A5100669509- Catalytic Processes in Materials Science
- Electrocatalysts for Energy Conversion
- Copper-based nanomaterials and applications
- Advanced Photocatalysis Techniques
- Nanomaterials for catalytic reactions
- Catalysis and Oxidation Reactions
- ZnO doping and properties
- Advanced biosensing and bioanalysis techniques
- Graphene research and applications
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Advanced Sensor and Energy Harvesting Materials
- Advanced Nanomaterials in Catalysis
- CO2 Reduction Techniques and Catalysts
- Supercapacitor Materials and Fabrication
- Catalysts for Methane Reforming
- Advanced Chemical Physics Studies
- TiO2 Photocatalysis and Solar Cells
- Advancements in Battery Materials
- Quantum Dots Synthesis And Properties
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Catalysis and Hydrodesulfurization Studies
- Conducting polymers and applications
- Ammonia Synthesis and Nitrogen Reduction
ShanghaiTech University
2020-2025
Institute of Catalysis and Petrochemistry
2025
State Key Laboratory of Catalysis
2025
Dalian Institute of Chemical Physics
2016-2025
Chinese Academy of Sciences
2016-2025
Dalian University
2014-2025
Shanghai Institute of Technical Physics
2025
University of Illinois Urbana-Champaign
2025
Dalian University of Technology
2025
Central South University
2025
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...
Novel non-precious-metal catalysts encapsulated in N-doped carbon nanotubes exhibit high activity and remarkable stability towards hydrogen evolution reaction (HER) acidic medium.
Coordinatively unsaturated (CUS) iron sites are highly active in catalytic oxidation reactions; however, maintaining the CUS structure of during heterogeneous reactions is a great challenge. Here, we report strategy to stabilize single-atom by embedding dispersed FeN4 centers graphene matrix. The atomic was revealed for first time combining high-resolution transmission electron microscopy/high-angle annular dark-field scanning microscopy with low-temperature tunneling microscopy. These...
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 electrochemical CO2 reduction reaction (CO2RR) typically uses transition metals as the catalysts. To improve efficiency, tremendous efforts have been dedicated to tuning morphology, size, and structure of metal catalysts employing electrolytes that enhance adsorption CO2. We report here a strategy CO2RR by constructing metal–oxide interface. demonstrate Au–CeOx shows much higher activity Faradaic efficiency than Au or CeOx alone for CO2RR. In situ scanning tunneling microscopy...
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.
Activated carbons with promising performance in capacitors are produced from fungi via a hydrothermal assistant pyrolysis approach. This study introduces facile strategy to discover carbonaceous materials and triggers interest exploring for material science applicatons. Detailed facts of importance specialist readers published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by the authors. Please note: The publisher is...
Abstract Catalysis, as a key and enabling technology, plays an increasingly important role in fields ranging from energy, environment agriculture to health care. Rational design synthesis of highly efficient catalysts has become the ultimate goal catalysis research. Thanks rapid development nanoscience nanotechnology, particular theoretical understanding tuning electronic structure nanoscale systems, this element is becoming possible via precise control nanoparticles’ composition,...
CeO takes charge: Ceria grows forming small islands on terraces (2–5 nm, CeOx-I) and large steps of a copper substrate (30–50 CeOx-II; see scheme; 100×100 nm2). The resulting CeOx/Cu(111) systems display an extraordinary water-gas shift activity illustrate the role that oxide can play in improving performance copper-based catalysts. Detailed facts importance to specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They...
A Cu(111) surface displays a low activity for the oxidation of carbon monoxide (2CO + O(2) → 2CO(2)). Depending on temperature, background pressure O(2), and exposure time, one can get chemisorbed O or layer Cu(2)O that may be deficient in oxygen. The addition ceria nanoparticles (NPs) to substantially enhances interactions with molecule facilitates copper substrate. In images scanning tunneling microscopy, NPs exhibit two overlapping honeycomb-type moiré structures, larger ones (H(1))...
