Photothermal effect and hole transport properties of polyaniline for enhanced photoelectrochemical water splitting of BiVO4 photoanode

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 684, P. 758 - 768

Published: Jan. 10, 2025

Language: Английский

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Review on Synthesis, Modification, Morphology, and Combination of BiVO₄-based Catalysts for Photochemistry: Status, Advances, and Perspectives

Energy & Fuels, Journal Year: 2023, Volume and Issue: 38(2), P. 806 - 853

Published: Dec. 26, 2023

Faced with the aggravation of environmental pollution and looming energy crisis, BiVO4, as an emerging promising photocatalyst, has drawn more attention researchers. Because its suitable band gap special electronic structure, BiVO4 shows excellent photocatalytic activity, which advantages low preparation cost, visible-light absorption, edge position. Herein, research status BiVO4-related catalysts used in photocatalysis was reviewed, including preparations using hydrothermal method, metal–organic decomposition metal doping like noble rare earth, other structure designs BiVO4. The modification mechanism also further discussed summarized. performance enables application to than just PEC CO2 reduction. Finally, through review this paper, we hope make a contribution ideas synthesis photocatalysts better comprehensive properties.

Language: Английский

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Nanostructured BiVO₄ Photoanodes Fabricated by Vanadium-Infused Interaction for Efficient Solar Water Splitting

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(12), P. 14115 - 14122

Published: June 7, 2024

Bismuth vanadate (BiVO4) has emerged as a highly prospective material for photoanodes in photoelectrochemical (PEC) water oxidation. However, current limitations with this lie the difficulties producing stable and continuous BiVO4 layers efficient carrier transfer kinetics, thereby impeding its widespread application splitting processes. This study introduces an accessible fabrication approach that yields continuous, monoclinic nanostructured films, paving way their use PEC oxidation hydrogen production under solar light conditions. The involves intercalation of vanadium (V) ions into Bi2O3 films at 450 °C. Upon interaction V ions, film undergoes transformation from tetragonal to scheelite BiVO4. synthesis method enables single phase thicknesses up 270 nm. engineered film, devoid any pinholes could cause loss, exhibits robust photocurrent 1.0 mA/cm2 1.23 VRHE neutral electrolyte, without requiring additional modifications or doping. Moreover, we demonstrate incorporation cobalt phosphate (Co–Pi) cocatalyst photoanode significantly enhances lifetime photogenerated holes by factor 9, resulting further elevation 2.9 mA/cm2. remarkable enhancement can be attributed surface state passivation Co–Pi cocatalyst. Our opens facile route large-scale, technology.

Language: Английский

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Earth-Abundant Metal Oxides for Monolithic Tandem Photoelectrochemical Water Splitting Devices: Current Trends and Perspectives

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(7), P. 2919 - 2940

Published: June 11, 2024

Rather than supplying electrical power from a photovoltaic cell to separate water electrolyzer, photoelectrochemical (PEC) water-splitting studies attempt integrate key components into single device for solar-driven hydrogen production. Despite the compact architecture enhancing cost-efficiency of production, realization PEC technology remains challenging. In this review, we focus on physical properties earth-abundant metal oxides and choice as considerations constructing practical We introduce previous BiVO4 elaborate various methods facilitating transport charge carriers through their interface with an electrolyte. Furthermore, discuss how structures affects ionic usage precious elements. Based discussion, highlight wireless monolithic tandem made up elements expatiate aspects regarding preparation operation such devices.

Language: Английский

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An Electrolyte Additive Strategy for Enhancing Water-Splitting Hydrogen Production of Nickel-Based Electrodes

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Sustainable water electrolysis has emerged as a future technology for producing green hydrogen. The general approach to improving water-splitting hydrogen production is develop novel electrode materials. In this work, we reported an orthogonal approach, namely, regulating the electrolyte components. As proof of concept, Na2S additive was introduced electrolytes enhance performance Ni-based electrodes. Specifically, tiny amount (50 mM) employed reduce evolution overpotential Ni(OH)2 from 262 193 mV at 10 mA cm-2. situ Raman studies unveiled formation NiS active phase and S-H bond during electrocatalysis, which were responsible such improvement. Moreover, strategy also showed its success in other materials metallic Ni foam, saline water, catalytic reaction systems oxygen evolution.

Language: Английский

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New perspectives and challenges

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 339 - 370

Published: Jan. 1, 2025

Language: Английский

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Study on Electrocatalytic Activity of Metal Oxides

Catalysts, Journal Year: 2025, Volume and Issue: 15(6), P. 507 - 507

Published: May 22, 2025

Electrocatalysis represents a critical branch of catalysis research, characterized by its interdisciplinary nature and drawing interest from chemists, physicists, biochemists, surface scientists, materials engineers [...]

Language: Английский

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