A5100725066- Catalytic Processes in Materials Science
- Catalysis for Biomass Conversion
- Catalysis and Hydrodesulfurization Studies
- Catalysis and Oxidation Reactions
- Nanomaterials for catalytic reactions
- Catalysts for Methane Reforming
- Electrocatalysts for Energy Conversion
- Mesoporous Materials and Catalysis
- Biofuel production and bioconversion
- Lignin and Wood Chemistry
- Asymmetric Hydrogenation and Catalysis
- Advanced Photocatalysis Techniques
- Ammonia Synthesis and Nitrogen Reduction
- Supercapacitor Materials and Fabrication
- Carbon dioxide utilization in catalysis
- Industrial Gas Emission Control
- Zeolite Catalysis and Synthesis
- Nanocluster Synthesis and Applications
- Aerogels and thermal insulation
- Copper-based nanomaterials and applications
- Phase Equilibria and Thermodynamics
- Polyoxometalates: Synthesis and Applications
- Oxidative Organic Chemistry Reactions
- Layered Double Hydroxides Synthesis and Applications
- Organometallic Complex Synthesis and Catalysis
Dalian Institute of Chemical Physics
2016-2025
Chinese Academy of Sciences
2016-2025
Collaborative Innovation Center of Chemistry for Energy Materials
2016-2025
Institute of Catalysis and Petrochemistry
2015-2025
First Affiliated Hospital of Bengbu Medical College
2024
University of Chinese Academy of Sciences
2009-2023
Dalian National Laboratory for Clean Energy
2018-2023
Lanzhou Institute of Chemical Physics
2022
Dalian University
2014-2021
State Key Laboratory of Catalysis
2015-2020
Supported metal nanostructures are the most widely used type of heterogeneous catalyst in industrial processes. The size particles is a key factor determining performance such catalysts. In particular, because low-coordinated atoms often function as catalytically active sites, specific activity per atom usually increases with decreasing particles. However, surface free energy metals significantly particle size, promoting aggregation small clusters. Using an appropriate support material that...
High specific activity and cost effectiveness of single-atom catalysts hold practical value for water gas shift (WGS) reaction toward hydrogen energy. We reported the preparation characterization Ir single atoms supported on FeO(x) (Ir1/FeO(x)) catalysts, which is 1 order magnitude higher than its cluster or nanoparticle counterparts even those most active Au- Pt-based catalysts. Extensive studies reveal that accounted ∼70% total containing atoms, subnano clusters, nanoparticles, thus...
Nanostructured Fe–N–C materials represent a new type of "platinum-like" non-noble-metal catalyst for various electrochemical reactions and organic transformations. However, no consensus has been reached on the active sites catalysts because their heterogeneity in particle size composition. In this contribution, we have successfully prepared atomically dispersed catalyst, which exhibited high activity excellent reusability selective oxidation C–H bond. A wide scope substrates, including...
Nickel saves dimes: The expense of using precious-metal catalysts is avoided in the high-yielding conversion cellulose to ethylene glycol (see picture; AC=activated carbon). This process occurs up 29 % yield over a tungsten carbide catalyst, and 61 when catalyst promoted with small amount nickel. An attractive feature this reaction low yields other polyols respect glycol. Cellulose, most abundant source biomass, currently regarded as promising alternative for fossil fuels it cannot be...
Single-atom metal catalysts offer a promising way to utilize precious noble elements more effectively, provided that they are catalytically active and sufficiently stable. Herein, we report synthetic strategy for Pt single-atom with outstanding stability in several reactions under demanding conditions. The atoms firmly anchored the internal surface of mesoporous Al2O3, likely stabilized by coordinatively unsaturated pentahedral Al3+ centres. catalyst keeps its structural integrity excellent...
The single-atom Co–N–C catalyst with the structure of CoN<sub>4</sub>C<sub>8</sub>-1-2O<sub>2</sub> shows excellent performance for chemoselective hydrogenation nitroarenes to produce azo compounds under mild reaction conditions.
