Chemical Science, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
A dual back interface engineering strategy with a MoO 2 underlayer and Au transport channel enhances charge carrier dynamics in the Mo/MoO /Au/Sb (S,Se) 3 /CdS/TiO /Pt photocathodes, achieving 32.60 mA cm −2 photocurrent 3.58% HC-STH efficiency.
Язык: Английский
Advanced Functional Materials, Год журнала: 2024, Номер 34(46)
Опубликована: Июнь 20, 2024
Abstract Photoelectrochemical (PEC) cells are regarded as a promising approach to convert sunlight chemical fuels, whereas the serious photo‐induced charge recombination of semiconductor photoelectrode hinders its solar conversion efficiency. Over past few decades, designing and constructing heterojunction photoelectrodes via thermodynamically favorable transfer have been proven be effective in boosting separation. However, conventional construction strategy generally introduces incompatible, nonconformal, or defective interfaces, leaving considerable room improve efficiency photoelectrodes. To compensate for unsatisfied efficiency, some novel strategies, such grain boundary engineering, band gap field‐effected etc., adopted provide additional driving force, which significantly improves In this review, these strategies discussed beyond construction, prospects development applications photoanodes also proposed.
Язык: Английский
Процитировано
14
Chemical Society Reviews, Год журнала: 2024, Номер unknown
Опубликована: Дек. 16, 2024
This comprehensive review provides a holistic overview of recent advances in interface engineering strategies for photoelectrochemical water oxidation, highlighting their role improving device efficiency and stability.
Язык: Английский
Процитировано
6
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(48)
Опубликована: Июль 12, 2024
Abstract The photoelectrochemical reduction of nitrate to ammonia (PEC NO 3 RR) has emerged as a promising pathway for facilitating the natural nitrogen cycle. PEC RR can lower potential needed synthesis through photogenerated voltage, showcasing significant merging abundant solar energy with sustainable fixation. However, it is influenced by selective photocathodes poor carrier kinetics, low catalytic selectivity, and yields. There are few reports on suitable photoelectrodes owning efficient charge transport at overpotentials. Herein, we rationally constructed CuSn alloy co‐catalysts antimony sulfides highly an ultra‐low onset (0.62 V RHE ). CuSn/TiO 2 /Sb S achieved faradic efficiency 97.82 % applied 0.4 , yield 16.96 μmol h −1 cm −2 0 under one sun illumination. Dynamics experiments theoretical calculations have demonstrated that enhanced separation transfer efficiency, electrons participate in quickly. Meanwhile, moderate * adsorption this photocathode optimizes activity increases NH 4 + yield. This work opens avenue designing sulfide‐based route solar‐to‐ammonia conversion.
Язык: Английский
Процитировано
5
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(44)
Опубликована: Июль 16, 2024
The productions of hydrogen peroxide (H
Язык: Английский
Процитировано
2
Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(41), С. 28012 - 28022
Опубликована: Янв. 1, 2024
Single-crystal Sb 2 S 3 microtubes have been fabricated via a hydrothermal process using EDTA as structure-directing agent, exhibiting remarkable visible photodetection capabilities and holding potential for applications in optoelectronics.
Язык: Английский
Процитировано
2
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(32)
Опубликована: Май 16, 2024
Abstract Sb 2 S 3 has been extensively used as light absorber for photoelectrochemical cell. However, its p‐type nature may result in the formation of Schottky junction with substrates, thus hindering collection photogenerated holes. Herein, an ultrathin Cu x layer is successfully engineered bottom first time. Capitalizing on impressive electrical properties and superior optical properties, exhibits a high work function 4.90 eV, which causes upward band bending , forming hole‐transparent structure ohmic contact. The transparency enables back‐illumination /Cu platform, facilitating integration intricate catalyst layers transformation. When modified Pt nanoparticles, photocurrent density reaches −5.38 mA cm −2 at 0 V vs . RHE, marking fourfold increase compared to photocathode without layer. introducing molecular hybrid TC‐CoPc@carbon black, remarkable average −0.44 overpotential obtained CO reduction reaction, while less than −0.03 S.
