Enhancing Photocatalytic‐Transfer Semi‐Hydrogenation of Alkynes Over Pd/C₃N₄ Through Dual Regulation of Nitrogen Defects and the Mott–Schottky Effect

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(41)

Published: July 5, 2023

The selective hydrogenation of alkynes is an important reaction; however, the catalytic activity and selectivity in this reaction are generally conflicting. In study, ultrafine Pd nanoparticles (NPs) loaded on a graphite-like C3 N4 structure with nitrogen defects (Pd/DCN) synthesized. resulting Pd/DCN exhibits excellent photocatalytic performance transfer ammonia borane. rate superior to those Pd/BCN (bulk without defects) under visible-light irradiation. characterization results density functional theory calculations show that Mott-Schottky effect can change electronic NPs, thus enhances toward phenylacetylene. After 1 h, reaches 95%, surpassing (83%). Meanwhile, supports improve response accelerate separation photogenerated charges enhance Pd/DCN. Therefore, higher efficiency visible light, turnover frequency (TOF) 2002 min-1 . This TOF five times dark conditions 1.5 Pd/BCN. study provides new insights into rational design high-performance catalysts.

Language: Английский

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Recent progress and challenges of photocatalytic CO2 conversion into value-added multi-carbon products

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 502, P. 215623 - 215623

Published: Dec. 27, 2023

Language: Английский

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Atomic Engineering of Single‐Atom Nanozymes for Biomedical Applications

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)

Published: Feb. 7, 2024

Single-atom nanozymes (SAzymes) showcase not only uniformly dispersed active sites but also meticulously engineered coordination structures. These intricate architectures bestow upon them an exceptional catalytic prowess, thereby captivating numerous minds and heralding a new era of possibilities in the biomedical landscape. Tuning microstructure SAzymes on atomic scale is key factor designing targeted with desirable functions. This review first discusses summarizes three strategies for their impact reactivity biocatalysis. The effects choices carrier, different synthesis methods, modulation first/second shell, type number metal centers enzyme-like activity are unraveled. Next, attempt made to summarize biological applications tumor therapy, biosensing, antimicrobial, anti-inflammatory, other from mechanisms. Finally, how designed regulated further realization diverse reviewed prospected. It envisaged that comprehensive presented within this exegesis will furnish novel perspectives profound revelations regarding SAzymes.

Language: Английский

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Electronic modulation of a single-atom-based tandem catalyst boosts CO₂ photoreduction to ethanol

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(12), P. 5956 - 5969

Published: Jan. 1, 2023

A single-atom-based tandem photocatalyst (In 2 O 3 /Cu–O ) is fabricated for efficient CO -to-ethanol conversion. The electronic interaction between Cu and In promotes C–C coupling of *CO (on site) *COH Cu–O to form OC–COH species.

Language: Английский

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Nanoscale high-entropy alloy for electrocatalysis

Matter, Journal Year: 2023, Volume and Issue: 6(6), P. 1717 - 1751

Published: June 1, 2023

Language: Английский

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