Your browser doesn't support javascript.
loading
Electrical-Driven Directed-Evolution of Copper Nanowires Catalysts for Efficient Nitrate Reduction to Ammonia.
Luo, Wenjie; Guo, Zeyi; Ye, Ling; Wu, Shilu; Jiang, Yingyang; Xu, Peng; Wang, Hui; Qian, Jinjie; Zhou, Xuemei; Tang, Hao; Ge, Yongjie; Guan, Jia; Yang, Zhi; Nie, Huagui.
Afiliación
  • Luo W; Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Guo Z; College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Ye L; Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Wu S; College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Jiang Y; Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Xu P; College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Wang H; Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Qian J; College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Zhou X; Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Tang H; College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Ge Y; Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Guan J; College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Yang Z; Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
  • Nie H; College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P. R. China.
Small ; 20(30): e2311336, 2024 Jul.
Article en En | MEDLINE | ID: mdl-38385851
ABSTRACT
The electrocatalytic conversion of nitrate (NO3 -) to NH3 (NO3RR) at ambient conditions offers a promising alternative to the Haber-Bosch process. The pivotal factors in optimizing the proficient conversion of NO3 - into NH3 include enhancing the adsorption capabilities of the intermediates on the catalyst surface and expediting the hydrogenation steps. Herein, the Cu/Cu2O/Pi NWs catalyst is designed based on the directed-evolution strategy to achieve an efficient reduction of NO3‾. Benefiting from the synergistic effect of the OV-enriched Cu2O phase developed during the directed-evolution process and the pristine Cu phase, the catalyst exhibits improved adsorption performance for diverse NO3RR intermediates. Additionally, the phosphate group anchored on the catalyst's surface during the directed-evolution process facilitates water electrolysis, thereby generating Hads on the catalyst surface and promoting the hydrogenation step of NO3RR. As a result, the Cu/Cu2O/Pi NWs catalyst shows an excellent FE for NH3 (96.6%) and super-high NH3 yield rate of 1.2 mol h-1 gcat. -1 in 1 m KOH and 0.1 m KNO3 solution at -0.5 V versus RHE. Moreover, the catalyst's stability is enhanced by the stabilizing influence of the phosphate group on the Cu2O phase. This work highlights the promise of a directed-evolution approach in designing catalysts for NO3RR.
Palabras clave
Texto completo
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article