A5076411026- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- CO2 Reduction Techniques and Catalysts
- Electrochemical Analysis and Applications
- Nanomaterials for catalytic reactions
- Covalent Organic Framework Applications
- Supercapacitor Materials and Fabrication
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Memory and Neural Computing
- Ionic liquids properties and applications
- Advancements in Solid Oxide Fuel Cells
- Luminescence and Fluorescent Materials
- Catalysis and Hydrodesulfurization Studies
- Copper-based nanomaterials and applications
- Carbon dioxide utilization in catalysis
- Conducting polymers and applications
- Ammonia Synthesis and Nitrogen Reduction
- Advancements in Battery Materials
- X-ray Diffraction in Crystallography
- Advanced Thermoelectric Materials and Devices
- Hybrid Renewable Energy Systems
- Crystallization and Solubility Studies
Beijing University of Chemical Technology
2016-2025
Beijing Advanced Sciences and Innovation Center
2018-2025
Composite Components (Czechia)
2025
University of Delaware
2013-2021
Sun Yat-sen University
2010-2021
Tsinghua University
2010-2012
Shenzhen Center for Disease Control and Prevention
2010
Abstract The development of low‐cost, efficient, and stable electrocatalysts for the oxygen reduction reaction (ORR) is desirable but remains a great challenge. Herein, we made highly reactive isolated single‐atom Fe/N‐doped porous carbon (ISA Fe/CN) catalyst with Fe loading up to 2.16 wt %. showed excellent ORR performance half‐wave potential ( E 1/2 ) 0.900 V, which outperformed commercial Pt/C most non‐precious‐metal catalysts reported date. Besides exceptionally high kinetic current...
Electrochemical water splitting is a clean technology that can store the intermittent renewable wind and solar energy in H2 fuels. However, large-scale production greatly hindered by sluggish oxygen evolution reaction (OER) kinetics at anode of electrolyzer. Although many OER electrocatalysts have been developed to negotiate this difficult reaction, substantial progresses design cheap, robust, efficient catalysts are still required considered huge challenge. Herein, we report simple...
The hydrogen oxidation/evolution reactions are two of the most fundamental in distributed renewable electrochemical energy conversion and storage systems. identification reaction descriptor is therefore critical importance for rational catalyst design development. Here we report correlation between activity experimentally measured binding polycrystalline platinum examined several buffer solutions a wide range electrolyte pH from 0 to 13. obtained using rotating disk electrode method found...
Three-dimensional porous crystalline polyimide covalent organic frameworks (termed PI-COFs) have been synthesized. These PI-COFs feature non- or interpenetrated structures that can be obtained by choosing tetrahedral building units of different sizes. Both show high thermal stability (>450 °C) and surface area (up to 2403 m(2) g(-1)). They also loading good release control for drug delivery applications.
Abstract Efficient, durable and inexpensive electrocatalysts that accelerate sluggish oxygen reduction reaction kinetics achieve high-performance are highly desirable. Here we develop a strategy to fabricate catalyst comprised of single iron atomic sites supported on nitrogen, phosphorus sulfur co-doped hollow carbon polyhedron from metal-organic framework@polymer composite. The polymer-based coating facilitates the construction structure via Kirkendall effect electronic modulation an active...
Abstract Atomic interface regulation is thought to be an efficient method adjust the performance of single atom catalysts. Herein, a practical strategy was reported rationally design copper atoms coordinated with both sulfur and nitrogen in metal-organic framework derived hierarchically porous carbon (S-Cu-ISA/SNC). The atomic configuration site S-Cu-ISA/SNC detected unsymmetrically arranged Cu-S 1 N 3 moiety. catalyst exhibits excellent oxygen reduction reaction activity half-wave potential...
Understanding how pH affects the activity of hydrogen oxidation reaction (HOR) and evolution (HER) is key to developing active, stable, affordable HOR/HER catalysts for hydroxide exchange membrane fuel cells electrolyzers. A common linear correlation between binding energy (HBE) observed four supported platinum-group metal (Pt/C, Ir/C, Pd/C, Rh/C) over a broad range (0 13), suggesting that dependence HBE metal-independent. universal current density also on metals, indicating they may share...
Heteroatom-doped Fe-NC catalyst has emerged as one of the most promising candidates to replace noble metal-based catalysts for highly efficient oxygen reduction reaction (ORR). However, delicate controls over their structure parameters optimize catalytic efficiency and molecular-level understandings mechanism are still challenging. Herein, a novel pyrrole-thiophene copolymer pyrolysis strategy synthesize Fe-isolated single atoms on sulfur nitrogen-codoped carbon (Fe-ISA/SNC) with...
