A5005354606- CO2 Reduction Techniques and Catalysts
- Ionic liquids properties and applications
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Advanced Thermoelectric Materials and Devices
- Carbon dioxide utilization in catalysis
- Ammonia Synthesis and Nitrogen Reduction
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Machine Learning in Materials Science
- Hydrogen Storage and Materials
- Fuel Cells and Related Materials
- MXene and MAX Phase Materials
- Diamond and Carbon-based Materials Research
- Carbon Nanotubes in Composites
- Catalysis and Hydrodesulfurization Studies
- Metalloenzymes and iron-sulfur proteins
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Advanced Materials Characterization Techniques
- Electronic and Structural Properties of Oxides
- Laser-Matter Interactions and Applications
- Graphene research and applications
- Catalysis and Oxidation Reactions
- Covalent Organic Framework Applications
Tianjin University
2020-2024
Collaborative Innovation Center of Chemical Science and Engineering Tianjin
2020-2021
Beijing University of Chemical Technology
2017-2020
State Key Laboratory of Organic-Inorganic Composite Materials
2018-2019
Due to increasing worldwide fossil fuel consumption, carbon dioxide levels have increased in the atmosphere with increasingly important impacts on environment. Renewable and clean sources of energy been proposed, including wind solar, but they are intermittent require efficient scalable storage technologies. Electrochemical CO2 reduction reaction (CO2RR) provides a valuable approach this area. It combines solar- or wind-generated electrical production chemical bonds carbon-based fuels. can...
Abstract Electrochemical reduction of carbon dioxide (CO 2 ) to fuels and value‐added industrial chemicals is a promising strategy for keeping healthy balance between energy supply net emissions. Here, the facile transformation residual Ni particle catalysts in nanotubes into thermally stable single atoms with possible NiN 3 moiety reported, surrounded porous N‐doped sheath through one‐step nanoconfined pyrolysis strategy. These structural changes are confirmed by X‐ray absorption fine...
Carbon-coated Ni nanoparticles supported on N-doped carbon enable efficient electroreduction of CO<sub>2</sub> to CO comparable single sites.
A comparative study of experimental and theoretical combinatorial high-throughput screening methods for the development novel materials is presented. Both were applied to new anode fuel cell alloy catalysts with improved CO tolerance. Combinatorial electrocatalysis was performed on a 64-element electrode array. Sputter-deposited ternary thin-film electrocatalysts composition PtRuM (M = Co,Ni,W) screened in parallel their methanol oxidation activity, individual geometric specific...
Regulation strategies and mechanistic understandings of first-row transition metal oxide-based oxygen evolution electrocatalysts.
We report ambient electrochemical N2 fixation at low overpotentials by using two-dimensional (2D) β-boron. The metal-free catalyst afforded both an excellent NH3 yield rate and faradaic efficiency, approximately two times higher than those of bulk boron. found that several binding sites, especially involving icosahedral boron in the 2D material, can indeed catalyze reduction efficiently with strong adsorption, thus benefiting initial activation.
The doping of Pd with a small amount Te can selectively convert CO<sub>2</sub> to CO low overpotential.
Electrochemical CO2 reduction (ECR) offers an important pathway for renewable energy storage and fuels production. It still remains a challenge in designing highly selective, energy-efficient, robust, cost-effective electrocatalysts to facilitate this kinetically slow process. Metal-free carbon-based materials have features of low cost, good electrical conductivity, renewability, diverse structure, tunability surface chemistry. In particular, functionalization carbon materials, example by...
Electrochemical CO2 reduction reaction (CO2RR) is an attractive solution to close the anthropogenic carbon cycle and store intermittent renewable energy in value-added chemicals fuels. While Fe nanoparticles are typically employed as catalysts for hydrogen evolution (HER, a competing against CO2RR), herein, efficient electroreduction achieved through tuning their chemical microenvironment. Porous layers were deposited on these nanoparticles, which creates hydrophobic environment enrich local...
Abstract As an energy-intensive industry, the chlor-alkali process has caused numerous environmental issues due to heavy electricity consumption and pollution. Chlor-alkali industry been upgraded from mercury, diaphragm electrolytic cell, ion exchange membrane (IEM) cells. However, several challenges, such as selectivity of anodic reaction, sluggish kinetics alkaline hydrogen evolution, degradation membranes, reasonable design cell structure, remain be addressed. For these reasons, this...
Superior performance over Pt catalysts in oxygen reduction achieved by loading FeCu alloy nanoparticles through hollow carbon shells constructed from MOF materials.
In less than one minute the catalytic activity and selectivity of a single catalyst was measured in combinatorial libraries ternary Rh-Pd-Pt-Cu alloys. Only slightly more two hours were needed to complete library with 136 elements. The elements (ca. 2-4 μg material) are contained two-dimensional array synthesized by thin-film technique. analysis performed scanning mass spectrometer (see picture).
The electrochemical carbon dioxide reduction reaction (CO2RR) is a promising solution to the current environmental and energy issues. Cu only metal catalyst able convert CO2 into high-value-added hydrocarbons. However, catalysts tend degrade with decrease in hydrocarbon selectivity under operation conditions. Herein, we monitored morphological evolution of nanocatalysts correlated changes products during reduction. Initial nanospheres quickly reconstructed nanocubes within 1 h electrolysis...
Developing highly selective and durable catalysts for electrochemical CO2 reduction (ECR) to valuable chemicals is essential curbing emissions into the atmosphere close anthropogenic carbon cycle. Herein, we report facile scalable synthesis of Ni/NC as an efficient low-cost catalyst ECR CO. The electrocatalytic properties can be readily tailored by tuning N configurations fraction single Ni sites in via manipulation precursor annealing conditions. designed thermal treatment a composite...
Abstract Recent progresses have highlighted the enormous potentials of renewable electricities driven carbon dioxide (CO 2 ) electrolysis in achieving neutrality. However, its further industrial application is limited by low liquid product concentrations, which requires energy‐intensive downstream separation processing. Herein we report a CO and methanol co‐electrolysis strategy to produce formate at both electrodes collect highly concentrated zero‐gap electrolyzers. An anion exchange...
Two-dimensional (2D) materials are showing promise in next-generation optoelectronic devices. To this end, large-scale production of defect-free 2D nanosheets is vital. Herein, we demonstrate scalable exfoliation and preparation high-quality PbI2 cyclopentanone. The resulting dispersions can retain good stability over 30 days also sustain freezing treatment. kinetics was observed to fit an apparent pseudo-first-order process. Furthermore, the exhibit excellent saturable absorption properties...