Experimental Study and Optimization Analysis of Operating Conditions on Photo-Thermochemical Cycle of Water Splitting for Hydrogen Production Based on CeO2 Catalyst DOI Creative Commons
Zhiyong Zhang, Huimin Hu, Jie Yang

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(24), P. 6314 - 6314

Published: Dec. 14, 2024

The photo-thermochemical cycle (PTC) for water splitting offers a sustainable method hydrogen production by efficiently utilizing solar energy. This study explored the use of CeO2 as catalyst in PTC system to enhance yield. A nanostructured was synthesized via sol-gel method, achieving an H2 yield 8.35 μmol g−1 h−1. Stability tests over five cycles showed consistent yields between 7.22 and Analysis revealed that oxygen vacancies (VOs) increased after photoreaction depleted during thermal reaction, which aligns with expected mechanism production. Single-factor experiments highlighted duration mainly influenced VOs generation, while temperature impacted consumption intermediate reaction rates. response surface methodology (RSM) model predicted optimal conditions maximum (8.85 h−1) 46.6 min, 45.4 547.2 °C.

Language: Английский

Breaking barriers: Novel approaches to proton-conducting oxide materials DOI
Muhammad Tayyab, Sajid Rauf, Abdul Zeeshan Khan

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(20), P. 40526 - 40552

Published: June 5, 2024

Language: Английский

Citations

5
Photothermal‐Catalyzed Hydrogen Peroxide Production Enabled by Gold‐Organic Frameworks DOI Open Access
Ping Wu,

Fangming Du,

Qiang Xue

et al.

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

Published: Jan. 20, 2025

Abstract Gold catalysts are extensively utilized in photothermal processes that rely on localized surface plasmon resonance effects. However, the development of novel gold(I)‐organic frameworks function as highly efficient for production hydrogen peroxide from water and oxygen presents a fascinating challenging research opportunity. Herein, three gold(I) cyclic trinuclear complexes (Au‐CTCs) based metal–organic (MOFs) prepared, exhibiting good conversion efficiency H 2 O evolution rates. Utilizing optimized Au‐TFPT, rates H₂O₂ can reach high 51,987 µ m g⁻¹ h⁻¹, surpassing performance most reported (MOFs), even with use sacrificial agents to accelerate reaction. The thermal‐assisted photocatalytic mechanism is comprehensively studied by transient photocurrent response, electrochemical impedance, electron paramagnetic resonance, rotating ring disk electrode test, catalytic among others, demonstrating thermal energy enhance mobility photogenerated carriers apparent quantum yield, regulate reactive species ratio selectivity, reduce activation photocatalysis, improve mass transfer rates, thereby accelerating reaction process. This study offers new insights into .

Language: Английский

Citations

0
Three-dimensional transportation mechanism of transmission-mode AlGaN nanoarray photocathode within four steps from photon excitation to electron collection DOI
Xian Wu, Yu Diao, Sihao Xia

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162927 - 162927

Published: March 1, 2025

Language: Английский

Citations

0
Recent advances in photothermal assisted photocatalytic CO2 reduction and H2 production by semiconductor heterojunctions DOI
Pankaj Sharma, Amit Kumar, Tongtong Wang

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(6), P. 114876 - 114876

Published: Nov. 23, 2024

Language: Английский

Citations

2
Experimental Study and Optimization Analysis of Operating Conditions on Photo-Thermochemical Cycle of Water Splitting for Hydrogen Production Based on CeO2 Catalyst DOI Creative Commons
Zhiyong Zhang, Huimin Hu, Jie Yang

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(24), P. 6314 - 6314

Published: Dec. 14, 2024

The photo-thermochemical cycle (PTC) for water splitting offers a sustainable method hydrogen production by efficiently utilizing solar energy. This study explored the use of CeO2 as catalyst in PTC system to enhance yield. A nanostructured was synthesized via sol-gel method, achieving an H2 yield 8.35 μmol g−1 h−1. Stability tests over five cycles showed consistent yields between 7.22 and Analysis revealed that oxygen vacancies (VOs) increased after photoreaction depleted during thermal reaction, which aligns with expected mechanism production. Single-factor experiments highlighted duration mainly influenced VOs generation, while temperature impacted consumption intermediate reaction rates. response surface methodology (RSM) model predicted optimal conditions maximum (8.85 h−1) 46.6 min, 45.4 547.2 °C.

Language: Английский

Citations

1