Bifunctional Hybrid Ni/Ni2P Nanoparticles Encapsulated by Graphitic Carbon Supported with N, S Modified 3D Carbon Framework for Highly Efficient Overall Water Splitting. Issue 15 (13th June 2018)

• Record Type: Journal Article
• Authors: Sun, Yiqiang; Zhang, Tao; Li, Xinyang; Bai, Yu; Lyu, Xianjun; Liu, Guangqiang; Cai, Weiping; Li, Yue
• Is Part Of: Advanced materials interfaces. Volume 5:Issue 15(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-06-13
• Subjects: bifunctional electrocatalyst -- hybrid structures -- hydrogen evolution -- water oxidation -- water splitting; Materials science -- Periodicals; 620.11
• DOI: 10.1002/admi.201800473
• Languages: English
• ISSNs: 2196-7350

Abstract

Abstract: The novel hybrid Ni/Ni2 P nanoparticles with graphitic carbon coating supported by 3D N, S dual modified binder‐free macroporous carbon framework (Ni/Ni2 P@3DNSC) are reported as an efficient bifunctional electrocatalysts for the production of hydrogen and oxygen. The obtained Ni/Ni2 P@3DNSC electrode exhibits an excellent catalytic activity with a low overpotential of 231 mV for oxygen evolution reaction (OER) and 92 mV for hydrogen evolution reaction (HER) due to the strong coupled interface of Ni and Ni2 P, synergistic effects between the hybrid Ni/Ni2 P core and the graphitic carbon shell, the unique porous structure, and the heteroatoms doped effect. When both are used as cathode and anode, only a low cell voltage of 1.55 V is needed to achieve the current density of 10 mA cm −2 . This work demonstrates a new avenue for the development of bifunctional nonprecious electrocatalysts for the sustainable energy utilization. Abstract : 3D N, S dual modified carbon supported Ni/Ni2 P hybrid catalysts : 3D N, S dual modified porous carbon framework supported Ni/Ni2 P hybid catalyts exhibit highly efficient hydrogen evolution reaction (HER), Oxygen evolution reaction (OER), and overall electrochemical water splitting performance.