Three-dimensional TiO2 nanobelt array with disordered surface and oxygen vacancies for boosted photoelectrochemical water splitting DOI
Ming Meng,

Hucheng Zhou,

Weifeng Liu

et al.

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 49(3), P. 886 - 892

Published: Dec. 4, 2024

A three-dimensional array of reduced TiO 2 nanobelts with a disordered surface and abundant oxygen vacancies was successfully constructed for PEC water splitting.

Language: Английский

Combinational effect of NiFeOx/Tb(OH)x as hole extractor for enhanced charges separation and stability of BiVO4 photoanode for solar water splitting DOI Creative Commons
Yuxuan Chen, Jiayi Huang, Jingyu Zhou

et al.

Materials Today Advances, Journal Year: 2024, Volume and Issue: 25, P. 100554 - 100554

Published: Dec. 24, 2024

Language: Английский

Citations

14
Unequal {110} Facets: The Potential Role of Intraparticle Heterogeneity and Facet Termination in Photoelectrochemical Activity of Single BiVO4 Particles DOI
Avishek Banik, Hiroaki Maekawa, Javier Fajardo

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

BiVO4 photoanodes are promising for solar water splitting, with photogenerated electrons and holes preferentially reacting at top {010} lateral {110} facets, respectively. However, the mechanisms driving this facet-dependent reactivity remain unclear. Here, we investigate photocurrent material heterogeneity using correlative scanning photoelectrochemical microscopy (SPCM), electron beam induced current (EBIC) mapping, mid-IR scattering near-field optical (s-SNOM). SPCM measurements of 62 particles confirmed higher photocurrents facets compared to but unexpectedly revealed variations in among within same particle. Variations facet surface termination could explain intraparticle-level heterogeneity, consistent theoretical predictions. Nano-FTIR spectroscopy Raman microspectroscopy indicated significant materials chemistry individual that be attributed lattice vibration distortions enhance overlap between Bi 6s O 2p orbitals. The increased orbital is as it potentially increases hole mobility valence band explains charge separation efficiency observed maps. Facet-dependent electrical EBIC showed no space regions interfacet junctions or metal-BiVO4 contacts under vacuum, suggesting beneath unlikely transport drive water/sulfite oxidation. These findings indicate potential influence distinct bulk properties chemistries across different highlighting importance carefully controlling defects during sample growth optimize photocatalytic performance.

Language: Английский

Citations

1
Enhancing Photoelectrochemical Water Oxidation Using Ferromagnetic Materials and Magnetic Fields DOI
Qingjie Wang,

Louise L. Oldham,

Alfredo Giner-Requena

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Photoelectrochemical (PEC) water splitting provides a promising strategy for H

Language: Английский

Citations

5
Doping engineering achieves BiVO4 and hematite band matching accelerating photoelectrochemical water splitting DOI
Chenchen Feng, Xiao Jia, Xiaojiao Shao

et al.

Fuel, Journal Year: 2025, Volume and Issue: 387, P. 134457 - 134457

Published: Jan. 20, 2025

Language: Английский

Citations

0
Dual mediators promote charge transfer of hematite photoanode for durable photoelectrocatalytic water splitting DOI
Yuanyuan Jiang, Yan Zhang, Mengmeng Liu

et al.

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2025, Volume and Issue: 69, P. 75 - 83

Published: Feb. 1, 2025

Language: Английский

Citations

0
Surface Engineered BiVO4 for Photoelectrochemical Alkene Epoxidation via Bromine Mediation DOI
Qingjie Wang, Linxiao Wu,

Haiwen Shi

et al.

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 2026 - 2034

Published: March 31, 2025

Language: Английский

Citations

0
Boosting Oxygen Evolution Reaction Performance on BiVO4 Photoanode via Gradient Oxygen Vacancies DOI

Nan Li,

Yan Wei,

Shujie Liu

et al.

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 2162 - 2170

Published: April 4, 2025

Language: Английский

Citations

0
Integrating P‐Doped Carbon Nitride Dots as Active Sites on P/Mo Co‐Doped BiVO4 Photoanodes Promotes H2O2 Production DOI
Yankun Wang, Yuntao Xu, Xirui Zhang

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract The indirect anthraquinone method is currently used to produce H 2 O , but it leads high energy consumption and a large amount of chemical waste. Alternatively, water oxidation reactions offer potential green approach for production, although constrained by low selectivity. Herein, the functional photoanodes are rationally designed production via photocatalytic oxidation. Specifically, P/Mo co‐doped BiVO 4 films achieved on conductive glass serve as layer, which coated with an ultrathin amorphous TiO film achieve good stability. Importantly, metal‐free P‐doped polymeric carbon nitride dots deposited photoanode, acting reaction centres. This innovative moves away from traditional reliance inorganic materials co‐catalysts in order suppress thermodynamically favoured O₂ evolution, which, turn, significantly enhances selectivity, efficiency stability H₂O₂ production. Consequently, optimal selectivity ≈64% at applied voltage bias 1.7 V versus RHE 1.0 m KHCO 3 solution, achieving yield ≈34.2 µmol hr −1 cm −2 . research offers novel strategy developing optimised photoanode synthesis.

Language: Английский

Citations

0
Unlocking the Potential of Photoelectrochemical Water Splitting via Heterointerface Charge Polarization DOI Creative Commons
Xu Li, Xingming Ning, Jingjing Quan

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

Abstract The coupling of semiconductor (SC) and transition metal oxyhydroxide (TMOOH) is a promising approach for solar fuel production. However, the inevitable interfacial charge recombination sluggish oxygen evolution reactions severely hinder application photoelectrochemical (PEC) device. This study demonstrates an innovative polarization strategy that simultaneously enhances both long‐range transfer surface catalytic reaction dynamics through rational construction CoO x /MnO heterointerface in SC/TMOOH system. Kelvin probe force microscopy, situ ultraviolet/visible spectroelectrochemistry, density functional theory calculations indicate tunable Co δ− Mn δ+ can affect influences TMOOH/electrolyte interfaces, primarily inducing accelerated ( K h ) diminishing adsorption oxygen‐containing intermediates. As anticipated, BiVO 4 /CoO /FeNiOOH exhibits impressive photocurrent 6.75 mA cm −2 at 1.23 V RHE , along with superior photostability. Furthermore, smart also be harnessed /CeO photoanode. provides novel design optimal photoanodes PEC water splitting.

Language: Английский

Citations

0
N-Doped Carbon Dots as Electrolytes to Boost Photoelectrochemical Water Oxidation for the Photo-assisted Zinc-Air Battery DOI
Zibo An, Chenguang Li, Yongshuai Zhang

et al.

Chemical Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

BiVO 4 photoanodes in an N-doped carbon dot solution can dynamically assemble into p–n heterojunctions, achieving enhanced charge separation for water oxidation that significantly reduces the voltage gap photo-assisted zinc–air batteries.

Language: Английский

Citations

0