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Efficient Hydrogen Production on a 3D Flexible Heterojunction Material
Author(s) -
Yu Huidi,
Xue Yurui,
Hui Lan,
Zhang Chao,
Li Yongjun,
Zuo Zicheng,
Zhao Yingjie,
Li Zhibo,
Li Yuliang
Publication year - 2018
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201707082
Subject(s) - materials science , catalysis , heterojunction , photocurrent , semiconductor , chemical engineering , molybdenum disulfide , metal , optoelectronics , composite material , chemistry , organic chemistry , engineering , metallurgy
A novel heterojunction material, with electron‐rich graphdiyne as the host and molybdenum disulfide as the catalytic center (eGDY/MDS), to produce ultraefficient hydrogen‐evolution reaction (HER) at all pH values is described. It is a surprise that the metallic conductor combined from two semiconductor materials, eGDY and MDS, leads to optimal free energy (Δ G H ) and enhancement in the intrinsic HER catalytic performances. The calculated and experimental results indicate that eGDY/MDS shows greatly enhanced catalytic activities and high stabilities in both acidic and alkaline conditions; these approach the outstanding performances of the state‐of‐the‐art noble‐metal‐based catalysts. The eGDY/MDS shows better activity than Pt/C in alkaline media and remarkable enhancement in photocurrent density. The high catalytic activity of eGDY/MDS originates from facilitated electronic transfer kinetics, high conductivity, more exposed catalytic active sites, and excellent mass transport.