Visible-Light-Driven Photoreduction of CO2 with H2O Vapor over Oxygen Vacancy-Rich Mn3O4–Nanocrystal/FeOOH S-Scheme Heterojunction DOI
Xinyu Chen,

Qiong Wu,

Li Li

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(22), P. 25857 - 25866

Published: Nov. 1, 2024

Constructing S-scheme heterojunctions to achieve spatial separation of oxidative and reductive centers, rapid transfer electrons, functional interactions is a promising strategy for realizing the overall photoreaction CO2 H2O. Herein, series Mn3O4/FeOOH photocatalysts were prepared by anchoring Mn3O4 nanocrystals onto 1D FeOOH solvothermal method. The difference in Fermi level between composite system band bending at interface are enhanced, thereby generating built-in internal electric field (BIEF). In situ X-ray photoelectron spectroscopy demonstrated that BIEF directs flow photogenerated electrons from conductive valence Mn3O4. As result, without cocatalysts or sacrificial agents, heterojunction delivers high C1 yield rate 22.5 μmol g–1 h–1 under visible-light irradiation, which ca. 11.3 times higher than single counterpart Furthermore, introducing with oxygen vacancies can obtain an center production capacity during photocatalytic water oxidation. This enhancement not only accelerates reaction but also promotes photoreduction synergistic results achieved through make it possible produce solar fuels involving reduction

Language: Английский

Synergistic Effects in the Electrochemical Carbon Dioxide Reduction Reaction for Multi‐Carbon Product Formation DOI

Xiaoqin Xu,

Jingqi Guan

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract The synergistic effects in electrocatalysis can significantly enhance catalyst performance by improving catalytic activity, selectivity, and stability, optimizing reaction mechanisms electron transfer processes. This review summarizes recent advancements the of electrochemical reduction CO 2 (eCO RR) to multi‐carbon (C 2+ ) products. Starting with fundamental principles eCO RR for C product formation, paper outlines producing , 3 4 5 A comprehensive discussion is provided on critical impact structure–performance relationship production Subsequently, observed are classified various electrocatalysts different properties, including single/dual‐atom catalysts, multi‐centric single‐atom alloys, metal‐organic frameworks, heterojunction catalysts. Finally, challenges achieving selective formation through discussed, along corresponding strategies overcome obstacles.

Language: Английский

Citations

0
Intricacies in the Electrochemical Interface Due to the Surface Structure and Surface Electronics States and Their Probing DOI
Ashis Kumar Satpati, Sudipa Manna

Current Opinion in Electrochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 101675 - 101675

Published: Feb. 1, 2025

Language: Английский

Citations

0
Machine-learning-assisted Design of Cathode Catalysts for Metal-Sulfur/Oxygen/Carbon Dioxide Batteries DOI
Qi Zhang, Rui Yang,

Zhengran Wang

et al.

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104261 - 104261

Published: April 1, 2025

Language: Английский

Citations

0
Achievements and Challenges in Carbon‐Free Dual‐Atom Catalysts for Electrocatalysis DOI
Luoluo Qi, Jingqi Guan

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

Abstract Carbon‐free dual‐atom catalysts (CFDACs) are beginning to make their presence in the field of electrocatalysis due unique properties and structures that different from those carbon‐based DACs, which endowed with activity, selectivity, stability. Currently, some advances made study CFDACs, including structure‐performance relationships metal‐support interaction, theoretical combined experiments, electrocatalytic applications potential catalytic mechanisms, design strategies achieve highly active performance. Herein, perception CFDACs is first elaborated terms carbon‐free substrates sites, then briefly summarizes advanced characterization techniques, study, energy storage conversion applications, highlights realize high‐performance vacancy anchoring, strain regulation, alloying, finally put forward personal viewpoints on current challenges future development CFDACs.

Language: Английский

Citations

0
Visible-Light-Driven Photoreduction of CO2 with H2O Vapor over Oxygen Vacancy-Rich Mn3O4–Nanocrystal/FeOOH S-Scheme Heterojunction DOI
Xinyu Chen,

Qiong Wu,

Li Li

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(22), P. 25857 - 25866

Published: Nov. 1, 2024

Constructing S-scheme heterojunctions to achieve spatial separation of oxidative and reductive centers, rapid transfer electrons, functional interactions is a promising strategy for realizing the overall photoreaction CO2 H2O. Herein, series Mn3O4/FeOOH photocatalysts were prepared by anchoring Mn3O4 nanocrystals onto 1D FeOOH solvothermal method. The difference in Fermi level between composite system band bending at interface are enhanced, thereby generating built-in internal electric field (BIEF). In situ X-ray photoelectron spectroscopy demonstrated that BIEF directs flow photogenerated electrons from conductive valence Mn3O4. As result, without cocatalysts or sacrificial agents, heterojunction delivers high C1 yield rate 22.5 μmol g–1 h–1 under visible-light irradiation, which ca. 11.3 times higher than single counterpart Furthermore, introducing with oxygen vacancies can obtain an center production capacity during photocatalytic water oxidation. This enhancement not only accelerates reaction but also promotes photoreduction synergistic results achieved through make it possible produce solar fuels involving reduction

Language: Английский

Citations

1