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Title: | Revealing component synergy of Ni-Fe/black phosphorous composites synthesized by self-designed electrochemical method for enhancing photoelectrocatalytic oxygen evolution reaction | Authors: | Xiao, He Xue, Shoufeng Fu, Zimei Zhao , Man Zhang, Li Zhang, Junming Wu, Haishun Jia, Jianfeng YANG, Nianjun |
Issue Date: | 2023 | Publisher: | HIGHER EDUCATION PRESS | Source: | Frontiers of Materials Science, 17 (2) (Art N° 230646) | Abstract: | Developing high-activity and low-cost catalysts is the key to eliminate the limitation of sluggish anodic oxygen evolution reaction (OER) during electrocatalytic overall water splitting. Herein, Ni-Fe/black phosphorous (BP) composites are synthesized using a simple three-electrode system, where exfoliation of bulky BP and synthesis of NiFe composites are simultaneously achieved. Under light illumination, the optimized Ni-Fe/BP composite exhibits excellent photoelectrocatalytic OER performance (e.g., the overpotential is 58 mV lower than a commercial RuO2 electrocatalyst at a current density of 10 mA center dot cm(-2)). The electron transfer on this composite is proved to follow a Ni-BP-Fe pathway. The electronic structure of this Ni-Fe/BP composite is effectively regulated, leading to optimized adsorption strength of the intermediate OH* and improved intrinsic activity for the OER. Together with active sites on the support, this Ni-Fe/BP composite possesses abundant electrochemical active sites and a bug surface area for the OER. The introduction of light further accelerates the electrocatalytic OER. This work provides a novel and facile method to synthesize high-performance metal/BP composites as well as the approaches to reveal their OER mechanisms. | Notes: | Zhao, M; Jia, JF (corresponding author), Shanxi Normal Univ, Sch Chem & Mat Sci, Key Lab Magnet Mol & Magnet Informat Mat, Minist Educ, Taiyuan 030032, Peoples R China.; Yang, NJ (corresponding author), Hasselt Univ, Dept Chem, B-3590 Diepenbeek, Belgium. zm03030225@sxnu.edu.cn; jiajf@dns.sxnu.edu.cn; nianjun.yang@uhasselt.be |
Keywords: | black phosphorous;(photo-)electrocatalysis;oxygen evolution reaction | Document URI: | http://hdl.handle.net/1942/40181 | ISSN: | 2095-025X | e-ISSN: | 2095-0268 | DOI: | 10.1007/s11706-023-0646-8 | ISI #: | 000982620600002 | Rights: | Higher Education Press 2023 | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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s11706-023-0646-8.pdf Restricted Access | Published version | 2.81 MB | Adobe PDF | View/Open Request a copy |
Y.pdf Until 2024-05-06 | Peer-reviewed author version | 1.51 MB | Adobe PDF | View/Open Request a copy |
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