Язык: Английский
Процитировано
1
Angewandte Chemie, Год журнала: 2024, Номер 136(32)
Опубликована: Май 16, 2024
Abstract Sb 2 S 3 has been extensively used as light absorber for photoelectrochemical cell. However, its p‐type nature may result in the formation of Schottky junction with substrates, thus hindering collection photogenerated holes. Herein, an ultrathin Cu x layer is successfully engineered bottom first time. Capitalizing on impressive electrical properties and superior optical properties, exhibits a high work function 4.90 eV, which causes upward band bending , forming hole‐transparent structure ohmic contact. The transparency enables back‐illumination /Cu platform, facilitating integration intricate catalyst layers transformation. When modified Pt nanoparticles, photocurrent density reaches −5.38 mA cm −2 at 0 V vs . RHE, marking fourfold increase compared to photocathode without layer. introducing molecular hybrid TC‐CoPc@carbon black, remarkable average −0.44 overpotential obtained CO reduction reaction, while less than −0.03 S.
Язык: Английский
Процитировано
0
Angewandte Chemie, Год журнала: 2024, Номер 136(48)
Опубликована: Июль 12, 2024
Abstract The photoelectrochemical reduction of nitrate to ammonia (PEC NO 3 RR) has emerged as a promising pathway for facilitating the natural nitrogen cycle. PEC RR can lower potential needed synthesis through photogenerated voltage, showcasing significant merging abundant solar energy with sustainable fixation. However, it is influenced by selective photocathodes poor carrier kinetics, low catalytic selectivity, and yields. There are few reports on suitable photoelectrodes owning efficient charge transport at overpotentials. Herein, we rationally constructed CuSn alloy co‐catalysts antimony sulfides highly an ultra‐low onset (0.62 V RHE ). CuSn/TiO 2 /Sb S achieved faradic efficiency 97.82 % applied 0.4 , yield 16.96 μmol h −1 cm −2 0 under one sun illumination. Dynamics experiments theoretical calculations have demonstrated that enhanced separation transfer efficiency, electrons participate in quickly. Meanwhile, moderate * adsorption this photocathode optimizes activity increases NH 4 + yield. This work opens avenue designing sulfide‐based route solar‐to‐ammonia conversion.
Язык: Английский
Процитировано
0
Angewandte Chemie, Год журнала: 2024, Номер 136(44)
Опубликована: Июль 16, 2024
Abstract The productions of hydrogen peroxide (H 2 O ) and in a photoelectrochemical (PEC) water splitting cell suffer from an onset potential that limits solar conversion efficiencies. Moreover, the formation H through two‐electron PEC oxidation reaction competes with four‐electron evolution reaction. Herein, we developed surface selenium doped antimony trisulfide photoelectrode integrated ruthenium cocatalyst (Ru/Sb (S,Se) 3 to achieve low high Faraday efficiency (FE) for selective production. photoanode exhibits outstanding average FE 85 % range 0.4–1.6 V RHE yield 1.01 μmol cm −2 min −1 at 1.6 , especially potentials 0.1–0.55 80.4 FE. Impressively, unassisted system employs light electrolyte was constructed simultaneously produce production on both Ru/Sb Pt/TiO /Sb S photocathode. enables rate 0.637 without applying any addition bias. To our knowledge, this is first demonstration Sb ‐based photoelectrodes exhibit /H two‐side strict key factor system, which represents its powerful platform productivity feasibility facilitate value‐added products neutral conditions.
Язык: Английский
Процитировано
0
Chemical Science, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
A dual back interface engineering strategy with a MoO 2 underlayer and Au transport channel enhances charge carrier dynamics in the Mo/MoO /Au/Sb (S,Se) 3 /CdS/TiO /Pt photocathodes, achieving 32.60 mA cm −2 photocurrent 3.58% HC-STH efficiency.
Язык: Английский
Процитировано
0