Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер unknown, С. 124672 - 124672
Опубликована: Окт. 1, 2024
Язык: Английский
Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown
Опубликована: Авг. 28, 2024
Strong metal-support interaction (SMSI) plays a vital role in tuning the geometric and electronic structures of metal species. Generally, high-temperature treatment (>500 °C) reducing atmosphere is required for constructing SMSI, which may induce sintering Herein, we use molten salts as reaction media to trigger formation high-intensity SMSI at reduced temperatures. The strong ionic polarization salt promotes breakage Ti-O bonds TiO
Язык: Английский
Процитировано
5
Inorganic Chemistry Frontiers, Год журнала: 2023, Номер 10(15), С. 4526 - 4533
Опубликована: Янв. 1, 2023
Fe/support catalysts exhibit excellent electrochemical NO 3 RR performance owing to the strong metal–support interaction (SMSI) between Fe active sites and supports.
Язык: Английский
Процитировано
13
Angewandte Chemie, Год журнала: 2024, Номер 136(42)
Опубликована: Июль 25, 2024
Abstract Precisely controlling the microstructure of supported metal catalysts and regulating metal‐support interactions at atomic level are essential for achieving highly efficient heterogeneous catalysts. Strong interaction (SMSI) not only stabilizes nanoparticles improves their resistance to sintering but also modulates electrical between species support, optimizing catalytic activity selectivity. Therefore, understating formation mechanism SMSI its dynamic evolution during chemical reaction scale is crucial guiding structural design performance optimization Recent advancements in situ transmission electron microscopy (TEM) have shed new light on these complex phenomena, providing deeper insights into dynamics. Here, research progress TEM investigation catalysis systematically reviewed, focusing dynamics, reactions, regulation methods SMSI. The significant advantages technologies highlighted. Moreover, challenges probable development paths studies provided.
Язык: Английский
Процитировано
4
Wiley Interdisciplinary Reviews Computational Molecular Science, Год журнала: 2025, Номер 15(1)
Опубликована: Янв. 1, 2025
ABSTRACT The catalytic CO 2 hydrogenation to produce valuable fuels and chemicals holds immense importance in addressing energy scarcity environmental degradation. Given that the real reaction system is complex dynamic, structure of catalysts might experience dynamic evolution under conditions. It implies active sites only generated during process. induction factor could be reactants, intermediates, products, other local chemical environments. Utilizing in‐situ/operando characterization techniques allows for real‐time observation process, further combining multiscale theoretical simulations can effectively reveal refined mechanisms. Herein, we summarized latest advancements understanding mechanisms process C 1 products (CH 3 OH, CO, CH 4 ). evolutions catalyst morphology, size, valence state, interface between component support were discussed, respectively. Future research benefit from more in‐situ simulation explore microstructure mechanism, aiming high conversion selectivity reactions.
Язык: Английский
Процитировано
0
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160151 - 160151
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0
Journal of the American Chemical Society, Год журнала: 2025, Номер 147(9), С. 7829 - 7839
Опубликована: Фев. 24, 2025
Strong metal–support interactions (SMSI) are at the cutting edge of catalysis research, yet their size-dependent nature remains both widespread and subject to ongoing debate. Here, we report discovery bell-shaped SMSI, establish its structure–SMSI–performance relationship in oxidative C–H/O–H coupling reactions. Using Au/ZnO as a prototypical catalyst, develop thermodynamic equilibrium model that quantitatively captures surface energy tension disparities, identifying particle size ratio descriptor for encapsulation dynamics. Larger Au particles with higher prone wetting by smaller ZnO particles, triggering lattice oxygen spillover form Au–O species accelerate rate-limiting hemiacetal β-H elimination. Simultaneously, residual vacancies serve frustrated Lewis pairs, synergizing replenish hemiacetals complete catalytic cycle. This dual promotional mechanism overcomes activation bottleneck traditional catalysts, achieving state-of-the-art performance 94.6% aldehyde conversion 97.0% ester selectivity. The obtained structure–SMSI relationships applicable Ir/ZnO Rh/ZnO similar SMSI–performance extending various substrates, including saturated, unsaturated, aromatic. These generalizable lay strong foundation strategic design manipulation SMSI states.
Язык: Английский
Процитировано
0
Inorganic Chemistry, Год журнала: 2025, Номер unknown
Опубликована: Март 4, 2025
The strong metal-support interaction (SMSI) in supported metal catalysts represents a crucial factor the design of highly efficient heterogeneous catalysts. This can modify surface adsorption state, electronic structure, and coordination environment metal, altering interface structure catalyst. These changes serve to enhance catalyst's activity, stability, reaction selectivity. In recent years, multitude researchers have uncovered range novel SMSI types induction methods including oxidized (O-SMSI), adsorbent-mediated (A-SMSI), wet chemically induced (Wc-SMSI). Consequently, systematic critical review is desirable illuminate latest advancements deliberate its application within article provides characteristics various most methods. It concluded that significantly contributes enhancing catalyst selectivity, increasing catalytic activity. Furthermore, this paper offers comprehensive extensive electrocatalysis hydrogen evolution (HER), oxygen (OER), reduction (ORR), carbon dioxide (CO2RR). Finally, opportunities challenges faces future are discussed.
Язык: Английский
Процитировано
0
ACS Catalysis, Год журнала: 2025, Номер unknown, С. 4845 - 4857
Опубликована: Март 7, 2025
Язык: Английский
Процитировано
0
ACS Omega, Год журнала: 2025, Номер unknown
Опубликована: Март 25, 2025
Noble metal oxides are highly valuable and act as a key component of metal-oxide interfaces in oxide-supported noble catalysts, which play crucial role modern industrial society. Here, we investigate the structure four common stable using 17O solid-state NMR. The optimal isotopic labeling temperature ensures highest efficiency while preserving oxides. variation characteristic signals for each oxide reveals oxygen species different chemical environments, NMR parameters related to shift anisotropy quadrupolar interaction obtained from spectral fitting indicate more structural information. DFT calculations used assist assignments various species. This work serves prerequisite studying catalysts.
Язык: Английский
Процитировано
0
Journal of the American Chemical Society, Год журнала: 2025, Номер unknown
Опубликована: Апрель 24, 2025
The strong metal-support interaction (SMSI) is one of the most important concepts in heterogeneous catalysis, which plays a crucial role modifying catalytic performance. However, study SMSI on single-atom catalysts (SACs), are considered to bridge homogeneous and remains preliminary. Here, best our knowledge, we first report oxidative SMSIs SACs utilize them enhance hydroformylation activity stability. surface-adsorbed Rh single atoms tend be encapsulated by ZrO2 supports after calcination air can re-exposed reduction H2. highest turnover frequency (TOF) reaches 11,097 h-1, surpassing previously reported SACs. embedded Rh, generated through SMSI, also shows enhanced stability resist metal leaching. Our work expands conceptual boundaries paves way for future design highly active stable catalysts.
Язык: Английский
Процитировано
0