期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 774, 期 -, 页码 610-617出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.09.382
关键词
Au@InP nanopore arrays; Photoelectrochemical hydrogen evolution; Metal/semiconductor heterostructure
资金
- Natural Science Foundation of China [11574203, 51572103]
- Distinguished Young Scholar of Anhui Province [1808085J14]
- Natural Science Foundation of Anhui Province [1808085ME140]
- Foundation of Educational Commission of Anhui Province [KJ2018A0394, KJ2018A0393, KJ2016SD53]
Noble-metal Au nanoparticles decorated InP nanopore arrays have been synthesized via a facile impregnation-deposition method. The morphology and element composition of the resulting Au@InP composite samples were characterized by X-ray diffractometry (XRD), field-emission scanning electron microscopy, X-ray photoelectron spectroscopy. The as-obtained Au@InP nanoarray exhibits promising behavior in photoelectrochemical hydrogen production, giving rise to a dramatically enhanced photocurrent density and onset potential, much superior to that of pristine InP nanopore arrays. Density functional theory (DFT) calculation reveals that the enhanced PEC performance can be attributed to the reduced recombination of electron-hole pairs. Therefore, this work supplies an effective way for the construction of metal/semiconductor nanoarrays, which can be potentially used in the energy storage and conversion field. (C) 2018 Elsevier B.V. All rights reserved.
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