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Regulation of Electronic Structures of the Urchin-Like NiCoP/CoP Nanocatalysts for Fast Hydrogen Evolution.
Chen, Xiaodong; Luo, Xiaoling; Zhang, Xuefeng; Wang, Huize; Li, Yongcheng; Ye, Lifang; Zheng, Jiahua; Li, Hao.
Afiliación
  • Chen X; School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China.
  • Luo X; Guangdong Provincial Key Laboratory for Electronic Functional Materials and Devices, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China.
  • Zhang X; School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China.
  • Wang H; School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China.
  • Li Y; Guangdong Provincial Key Laboratory for Electronic Functional Materials and Devices, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China.
  • Ye L; School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China.
  • Zheng J; Guangdong Provincial Key Laboratory for Electronic Functional Materials and Devices, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China.
  • Li H; School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China.
Chemistry ; 30(23): e202304266, 2024 Apr 22.
Article en En | MEDLINE | ID: mdl-38369590
ABSTRACT
The exploration of stable, efficient, and low-cost catalysts toward ammonia borane hydrolysis is of vital significance for the practical implementation of this hydrogen production technology. Integrating interface engineering and nano-architecture engineering is a favorable strategy to elevate catalytic performance, as it can modify the electronic structure and provide sufficient active sites simultaneously. In this work, urchin-like NiCoP/CoP heterostructures are prepared via a three-step hydrothermal-oxidation-phosphorization synthesis route. It is demonstrated that the original Ni/Co molar ratio and the amount of phosphorus are crucial for adjusting the morphology, enhancing the exposed surface area, facilitating charge transfer, and modulating the adsorption and activation of H2O molecules. Consequently, the optimal Ni1Co2P heterostructure displays remarkable catalytic properties in the hydrolysis of ammonia borane with a turnover frequency (TOF) value of 30.3 molH2 ⋅ min-1 ⋅ molmetal -1, a low apparent activation energy of 25.89 kJ ⋅ mol-1, and good stability. Furthermore, by combining infrared spectroscopy and isotope kinetics experiments, a possible mechanism for the hydrolysis of ammonia borane was proposed.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chemistry Asunto de la revista: QUIMICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chemistry Asunto de la revista: QUIMICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania