Atomically dispersed materials: Ideal catalysts in atomic era

Nano Research, Год журнала: 2023, Номер 17(1), С. 18 - 38

Опубликована: Май 25, 2023

Язык: Английский

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Emerging Xene‐Based Single‐Atom Catalysts: Theory, Synthesis, and Catalytic Applications

Advanced Materials, Год журнала: 2023, Номер 36(3)

Опубликована: Июнь 17, 2023

Abstract In recent years, the emergence of novel 2D monoelemental materials (Xenes), e.g., graphdiyne, borophene, phosphorene, antimonene, bismuthene, and stanene, has exhibited unprecedented potentials for their versatile applications as well addressing new discoveries in fundamental science. Owing to unique physicochemical, optical, electronic properties, emerging Xenes have been regarded promising candidates community single‐atom catalysts (SACs) active sites or support matrixes significant improvement intrinsic activity selectivity. order comprehensively understand relationships between structure property Xene‐based SACs, this review represents a comprehensive summary from theoretical predictions experimental investigations. Firstly, calculations regarding both anchoring on doping/substituting heteroatoms at are briefly summarized. Secondly, controlled synthesis precise characterization presented SACs. Finally, current challenges future opportunities development SACs highlighted.

Язык: Английский

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Synthesis of MXene-based single-atom catalysts for energy conversion applications

Chemical Engineering Journal, Год журнала: 2023, Номер 474, С. 145700 - 145700

Опубликована: Сен. 1, 2023

Язык: Английский

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Dual‐Atomic‐Site Catalysts for Molecular Oxygen Activation in Heterogeneous Thermo‐/Electro‐catalysis

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(22)

Опубликована: Март 9, 2023

Efficient molecular oxygen activation (MOA) is the key to environmentally friendly catalytic oxidation reactions. In last decade, single-atomic-site catalysts (SASCs) with nearly 100 % atomic utilization and unique electronic structure have been widely investigated for MOA. However, single active site makes effect unsatisfactory difficult deal complex Recently, dual-atomic-site (DASCs) provided a new idea effective of (O2 ) due more diverse sites synergetic interactions among adjacent atoms. this review, we systematically summarized recent research progress DASCs MOA in heterogeneous thermo- electrocatalysis. Finally, look forward challenges application prospects construction

Язык: Английский

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ZnO single nanowire gas sensor: A platform to investigate the sensitization of Pt

Chemical Engineering Journal, Год журнала: 2023, Номер 473, С. 145481 - 145481

Опубликована: Авг. 15, 2023

Язык: Английский

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Ultrathin two-dimensional materials: New opportunities and challenges in ultra-sensitive gas sensing

Coordination Chemistry Reviews, Год журнала: 2024, Номер 505, С. 215691 - 215691

Опубликована: Янв. 31, 2024

Язык: Английский

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Stabilizing Single-Atom Pt on Fe₂O₃ Nanosheets by Constructing Oxygen Vacancies for Ultrafast H₂ Sensing

ACS Sensors, Год журнала: 2024, Номер 9(4), С. 2101 - 2109

Опубликована: Апрель 4, 2024

Single-atom catalysts (SACs) hold great promise in highly sensitive and selective gas sensors due to their ultrahigh atomic efficiency excellent catalytic activity. However, the extremely high surface energy of SACs, it is still a huge challenge synthesize stable single-atom metal on materials. Here, we report an layer deposition (ALD) strategy for elaborate synthesis Pt oxygen vacancy-rich Fe2O3 nanosheets (Pt–Fe2O3–Vo), which displayed ultrafast detection H2, achieving stability single atoms. Gas-sensing investigation showed that Pt–Fe2O3–Vo materials enabled significantly enhanced response 26.5–50 ppm was 17-fold higher than pure Fe2O3, as well time (2 s), low limit (86 ppb), improved stability. The experimental density functional theory (DFT) studies revealed abundant vacancy sites contributed stabilizing atoms via electron transfer. In addition, stabilized also greatly promote transfer H2 molecules thereby sensing performance. This work provides potential development chemical sensors.

Язык: Английский

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Materials Containing Single‐, Di‐, Tri‐, and Multi‐Metal Atoms Bonded to C, N, S, P, B, and O Species as Advanced Catalysts for Energy, Sensor, and Biomedical Applications

Advanced Science, Год журнала: 2024, Номер 11(33)

Опубликована: Июль 1, 2024

Abstract Modifying the coordination or local environments of single‐, di‐, tri‐, and multi‐metal atom (SMA/DMA/TMA/MMA)‐based materials is one best strategies for increasing catalytic activities, selectivity, long‐term durability these materials. Advanced sheet supported by metal atom‐based have become a critical topic in fields renewable energy conversion systems, storage devices, sensors, biomedicine owing to maximum utilization efficiency, precisely located centers, specific electron configurations, unique reactivity, precise chemical tunability. Several offer excellent support are attractive applications energy, medical research, such as oxygen reduction, production, hydrogen generation, fuel selective detection, enzymatic reactions. The strong metal–metal metal–carbon with metal–heteroatom (i.e., N, S, P, B, O) bonds stabilize optimize electronic structures atoms due interfacial interactions, yielding activities. These provide models understanding fundamental problems multistep This review summarizes substrate structure‐activity relationship different active sites based on experimental theoretical data. Additionally, new synthesis procedures, physicochemical characterizations, biomedical discussed. Finally, remaining challenges developing efficient SMA/DMA/TMA/MMA‐based presented.

Язык: Английский

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Improving the sensing performance of rambutan-like W18O49 based gas sensor for n-butanol by Ni doping

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 410, С. 135671 - 135671

Опубликована: Март 20, 2024

Язык: Английский

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Breaking symmetry for better catalysis: insights into single-atom catalyst design

Chemical Society Reviews, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

This review examines the strategies of symmetry breaking (charge/coordination/geometric) in single-atom catalysts to regulate active site electronic structures, greatly enhancing catalytic performance.

Язык: Английский

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