Journal ArticleDOI
Bridging homogeneous and heterogeneous catalysis by heterogeneous single-metal-site catalysts
Xinjiang Cui,Wu Li,Pavel Ryabchuk,Kathrin Junge,Matthias Beller +4 more
- Vol. 1, Iss: 6, pp 385-397
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TLDR
In this paper, the authors discuss the latest developments in the field of single-metal-site catalysts, discussing how this catalyst class bridges heterogeneous and homogeneous catalysis, and providing a perspective on how the field might continue to develop.Abstract:
In heterogeneous single-metal-site catalysts (HSMSCs) the active metal centres are located individually on a support and are stabilized by neighbouring surface atoms such as nitrogen, oxygen or sulfur. Modern characterization techniques allow the identification of these individual metal atoms on a given support, and the resulting materials are often referred as single-atom catalysts. Their electronic properties and catalytic activity are tuned by the interaction between the central metal and the neighbouring surface atoms, and their atomically dispersed nature allows for metal utilization of up to 100%. In this way, HSMSCs provide new opportunities for catalysis, and with respect to structure build a bridge between homogeneous and heterogeneous catalysis. Herein, selected publications from 2010 in this area are reviewed and their perspectives for the near future are highlighted. Where appropriate, comparisons between HSMSCs and homogeneous/heterogeneous counterparts are presented. Single-atom catalysts have drawn increasing attention as methods for their preparation and characterization improve. Here, Beller and co-workers discuss the latest developments in the field of single-metal-site catalysts, discussing how this catalyst class bridges heterogeneous and homogeneous catalysis, and providing a perspective on how the field might continue to develop.read more
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References
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Journal ArticleDOI
Heterogeneous photocatalyst materials for water splitting
Akihiko Kudo,Yugo Miseki +1 more
TL;DR: This critical review shows the basis of photocatalytic water splitting and experimental points, and surveys heterogeneous photocatalyst materials for water splitting into H2 and O2, and H2 or O2 evolution from an aqueous solution containing a sacrificial reagent.
Journal ArticleDOI
Single-atom catalysis of CO oxidation using Pt1/FeOx
Botao Qiao,Aiqin Wang,Xiaofeng Yang,Lawrence F. Allard,Zheng Jiang,Yi-Tao Cui,Jingyue Liu,Jingyue Liu,Jun Li,Tao Zhang +9 more
TL;DR: Density functional theory calculations show that the high catalytic activity correlates with the partially vacant 5d orbitals of the positively charged, high-valent Pt atoms, which help to reduce both the CO adsorption energy and the activation barriers for CO oxidation.
Journal ArticleDOI
Single-atom catalysts: a new frontier in heterogeneous catalysis.
TL;DR: Recent advances in preparation, characterization, and catalytic performance of SACs are highlighted, with a focus on single atoms anchored to metal oxides, metal surfaces, and graphene, offering the potential for applications in a variety of industrial chemical reactions.
Journal ArticleDOI
Oxidation of Alcohols with Molecular Oxygen on Solid Catalysts
Tamas Mallat,Alfons Baiker +1 more
TL;DR: It is considered more feasible that the rate-deter-mining step is the cleavage of the C-H bond at the R-carbon atom, and the active site consists of an ensemble of metallic Auatoms and a cationic Au.
Journal ArticleDOI
Single Cobalt Atoms with Precise N-Coordination as Superior Oxygen Reduction Reaction Catalysts
Peiqun Yin,Tao Yao,Yuen Wu,Yuen Wu,Lirong Zheng,Yue Lin,Wei Liu,Huanxin Ju,Junfa Zhu,Xun Hong,Xun Hong,Zhaoxiang Deng,Gang Zhou,Shiqiang Wei,Yadong Li,Yadong Li +15 more
TL;DR: Durability tests revealed that the Co single atoms exhibit outstanding chemical stability during electrocatalysis and thermal stability that resists sintering at 900 °C, which could facilitate new discoveries at the atomic scale in condensed materials.
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