Journal of Alloys and Compounds, Год журнала: 2023, Номер 976, С. 173244 - 173244
Опубликована: Дек. 20, 2023
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
17
Energy & Environmental Science, Год журнала: 2024, Номер 17(20), С. 7459 - 7511
Опубликована: Янв. 1, 2024
This review provides a comprehensive overview on the mechanism of photoelectrochemical biomass conversion and highlights extension dual-function cells for valorization paired with more valuable half-reactions.
Язык: Английский
Процитировано
12
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(9)
Опубликована: Янв. 13, 2024
Directional organic transformation via a green, sustainable catalytic reaction has attracted lot of attention. Herein, we report photoelectrochemical approach for highly selective epoxidation alkenes in salt solution using Co
Язык: Английский
Процитировано
11
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Май 9, 2024
Abstract Surface reconstruction, reorganizing the surface atoms or structure, is a promising strategy to manipulate materials' electrical, electrochemical, and catalytic properties. Herein, rapid reconstruction of indium sulfide (In 2 S 3 ) demonstrated via high‐temperature flame treatment improve its charge collection The process selectively transforms In into diffusionless O layer with high crystallinity. Additionally, it controllably generates bulk sulfur vacancies within few seconds, leading surface‐reconstructed (sr‐In ). When using those sr‐In as photoanode for photoelectrochemical water splitting devices, these dual functions /bulk reduce recombination in region, thus improving photocurrent density stability. With optimized demonstrates significant 8.5 mA cm −2 at 1.23 V versus reversible hydrogen electrode (RHE), marking 2.5‐fold increase compared pristine (3.5 More importantly, exhibits an impressive 7.3 0.6 RHE iodide oxidation reaction. A practical scalable also showcased treatment. This work provides new insights engineering sulfide‐based semiconductors, making breakthrough developing efficient solar‐fuel energy devices.
Язык: Английский
Процитировано
10
Nano Letters, Год журнала: 2024, Номер 24(15), С. 4633 - 4640
Опубликована: Апрель 3, 2024
The glycerol oxidation reaction (GOR) run with photoelectrochemical cells (PECs) is one of the most promising ways to upgrade biomass because it thermodynamically favorable, while irreversible overoxidation leads unsatisfactory product selectivities. Herein, a tunable one-dimensional nanoconfined environment was introduced into GOR process, which accelerated mass transfer via microscale fluid effect and changed main from formic acid (FA) glyceraldehyde (GLD), led retention heavier multicarbon products. rate diffusion in nanochannels increased by factor 4.92 decreasing inner diameters. PEC-selective C1 FA C3 GLD great selectivity 60.7%. This work provides favorable approach for inhibiting further products illustrates importance microenvironmental regulation oxidation.
Язык: Английский
Процитировано
7
Advanced Energy Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 10, 2025
Abstract Adipic acid, an essential building stock for polymers, is conventionally synthesized through thermal oxidation of ketone−alcohol oil. However, this process requires excessive nitric acid as oxidants, causing the emission ozone−depleting greenhouse gas nitrous oxide. Herein, a photoelectrochemical (PEC) strategy reported efficient synthesize adipic by selective cyclohexanone (CYC). High selectivity (>90%) in wide potential window (from 0.3 to 1.3 V versus RHE) achieved under ambient conditions based on TiO 2 nanorods array photoanode modified with nickel hydroxide nanosheets (Ni(OH) /TiO ). Experimental and theoretical data reveal that new Ni 2+ δ ─OH * reactive center moderate capacity situ generated Ni(OH) illumination, which abstracts H atoms from C α ─H bonds CYC obtain 2−hydroxycyclohexanone intermediate, thereby facilitates subsequent C─C cleavage produce acid. Moreover, PEC synthesis industrial raw material phenol coupling cathodic reduction photoanodic demonstrating sustainable approach directly using solar energy.
Язык: Английский
Процитировано
1
Materials Today Energy, Год журнала: 2024, Номер 44, С. 101648 - 101648
Опубликована: Июль 16, 2024
Язык: Английский
Процитировано
6
Journal of Catalysis, Год журнала: 2024, Номер 438, С. 115709 - 115709
Опубликована: Авг. 19, 2024
Язык: Английский
Процитировано
5
ChemCatChem, Год журнала: 2024, Номер unknown
Опубликована: Апрель 19, 2024
Abstract This review comprehensively explores the integration of photocatalytic (PC) and photoelectrocatalytic (PEC) technologies for hydrogen production via water splitting, in synergy with efficient conversion biomass resources. synergistic strategy significantly boosts rates both PC PEC systems enhances solar energy efficiency. Furthermore, it enables selective cost‐effective precise modulation catalyst structures, paving a novel pathway green generation synthesis high‐value chemicals. Specifically, manuscript highlights recent progress oxidation coupling reactions derivatives, such as methanol, ethanol, glycerol, 5‐hydroxymethylfurfural, PC/PEC systems. It reveals their potential to enhance efficiency organic compounds. Future research should focus on employing in‐situ characterization techniques theoretical simulations deeply understand reaction mechanisms, thus advancing field through photocatalytic/photoelectrocatalytic methods.
Язык: Английский
Процитировано
4
EcoEnergy, Год журнала: 2025, Номер unknown
Опубликована: Апрель 18, 2025
ABSTRACT Hematite is a promising candidate material for photoanodes, but the efficiency of state‐of‐the‐art hematite photoanodes limited by low absorption coefficient, short hole diffusion length, and slow water oxidation kinetics. In this work, high‐efficiency photoanode was designed fabricated introducing titanium‐doped (Ti:Fe 2 O 3 ) homojunction with different doping contents hierarchical nanorod/nanobowl array structure. The homojuction consisted Ti nanorods grown on high nanobowl arrays, leading to formation broad built‐in electric field, significantly enhancing charge separation transfer within bulk. Furthermore, radially inside bowls bowl edges enabled enhanced light through multiple scattering while offering larger electrode–electrolyte contact area providing more reaction sites. Compared Ti:Fe nanorod exhibited an increase in photocurrent density from 1.6 mA cm −2 3.0 at 1.23 V versus RHE, maintaining long‐term stability over 100 h RHE. This study not only achieved high‐performance also provided new perspective design differently desired nanostructures.
Язык: Английский
Процитировано
0