A5039372448- Electrochemical Analysis and Applications
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- CO2 Reduction Techniques and Catalysts
- Catalytic Processes in Materials Science
- Aluminum Alloys Composites Properties
- Spectroscopy and Quantum Chemical Studies
- Microstructure and mechanical properties
- Molecular Junctions and Nanostructures
- Aluminum Alloy Microstructure Properties
- Electrochemical sensors and biosensors
- Ionic liquids properties and applications
- Power Systems Fault Detection
- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Advanced Photocatalysis Techniques
- High-Voltage Power Transmission Systems
- HVDC Systems and Fault Protection
- Ammonia Synthesis and Nitrogen Reduction
- Gold and Silver Nanoparticles Synthesis and Applications
- Conducting polymers and applications
- Electric Vehicles and Infrastructure
- Advanced Chemical Sensor Technologies
- Advanced Battery Technologies Research
Hefei National Center for Physical Sciences at Nanoscale
2016-2025
University of Science and Technology of China
2016-2025
Shanghai Jiao Tong University
2025
Shenzhen University
2025
Beijing Information Science & Technology University
2020-2025
Nanchang University
2019-2025
Guangdong Pharmaceutical University
2025
Second Affiliated Hospital of Nanchang University
2019-2025
Southwest University
2008-2024
Sun Yat-sen University
2012-2024
The electro-oxidation of methanol on a Pt thin film electrode in acidic solution has been investigated by situ surface-enhanced IR absorption spectroscopy. A new peak is observed at around 1320 cm-1 when the potential more positive than 0.5 V, where bulk oxidation MeOH occurs. This assigned to symmetric stretching formate species adsorbed surface. It first observation adsorption during near proportional relationship between intensity band and current observed. reaction scheme via non-CO...
Go with the flow: A novel spectroelectrochemical flow cell well-defined mass transport allows time-resolved electrochemical and in situ FTIR spectroscopy measurements under continuous electrolyte (e.g. during exchange). Its potential for mechanistic kinetic studies was demonstrated on electrooxidation of formic acid. Supporting information this article is available WWW http://www.wiley-vch.de/contents/jc_2002/2006/z502172_s.pdf or from author. Please note: The publisher not responsible...
We present and discuss the results of an in situ IR study on mechanism kinetics formic acid oxidation a Pt film/Si electrode, performed attenuated total reflection (ATR) flow cell configuration under controlled mass transport conditions, which specifically aimed at elucidating role adsorbed bridge-bonded formates this reaction. Potentiodynamic measurements show complex interplay between formation desorption/oxidation COad formate species Faradaic current. The notably faster increase current...
A sensitive nucleic acid detection platform based on superhydrophilic microwells spotted a superhydrophobic substrate is fabricated. Due to the wettability differences, ultratrace DNA molecules are enriched and fluorescent signals amplified allow more detection. The biosensing interface superwettable materials provides simple cost-effective way for sensing. As service our authors readers, this journal supporting information supplied by authors. Such peer reviewed may be re-organized online...
Four methods, including voltammetric measurement of double layer capacitance, surface oxides reduction, under potential deposition Cu and carbon monoxide (CO) stripping have been applied to evaluate the real area a polycrystalline Pd (pc-Pd) electrode. The results reveal that second third methods lead consistent with deviations below 5%. And from determined capacitance CO charge, it is deduced capacity unit 23.1±0.4 μF/cm2 saturated adlayer should be ca. 0.66 ML in order ensure as other two...
Structural control of branched nanocrystals allows tuning two parameters that are critical to their catalytic activity--the surface-to-volume ratio, and the number atomic steps, ledges, kinks on surface. In this work, we have developed a simple synthetic system tailoring numbers branches in Pt by concentration additional HCl. synthesis, HCl plays triple functions structures via oxidative etching: (i) crystallinity seeds nanocrystals; (ii) {111} or {100} faces provided for growth sites; (iii)...
