Design Principles and Strategies of Photocatalytic H2O2 Production from O2 Reduction DOI
Shuai Wu, Xie Quan

ACS ES&T Engineering, Journal Year: 2022, Volume and Issue: 2(6), P. 1068 - 1079

Published: Jan. 25, 2022

H2O2, as an important chemical and environmentally friendly oxidant, has been applied in various fields, such synthesis, pulp bleaching, disinfection, environmental remediation. Nevertheless, the industrial anthraquinone process for production of H2O2 is energy-intensive only suitable centralized H2O2. Photocatalytic from O2 reduction a promising approach on-site decentralized synthesis. Although photocatalysts have developed, efficiency still limited by narrow light absorption range, rapid charge recombination, slow surface reaction. In this perspective, we briefly introduce basic mechanism photocatalytic reduction. Subsequently, propose design principles discuss universal strategies enhancing performance production, aspects absorption, separation, catalytic reaction, reactor configurations. Finally, present our prospects suggestions development future. We hope that perspective can provide useful guidance rational efficient novel advance both insights practical applications production.

Language: Английский

Crystal Engineering Enables Cobalt-Based Metal–Organic Frameworks as High-Performance Electrocatalysts for H2O2 Production DOI
Chaoqi Zhang,

Ling Yuan,

Chao Liu

et al.

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(14), P. 7791 - 7799

Published: March 10, 2023

Metal-organic frameworks (MOFs) with highly adjustable structures are an emerging family of electrocatalysts in two-electron oxygen reduction reaction (2e-ORR) for H2O2 production. However, the development MOF-based 2e-ORR catalysts high selectivity and production rate remains challenging. Herein, elaborate design fine control over MOFs at both atomic nano-scale is demonstrated, enabling well-known Zn/Co bimetallic zeolite imidazole (ZnCo-ZIFs) as excellent electrocatalysts. Experimental results combined density functional theory simulation have shown that level can regulate role water molecules participating ORR process, morphology desired facet exposure adjusts coordination unsaturation degree active sites. The structural regulation two length scales leads to synchronous kinetics thermodynamics on ZIF catalysts. optimized ZnCo-ZIF a molar ratio 9/1 predominant {001} exhibits 2e- ∼100% yield 4.35 mol gcat-1 h-1. findings pave new avenue toward multivariate advanced

Language: Английский

Citations

125
An organic perspective on photocatalytic production of hydrogen peroxide DOI
Thomas Freese, Jelmer T. Meijer, Ben L. Feringa

et al.

Nature Catalysis, Journal Year: 2023, Volume and Issue: 6(7), P. 553 - 558

Published: July 25, 2023

Language: Английский

Citations

122
Promoting Solar‐driven Hydrogen Peroxide Production over Thiazole‐based Conjugated Polymers via Generating and Converting Singlet Oxygen DOI

Jing-Zhao Cheng,

Sijie Wan,

Shaowen Cao

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(40)

Published: Aug. 16, 2023

Solar-driven synthesis of hydrogen peroxide (H2 O2 ) from water and air provides a low-cost eco-friendly alternative route to the traditional anthraquinone method. Herein, four thiazole-based conjugated polymers (Tz-CPs: TTz, BTz, TBTz BBTz) are synthesized via aldimine condensation. BBTz exhibits highest H2 production rate 7274 μmol g-1 h-1 in pure water. Further, reaction path is analyzed by electron paramagnetic resonance (EPR), situ diffuse reflectance infrared Fourier transform (DRIFT) theoretical calculation, highlighting prominent role singlet oxygen (1 ). The generation 1 occurs through oxidation superoxide radical (⋅O2- subsequent conversion into endoperoxides [4+2] cycloaddition over BBTz, which promotes charge separation reduces barrier for production. This work new insight mechanism photocatalytic reduction molecular design superior single-polymer photocatalysts.

Language: Английский

Citations

121
Recent advances and trends of heterogeneous electro-Fenton process for wastewater treatment-review DOI
Zining Wang, Mingyue Liu, Fan Xiao

et al.

Chinese Chemical Letters, Journal Year: 2021, Volume and Issue: 33(2), P. 653 - 662

Published: July 23, 2021

Language: Английский

Citations

113
Design Principles and Strategies of Photocatalytic H2O2 Production from O2 Reduction DOI
Shuai Wu, Xie Quan

ACS ES&T Engineering, Journal Year: 2022, Volume and Issue: 2(6), P. 1068 - 1079

Published: Jan. 25, 2022

H2O2, as an important chemical and environmentally friendly oxidant, has been applied in various fields, such synthesis, pulp bleaching, disinfection, environmental remediation. Nevertheless, the industrial anthraquinone process for production of H2O2 is energy-intensive only suitable centralized H2O2. Photocatalytic from O2 reduction a promising approach on-site decentralized synthesis. Although photocatalysts have developed, efficiency still limited by narrow light absorption range, rapid charge recombination, slow surface reaction. In this perspective, we briefly introduce basic mechanism photocatalytic reduction. Subsequently, propose design principles discuss universal strategies enhancing performance production, aspects absorption, separation, catalytic reaction, reactor configurations. Finally, present our prospects suggestions development future. We hope that perspective can provide useful guidance rational efficient novel advance both insights practical applications production.

Language: Английский

Citations

109