Strengthening Bonding Interaction of a (Co0.91V0.09)3(BTC)2 Metal-Organic Framework with BiVO4 Photoanodes Enabling Ultrastable Photoelectrochemical Water Oxidation

Liangcheng Xu; Yingjuan Zhang; Boyan Liu; Kang Wan; Xin Wang; Tingsheng Wang; Lianzhou Wang; Songcan Wang; Wei Huang

doi:10.1021/acsnano.5c01111

Strengthening Bonding Interaction of a (Co_0.91V_0.09)₃(BTC)₂ Metal-Organic Framework with BiVO₄ Photoanodes Enabling Ultrastable Photoelectrochemical Water Oxidation

Liangcheng Xu
, Yingjuan Zhang
, Boyan Liu
, Kang Wan
, Xin Wang
, Tingsheng Wang
, Lianzhou Wang
, Songcan Wang
, Wei Huang

Institute of Flexible Electronics

Northwestern Polytechnical University Xian
University of Queensland

Research output: Contribution to journal › Article › peer-review

Abstract

Although the oxygen evolution reaction (OER) activity of BiVO₄ photoanodes has been significantly enhanced, achieving long-term photostability is still challenging due to the gradual dissolution of V⁵⁺ during photoelectrochemical (PEC) water splitting. Herein, we deliberately generate ligand defects in a (Co_0.91V_0.09)₃(BTC)₂ metal-organic framework (CoV-MOF) that creates more undercoordinated sites, forming strong chemical bonds with BiVO₄. Consequently, the dissolution of V⁵⁺ from BiVO₄ during PEC water splitting can be effectively suppressed, leading to significantly enhanced stability. The optimized Co₃O₄/CoV-MOF/BiVO₄ photoanode exhibits a high photocurrent density of 6.0 mA cm^-2 at 1.23 V vs the reversible hydrogen electrode (RHE). Impressively, the photoanode can stably operate for 500 h at 0.6 V vs RHE under AM 1.5 G illumination. This work demonstrates the proof-of-concept of anchoring V⁵⁺ in BiVO₄ photoanodes achieving ultrastable PEC water splitting.

Original language	English
Journal	ACS Nano
DOIs	https://doi.org/10.1021/acsnano.5c01111
State	Accepted/In press - 2025

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

anchoring vanadium ions
enhanced stability
ligand defects
strengthening bonding interaction
water splitting

Access to Document

10.1021/acsnano.5c01111

Cite this

@article{fe69eb591bea4a9982296915619dc5cc,

title = "Strengthening Bonding Interaction of a (Co0.91V0.09)3(BTC)2 Metal-Organic Framework with BiVO4 Photoanodes Enabling Ultrastable Photoelectrochemical Water Oxidation",

abstract = "Although the oxygen evolution reaction (OER) activity of BiVO4 photoanodes has been significantly enhanced, achieving long-term photostability is still challenging due to the gradual dissolution of V5+ during photoelectrochemical (PEC) water splitting. Herein, we deliberately generate ligand defects in a (Co0.91V0.09)3(BTC)2 metal-organic framework (CoV-MOF) that creates more undercoordinated sites, forming strong chemical bonds with BiVO4. Consequently, the dissolution of V5+ from BiVO4 during PEC water splitting can be effectively suppressed, leading to significantly enhanced stability. The optimized Co3O4/CoV-MOF/BiVO4 photoanode exhibits a high photocurrent density of 6.0 mA cm-2 at 1.23 V vs the reversible hydrogen electrode (RHE). Impressively, the photoanode can stably operate for 500 h at 0.6 V vs RHE under AM 1.5 G illumination. This work demonstrates the proof-of-concept of anchoring V5+ in BiVO4 photoanodes achieving ultrastable PEC water splitting.",

keywords = "anchoring vanadium ions, enhanced stability, ligand defects, strengthening bonding interaction, water splitting",

author = "Liangcheng Xu and Yingjuan Zhang and Boyan Liu and Kang Wan and Xin Wang and Tingsheng Wang and Lianzhou Wang and Songcan Wang and Wei Huang",

note = "Publisher Copyright: {\textcopyright} 2025 American Chemical Society.",

year = "2025",

doi = "10.1021/acsnano.5c01111",

language = "英语",

journal = "ACS Nano",

issn = "1936-0851",

publisher = "American Chemical Society",

}

TY - JOUR

T1 - Strengthening Bonding Interaction of a (Co0.91V0.09)3(BTC)2 Metal-Organic Framework with BiVO4 Photoanodes Enabling Ultrastable Photoelectrochemical Water Oxidation

AU - Xu, Liangcheng

AU - Zhang, Yingjuan

AU - Liu, Boyan

AU - Wan, Kang

AU - Wang, Xin

AU - Wang, Tingsheng

AU - Wang, Lianzhou

AU - Wang, Songcan

AU - Huang, Wei

PY - 2025

Y1 - 2025

N2 - Although the oxygen evolution reaction (OER) activity of BiVO4 photoanodes has been significantly enhanced, achieving long-term photostability is still challenging due to the gradual dissolution of V5+ during photoelectrochemical (PEC) water splitting. Herein, we deliberately generate ligand defects in a (Co0.91V0.09)3(BTC)2 metal-organic framework (CoV-MOF) that creates more undercoordinated sites, forming strong chemical bonds with BiVO4. Consequently, the dissolution of V5+ from BiVO4 during PEC water splitting can be effectively suppressed, leading to significantly enhanced stability. The optimized Co3O4/CoV-MOF/BiVO4 photoanode exhibits a high photocurrent density of 6.0 mA cm-2 at 1.23 V vs the reversible hydrogen electrode (RHE). Impressively, the photoanode can stably operate for 500 h at 0.6 V vs RHE under AM 1.5 G illumination. This work demonstrates the proof-of-concept of anchoring V5+ in BiVO4 photoanodes achieving ultrastable PEC water splitting.

AB - Although the oxygen evolution reaction (OER) activity of BiVO4 photoanodes has been significantly enhanced, achieving long-term photostability is still challenging due to the gradual dissolution of V5+ during photoelectrochemical (PEC) water splitting. Herein, we deliberately generate ligand defects in a (Co0.91V0.09)3(BTC)2 metal-organic framework (CoV-MOF) that creates more undercoordinated sites, forming strong chemical bonds with BiVO4. Consequently, the dissolution of V5+ from BiVO4 during PEC water splitting can be effectively suppressed, leading to significantly enhanced stability. The optimized Co3O4/CoV-MOF/BiVO4 photoanode exhibits a high photocurrent density of 6.0 mA cm-2 at 1.23 V vs the reversible hydrogen electrode (RHE). Impressively, the photoanode can stably operate for 500 h at 0.6 V vs RHE under AM 1.5 G illumination. This work demonstrates the proof-of-concept of anchoring V5+ in BiVO4 photoanodes achieving ultrastable PEC water splitting.

KW - anchoring vanadium ions

KW - enhanced stability

KW - ligand defects

KW - strengthening bonding interaction

KW - water splitting

UR - https://www.scopus.com/pages/publications/105003036717

U2 - 10.1021/acsnano.5c01111

DO - 10.1021/acsnano.5c01111

M3 - 文章

AN - SCOPUS:105003036717

SN - 1936-0851

JO - ACS Nano

JF - ACS Nano

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