A5002143245- Electrocatalysts for Energy Conversion
- Catalytic Processes in Materials Science
- Advancements in Battery Materials
- Advanced Photocatalysis Techniques
- Advanced battery technologies research
- Catalysis and Oxidation Reactions
- Nanomaterials for catalytic reactions
- Fuel Cells and Related Materials
- Supercapacitor Materials and Fabrication
- Copper-based nanomaterials and applications
- Advanced Memory and Neural Computing
- Catalysts for Methane Reforming
- Quantum Dots Synthesis And Properties
- Advanced Battery Materials and Technologies
- Catalysis and Hydrodesulfurization Studies
- Conducting polymers and applications
- Gas Sensing Nanomaterials and Sensors
- Advanced Nanomaterials in Catalysis
- Crystallization and Solubility Studies
- Advanced Fiber Optic Sensors
- MXene and MAX Phase Materials
- ZnO doping and properties
- nanoparticles nucleation surface interactions
- Graphene research and applications
- Machine Learning in Materials Science
Dalian Institute of Chemical Physics
2021-2025
Chinese Academy of Sciences
2009-2025
Wuyi University
2024-2025
Collaborative Innovation Center of Chemistry for Energy Materials
2024
Eastern Institute of Technology, Ningbo
2024
Institute of Engineering Thermophysics
2024
Southern University of Science and Technology
2018-2023
Princeton University
2023
Corning (United States)
2022
Massachusetts Institute of Technology
2022
Molecularly imprinted polymers (MIPs) with trinitrophenol (TNP) as a dummy template molecule capped CdTe quantum dots (QDs) were prepared using 3-aminopropyltriethoxy silane (APTES) the functional monomer and tetraethoxysilane (TEOS) cross linker through seed-growth method via sol–gel process (i.e., DMIP@QDs) for sensing of 2,4,6-trinitrotoluene (TNT) on basis electron-transfer-induced fluorescence quenching. With presence increase TNT in sample solutions, Meisenheimer complex was formed...
Single-atom catalysts (SACs) with 100% active sites have excellent prospects for application in the oxygen evolution reaction (OER). However, further enhancement of catalytic activity OER is quite challenging, particularly development stable SACs overpotentials <180 mV. Here, we report an iridium single atom on Ni2P catalyst (IrSA-Ni2P) a record low overpotential 149 mV at current density 10 mA·cm–2 1.0 M KOH. The IrSA-Ni2P delivers up to ∼28-fold higher than that widely used IrO2 1.53 V vs...
Developing efficient electrocatalysts for an oxygen evolution reaction (OER) is important renewable energy storage. Here, we design high-density Ir single-atom catalysts supported by CoOx amorphous nanosheets (ANSs) the OER. Experimental results show that single atoms are anchored abundant surface-absorbed O in ANSs. possess ultrahigh mass activity 160-fold of commercial IrO2. The OER IrCoOx ANSs reached a record low onset overpotential less than 30 mV. In situ X-ray absorption spectroscopy...
Noble metals have an irreplaceable role in catalyzing electrochemical reactions. However, large overpotential and poor long-term stability still prohibit their usage many reactions (e.g., oxygen evolution/reduction). With regard to the low natural abundance, improvement of overall electrocatalytic performance (activity, selectivity, stability) was urgently necessary. Herein, strong metal-support interaction (SMSI) modulated through unprecedented time-dependent mechanical milling method on...
Ultrafast response/recovery and high selectivity of gas sensors are critical for real-time online monitoring hazardous gases. In this work, α-Fe2O3 nano-ellipsoids were synthesized using a facile one-step hydrothermal method investigated as highly sensitive H2S-sensing materials. The have an average long-axis diameter 275 nm short-axis 125 nm. H2S fabricated the showed excellent performance at optimum working temperature 260 °C. response recovery times 0.8 s/2.2 s with concentration 50 ppm,...