Heterogeneous catalysts, often consisting of metal nanoparticles supported on high-surface-area oxide solids, are common in industrial chemical reactions. Researchers have increasingly recognized the importance oxides heterogeneous catalysts: that they not just a support to help dispersion nanoparticles, but rather interact with and affect catalysis. The critical role catalytic reactions can become very prominent when cover surfaces forming inverse catalysts. source activity homogeneous...
Pyrolysis is indispensable for synthesizing highly active Fe–N–C catalysts the oxygen reduction reaction (ORR) in acid, but how Fe, N, and C precursors transform to ORR-active sites during pyrolysis remains unclear. This knowledge gap obscures connections between input output products, clouding pathway toward catalyst improvement. Herein, we unravel evolution of comprised exclusively single-atom Fe1(II)–N4 via in-temperature X-ray absorption spectroscopy. The Fe precursor transforms oxides...
Employing an alternative of the Pt-based electrocatalysts for oxygen reduction reaction (ORR) has become a major interest in fundamental research polymer electrolyte membrane fuel cells (PEMFCs). The carbon-encapsulated metal catalyst, on which O2 is readily activated by electrons transferred from to carbon surface, recently been demonstrated as promising strategy produce robust non-precious electrocatalysts. However, thickness walls might affect process electron transfer, and subsequently...
Abstract MXene, an emerging family of 2D transition metal carbides/nitride (MXene) materials, has attracted growing attention since its initial discovery in 2011. Owing to their extraordinary electrical conductivity, high mechanical stability, various functional groups, and large interlayer space, MXene MXene‐based nanomaterials have shown significant energy‐storage capability. Firstly, research progress on the preparation strategies properties are summarized. Secondly, current...
Copper-based materials can reliably convert carbon dioxide into multi-carbon products but they suffer from poor activity and product selectivity. The atomic structure-activity relationship of electrocatalysts for the selectivity is controversial due to lacking systemic multiple dimensions operando condition study. Herein, we synthesized high-performance CO2RR catalyst comprising CuO clusters supported on N-doped nanosheets, which exhibited high C2+ Faradaic efficiency 73% including decent...
The enhancement of Pt nanoparticle anchoring strength and dispersion on carbon supports is highly desirable in polymer electrolyte membrane fuel cells (PEMFCs) as well other catalysis processes. Presented here a comprehensive study the interaction between catalyst nanoparticles terms electronic structure change its effects electrocatalytic performance supported catalysts. Graphene was chosen an ideal model support because unique 2-D allows direct investigation with metal at their interface....
Abstract A main obstacle in the rational development of heterogeneous catalysts is difficulty identifying active sites. Here we show metal/oxide interfacial sites are highly for oxidation benzyl alcohol and other industrially important primary alcohols on a range metals oxides combinations. Scanning tunnelling microscopy together with density functional theory calculations FeO/Pt(111) reveals that enriches preferentially at oxygen-terminated interface undergoes readily O–H C–H dissociations...
Development of platinum group metal (PGM)-free and iron-free catalysts for the kinetically sluggish oxygen reduction reaction (ORR) is crucial proton-exchange membrane fuel cells. A major challenge their insufficient performance durability in electrode assembly (MEA) under practical hydrogen-air conditions. Herein, we report an effective strategy to synthesize atomically dispersed Mn–N–C from environmentally benign aqueous solution, instead traditional organic solvents. This innovative...
The electrochemical CO2 reduction reaction (CO2 RR) over Cu-based catalysts shows great potential for converting into multicarbon (C2+ ) fuels and chemicals. Herein, we introduce an A2 M2 O7 structure a catalyst through solid-state synthesis method. Cu2 P2 is electrochemically reduced to metallic Cu with significant evolution from grain aggregates highly porous under RR conditions. reconstructed achieves Faradaic efficiency of 73.6 % C2+ products at applied current density 350 mA cm-2 ,...