A5014923511- Catalytic Processes in Materials Science
- Nanomaterials for catalytic reactions
- Electrocatalysts for Energy Conversion
- Catalysis and Oxidation Reactions
- Catalysis and Hydrodesulfurization Studies
- Catalysts for Methane Reforming
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Zeolite Catalysis and Synthesis
- High-Temperature Coating Behaviors
- Catalysis for Biomass Conversion
- Brain Metastases and Treatment
- Ammonia Synthesis and Nitrogen Reduction
- Copper-based nanomaterials and applications
- Radiopharmaceutical Chemistry and Applications
- Asymmetric Hydrogenation and Catalysis
- Lung Cancer Treatments and Mutations
- Carbon dioxide utilization in catalysis
- Advancements in Battery Materials
- Metallurgical Processes and Thermodynamics
- Nanocluster Synthesis and Applications
- Mesoporous Materials and Catalysis
- Electrochemical Analysis and Applications
- High Temperature Alloys and Creep
- Advanced materials and composites
Gansu Agricultural University
2025
Hebei University
2025
Chinese Academy of Sciences
2015-2024
University of Science and Technology of China
2017-2024
Beijing University of Chemical Technology
2024
Gansu Provincial Maternal and Child Health Hospital
2023
University of Science and Technology Liaoning
2023
Henan Cancer Hospital
2023
ORCID
2021
University of Chinese Academy of Sciences
2020
The mechanism on interfacial synergistic catalysis for supported metal catalysts has long been explored and investigated in several important heterogeneous catalytic processes (e.g., water–gas shift (WGS) reaction). modulation of metal–support interactions imposes a substantial influence activity selectivity reaction, as result the geometric/electronic structure sites. Although great efforts have validated key role sites WGS over reducible oxides, direct evidence at atomic level is lacking...
The design and exploitation of high-performance catalysts have gained considerable attention in selective hydrogenation reactions, but remain a huge challenge. Herein, we report RuNi single atom alloy (SAA) which Ru atoms are anchored onto Ni nanoparticle surface via Ru-Ni coordination accompanied with electron transfer from sub-surface to Ru. optimal catalyst 0.4% SAA exhibits simultaneously improved activity (TOF value: 4293 h-1) chemoselectivity toward 4-nitrostyrene 4-aminostyrene...
Abstract Supported gold catalysts play a crucial role in the chemical industry; however, their poor on-stream stability because of sintering nanoparticles restricts practical application. The strong metal-support interaction (SMSI), an important concept heterogeneous catalysis, may be applied to construct structure and, hence, improve reactivity and stability. Here we report ultrastable Au nanocatalyst after calcination at 800 °C, which are encapsulated by permeable TiO x thin layer induced...
The metal-support interaction (MSI) in heterogeneous catalysts plays a crucial role reforming reaction to produce renewable hydrogen, but conventional objects are limited single metal and support. Herein, we report type of RhNi/TiO2 with tunable RhNi-TiO2 strong bimetal-support (SBMSI) derived from structure topological transformation RhNiTi-layered double hydroxides (RhNiTi-LDHs) precursors. resulting 0.5RhNi/TiO2 catalyst (with 0.5 wt.% Rh) exhibits extraordinary catalytic performance...
Abstract Supported gold (Au) nanocatalysts have attracted extensive interests in the past decades because of their unique catalytic properties for a number key chemical reactions, especially (selective) oxidations. The activation O 2 on Au is crucial and remains challenge only small nanoparticles (NPs) can effectively activate . This severely limits practical application NPs inevitably sinter into larger ones during reaction due to low Taman temperature. Here we construct Au-SiO interface by...
Abstract Light elements in the interstitial site of transition metals have strong influence on heterogeneous catalysis via either expression surface structures or even direct participation into reaction. Interstitial atoms are generally metastable with a environmental dependence, setting up giant challenges controlling catalysis. Herein, we show that desired carbon can be manipulated within nickel (Ni) lattice for improving selectivity acetylene hydrogenation The radius octahedral space Ni...
Classical strong metal–support interaction (SMSI) has attracted intensive attention in the heterogeneous catalysis field; however, its crystalline TiOx overlayer and reversible feature often curtail effect of classical SMSI on enhancing catalytic performance supported metal catalysts oxidation reactions, especially at elevated temperatures. Here, we report evidence that Pt nanoparticles can be encapsulated by an amorphous permeable cover layer Pt/TiO2 under oxidative atmosphere, where keys...
Catalytic oxidation conversion of biomass-derived compounds to high value-added products has aroused intensive research interest. Herein, we report a Co3O4/Co2MnO4 metal oxide composites catalyst prepared from layered double hydroxides precursors, which is featured with uniformly interdispersed two-phase heterogeneous interface. This sample exhibits an enhanced catalytic performance for the selective reaction 5-hydroxymethylfurfural 2,5-furandicarboxylic acid yield 98%. A combination study...
