Enhanced Electrocatalysis for Energy-Efficient Hydrogen Production over CoP Catalyst with Nonelectroactive Zn as a Promoter
文献类型：期刊论文
| 作者 | Liu, Tingting; Liu, Danni; Qu, Fengli; Wang, Dengxing; Zhang, Ling; Ge, Ruixiang; Hao, Shuai; Ma, Yongjun; Du, Gu; Asiri, Abdullah M. |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2017 |
| 卷号 | 7期号:15页码:1700020 |
| ISSN号 | 1614-6832 |
| 英文摘要 | As a non-toxic species, Zn fulfills a multitude of biological roles, but its promoting effect on electrocatalysis has been rarely explored. Herein, the theoretic predications and experimental investigations that non-electroactive Zn behaves as an effective promoter for CoP-catalyzed hydrogen evolution reaction (HER) in both acidic and alkaline media is reported. Density function theory calculations reveal that Zn doing leads to more thermal-neutral hydrogen adsorption free energy and thus enhanced HER activity for CoP catalyst. Electrochemical tests show that a Zn0.08Co0.92P nanowall array on titanium mesh (Zn0.08Co0.92P/TM) needs overpotentials of only 39 and 67 mV to drive a geometrical catalytic current of 10 mA cm(-2) in 0.5 m H2SO4 and 1.0 m KOH, respectively. This Zn0.08Co0.92P/TM is also superior in activity over CoP/TM for urea oxidation reaction (UOR), driving 115 mA cm(-2) at 0.6 V in 1.0 m KOH with 0.5 m urea. The high HER and UOR activity of this bifunctional electrode enables a Zn0.08Co0.92P/TM-based two-electrode electrolyzer for energy-saving hydrogen production, offering 10 mA cm(-2) at a low voltage of 1.38 V with strong long-term electrochemical stability. |
| 公开日期 | 2017-12-25 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/13687]  |
| 专题 | 2017专题 |
| 推荐引用方式 GB/T 7714 | Liu, Tingting,Liu, Danni,Qu, Fengli,et al. Enhanced Electrocatalysis for Energy-Efficient Hydrogen Production over CoP Catalyst with Nonelectroactive Zn as a Promoter[J]. ADVANCED ENERGY MATERIALS,2017,7(15):1700020. |
| APA | Liu, Tingting.,Liu, Danni.,Qu, Fengli.,Wang, Dengxing.,Zhang, Ling.,...&Sun, Xuping.(2017).Enhanced Electrocatalysis for Energy-Efficient Hydrogen Production over CoP Catalyst with Nonelectroactive Zn as a Promoter.ADVANCED ENERGY MATERIALS,7(15),1700020. |
| MLA | Liu, Tingting,et al."Enhanced Electrocatalysis for Energy-Efficient Hydrogen Production over CoP Catalyst with Nonelectroactive Zn as a Promoter".ADVANCED ENERGY MATERIALS 7.15(2017):1700020. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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