Electrochemical water splitting is a promising way to produce hydrogen gas, but the sluggish kinetics of oxygen evolution reaction (OER) extremely restrict overall conversion efficiency splitting. Transition metal based LDHs (TM LDHs) are one most effective non-noble OER catalysts and have attracted wide interest, especially nickel-iron LDH (NiFe LDH). The high valence Ni3+ species with large coordination number play vital role in catalysis. Herein, we report on surprising discovery that...
Ga2O3 is emerging as an interesting semiconductor for high-power electronics and solar-blind ultraviolet photodetectors because of its ultrawide bandgap high breakdown field. To fully extend applications in optoelectronics, it highly desirable to fabricate a p–n heterojunction. In this work, we report detailed investigations on the epitaxial growth interface properties heterojunction consisting wide NiO β-phase Ga2O3. We show that NiO(111) layer can be grown β-Ga2O3(201) thin films, with...
Noble metal particles and atoms tend not to react with other media even at elevated temperatures due their inert nature. Herein, we report surprising findings of Au diffusion dissolution in a Ni2P matrix, forming single tiny clusters. The dynamic atomic process was directly probed by situ heating scanning transmission electron microscopy (STEM). yolks can diffuse dissolve completely into the shell 350 °C or higher, resulting an inward volume expansion formation clusters Ni2P. structure...
Manipulating Co oxidation by loading Au atoms can substantially enhance the OER activity of those activated ions.
Bimetallic nanoparticles afford geometric variation and electron redistribution via strong metal-metal interactions that substantially promote the activity selectivity in catalysis. Quantitatively describing atomic configuration of catalytically active sites, however, is experimentally challenged by averaging ensemble effect caused interplay between particle size crystal-phase at elevated temperatures under reactive gases. Here, we report intrinsic body-centered cubic PdCu nanoparticle, for...
The strong metal–support interaction over Pt/TiO2 catalysts, which were prepared by depositing size-specified Pt colloids (2–6 nm) onto anatase TiO2 nanosheets dominated the reactive {001} facets, was featured formation of Pt3Ti intermetallic alloy and showed a size-dependent effect. After H2 reduction at 773 K, bulk Pt–Ti alloys in mixture disordered ordered phases readily formed 2 nm particle, while alloys, with thickness up to 6 atomic layers, observed on 4–6 particles, showing as...
Despite wide studies demonstrating the versatility of metal oxide-zeolite (OXZEO) catalyst concept to tackle selectivity challenge in syngas chemistry, active sites oxides and mechanism CO/H2 activation remain be elucidated. Herein, we demonstrate experimentally role Cr zinc–chromium unveil visually, for first time, CO employing scanning transmission electron microscopy-electron energy loss spectroscopy using volumetric density surface carbon species as a descriptor. The ZnCr2O4 spinel with...
Porous Cu(OH)<sub>2</sub>/Cu<sub>7</sub>S<sub>4</sub> hybrid nanowires were efficiently prepared from the [Cu(tu)]Cl·1/2H<sub>2</sub>O (tu = thiourea) precursor in solution of 2 M KOH and showed large capacity.
Critical factors that govern the composition and morphology of discharge products are largely unknown for Na–O2 batteries. Here we report a reversible oxygen reduction reaction (ORR) evolution (OER) process in sodium–oxygen battery observed using situ environmental-transmission electron microscopy (TEM) experiment. The mechanism phase probed diffraction TEM imaging. ORR OER cycling lies upon nanosized copper clusters were formed by sodiation CuS. In revealed formation NaO2 initially, which...
Single-atom catalysts (SACs), combining the merits of homogeneous and heterogeneous catalysts, have attracted significant interest. Rational design synthesis SACs requires a clear understanding real active sites in different pH solutions. Here, by recognizing distinct physicochemical properties H+ OH− oxygen reduction reaction (ORR), we identify two key structures, FeN4 graphitic-type N-CH (g-type N-CH), to be catalytic toward ORR acidic alkaline solutions, respectively. This insight is...