Interfacial interaction dictates the overall catalytic performance and behavior rules of composite catalyst. However, understanding interfacial active sites at microscopic scale is still limited. Importantly, identifying dynamic action mechanism "real" site interface necessitates nanoscale, high spatial-time-resolved complementary-operando techniques. In this work, a Co3O4 homojunction with well-defined effect developed as model system to explore spatial-correlation response toward oxygen...
Abstract Controllable synthesis of well‐defined supported intermetallic catalysts is desirable because their unique properties in physical chemistry. To accurately pinpoint the evolution such materials at an atomic‐scale, especially clarification initial state under a particular chemical environment, will facilitate rational design and optimal catalysts. The dynamic formation ZnO‐supported PdZn catalyst presented, whereby detailed analyses situ transmission electron microscopy, energy‐loss...
Supported metal catalysts play a pivotal role in the production of fuels and chemicals environmental remediation. However, identification tailoring active sites on these still remain formidable challenge, primarily due to their dynamic nature catalytic reactions. Here, we report simple effective strategy for tuning supported Cu nanoparticles via controllable situ surface restructuring form coordinatively more unsaturated sites, which exhibit 4-fold increase turnover rate high stability, as...
Abstract Strong metal‐support interaction (SMSI) greatly improves the performances of various supported metal nanoparticle catalysts. Classical SMSI relies on oxide species with substoichiometric oxygen concentration, which prefers to retreat off in humid and oxidative atmospheres. A is reported oxygen‐saturated overlayers Au/TiO 2 catalyst achieved by steaming treatment, an opposite condition classical formation. Through a combination experimental theoretical methods, this study...
All the possible types of protopanaxatriol and protopanaxadiol glycosides, major active yet extremely heterogeneous principles ginsengs, could be accessed by present sequence transformations, including global removal sugar residues from crude ginseng extracts stepwise elaboration glycans onto aglycone. In particular, intramolecular hydrogen-bonding neutral conditions have enabled glycosylation highly sterically hindered acid labile dammarane C20-OH.
Au active sites (Au<sup>0</sup>–CO and Au<sup>step</sup>–CO) surrounded by Cu species activate CO molecules at lower temperature. Strong interactions between suppress the adsorption/activation, resulting in dynamic adsorption equilibria higher temperatures.
The optimization of MgO-based adsorbents as advanced CO2 -capture materials is predominantly focused on their molten-salt modification, for which theoretical and experimental contributions provide great insights high performance. underlying mechanism the promotion effect molten salt capture, however, a topic controversy. Herein, characterization techniques, including in situ environmental transmission electron microscopy (eTEM) chemisorption by diffuse-reflectance infrared Fourier transform...
Highly stable and selective Pd-based catalyst was synthesized by covering supported Pd nanoparticles with an N-doped carbon shell for acetylene hydrogenation.
Nitrogen (N)-doped nanocarbons (NDN) as metal-free catalysts have elicited considerable attention toward selective oxidation of alcohols with easily oxidizable groups to aldehydes in the past few years. However, finding a new NDN catalytic material that can meet requirement feasibility on aerobic catalytics for other complicated is big challenge. The real active sites and corresponding mechanisms are still unambiguous because inevitable coexistence diverse edge N species based recently...
The mechanism of palladium nanoparticles (Pd NPs)-catalyzed cross-coupling reactions has been the subject intense debate since recognition catalytic active sites involving a wide array dynamic changed Pd species. Here, through combination hot filtration experiment together with recently developed identical location transmission electron microscopy (IL-TEM) method, delicate structure evolution highly dispersed NPs supported on oxygen-functionalized carbon nanotubes (Pd/oCNTs) as well kinetics...
Atom-by-atom control of a catalyst surface is central yet challenging topic in heterogeneous catalysis, which enables precisely confined adsorption and oriented approach reactant molecules. Here, exposed surfaces with either consecutive Pd trimers (Pd3) or isolated atoms (Pd1) are architected for Pd2Ga intermetallic nanoparticles (NPs) using reactive metal-support interaction (RMSI). At elevated temperatures under hydrogen, situ atomic-scale transmission electron microscopy directly...
Redispersion is an effective method for regeneration of sintered metal-supported catalysts. However, the ambiguous mechanistic understanding hinders delicate controlling active metals at atomic level. Herein, redispersion mechanism atomically dispersed Pt on CeO2 revealed and manipulated by in situ techniques combining well-designed model nanoparticles (NPs) nano-octahedra under reduction oxidation conditions, while redispersed nanocubes above ∼500 °C oxidizing atmosphere. The dynamic...