Morphology-dependent electrocatalytic nitrogen reduction on Ag triangular nanoplates
| Autor: | Tong-An Bu, Wen-Yan Gao, Yu-Chen Hao, Li-Wei Chen, Zhejiaji Zhu, Zi-Long Yu, Nan Zhang, Xin Su, Anxiang Yin |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Morphology (linguistics) 010405 organic chemistry Potassium Inorganic chemistry Metals and Alloys chemistry.chemical_element General Chemistry Overpotential 010402 general chemistry 01 natural sciences Nitrogen Redox Catalysis 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Ammonia chemistry.chemical_compound chemistry Yield (chemistry) Materials Chemistry Ceramics and Composites Faraday efficiency |
| Zdroj: | Chemical Communications. 55:10705-10708 |
| ISSN: | 1364-548X 1359-7345 |
| Popis: | Electrocatalytic nitrogen reduction reactions (ENRR) can produce ammonia from nitrogen and water under ambient conditions. Here, we report the morphology-dependent electro-catalytic nitrogen reduction on Ag triangular nanoplates. Boosted by potassium cations, Ag triangular nanoplates with sharp edges exhibit a high faradaic efficiency of 25% with an ammonia yield of 58.5 mg gAg−1 h−1 at a low overpotential of −0.25 V vs. RHE. In comparison, rounded Ag nanoparticles mainly enclosed by {111} and {100} surfaces show a much smaller faradaic efficiency of 16% and ammonia yield of 38 mg gAg−1 h−1 at a larger overpotential (−0.35 V vs. RHE). |
| Databáze: | OpenAIRE |
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