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Highly efficient sub-nanometer RuxCuyP2 nanoclusters designed for hydrogen evolution under alkaline media.
Yang, Beibei; Bin, Duan; Zhong, Qingmei; Li, Binxiao; Liu, Yixin; Lu, Hongbin; Liu, Baohong.
Afiliación
  • Yang B; Department of Chemistry and Chemical Engineering, Nantong University, Nantong 226000, China; Department of Chemistry, and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, China.
  • Bin D; Department of Chemistry and Chemical Engineering, Nantong University, Nantong 226000, China; Department of Chemistry, and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, China. Electronic address: dbin17@fudan.edu.cn.
  • Zhong Q; Department of Chemistry, and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, China.
  • Li B; Department of Chemistry, and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, China.
  • Liu Y; Department of Chemistry, and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, China.
  • Lu H; Department of Chemistry and Chemical Engineering, Nantong University, Nantong 226000, China. Electronic address: luhb@ntu.edu.cn.
  • Liu B; Department of Chemistry, and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, China. Electronic address: bhliu@fudan.edu.cn.
J Colloid Interface Sci ; 602: 222-231, 2021 Nov 15.
Article en En | MEDLINE | ID: mdl-34119759
ABSTRACT
Design of highly active and stable non-precious electrocatalysts towards hydrogen evolution reaction (HER) is a hot research topic in low cost, clean and sustainable hydrogen energy field, yet remaining the important challenge caused by the sluggish reaction kinetics for water-alkali electrolyzers. Herein, a robust electrocatalyst is proposed by designing a novel sub-nanometer of copper and ruthenium bimetallic phosphide nanoclusters (RuxCuyP2) supported on a graphited carbon nanofibers (CNF). Uniform RuxCuyP2 (~1.90 nm) on the surface of CNF are obtained by introducing the dispersed Ru, thereby improving the intrinsic activity for HER. On optimizing the Ru ratio, the (x = y = 1) RuCuP2/CNF catalyst exhibits an excellent HER electroactivity with an overpotential of 10 mV in 1.0 M NaOH electrolyte to produce 10 mA cm-2 current density, which is lower than commercial 20% Pt/C in alkaline solution. Moreover, the kinetic study demonstrated that electrochemical activation energies for HER of RuCuP2/CNF is 20.7 kJ mol-1 highest among different ratio bimetallic phosphide. This simple, cost-effective, and environmentally friendly methodology can pave the way for exploitation of bimetallic phosphide nanoclusters for catalyst design.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2021 Tipo del documento: Article País de afiliación: China
Texto completo
Añadir a Mi BVS
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2021 Tipo del documento: Article País de afiliación: China