Directional droplet transportation without extra energy input remains a challenge in microfluidic biochips for clinical detections. Herein, inspired by the water-collecting behaviors on cactus spine, we fabricate nanomaterial-based superwettable microspine (SMS) chips. The bioinspired SMS chips are capable of spontaneous and directional synergistically combining geometric asymmetry surface superhydrophilicity. Based theoretical models, gradient Laplace pressure arising from chip can dominate...
ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTImportance of Solvation for the Accurate Prediction Oxygen Reduction Activities Pt-Based ElectrocatalystsZheng-Da He†‡, Selwyn Hanselman†, Yan-Xia Chen‡, Marc T. M. Koper*†, and Federico Calle-Vallejo*†View Author Information† Leiden Institute Chemistry, University, P.O. Box 9502, 2300 RA Leiden, The Netherlands‡ Hefei National Laboratory Physical Science at Microscale Department Chemical Physics, University Technology China, Hefei, Anhui 230026,...
The poor stability and low catalytic activity of NH2-UiO-66 in basic solutions require the reactions to be conducted acidic solutions, which seriously hinders its potential photocatalytic application. Herein, we report that coated with two-dimensional covalent organic frameworks (COFs) via imine bond connection presents not only high but also adaptability solution environment. NH2-UiO-66/COF hybrid material was fabricated through Schiff base reaction...
PdCu alloy flower-like nanocages are synthesized through corner-etched Cu2O octahedra as templates by galvanic reaction and disproportionation reaction. obtained with the molar ratio of H2PdCl4/Cu2O = 1:1, Pd nanoparticles prepared 2:1. The display highest catalytic activity compared toward methanol oxidation in alkaline medium, which is 2.7 times than that commercial Pd/C. In addition, also show high poison-tolerance good stability. superior electrocatalytic performance may be attributed to...
Abstract Although atomically precise metal nanoclusters (NCs) are widely used in catalysis, a wide gap exists between state‐of‐the‐art performance and practical requirements. Regulating the intrinsic activity of NCs is critical for rational design synthesis highly efficient catalysts. Herein, M 4 Ni 2 (M = Au, Ag) with improved electrocatalytic nitrogen reduction reaction (NRR) due to introduction synthesized, which significantly suppresses H generation competition reaction. Ag exhibit best...
Ultrathin electrolytic copper foils with a thickness of 6 μm were prepared by test machine using sulfate electrolyte gelatin, hydroxyethyl cellulose (HEC), and sulfonic acid-containing organics as additives. The effects four organic additives, sodium 3-mercaptopropanesulfonate (MPS), bis-(sodium sulfopropyl)-disulfide (SPS), 3-[[(dimethylamino)thioxomethyl]thio]propanesulfonate (DPS), 3-((4,5-dihydrothiazol-2-yl)thio)propane-1-sulfonate (TPS), on the physical property investigated. results...
Understanding how the electrolyte pH affects electrocatalytic activity is a topic of crucial importance in large variety systems. However, unraveling origin effects complicated often by fact that both reaction driving forces and reactant concentrations electric double layer (EDL) change simultaneously with value. Herein, we employ hydrogen evolution (HER) at Au(111)-aqueous solution interfaces as model system to disentangle different pH-dependent factors. In 0.1 M NaOH, HER current density...
We develop a comprehensive semiclassical continuum theory of electronic response and structured solvents at electrified metal-solution interfaces. The approach combines an orbital-free density-functional electrons on the metal side with statistical field electrolyte solution within grand canonical framework. resulting potential entire electrical double layer (EDL) is hybrid functional particle density, including classical particles, electric potential, solvent polarization, referred to as...
The potential of in-situ Fourier transform infrared (FTIR) spectroscopy measurements in an attenuated total reflection configuration (ATR-FTIRS) for the evaluation reaction pathways, elementary steps, and their kinetics is demonstrated formic acid electrooxidation on a Pt film electrode. Quantitative kinetic information two dehydration CO(ad) oxidation, contributions related pathways dual path mechanism are derived from IR spectroscopic signals simultaneous electrochemical ATR-FTIRS over...