A5100413146- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advancements in Battery Materials
- Perovskite Materials and Applications
- Near-Field Optical Microscopy
- Conducting polymers and applications
- Algal biology and biofuel production
- Copper-based nanomaterials and applications
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Photonic and Optical Devices
- Gas Sensing Nanomaterials and Sensors
- Water Quality Monitoring and Analysis
- Semiconductor materials and devices
- Advanced Fiber Laser Technologies
- Integrated Circuits and Semiconductor Failure Analysis
- Optical Network Technologies
- Ferroelectric and Piezoelectric Materials
- Advanced Battery Technologies Research
- Atmospheric chemistry and aerosols
Shandong Academy of Agricultural Sciences
2014-2025
Hong Kong Polytechnic University
2021-2024
Nanjing University of Information Science and Technology
2024
Lanzhou Jiaotong University
2022-2024
Sichuan University of Science and Engineering
2017-2023
Langley Research Center
2016-2023
Dongguan University of Technology
2023
Inspur (China)
2023
Sichuan University
2022
Wuhan University of Technology
2021-2022
Abstract Rationally designing active and durable catalysts for the oxygen evolution reaction (OER) is of primary importance in water splitting. Perovskite oxides (ABO 3 ) with versatile structures multiple physicochemical properties have triggered considerable interest OER. The leaching A site cations can create nanostructures amorphous motifs on perovskite matrix, thus facilitating OER process. However, selectively dissolving simultaneously obtaining more derived from B remains a great...
Developing highly efficient and affordable noble-metal-free catalysts toward the hydrogen evolution reaction (HER) is an important step economical production of hydrogen. As a nonprecious-metal catalyst for HER, molybdenum nitride (MoN) has excellent corrosion resistance high electrical conductivity, but its catalytic activity still inadequate. Here we report our findings in dramatically enhancing HER MoN by creating porous MoN@nitrogen-doped carbon (MoN-NC) nano-octahedrons derived from...
This review proposed dynamic structural reconstruction/transformation routes for OER and CO<sub>2</sub>RR electrocatalysts based on<italic>in situ</italic>X-ray diffraction/absorption spectroscopy.
Perovskite oxides exhibit potential for use as electrocatalysts in the oxygen evolution reaction (OER). However, their low specific surface area is main obstacle to realizing a high mass-specific activity that required be competitive against state-of-the-art precious metal-based catalysts. We report enhanced performance of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) OER with intrinsic significantly higher than benchmark IrO2, and this result was achieved via fabrication an amorphous BSCF nanofilm on...
Nitrates are widely used as fertilizer and oxidizing agents. Commercial nitrate production from nitrogen involves high-temperature-high-pressure multi-step processes. Therefore, an alternative method under ambient environment is of importance. Herein, electrochemical oxidation reaction (NOR) approach developed to produce catalyzed by ZnFex Co2-x O4 spinel oxides. Theoretical experimental results show Fe aids the formation first N-O bond on *N site, while high state Co assists in stabilizing...
Guaranteeing satisfactory catalytic behavior while ensuring high metal utilization has become the problem that needs to be addressed when designing noble-metal-based catalysts for electrochemical reactions. Here, well-dispersed ruthenium (Ru) based clusters with adjacent Ru single atoms (SAs) on layered sodium cobalt oxide (Ru/NC) are demonstrated as a superb electrocatalyst alkaline HER. The Ru/NC catalyst demonstrates an activity increase by factor of two relative commercial Pt/C. Operando...
Abstract Although oxygen vacancies (Ovs) have been intensively studied in single semiconductor photocatalysts, exploration of intrinsic mechanisms and in‐depth understanding Ovs S‐scheme heterojunction photocatalysts are still limited. Herein, a novel photocatalyst made from WO 3 ‐Ov/In 2 S with at the heterointerface is rationally designed. The microscopic environment local electronic structure well optimized by Ovs. Femtosecond transient absorption spectroscopy (fs‐TAS) reveals that...
A recently developed scanning tip microwave near-field microscope has been improved to achieve a spatial resolution of 100 nm (∼λ/106). Furthermore, explicit calculations the field distribution using simplified model allow quantitative microscopy dielectric properties for materials. detection sensitivity δε/ε∼6×10−4 achieved.