Semihydrogenation of acetylene in an ethylene-rich stream is industrially important process. Conventional supported monometallic Pd catalysts offer high conversion, but they suffer from very low selectivity to ethylene due overhydrogenation and the formation carbonaceous deposits. Herein, a series Ag alloyed single-atom catalysts, possessing only ppm levels Pd, on silica gel were prepared by simple incipient wetness coimpregnation method applied selective hydrogenation under conditions close...
Surface-supported isolated atoms in single-atom catalysts (SACs) are usually stabilized by diverse defects. The fabrication of high-metal-loading and thermally stable SACs remains a formidable challenge due to the difficulty creating high densities underpinning Here we report that Pt can be through strong covalent metal-support interaction (CMSI) is not associated with support defects, yielding high-loading SAC trapping either already deposited or PtO2 units vaporized from nanoparticles...
Porous carbon monoliths with defined multilength scale pore structures, a nitrogen-containing framework, and high mechanical strength were synthesized through self-assembly of poly(benzoxazine-co-resol) carbonization process. Importantly, this synthesis can be easily scaled up to prepare identical structures. By controlling the reaction conditions, porous exhibit fully interconnected macroporosity mesoporosity cubic Im3m symmetry withstand press pressure 15.6 MPa. The use amines in results...
Abstract Homogeneous catalysts generally possess superior catalytic performance compared to heterogeneous catalysts. However, the issue of catalyst separation and recycling severely limits their use in practical applications. Single‐atom have advantages both homogeneous catalysts, such as “isolated sites”, stability reusability, thus would be a promising alternative traditional In hydroformylation olefins, single‐atom Rh supported on ZnO nanowires demonstrate similar efficiency (TON≈40000)...
Selective hydrogenation of acetylene to ethylene is an industrially important reaction. Pd-based catalysts have been proved be efficient for the conversion, while enhancing selectivity challenging. Here, we chose Cu as partner Pd, fabricated alloyed Pd single-atom catalyst (SAC), and investigated its catalytic performance selective under a simulated front-end process in industry: that is, with high concentration hydrogen ethylene. The Cu-alloyed SAC showed ∼85% 100% elimination. In...
Preferential oxidation of CO (PROX) is an important reaction for removing small amounts to a parts-per-million level from the hydrogen-rich stream, which will be ultimately supplied as fuel polymer–electrolyte membrane cells. The key application PROX develop highly active and selective catalyst that operates well in wide temperature window (e.g., 80–180 °C) has good resistance CO2 steam. In past decades, various formulations have been developed, among platinum group metal catalysts,...
Preferential oxidation of CO (PROX) in H2-rich stream is critical to the production clean H2 for H2-based fuel cells, which provide and efficient energy conversion. Development highly active selective PROX catalysts desirable but proved be extremely challenging. Here we report that CeO2-supported Au single atoms (Au1/CeO2) are active, selective, stable at PEMFC working temperature (∼80 °C) with >99.5% conversion over a wide window, 70–120 °C (or 50–100 °C, depending on loading). The high...
Restructuring is ubiquitous in thermocatalysis and of pivotal importance to identify the real active site, yet it less explored electrocatalysis. Herein, by using operando X-ray absorption spectroscopy conjunction with advanced electron microscopy, we reveal restructuring as-synthesized Cu-N4 single-atom site nanoparticles ∼5 nm during electrochemical reduction nitrate ammonia, a green ammonia production route upon combined plasma-assisted oxidation nitrogen. The Cu2+ Cu+ Cu0 subsequent...
Using raw lignocellulosic biomass as feedstock for sustainable production of chemicals is great significance. Herein, we report the direct catalytic conversion woody into two groups over a carbon supported Ni-W2C catalyst. The carbohydrate fraction in biomass, i.e., cellulose and hemicellulose, were converted to ethylene glycol other diols with total yield up 75.6% (based on amount & hemicellulose), while lignin component was selectively monophenols 46.5% lignin). It found that chemical...
Intermetallic alloying of one active metal to another inert provides not only the improved dispersion centers but also a unique and homogeneous ensemble sites, thus offering new opportunities in variety reactions. Herein, we report that PdZn intermetallic nanostructure with Pd–Zn–Pd ensembles are both highly selective for semihydrogenation acetylene ethylene, which is usually inaccessible due sequential hydrogenation ethane. Microcalorimetric measurements density functional theory...