A5069546592- Catalytic Processes in Materials Science
- Electrocatalysts for Energy Conversion
- Nanomaterials for catalytic reactions
- Catalysis and Oxidation Reactions
- Fuel Cells and Related Materials
- Fusion materials and technologies
- Advanced materials and composites
- Advanced battery technologies research
- CO2 Reduction Techniques and Catalysts
- Advanced Photocatalysis Techniques
- Nanocluster Synthesis and Applications
- Ferroelectric and Piezoelectric Materials
- Catalysts for Methane Reforming
- Multiferroics and related materials
- Metal and Thin Film Mechanics
- Zeolite Catalysis and Synthesis
- Catalysis and Hydrodesulfurization Studies
- Carbon dioxide utilization in catalysis
- Nuclear Materials and Properties
- Aluminum Alloys Composites Properties
- Catalysis for Biomass Conversion
- Mesoporous Materials and Catalysis
- Metal-Organic Frameworks: Synthesis and Applications
- Copper-based nanomaterials and applications
- Ammonia Synthesis and Nitrogen Reduction
Institute of Advanced Science Facilities, Shenzhen
2024
Guangdong Academy of Sciences
2021-2023
Dalian Institute of Chemical Physics
2012-2021
Chinese Academy of Sciences
2012-2021
Shanghai Institute of Applied Physics
2018-2021
Jiangxi University of Science and Technology
2021
University of Chinese Academy of Sciences
2018-2020
Shanghai Synchrotron Radiation Facility
2019-2020
State Key Laboratory of Catalysis
2018-2020
JEOL (China)
2020
The Fenton-like process presents one of the most promising strategies to generate reactive oxygen-containing radicals deal with ever-growing environmental pollution. However, developing improved catalysts adequate activity and stability is still a long-term goal for practical application. Herein, we demonstrate single cobalt atoms anchored on porous N-doped graphene dual reaction sites as highly stable efficient catalytic oxidation recalcitrant organics via activation peroxymonosulfate...
Although considerable progress has been made in direct synthesis gas (syngas) conversion to light olefins (C2(=)-C4(=)) via Fischer-Tropsch (FTS), the wide product distribution remains a challenge, with theoretical limit of only 58% for C2-C4 hydrocarbons. We present process that reaches C2(=)-C4(=) selectivity as high 80% and 94% at carbon monoxide (CO) 17%. This is enabled by bifunctional catalyst affording two types active sites complementary properties. The partially reduced oxide...
Size effect has been regularly utilized to tune the catalytic activity and selectivity of metal nanoparticles (NPs). Yet, there is a lack understanding size in electrocatalytic reduction CO2, an important reaction that couples with intermittent renewable energy storage carbon cycle utilization. We report here prominent size-dependent activity/selectivity CO2 over differently sized Pd NPs, ranging from 2.4 10.3 nm. The Faradaic efficiency for CO production varies 5.8% at −0.89 V (vs...
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...
The electrochemical reduction of N
Coordinatively unsaturated Ni–N active sites facilitate CO<sub>2</sub>electroreduction and inhibit the competitive hydrogen evolution reaction, demonstrating selective high-rate CO<sub>2</sub>electroreduction.
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.
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...
Ultra-small metal clusters have attracted great attention owing to their superior catalytic performance and extensive application in heterogeneous catalysis. However, the synthesis of high-density is very challenging due facile aggregation. Herein, one-step pyrolysis was used synthesize ultra-small single-atom Fe sites embedded graphitic carbon nitride with high density (iron loading up 18.2 wt %), evidenced by high-angle annular dark field-scanning transmission electron microscopy, X-ray...
Abstract Two Pt single‐atom catalysts (SACs) of Pt‐GDY1 and Pt‐GDY2 were prepared on graphdiyne (GDY)supports. The isolated atoms are dispersed GDY through the coordination interactions between alkynyl C in GDY, with formation five‐coordinated 1 ‐Pt‐Cl 4 species four‐coordinated 2 Pt‐GDY2. shows exceptionally high catalytic activity for hydrogen evolution reaction (HER), a mass up to 3.3 26.9 times more active than state‐of‐the‐art commercial Pt/C catalysts, respectively. possesses higher...
Conversion of CO2 to value-added chemicals has been a long-standing objective, and direct hydrogenation lower olefins is highly desirable but still challenging. Herein, we report selective conversion through over ZnZrO/SAPO tandem catalyst fabricated with ZnO-ZrO2 solid solution Zn-modified SAPO-34 zeolite, which can achieve selectivity for as high 80–90% among hydrocarbon products. This realized on the basis dual functions catalyst: production SAPO zeolite. The thermodynamic kinetic...
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)...
Establishing highly effective charge transfer channels in carbon nitride (C3 N4 ) for enhancing its photocatalytic activity is still a challenging issue. Herein, the first time, engineering of C3 layers with single-atom Cu bonded compositional N (CuNx demonstrated to address this challenge. The CuNx formed by intercalation chlorophyll sodium copper salt into melamine-based supramolecular precursor followed controlled pyrolysis. Two groups are identified: one group each atoms three in-plane...
High-density coordination unsaturated copper(<sc>i</sc>)–nitrogen embedded in graphene demonstrates a high performance and stability primary zinc–air batteries with ultralow catalyst loading.
In heterogeneous catalysis, supports play a crucial role in modulating the geometric and electronic structure of active metal phase for optimizing catalytic performance. A γ-Al2O3 nanosheet that contains 27% pentacoordinate Al(3+) sites can nicely disperse stabilize raft-like Pt-Sn clusters as result strong interactions between support. Consequently, there are Pt Sn atoms, resulting an increase electron density sites. When used propane dehydrogenation reaction, this catalyst displayed...
Heterogeneous single-atom catalyst (SAC) opens a unique entry to establishing structure-performance relationship at the molecular level similar that in homogeneous catalysis. The challenge lies manipulating coordination chemistry of single atoms without changing dispersion. Here, we develop an efficient synthetic method for SACs by using ethanediamine chelate Pt cations and then removing rapid thermal treatment (RTT) inert atmosphere. on Fe2O3 support is finely tuned merely adjusting RTT...
Plasmonic photocatalysis, stemming from the effective light absorbance and confinement of surface plasmons, provides a pathway to enhance solar energy conversion. Although plasmonic hot electrons in water reduction have been extensively studied, exactly how holes participate splitting reaction has not yet well understood. In particular, where oxidation is still illusive. Herein, taking Au/TiO2 as photocatalyst prototype, we investigated involved oxidation. The sites are positioned by...