hyun Gil1; Noh, Hui Bog3,4; Shim, Yoon Bo3,4; Zhang, Xiao Li2; Qiao, Ru2; Zhang, Dun5; Il Kim, Yeong2; Pal, Umapada1; Kang, Young Soo1; Kang, YS, Sogang Univ, Dept Chem, Seoul 121742, South Korea | |
| 2009-09-10 | |
| 发表期刊 | JOURNAL OF PHYSICAL CHEMISTRY C
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| ISSN | 1932-7447 |
| 卷号 | 113期号:36页码:15891-15896 |
| 文章类型 | Article |
| 摘要 | Dendritic copper nanostructures of different morphologies were synthesized by a surfactant-free electrochemical method. Single crystal nature of the nanostructures was revealed from their X-ray diffraction and electron diffraction patterns. Mechanism of dendrite formation was discussed from thermodynamic aspects using the concept of supersaturation. Supersaturation of the copper metal reduced on the surface of the electrode was the crucial factor for the generation of different morphologies. Effects of applied potential, temperature, and the solution concentration on the supersaturation were studied. The NO(3)(-) and H(2)O(2) electroreduction ability of the dendritic materials was tested. Use of copper dendrite-modified electrode as NO(3)(-) sensor was demonstrated.; Dendritic copper nanostructures of different morphologies were synthesized by a surfactant-free electrochemical method. Single crystal nature of the nanostructures was revealed from their X-ray diffraction and electron diffraction patterns. Mechanism of dendrite formation was discussed from thermodynamic aspects using the concept of supersaturation. Supersaturation of the copper metal reduced on the surface of the electrode was the crucial factor for the generation of different morphologies. Effects of applied potential, temperature, and the solution concentration on the supersaturation were studied. The NO3- and H2O2 electroreduction ability of the dendritic materials was tested. Use of copper dendrite-modified electrode as NO3- sensor was demonstrated. |
| 关键词 | Modified Electrode Electrocatalytic Reduction Electrochemical Detection Hydrogen-peroxide Nitrate Deposition Mechanism Catalysis Nitrite Silver |
| 学科领域 | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| DOI | 10.1021/jp904222b |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000269654700018 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/1900 |
| 专题 | 海洋环境腐蚀与生物污损重点实验室 |
| 通讯作者 | Kang, YS, Sogang Univ, Dept Chem, Seoul 121742, South Korea |
| 作者单位 | 1.Sogang Univ, Dept Chem, Seoul 121742, South Korea 2.Pukyong Natl Univ, Dept Chem, Pusan 608737, South Korea 3.Pusan Natl Univ, Dept Chem, Pusan 609735, South Korea 4.Pusan Natl Univ, Ctr Innovat BioPhys Sensor Technol, Pusan 609735, South Korea 5.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Ri,Cha, Hyun Gil,Noh, Hui Bog,et al. Preparation of Dendritic Copper Nanostructures and Their Characterization for Electroreduction[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2009,113(36):15891-15896. |
| APA | Qiu, Ri.,Cha, Hyun Gil.,Noh, Hui Bog.,Shim, Yoon Bo.,Zhang, Xiao Li.,...&Kang, YS, Sogang Univ, Dept Chem, Seoul 121742, South Korea.(2009).Preparation of Dendritic Copper Nanostructures and Their Characterization for Electroreduction.JOURNAL OF PHYSICAL CHEMISTRY C,113(36),15891-15896. |
| MLA | Qiu, Ri,et al."Preparation of Dendritic Copper Nanostructures and Their Characterization for Electroreduction".JOURNAL OF PHYSICAL CHEMISTRY C 113.36(2009):15891-15896. |
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