Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/81217
| Title: | pH-Universal water splitting catalyst : Ru-Ni nanosheet assemblies | Authors: | Yang, J Shao, Q Huang, B Sun, M Huang, X |
Issue Date: | 2019 | Source: | Food science and human wellness, 2019, v. 11, p. 492-504 | Abstract: | Catalysis; Energy Materials; Materials Science © 2019 The Author(s)Although electrochemical water splitting is an effective and green approach to produce oxygen and hydrogen, the realization of efficient bifunctional catalysts that are stable in variable electrolytes is still a significant challenge. Herein, we report a three-dimensional hierarchical assembly structure composed of an ultrathin Ru shell and a Ru-Ni alloy core as a catalyst functioning under universal pH conditions. Compared with the typical Ir/C-Pt/C system, superior catalytic performances and excellent durability of the overall water splitting under universal pH have been demonstrated. The introduction of Ni downshifts the d-band center of the Ru-Ni electrocatalysts, modulating the surface electronic environment. Density functional theory results reveal that the mutually restrictive d-band interaction lowers the binding of (Ru, Ni)and (H, O)for easier O-O and H-H formation. The structure-induced eg-dz2 misalignment leads to minimization of surface Coulomb repulsion to achieve a barrier-free water-splitting process. | Keywords: | Catalysis Energy materials Materials science |
Publisher: | Elsevier BV | Journal: | Food science and human wellness | EISSN: | 2213-4530 | DOI: | 10.1016/j.isci.2019.01.004 | Rights: | © 2019 The Author(s). This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). The following publication Yang, J., Shao, Q., Huang, B., Sun, M., & Huang, X. (2019). pH-Universal Water Splitting Catalyst: Ru-Ni Nanosheet Assemblies. iScience, 11, 492-504 is available at https://doi.org/10.1016/j.isci.2019.01.004 |
| Appears in Collections: | Journal/Magazine Article |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Yang_pH-Universal_Water_Splitting.pdf | 15.59 MB | Adobe PDF | View/Open |
Access
View full-text via PolyU eLinks 
Page views
121
Last Week
2
2
Last month
Citations as of May 28, 2023
Downloads
87
Citations as of May 28, 2023
SCOPUSTM
Citations
81
Citations as of Jun 1, 2023
WEB OF SCIENCETM
Citations
79
Citations as of Jun 1, 2023
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.