A5086282531- Catalytic Processes in Materials Science
- CO2 Reduction Techniques and Catalysts
- Catalysis and Oxidation Reactions
- Ionic liquids properties and applications
- Electrocatalysts for Energy Conversion
- Ammonia Synthesis and Nitrogen Reduction
- Catalysts for Methane Reforming
- Mesoporous Materials and Catalysis
- Advanced Photocatalysis Techniques
- Zeolite Catalysis and Synthesis
- Advanced battery technologies research
- Nanocluster Synthesis and Applications
- Carbon dioxide utilization in catalysis
- Adsorption, diffusion, and thermodynamic properties of materials
- Advanced Nanomaterials in Catalysis
- Polyoxometalates: Synthesis and Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Hydrogen Storage and Materials
- Carbon Dioxide Capture Technologies
- Chromium effects and bioremediation
- Covalent Organic Framework Applications
- Catalysis and Hydrodesulfurization Studies
- Adsorption and biosorption for pollutant removal
- Chemical Synthesis and Characterization
- Catalysis for Biomass Conversion
Fudan University
2014-2024
Collaborative Innovation Center of Chemistry for Energy Materials
2016-2020
Northwestern University
2017-2018
Northwestern Polytechnical University
2017
We report single-atom Cu catalysts dispersed on nitrogen-doped carbon by a nitrogen-coordination strategy. The presence of nitrogen enabled good dispersion and attachment atomic species the frameworks with Cu–Nx configurations. doping concentrations configurations were well-tuned pyrolysis temperature. At high concentration 4.9%mol, distance between neighboring was close enough to enable C–C coupling produce C2H4. In contrast, at lower than 2.4%mol, large so that electrocatalyst favored...
Cr adsorption on wood-based powdered activated carbon (WPAC) was characterized by scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS), Raman spectroscopy, and X-ray photoelectron (XPS). The highest Cr(VI) (40.04%) obtained under acidic conditions (pH 3), whereas removal at pH 10 only 0.34%. mechanism of from aqueous solutions WPAC based the reduction to Cr(III) concomitant oxidation C-H C-OH C=O, respectively, surface WPAC, followed adsorption. revealed a...
Abstract The continuous increase of CO 2 concentration in the atmosphere has been imposing an imminent threat for global climate change and environmental hazards. In recent years, electrochemical or photochemical conversion into value‐added chemicals fuels received significant attention, as it may enable attractive means to mitigate atmospheric complete imbalanced carbon‐neutral energy cycle, well create renewable resources human use. Among different electrocatalysts being studied, Cu‐based...
Electroreduction of CO2 to multi-carbon (C2+ ) products is a promising approach for utilization renewable energy, in which the interfacial water quantity critical both C2+ product selectivity and stability Cu-based electrocatalytic sites. Functionalization long-chain alkyl molecules on catalyst surface can help increase its stability, while it also tends block transport water, thus inhibiting formation. Herein, we demonstrate fine tuning by assembly toluene Cu nanosheets, allowing sustained...
The electrochemical CO2 reduction reaction by copper-based catalysts features a promising approach to generate value-added multicarbon (C2+) products. However, due the unfavored formation of oxygenate intermediates on catalyst surface, selectivity C2+ alcohols like ethanol remains unsatisfactory compared that ethylene. bifurcation point (i.e., CH2═CHO* intermediate adsorbed Cu via Cu–O–C linkage) is critical product selectivity, whereas subsequent cleavage Cu–O or O–C bond determines...
Abstract Co, Ni‐based (hydr)oxides with stoichiometric or nonstoichiometric composites are playing significant roles in renewable energy technologies, such as electrocatalytic reactions for transforming earth abundant resources into value‐added chemicals. In the past several years, attributed to development of novel synthesis strategies, characterization techniques, and theoretical calculations, rational design realization a variety exciting performances have been demonstrated. Particularly,...
Abstract Electrochemical CO 2 reduction to produce valuable C products is attractive but still suffers with relatively poor selectivity and stability at high current densities, mainly due the low efficiency in coupling of two *CO intermediates. Herein, it demonstrated that high‐density nitrogen vacancies formed on cubic copper nitrite (Cu 3 N x ) feature as efficient electrocatalytic centers for CO–CO form key OCCO* intermediate toward products. Cu different densities are fabricated by an...
Abstract Rational design of electrocatalysts toward efficient CO 2 electroreduction has the potential to reduce carbon emission and produce value‐added chemicals. In this work, a strategy constructing 2D confined‐space as molecular reactors for enhanced electrocatalytic reduction selectivity is demonstrated. Highly ordered nanosheet lamella assemblies are achieved via weak interaction atomically thin titania nanosheets, variety cationic surfactants, SnO nanoparticles. The interlayer spacings...
Ru cluster-doped, oxygen vacancy-rich CeO<sub>2</sub> (Ru/CeO<sub>2</sub>-V<sub>O</sub>) nanorods were developed as an efficient N<sub>2</sub> reduction electrocatalyst, which beneficial for adsorption and activation.
The electrocatalytic CO2 reduction reaction (CO2RR) has been a fast developing and innovative topic in recent years. It may enable efficient of carbon emission, as well store renewable electricity into chemical bonds fuels or other chemicals. However, due to the complexity factors mechanisms, activity selectivity CO2RR have yet be further optimized order realize commercial applications. Specifically, high products (especially for multi-electron-transfer multicarbon products), lower...
Abstract The ability of Au catalysts to effect the challenging task utilizing molecular oxygen for selective epoxidation cyclooctene is fascinating. Although supported nanometre-size particles are poorly active, here we show that solubilized atomic clusters, present in ng ml −1 concentrations and stabilized by ligands derived from oxidized hydrocarbon products, active. They can be formed various sources. generate initiators propagators trigger onset auto-oxidation reaction with an apparent...
Facing greenhouse effects and the rapid exhaustion of fossil fuel, CO2 electrochemical reduction presents a promising method environmental protection energy transformation. Low onset potential, large current density, high faradaic efficiency (FE), long-time stability are required for industrial production, due to economic costs consumption. This minireview showcases recent progress in catalyst design engineering technology reaction (CO2RR) on copper based-catalysts. We focus strategies...
Abstract Two-dimensional MXene-based materials are potential of presenting unique catalytic performances electrocatalytic reactions. The surface functionalization catalysts is attractive for developing efficient electrocatalysts toward nitrogen reduction reaction. Herein, we reported a Ti 3 C 2 T x MXene with medium density functionalized fluorine terminal groups, as an excellent N reaction electrocatalyst enhanced adsorption and activation . catalyst showed production rate ammonia 2.81 × 10...
The electrocatalytic reduction of carbon monoxide (CO) is an emerging direction with new catalyst structures, among which the bimetallic component catalysts feature both functional diversity and high-density active sites.
Electrochemical CO reduction reaction (CORR) represents a potential approach to generate value-added products. Nonetheless, it is generally challenging for conventional measurements quantify the catalytic surface properties, due geometric blockage and synergistic effect from support. Herein, energy of copper-loaded nitrogen-doped carbon (Cu/NC) was investigated by adsorption with specific functional groups using inverse gas chromatography (IGC). The dispersive component (γSD) acid/base...