A5100331020- Advanced Photocatalysis Techniques
- CO2 Reduction Techniques and Catalysts
- Catalytic Processes in Materials Science
- Electrocatalysts for Energy Conversion
- Ionic liquids properties and applications
- Electrochemical Analysis and Applications
- Advanced battery technologies research
- Gas Sensing Nanomaterials and Sensors
- Nanomaterials for catalytic reactions
- Advanced Thermoelectric Materials and Devices
- Mesoporous Materials and Catalysis
- Advanced biosensing and bioanalysis techniques
- Advanced oxidation water treatment
- Catalysis and Oxidation Reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced ceramic materials synthesis
- Ammonia Synthesis and Nitrogen Reduction
- Graphene research and applications
- Analytical chemistry methods development
- Catalysis and Hydrodesulfurization Studies
- Covalent Organic Framework Applications
- Adsorption and biosorption for pollutant removal
- Analytical Chemistry and Chromatography
- Luminescence Properties of Advanced Materials
- Supercapacitor Materials and Fabrication
Qinhuangdao Science and Technology Bureau
2023
University of Science and Technology Beijing
2022-2023
Nuclear Science and Technology Research Institute
2023
Aalto University
2023
Atomic Energy Organization of Iran
2023
Guangzhou University
2023
Kunming University of Science and Technology
2023
Hunan University
2020-2022
Lawrence Berkeley National Laboratory
2022
SLAC National Accelerator Laboratory
2022
Electrocatalysis is central to the production of renewable fuels and high-value commodity chemicals. The electrolyte electrode together determine catalytic properties liquid/solid interface. In particular, cations can greatly change rates reaction selectivity many electrocatalytic processes. For this reason, careful choice cation an essential step in design interfaces with high for desired products. To make such a judicious choice, it critical understand where electric double layer reside...
The ability of copper to catalyze the electrochemical reduction CO2 has been shown greatly depend on its nanoscale surface morphology. While previous studies found evidence irreversible changes nanoparticle and thin film electrodes following electrolysis, we present here first observation reversible reconstruction electrocatalytic surfaces induced by adsorbed CO intermediate. Using attenuated total internal reflection infrared surface-enhanced Raman spectroscopies, formation metal clusters...
Abstract Electrochemical reduction of CO 2 into value‐added chemicals or fuels, driven by renewable energy, presents a promising solution to depletion fossil fuels and greenhouse effects caused excessive carbon emissions. In the past few years, great efforts have been dedicated promote research in this field. Herein, review focuses on recent advances underlying mechanistic studies novel heterogeneous catalyst constructions for electrochemical aqueous media, targeting at presenting full...
Significance Many technologically interesting electrocatalytic reactions lead to a variety of products; that is, they exhibit poor product selectivity. Examples include the oxidations ammonia and methane reductions nitrogen carbon dioxide. The selectivity hinders adoption these promising technologies. Improving requires molecular-level understanding factors control reaction processes. Herein, we investigated how liquid environment impacts reduction CO ethylene, prototypical process for...
Abstract Semiconductor photocatalysis technology has aroused great interest in photocatalytic degradation, but it suffers from the drawbacks of fast electron‐hole recombination and unsatisfactory degradation efficiency. Herein, a novel photocatalyst Ag 3 PO 4 @NC with excellent activity is successfully prepared, characterized, evaluated for efficient removal organic pollutants. After visible light irradiation 5, 8, 12 min, efficiency norfloxacin, diclofenac, phenol on composite catalyst...
The in situ IR and Raman spectroscopy measurements were conducted to investigate lead poisoning on the CeO2—WO3 catalysts. deactivation mechanisms studied with respect changes of surface acidity, redox property, nitrate/nitrite adsorption behaviors, key active sites (note that results structure–activity relationship based our previous research). (1) Lewis acid originated from CeO2 crystalline WO3, whereas Brønsted Ce2(WO4)3. poisoned catalysts exhibited a lower acidity than fresh catalysts:...
Metal electrodes with rough surfaces are often found to convert CO or CO2 hydrocarbons and oxygenates high selectivity at reaction rates in comparison their smooth counterparts. The atomic-level morphology of a electrode is likely one key factor responsible for its comparatively catalytic activity. However, few methods capable probing the structure metal under electrocatalytic conditions. As result, nuances surface that control characteristics these have remained largely unexplored. Because...
ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTADDITION / CORRECTIONThis article has been corrected. View the notice.Surface-Adsorbed CO as an Infrared Probe of Electrocatalytic InterfacesCharuni M. GunathungeCharuni GunathungeDepartment Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United StatesMore by Charuni Gunathungehttp://orcid.org/0000-0003-1485-2469, Jingyi LiJingyi LiDepartment Lihttp://orcid.org/0000-0002-3580-7803, Xiang LiXiang...
The inertness of the C-H bond in CH4 poses significant challenges to selective oxidation, which often proceeds all way CO2 once activated. Selective oxidation high-value industrial chemicals such as CO or CH3OH remains a challenge. Presently, main methods activate include thermochemical, electrochemical, and photocatalytic reactions. Of them, reactions hold great promise for practical applications but have been poorly studied. Existing demonstrations exhibit limited control over product...
Guided by computational Pourbaix screening and high-throughput experiments aimed at the development of precious-metal-free fuel cells, we investigate rutile CoSb2O6 as an electrocatalyst for oxygen reduction in 1 M sulfuric acid. Following 4 h catalyst conditioning 0.7 V vs RHE, operation this potential 20 yielded average current density −0.17 mA cm–2 with corrosion a rate 0.04 nm hour–1 that is stoichiometric composition. Surface analysis (111) surface identified partial H coverage under...
The preparation of dual-atom catalysts (DACs) with unique capabilities requires in-depth microscopic theory for support. More precise electronic structure tuning leads to more accurate control over the adsorption active...
Fe@C yolk–shell particles were synthesized by reducing the core with its own carbon shell to achieve effective removal of 4-chlorophenol from water.
Abstract A novel green hydrophilic levofloxacin imprinted polymer was presented via one‐step polymerization in water using ionic liquid 1,6‐hexa‐3,3′‐bis‐1‐vinylimidazolium bromine with multiple groups and 2‐hydroxyethyl methacrylate as a co‐functional monomer. Adsorption experiment revealed that the significantly improved compatible of polymer, excellent recognition molecularly for corresponds to synergetic effect H‐bonding electrostatic π–π interactions between Furthermore, adsorption...
Transparent polymeric films have been successfully integrated with self-healing capabilities. However, these can only heal damages in the scale of several to tens micrometers, thereby greatly limiting their practical applications. The present study reports fabrication transparent capable healing millimeter-scale cuts by incorporating hydrogen-bonding units into zwitterionic polymer films, which are cross-linked electrostatic interactions. intermolecular interactions resulting reduced when...
Electrocatalytic Cu is key to the development of processes that can convert CO and CO2 hydrocarbons, nitrate ammonia. The hydrogen evolution reaction (HER) often competes with these processes. Few studies studied this on under alkaline conditions. Herein, we examined HER electrodes conditions in Na+- Cs+-containing electrolytes. We found 0.1 M solutions NaOH CsOH highest commercially available purity grades, trace impurities iron deposit electrode during electrolysis. As a result, rate...
Abstract Copper‐based (Cu‐based) catalysts can efficiently convert carbon dioxide to multicarbon products by electrochemical reduction. In this paper, the electrocatalyst with coexistence of three valence states Cu(0)‐Cu(I)‐Cu(II) was successfully prepared adjusting experimental conditions. The catalyst derived from Cu/Cu 2 O on cloth and exhibited excellent CO reduction performance. For carbon‐gaseous products, Faradaic efficiencies for Cu‐2 consisting were 35.45±3.40 % at −1.66 V vs. RHE,...
Micropatterns of the nanostructured aluminum oxide (NAO) with sizes from 5 to 200 μm have been successfully fabricated on indium tin (ITO) glass substrate by simply combining a lift-off process and one-step anodization for first time. The detection fluorescent dyes biomolecules tagged NAO has investigated demonstrated successfully. Experiments reveal that micropatterned substrates can increase fluorescence signals up 2 or 3 orders magnitude compared substrate, suggesting possibility...
This work demonstrates a luminescent chemosensor based on silica cross-linked micellar nanoparticles (SCMNPs) designed by encapsulating phenothiazine-derived Schiff base, (4E)-4-((10-dodecyl-10H-phenothiazin-7-yl)methyleneamino)-1,2-dihydro-1,5-dimethyl-2-phenylpyrazol-3-one (EDDP), for the selective detection of Fe3+. The encapsulation EDDP inside SCMNPs (EDDP-SCMNPs) can avoid metal (Fe3+/Fe2+)-promoted hydrolysis and, thus, exhibit highly determination electron transfer (ET) from in core...