NDLI: Pencil-like Hollow Carbon Nanotubes Embedded CoP-V<sub>4</sub>P<sub>3</sub> Heterostructures as a Bifunctional Catalyst for Electrocatalytic Overall Water Splitting.

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Pencil-like Hollow Carbon Nanotubes Embedded CoP-V₄P₃ Heterostructures as a Bifunctional Catalyst for Electrocatalytic Overall Water Splitting.

Content Provider	Europe PMC
Author	Chang, Haiyang Liang, Zhijian Lang, Kun Fan, Jiahui Ji, Lei Yang, Kejian Lu, Shaolin Ma, Zetong Wang, Lei Wang, Cheng
Editor	Tagmatarchis, Nikos
Copyright Year	2023
Abstract	Electrocatalytic water splitting is one of the most efficient ways of producing green hydrogen energy. The design of stable, active, and efficient electrocatalysts plays a crucial role in water splitting for achieving efficient energy conversion from electrical to hydrogen energy, aimed at solving the lingering energy crisis. In this work, CNT composites modified with CoP-V4P3 composites (CoVO-10-CNT-450P) were formed by carbonising a pencil-like precursor (Co3V2O8-H2O) and growing carbon nanotubes in situ, followed by in situ phosphorylation on the carbon nanotubes. In the HER electrocatalytic process, an overpotential of only 124 mV was exhibited at a current density of 10 mA cm−2. In addition, as an OER catalyst, a low overpotential of 280 mV was attained at a current density of 10 mA cm−2. Moreover, there was no noticeable change in the performance of the catalyst over a 90 h test in a continuous total water splitting experiment. The unique electronic structure and hollow carbon nanotube structure of CoVO-10-CNT-450P effectively increased the catalytic active sites, while also significantly improving the electrocatalytic activity. This work provides theoretical guidance for the design and synthetic route of high-performance non-precious metal electrocatalysts, and actively promotes the commercial application of electrochemical water splitting.
Journal	Nanomaterials (Basel, Switzerland)
Volume Number	13
PubMed Central reference number	PMC10222086
Issue Number	10
PubMed reference number	37242083
e-ISSN	20794991
DOI	10.3390/nano13101667
Language	English
Publisher	MDPI
Publisher Date	2023-05-18
Access Restriction	Open
Rights License	Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). © 2023 by the authors.
Subject Keyword	transition metal catalyst oxygen evolution reaction oxygen reduction reaction zinc–air battery electrocatalytic mechanism
Content Type	Text
Resource Type	Article
Subject	Chemical Engineering Materials Science

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Pencil-like Hollow Carbon Nanotubes Embedded CoP-V4P3 Heterostructures as a Bifunctional Catalyst for Electrocatalytic Overall Water Splitting.

Pencil-like Hollow Carbon Nanotubes Embedded CoP-V₄P₃ Heterostructures as a Bifunctional Catalyst for Electrocatalytic Overall Water Splitting.