Solar‐Light‐Driven Photocatalytic Oxidative Coupling of Phenol Derivatives over Bismuth‐Based Porous Metal Halide Perovskites DOI Creative Commons
Jinsun Lee, Ashwani Kumar, Harun Tüysüz

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(23)

Published: March 19, 2024

Abstract The selective oxidative coupling of phenol derivatives, involving carbon‐carbon (C−C) and carbon‐oxygen (C−O) bond formation, has emerged as a critical approach in the synthesis natural products. However, achieving precise control over selectivity reactions unsubstituted phenols utilizing solar light driving force remains big challenge. In this study, we report series porous Cs 3 Bi 2 X 9 (X=Cl, Br, I) photocatalysts with tailored band gaps compositions engineered for efficient solar‐light‐driven coupling. Notably, p‐Cs Br exhibited about 73 % C−C coupling, displaying high formation rate 47.3 μmol g cat −1 h under radiation. Furthermore, enables site‐selectivity derivatives on , enhancing distinctive structure appropriate band‐edge positions facilitated charge separation, surface interaction/activation phenolic hydroxyl groups, resulting kinetically preferred C−O bond. Mechanistic insights into reaction pathway, supported by comprehensive experiments, unveiled crucial role interfacial transfers Lewis acid sites stabilizing intermediates, thereby directing regioselectivity diradical couplings unsymmetrical biphenols.

Language: Английский

First-principles Calculations for Heterostructure Studies Involving CsPbI3 Perovskite and IV-VI Semiconductors DOI
Zhonghai Lin,

Chengshuai Sun,

Min Liu

et al.

Physica Scripta, Journal Year: 2024, Volume and Issue: 99(2), P. 025921 - 025921

Published: Jan. 9, 2024

Abstract The PbX(X = S, Se, Te)/CsPbI 3 heterostructure, formed by lead chalcogenides and halide perovskite CsPbI , holds promise for optoelectronic devices. Utilizing first-principles calculations with VASP software, this study investigates its structural, electronic, optical properties. With confirmed appropriate lattice mismatch rates (4.6%, 2.4%, 3.8%) similar octahedral frameworks, constructing the PbX/CsPbI heterostructure is feasible. Calculations of electronic properties reveal mechanisms to improve performance. type-I band alignment at interface(−5.27 eV < PbX −3.73 eV, −5.34 −3.57 eV) reduces electron hole recombination losses, enhancing energy transfer efficiency. This arrangement facilitates from PbX, supported charge density differences. Among three heterostructures, PbSe/CsPbI demonstrates superior capabilities, more pronounced clouds. extends ’s light absorption into near-infrared via influence. Spectral comparison reveals PbTe/CsPbI > PbS/CsPbI excelling in stability, transfer, Furthermore, under premise ensuring different characteristics can be achieved adjusting composition Se atoms . work provides a theoretical basis physical behind performance heterostructures as visible-to-near-infrared materials. It offers promising avenue design high-performance

Language: Английский

Citations

2
Electrical and optical investigations lead-free Cesium Bismuth iodide single crystal DOI
Mohamed Ben Bechir, Faisal Alresheedi

Optical Materials, Journal Year: 2023, Volume and Issue: 147, P. 114621 - 114621

Published: Dec. 3, 2023

Language: Английский

Citations

5
Heterogeneous Photocatalytic Hydrogenative Reactions Using Liquid Hydrogen Donors: Mechanisms, Catalysts Design, and Applications DOI
Dongsheng Zhang, Ren Su

Chemistry - A European Journal, Journal Year: 2023, Volume and Issue: 29(35)

Published: April 18, 2023

Heterogeneous photocatalysis is a promising approach for wide range of hydrogenative reactions owing to the mild reaction conditions and possibility employing liquid hydrogen donors. Currently, major interest focused on development high performance photocatalyst materials expansion scope. An overview from perspective donor thus related mechanistic understanding light-induced rare. Here, we have categorized photocatalytic by type employed donors (hydrocarbons water), discussed basic criteria abstraction these donors, elaborated design strategy materials.

Language: Английский

Citations

4
Solvothermal synthesis of bismuth-based halide perovskites: Investigating the influence of alcohol solvents on photocatalytic performance DOI
Vinh Huu Nguyen,

Linh Xuan Nong,

Oanh T. K. Nguyen

et al.

Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: 316, P. 129098 - 129098

Published: Feb. 22, 2024

Language: Английский

Citations

1
Solar‐Light‐Driven Photocatalytic Oxidative Coupling of Phenol Derivatives over Bismuth‐Based Porous Metal Halide Perovskites DOI Creative Commons
Jinsun Lee, Ashwani Kumar, Harun Tüysüz

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(23)

Published: March 19, 2024

Abstract The selective oxidative coupling of phenol derivatives, involving carbon‐carbon (C−C) and carbon‐oxygen (C−O) bond formation, has emerged as a critical approach in the synthesis natural products. However, achieving precise control over selectivity reactions unsubstituted phenols utilizing solar light driving force remains big challenge. In this study, we report series porous Cs 3 Bi 2 X 9 (X=Cl, Br, I) photocatalysts with tailored band gaps compositions engineered for efficient solar‐light‐driven coupling. Notably, p‐Cs Br exhibited about 73 % C−C coupling, displaying high formation rate 47.3 μmol g cat −1 h under radiation. Furthermore, enables site‐selectivity derivatives on , enhancing distinctive structure appropriate band‐edge positions facilitated charge separation, surface interaction/activation phenolic hydroxyl groups, resulting kinetically preferred C−O bond. Mechanistic insights into reaction pathway, supported by comprehensive experiments, unveiled crucial role interfacial transfers Lewis acid sites stabilizing intermediates, thereby directing regioselectivity diradical couplings unsymmetrical biphenols.

Language: Английский

Citations

1