Copper Incorporated Molybdenum Trioxide Nanosheet Realizing High-Efficient Performance for Hydrogen Production
The development of highly active non-precious metal electrocatalysts is crucial for advancing the practical application of hydrogen evolution reaction (HER). Doping engineering is one of the important strategies to optimize the electrocatalytic activity of electrocatalysts. Herein, we put forward a...
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MDPI AG
2022-08-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/8/895 |
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| author | Pengzuo Chen Weixia Huang Kaixun Li Dongmei Feng Yun Tong |
| author_facet | Pengzuo Chen Weixia Huang Kaixun Li Dongmei Feng Yun Tong |
| author_sort | Pengzuo Chen |
| collection | DOAJ |
| description | The development of highly active non-precious metal electrocatalysts is crucial for advancing the practical application of hydrogen evolution reaction (HER). Doping engineering is one of the important strategies to optimize the electrocatalytic activity of electrocatalysts. Herein, we put forward a simple strategy to optimize the catalytic activity of MoO<sub>3</sub> material by incorporating the Cu atoms into the interlayer (denoted as Cu-MoO<sub>3</sub>). The prepared Cu-MoO<sub>3</sub> nanosheet has a larger surface area, higher conductivity, and strong electron interactions, which contributes to optimal reaction kinetics of the HER process. As a result, the Cu-MoO<sub>3</sub> nanosheet only needs a small overpotential of 106 mV to reach the geometric current density of 10 mA cm<sup>−2</sup>. In addition, it also delivers a low Tafel slope of 83 mV dec<sup>−1</sup>, as well as high stability and Faraday efficiency. Notably, when using the Cu-MoO<sub>3</sub> as a cathode to construct the water electrolyzer, it only needs 1.55 V to reach the 10 mA cm<sup>−2</sup>, indicating its promising application in hydrogen generation. This work provides a novel type of design strategy for a highly active electrocatalyst for an energy conversion system. |
| first_indexed | 2024-03-09T09:59:14Z |
| format | Article |
| id | doaj.art-4fc9347534ce4bebb363e80fbd6c4345 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T09:59:14Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-4fc9347534ce4bebb363e80fbd6c43452023-12-01T23:33:00ZengMDPI AGCatalysts2073-43442022-08-0112889510.3390/catal12080895Copper Incorporated Molybdenum Trioxide Nanosheet Realizing High-Efficient Performance for Hydrogen ProductionPengzuo Chen0Weixia Huang1Kaixun Li2Dongmei Feng3Yun Tong4Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaThe development of highly active non-precious metal electrocatalysts is crucial for advancing the practical application of hydrogen evolution reaction (HER). Doping engineering is one of the important strategies to optimize the electrocatalytic activity of electrocatalysts. Herein, we put forward a simple strategy to optimize the catalytic activity of MoO<sub>3</sub> material by incorporating the Cu atoms into the interlayer (denoted as Cu-MoO<sub>3</sub>). The prepared Cu-MoO<sub>3</sub> nanosheet has a larger surface area, higher conductivity, and strong electron interactions, which contributes to optimal reaction kinetics of the HER process. As a result, the Cu-MoO<sub>3</sub> nanosheet only needs a small overpotential of 106 mV to reach the geometric current density of 10 mA cm<sup>−2</sup>. In addition, it also delivers a low Tafel slope of 83 mV dec<sup>−1</sup>, as well as high stability and Faraday efficiency. Notably, when using the Cu-MoO<sub>3</sub> as a cathode to construct the water electrolyzer, it only needs 1.55 V to reach the 10 mA cm<sup>−2</sup>, indicating its promising application in hydrogen generation. This work provides a novel type of design strategy for a highly active electrocatalyst for an energy conversion system.https://www.mdpi.com/2073-4344/12/8/895MoO<sub>3</sub> nanosheetCu dopingelectronic regulationhydrogen productionwater electrolyzer |
| spellingShingle | Pengzuo Chen Weixia Huang Kaixun Li Dongmei Feng Yun Tong Copper Incorporated Molybdenum Trioxide Nanosheet Realizing High-Efficient Performance for Hydrogen Production Catalysts MoO<sub>3</sub> nanosheet Cu doping electronic regulation hydrogen production water electrolyzer |
| title | Copper Incorporated Molybdenum Trioxide Nanosheet Realizing High-Efficient Performance for Hydrogen Production |
| title_full | Copper Incorporated Molybdenum Trioxide Nanosheet Realizing High-Efficient Performance for Hydrogen Production |
| title_fullStr | Copper Incorporated Molybdenum Trioxide Nanosheet Realizing High-Efficient Performance for Hydrogen Production |
| title_full_unstemmed | Copper Incorporated Molybdenum Trioxide Nanosheet Realizing High-Efficient Performance for Hydrogen Production |
| title_short | Copper Incorporated Molybdenum Trioxide Nanosheet Realizing High-Efficient Performance for Hydrogen Production |
| title_sort | copper incorporated molybdenum trioxide nanosheet realizing high efficient performance for hydrogen production |
| topic | MoO<sub>3</sub> nanosheet Cu doping electronic regulation hydrogen production water electrolyzer |
| url | https://www.mdpi.com/2073-4344/12/8/895 |
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