Isolating Single and Few Atoms for Enhanced Catalysis

Yang, Chen; Lin, Jian; Jia, Baohua; Wang, Xiaodong; Jiang, Shuaiyu; Ma, Tianyi

doi:10.1002/adma.202201796

Cited by 128 publications

(84 citation statements)

References 362 publications

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“…[138] As a typical representation, the obtained Ni 2 /NC catalyst shows excellent chemical selectivity to the reverse water gas shift (r-WGS) reaction and more excellent catalytic activity than the monoatomic Ni 1 /NC. [134,139] Also, there was no significant excess of hydrogenation products (CH 3 OH, C 2 H 6 , and HCOOH) over the Ni 2 /NC catalyst under H 2 -rich conditions (10H 2 :1CO 2 ). The key to this method is to select the metal precursor to obtain the corresponding homonuclear and heteronuclear DACs, and form M 2 /NC (M = Ni, Co) and Fe 1 M 1 /NC (M = Pd, Ni), respectively.…”

Section: Simple Ball Milling (Mechanical Chemistry) Methodsmentioning

confidence: 97%

Recent Progress of Diatomic Catalysts: General Design Fundamentals and Diversified Catalytic Applications

2022

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In recent years, some experiments and theoretical work have pointed out that diatomic catalysts not only retain the advantages of monoatomic catalysts, but also introduce a variety of interactions, which exceed the theoretical limit of catalytic performance and can be applied to many catalytic fields. Here, the interaction between adjacent metal atoms in diatomic catalysts is elaborated: synergistic effect, spacing enhancement effect (geometric effect), and electronic effect. With regard to the classification and characterization of various new diatomic catalysts, diatomic catalysts are classified into four categories: heteronuclear/homonuclear, with/without carbon carriers, and their characterization measures are introduced and explained in detail. In the aspect of preparation of diatomic catalysts, the widely used atomic layer deposition method, metal–organic framework derivative method, and simple ball milling method are introduced, with emphasis on the formation mechanism of diatomic catalysts. Finally, the effective control strategies of four diatomic catalysts and the key applications of diatomic catalysts in electrocatalysis, photocatalysis, thermal catalysis, and other catalytic fields are given.

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Section: Simple Ball Milling (Mechanical Chemistry) Methodsmentioning

confidence: 97%

Recent Progress of Diatomic Catalysts: General Design Fundamentals and Diversified Catalytic Applications

2022

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“…So far, many impressive review papers have summarized the synthesis, characterization, and catalytic performance of SACs [ 51 , 52 , 53 ]. However, methods for breaking the symmetry of metal-N 4 sites, and the unique electronic structure and CO 2 RR catalytic behavior of asymmetric atom sites, are rarely summarized [ 54 , 55 ].…”

Section: Introductionmentioning

confidence: 99%

Asymmetric Coordination Environment Engineering of Atomic Catalysts for CO2 Reduction

et al. 2023

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Single-atom catalysts (SACs) have emerged as well-known catalysts in renewable energy storage and conversion systems. Several supports have been developed for stabilizing single-atom catalytic sites, e.g., organic-, metal-, and carbonaceous matrices. Noticeably, the metal species and their local atomic coordination environments have a strong influence on the electrocatalytic capabilities of metal atom active centers. In particular, asymmetric atom electrocatalysts exhibit unique properties and an unexpected carbon dioxide reduction reaction (CO2RR) performance different from those of traditional metal-N4 sites. This review summarizes the recent development of asymmetric atom sites for the CO2RR with emphasis on the coordination structure regulation strategies and their effects on CO2RR performance. Ultimately, several scientific possibilities are proffered with the aim of further expanding and deepening the advancement of asymmetric atom electrocatalysts for the CO2RR.

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“…Unsaturated coordination sites in catalysis promote the speed and efficiency of reactions, which reduce the energy potential barriers that must be crossed in a reaction, thus speeding up the process. 18 Precisely, due to this unique structural feature, SACs often exhibit different activity, selectivity and stability from that of conventional nanocatalysts. A large amount of research work on SACs has appeared in recent years and several reviews have summarized the synthesis, characterization and applications of single atoms.…”

Section: Introductionmentioning

confidence: 99%

Single-atom catalysts for energy conversion

Wang

Zhang

et al. 2023

J. Mater. Chem. A

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Isolating Single and Few Atoms for Enhanced Catalysis

Abstract: Figure 3. Geometric and electronic structures of single/dual-atom, atomic clusters, and nanoparticles.

Cited by 128 publications

References 362 publications

Recent Progress of Diatomic Catalysts: General Design Fundamentals and Diversified Catalytic Applications

Recent Progress of Diatomic Catalysts: General Design Fundamentals and Diversified Catalytic Applications

Asymmetric Coordination Environment Engineering of Atomic Catalysts for CO2 Reduction

Single-atom catalysts for energy conversion

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