Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/139609
Title: | Interfacing epitaxial dinickel phosphide to 2D nickel thiophosphate nanosheets for boosting electrocatalytic water splitting | Authors: | Liang, Qinghua Zhong, Lixiang Du, Chengfeng Luo, Yubo Zhao, Jin Zheng, Yun Xu, Jianwei Ma, Jianmin Liu, Chuntai Li, Shuzhou Yan, Qingyu |
Keywords: | Science::Chemistry | Issue Date: | 2019 | Source: | Liang, Q., Zhong, L., Du, C., Luo, Y., Zhao, J., Zheng, Y., . . . Yan, Q. (2019). Interfacing epitaxial dinickel phosphide to 2D nickel thiophosphate nanosheets for boosting electrocatalytic water splitting. ACS Nano, 13(7), 7975-7984. doi:10.1021/acsnano.9b02510 | Project: | RG113/15 2016-T1-002-065 2017-T2-2-069 2018-T2-01-010 |
Journal: | ACS Nano | Abstract: | Heterostructures with abundant phase boundaries are compelling for surface-mediated electrochemical applications. However, rational design of such bifunctional electrocatalysts for efficient hydrogen and oxygen evolution reactions (HER and OER) is still challenging. Here, due to the well-matched lattice parameters, we easily achieved the epitaxy of two-dimensional ternary nickel thiophosphate (NiPS3) nanosheets with in-grown dinickel phosphide (Ni2P) through an in situ growth strategy. Density functional theory calculations reveal that the NiPS3/Ni2P heterojunction significantly decreases the kinetic barrier for hydrogen adsorption and accelerates electron transfer due to the built-in electric field at the epitaxial interfaces. The significantly improved electrocatalytic performance is shown to be closely related to the epitaxial interfacial area rather than the amount of secondary phase. Notably, the resultant NiPS3/Ni2P heterostructures enable an overall water splitting electrolyzer to achieve 50 mA cm–2 at a lower bias of 1.65 V compared to that for the pristine NiPS3 alone (2.02 V) and even the benchmark Pt/C//IrO2 electrocatalysts (1.69 V). | URI: | https://hdl.handle.net/10356/139609 | ISSN: | 1936-0851 | DOI: | 10.1021/acsnano.9b02510 | Schools: | School of Materials Science & Engineering | Rights: | This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Nano, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsnano.9b02510 | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | MSE Journal Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2019 Interfacing Epitaxial Dinickel Phosphide to 2D Nickel Thiophosphate Nanosheets for Boosting Electrocatalytic Water Splitting (ACS Nano) .pdf | 2.55 MB | Adobe PDF | ![]() View/Open |
SCOPUSTM
Citations
5
153
Updated on Dec 8, 2023
Web of ScienceTM
Citations
5
149
Updated on Oct 27, 2023
Page view(s)
232
Updated on Dec 8, 2023
Download(s) 50
122
Updated on Dec 8, 2023
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.