Journal of Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 623, P. 905 - 914
Published: May 10, 2022
Language: Английский
ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(5), P. 2981 - 2997
Published: Feb. 14, 2023
Controlling the electronic structure of transition-metal single-atom heterogeneous catalysts (SACs) is crucial to unlocking their full potential. The ability do this with increasing precision offers a rational strategy optimize processes associated adsorption and activation reactive intermediates, charge transfer dynamics, light absorption. While several methods have been proposed alter characteristics SACs, such as oxidation state, band structure, orbital occupancy, spin, lack systematic approach application makes it difficult control effects. In Perspective, we examine how configuration SACs can be engineered for thermochemical, electrochemical, photochemical applications, exploring relationship activity, selectivity, stability. We discuss synthetic analytical challenges in controlling discriminating possible directions toward closing gap between computational experimental efforts. By bringing topic center, hope stimulate research understand, control, exploit effects ultimately spur technological developments.
Language: Английский
Citations
131
Small Structures, Journal Year: 2022, Volume and Issue: 4(3)
Published: Oct. 27, 2022
Continuous consumption of fossil energy and excessive CO 2 emission severely restrict human society. Sustainable carbon cycle is a promising technology to simultaneously relieve greenhouse effect crisis based on electrocatalysis photocatalysis. However, the conversion efficiency confined by poor carriers utilization insufficient reactive sites. Single‐atom catalysts (SACs) display outstanding performance in effectively overcoming aforementioned problems. Herein, recent advances SACs for enhancing efficiency, selectivity, long‐range stability reduction are provided. First, characteristics have been introduced detail provide rational design relationship between structure performance, including type, structure, synthesis SACs. Then, high electrocatalytic, photocatalytic, thermocatalytic has discussed disclosing reaction mechanism, such as charge transfer, activation barriers, pathway. In particular, strategies summarized deep insight into designing developing more efficient Finally, an outlook current challenges perspectives proposed. This review aims systematic reference advanced catalytic conversion.
Language: Английский
Citations
94
Deleted Journal, Journal Year: 2022, Volume and Issue: 1, P. e9120006 - e9120006
Published: May 12, 2022
Organic synthesis driven by heterogeneous catalysis is a central research theme to both fundamental and industrial production of fine chemicals. However, the employment stoichiometric strong oxidizing or reducing reagents (e.g., K2Cr2O7 LiAlH4) harsh reaction conditions high temperature pressure) always leads products overreaction other by-product residues salt acid waste). Thus poor control product selectivity tremendous energy consumption result in urgent demand develop novel technologies for catalysis. Given current global development CO2 reduction sustainable utilization, one promising protocol photocatalysis. It enables solar-to-chemical conversion under mild room temperature, ambient pressure, air as oxidant) offers unique pathways improved control. To accurately tailor desired products, electronic structure positions valence-band maximum conduction-band minimum), geometric nanorod, nanosheet, porous morphology), surface chemical micro-environment vacancy sites co-catalysts) photocatalysts require rational design construction. In this review, we will briefly analyze some effective photocatalytic systems with excellent regulation ability organic transformations (mainly oxidation types) visible light irradiation, put forward opinions on optimal fabrication nanostructured realize selective synthesis.
Language: Английский
Citations
85
Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(3), P. 1103 - 1165
Published: Jan. 5, 2023
The catalytic hydrogenation of esters and carboxylic acids represents a fundamental important class organic transformations, which is widely applied in energy, environmental, agricultural, pharmaceutical industries. Due to the low reactivity carbonyl group esters, this type reaction is, however, rather challenging. Hence, specifically active catalysts are required achieve satisfactory yield. Nevertheless, recent years, remarkable progress has been made on development for reaction, especially heterogeneous catalysts, generally dominating industry. Here review, we discuss breakthroughs as well milestone achievements industrially utilizing catalysts. In addition, related hydrogenations that considered importance cleaner energy technologies circular chemical industry will be discussed detail. Special attention paid insights into structure–activity relationship, help readers develop rational design strategies synthesis more efficient
Language: Английский
Citations
83
Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 481, P. 215053 - 215053
Published: Feb. 13, 2023
Language: Английский
Citations
73
Tungsten, Journal Year: 2023, Volume and Issue: 5(2), P. 201 - 216
Published: Jan. 3, 2023
Language: Английский
Citations
52
ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(7), P. 5198 - 5226
Published: March 21, 2024
Among all renewable energy sources (e.g., solar energy, wind, and biomass), biomass is the only organic carbon resource which has great potential to partly replace nonrenewable fossil resources produce high value-added chemicals biofuels. Single-atom catalysts (SACs) have shown compelling prospects arguably become one of most active research fields in chemical catalysis due their fascinating strengths maximum atomic utilization, highly efficient catalytic reactivity, selectivity, good stability. Numerous achievements about SACs recently been amassed, including advanced synthesis methods, characterization techniques, theoretical calculation, allowing us forecast working mechanisms roles metals coordination sites process. Based on relevant literatures over past few years, this review summarizes preparation methods applications for conversions with a special focus structure–activity relationship reaction mechanism as well future developments SACs. This provides fundamental information development valorization, clearly stimulating emerging field.
Language: Английский
Citations
20
Green Chemistry, Journal Year: 2022, Volume and Issue: 24(6), P. 2267 - 2286
Published: Jan. 1, 2022
The current review article summarizes the recent advances of SACs in biomass conversion process. A detailed and fundamental discussion is made from aspects unique activity, reaction mechanism, industrial implications SACs.
Language: Английский
Citations
67
ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(24), P. 15091 - 15096
Published: Nov. 28, 2022
Precise adjustment of the electronic structure heterogeneous catalysts is an effective strategy to improve their catalytic properties. By preparing Pd1Ba1/Al2O3 double atom with a ball milling method as model catalyst, we demonstrate interfacial effect Pd species induced by Ba single atoms (SAs) promoters. The introduction SAs promotes transfer electrons from atoms, forming electron-rich Pdδ+ species. During catalysis, modification lower apparent activation energy and promote H2 dissociation, which dramatically enhances properties in several typical hydrogenation reactions under mild conditions.
Language: Английский
Citations
56
Trends in Chemistry, Journal Year: 2022, Volume and Issue: 4(4), P. 264 - 276
Published: Feb. 21, 2022
Language: Английский
Citations
52