Microenvironment Engineering of Single/Dual‐Atom Catalysts for Electrocatalytic Application

Advanced Materials, Год журнала: 2023, Номер 35(31)

Опубликована: Фев. 23, 2023

Single/dual-metal atoms supported on carbon matrix can be modulated by coordination structure and neighboring active sites. Precisely designing the geometric electronic uncovering structure-property relationships of single/dual-metal confront with grand challenges. Herein, this review summarizes latest progress in microenvironment engineering single/dual-atom sites via a comprehensive comparison single-atom catalyst (SACs) dual-atom catalysts (DACs) term design principles, modulation strategy, theoretical understanding structure-performance correlations. Subsequently, recent advances several typical electrocatalysis process are discussed to get general reaction mechanisms finely-tuned SACs DACs. Finally, full-scaled summaries challenges prospects given for This will provide new inspiration development atomically dispersed electrocatalytic application.

Язык: Английский

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Multicomponent transition metal oxides and (oxy)hydroxides for oxygen evolution

Nano Research, Год журнала: 2022, Номер 16(2), С. 1913 - 1966

Опубликована: Окт. 2, 2022

Язык: Английский

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Recent progress on design and applications of transition metal chalcogenide-associated electrocatalysts for the overall water splitting

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Год журнала: 2022, Номер 44, С. 7 - 49

Опубликована: Дек. 2, 2022

Язык: Английский

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Structural optimization of carbon-based diatomic catalysts towards advanced electrocatalysis

Coordination Chemistry Reviews, Год журнала: 2023, Номер 492, С. 215288 - 215288

Опубликована: Июнь 12, 2023

Язык: Английский

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Applications of MXene‐Based Single‐Atom Catalysts

Small Structures, Год журнала: 2023, Номер 4(7)

Опубликована: Янв. 27, 2023

Single‐atom catalysts (SACs) consist of isolated metal sites on the support through stable coordination bond, which usually have high catalytic activity and selectivity. With large surface area electron tunability, metallic carbides, nitrides, or carbonic nitrides (MXenes) are suitable carriers for supporting single‐metal atoms. The abundant surface‐functional groups vacancy defects MXenes ideal anchoring Herein, advanced synthesis characterization methods MXene‐based SACs first introduced. Three strategies (adsorption at functional groups, vacancies, terminating group vacancies) appear to be feasible in ensuring non‐aggregation atoms, attributed strong bonding between atoms carrier. applications electrocatalysis (including hydrogen evolution reaction, oxygen reduction carbon dioxide nitrogen reaction), energy storage Li‐ion batteries, metal–air supercapacitors), sensors gas biological sensors) fundamentally reviewed. Finally, own insight current challenges prospects is presented.

Язык: Английский

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Dual-atom Co-Fe catalysts for oxygen reduction reaction

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Год журнала: 2023, Номер 46, С. 48 - 55

Опубликована: Фев. 23, 2023

Язык: Английский

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Optimization strategies of high-entropy alloys for electrocatalytic applications

Chemical Science, Год журнала: 2023, Номер 14(45), С. 12850 - 12868

Опубликована: Янв. 1, 2023

This review summarizes the synthesis methods, characterization research progress and regulation strategies of HAEs in field electrocatalytic HER, HOR, OER, ORR, CO 2 RR, NRR AOR, providing deep understanding for future applications.

Язык: Английский

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Modulating Coordination of Iron Atom Clusters on N,P,S Triply‐Doped Hollow Carbon Support towards Enhanced Electrocatalytic Oxygen Reduction

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(49)

Опубликована: Окт. 24, 2023

Constructing atom-clusters (ACs) with in situ modulation of coordination environment and simultaneously hollowing carbon support are critical yet challenging for improving electrocatalytic efficiency atomically dispersed catalysts (ADCs). Herein, a general diffusion-controlled strategy based on spatial confining Kirkendall effect is proposed to construct metallic ACs N,P,S triply-doped hollow matrix (MACs /NPS-HC, M=Mn, Fe, Co, Ni, Cu). Thereinto, FeACs /NPS-HC the best catalytic activity oxygen reduction reaction (ORR) thoroughly investigated. Unlike benchmark sample symmetrical N-surrounded iron single-atoms N-doped (FeSAs /N-C), comprises bi-/tri-atomic Fe centers engineered S/N coordination. Theoretical calculation reveals that proper gathering could mildly delocalize electron distribution optimize free energy pathways ORR. In addition, triple doping structure further regulate local allow sufficient exposure active sites, resulting more enhanced ORR kinetics /NPS-HC. The zinc-air battery assembled as cathodic catalyst exhibits all-round superiority Pt/C most Fe-based ADCs. This work provides an exemplary method establishing atomic-cluster S-dominated hollowed matrix, which paves new avenue fabrication optimization advanced

Язык: Английский

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Recent progress in heteroatom doped carbon based electrocatalysts for oxygen reduction reaction in anion exchange membrane fuel cells

International Journal of Hydrogen Energy, Год журнала: 2022, Номер 48(9), С. 3593 - 3631

Опубликована: Ноя. 16, 2022

Oxygen reduction reaction (ORR) is a key step in many electrochemical devices such as fuel cells and metal-air batteries. However, the proceeds at significant overpotential requiring Pt-based catalysts. The scarcity economical challenges associated with Pt one of major limitations for commercialization devices. In this context, research community constantly exploring other low-cost earth-abundant materials ORR Carbon nanomaterials are identified promising electrocatalysts due to their superb electronic conductivity together high specific surface area. low reactivity carbon limiting factor fabrication Recent studies have proved that chemical modification network (substitution foreign atoms, Ex: N, S, B, F, P) could alter ORR. Many doping strategies been proposed including single atom doping, co-doping multi-atom doping. heteroatom doped carbons delivered results towards alkaline media. This review presents rational approach methods properties carbons, we believe be guiding material design advanced non-noble catalysts coming future.

Язык: Английский

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Synergistic cooperation between atomically dispersed Zn and Fe on porous nitrogen-doped carbon for boosting oxygen reduction reaction

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 335, С. 122875 - 122875

Опубликована: Май 13, 2023

Язык: Английский

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