The design and synthesis of 3D covalent organic frameworks (COFs) have been considered a challenge, the demonstrated applications COFs so far limited to gas adsorption. Herein we describe two new microporous base-functionalized COFs, termed BF-COF-1 BF-COF-2, by use tetrahedral alkyl amine, 1,3,5,7-tetraaminoadamantane (TAA), combined with 1,3,5-triformylbenzene (TFB) or triformylphloroglucinol (TFP). As catalysts, both BF-COFs showed remarkable conversion (96% for 98% BF-COF-2), high size...
Tungsten-based catalysts are promising candidates to generate hydrogen effectively. In this work, a single-W-atom catalyst supported on metal-organic framework (MOF)-derived N-doped carbon (W-SAC) for efficient electrochemical evolution reaction (HER), with high activity and excellent stability is reported. High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) X-ray absorption fine structure (XAFS) spectroscopy analysis indicate the atomic dispersion of W...
The highly efficient electrochemical hydrogen evolution reaction (HER) provides a promising pathway to resolve energy and environment problems. An electrocatalyst was designed with single Mo atoms (Mo-SAs) supported on N-doped carbon having outstanding HER performance. structure of the catalyst probed by aberration-corrected scanning transmission electron microscopy (AC-STEM) X-ray absorption fine (XAFS) spectroscopy, indicating formation Mo-SAs anchored one nitrogen atom two (Mo1 N1 C2 )....
Novel OER catalysts – monodisperse [email protected]3O4 core-shell nanocrystals have been prepared by synthesizing Au nanocrystals, followed deposition of Co shells and their conversion to Co3O4 shells. Owing the synergistic effect, an activity 7 times as high a mixture or alone, 55 alone. As service our authors readers, this journal provides supporting information supplied authors. Such materials are peer reviewed may be re-organized for online delivery, but not copy-edited typeset....
Abstract The development of a low-cost, high-performance platinum-group-metal-free hydroxide exchange membrane fuel cell is hindered by the lack hydrogen oxidation reaction catalyst at anode. Here we report that composite catalyst, nickel nanoparticles supported on nitrogen-doped carbon nanotubes, has activity similar to platinum-group metals in alkaline electrolyte. Although nanotubes are very poor as support, it increases catalytic performance factor 33 (mass activity) or 21 (exchange...
Abstract The development of low‐cost, efficient, and stable electrocatalysts for the oxygen reduction reaction (ORR) is desirable but remains a great challenge. Herein, we made highly reactive isolated single‐atom Fe/N‐doped porous carbon (ISA Fe/CN) catalyst with Fe loading up to 2.16 wt %. showed excellent ORR performance half‐wave potential ( E 1/2 ) 0.900 V, which outperformed commercial Pt/C most non‐precious‐metal catalysts reported date. Besides exceptionally high kinetic current...
The engineering coordination environment offers great opportunity in performance tunability of isolated metal single-atom catalysts. For the most popular metal–Nx (MNx) structure, replacement N atoms by some other with relatively weak electronegativity has been regarded as a promising strategy for optimizing an active center and promoting its catalytic performance, which is still challenge. Herein, we proposed new synthetic situ phosphatizing triphenylphosphine encapsulated within...
Abstract High-efficiency water electrolysis is the key to sustainable energy. Here we report a highly active and durable RuIrO x ( ≥ 0) nano-netcage catalyst formed during electrochemical testing by in-situ etching remove amphoteric ZnO from RuIrZnO hollow nanobox. The dispersing-etching-holing strategy endowed porous with high exposure of sites as well three-dimensional accessibility for substrate molecules, thereby drastically boosting surface area (ECSA). achieved not only ultralow...
Designing highly active and robust platinum-free catalysts for hydrogen evolution reaction is of vital importance clean energy applications yet challenging. Here we report stable cobalt-substituted ruthenium nanosheets evolution, in which cobalt atoms are isolated lattice as revealed by aberration-corrected high-resolution transmission electron microscopy X-ray absorption fine structure measurement. Impressively, the only need an extremely low overpotential 13 mV to achieve a current density...
We discover that an Sb single atom material consisting of Sb–N<sub>4</sub> moieties anchored on N-doped carbon nanosheets can serve as a CO<sub>2</sub>RR catalyst to produce formate with high efficiency.
Polarization curves of hydrogen oxidation on a Pt disk, electroplated Ni and CoNiMo multimetallic layer.