Practical application of hydrogen production from water splitting relies strongly on the development low-cost and high-performance electrocatalysts for evolution reaction (HER). The previous researches mainly focused transition metal nitrides as HER catalysts due to their electrical conductivity corrosion stability under acidic electrolyte, while tungsten have reported poorer activity HER. Here nitride is optimized through rational design a nitride-carbon composite. More specifically, (WN
Abstract The development of efficient bifunctional electrodes with extraordinary mass activity and robust stability is an eternal yet challenging goal for the water‐splitting process. Surface reconstruction during electrocatalysis can form fresh‐composition electrocatalysts unusual amorphous phases in situ, which are more active but difficult to prepare by conventional methods. Here, a facile strategy based on fast nanofilm precursors proposed exploring precious‐metal‐free catalysts good...
The vital role of ethylenediaminetetraacetic acid on the structure and oxygen reduction reaction activity non-precious-metal-based pyrolyzed catalyst is reported elaborated. resultant can overtake performance commercial Pt/C in an alkaline medium. Polymer electrolyte membrane fuel cell (PEMFC) offers much higher efficiency lower point-of-use emission over combustion engine.1 These advantages, addition to longer operating time fast refueling, render it more competitive than conventional...
A solid oxide fuel cell (SOFC) is a highly efficient device for converting chemical energy to electrical energy. In addition the efforts reduce operating temperature of SOFCs below 600 °C, research studies basic mechanism CO2 poisoning on cathode materials are envisioned improve operation dual-chamber using ambient air. this work, we comparatively studied effect two active perovskites SrSc0.175Nb0.025Co0.8O3-δ (SSNC) and Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF), complementary characterization...
Abstract An efficient and cost-effective oxygen evolution reaction (OER) electrocatalyst is key for electrochemical energy generation storage technologies. Here, the rational design in situ formation of an antiperovskite-based hybrid with a porous conductive Cu 1− x NNi 3− y ( represent defect) core amorphous FeNiCu (oxy)hydroxide shell reported as promising water oxidation electrocatalyst, showing outstanding performance. Benefiting from unique advantage core–shell structure, well...
Based on the materials genome strategy, a novel B-site cation ordered double perovskite SrCo<sub>0.4</sub>Fe<sub>0.2</sub>W<sub>0.4</sub>O<sub>3−δ</sub> has been designed as highly efficient OER catalyst.
The development of efficient catalysts is critical in advancing electrocatalysis techniques. While tremendous progress has been made on the perspective optimizing catalyst–reactant interaction, influence from other properties received relatively less attention to date. These are normally originated intrinsic solid-state and can be circumstantially influential reaction activity mechanism. In particular, transition metal oxides (TMOs) possess complex inherent features that enable a wide...
The efficiency of electrolytic hydrogen production is limited by the slow reaction kinetics oxygen evolution (OER). Surface-reconstructed ferromagnetic (FM) catalysts with a spin-pinning effect at FM/oxyhydroxide interface could enhance spin-dependent OER kinetics. However, in real-life applications, electrolyzers are operated elevated temperature, which may disrupt spin orientations FM and limit their performance. In this study, we prepared surface-reconstructed SmCo5 /CoOx Hy , possesses...
Electrochemically producing formate by oxidizing methanol is a promising way to add value methanol. Noble metal-based electrocatalysts, which have been extensively studied for the oxidation reaction, can catalyze complete of carbon dioxide, but not mild formate. As result, exploring efficient and earth-abundant electrocatalysts production from interest. Herein, we present electro-oxidation formate, catalyzed iron-substituted lanthanum cobaltite (LaCo1−xFexO3). The Fe/Co ratio in oxides...
Glycerol is a byproduct of biodiesel production and can be low-cost source for some high-value C1-C3 chemicals. The conversion achieved by photo-, thermo-, electro-catalysis methods. electrocatalytic oxidation method attractive due to its moderate reaction conditions high electron product efficiency. Most reported catalysts are based on noble metals, while metal oxides rarely reported. Here, we investigated the electro-oxidation glycerol series ZnFexCo2-xO4 (x = 0, 0.4, 1.0, 1.4, 2.0) spinel...
A facile strategy is proposed to finely manipulate the surface cation configuration of Ruddlesden–Popper perovskites, offering exceptional water oxidation performance in both setups rotating disk electrodes and membrane electrode assemblies.
Abstract Inactive elemental doping is commonly used to improve the structural stability of high-voltage layered transition-metal oxide cathodes. However, one-step co-doping strategy usually results in small grain size since low diffusivity ions such as Ti 4+ will be concentrated on boundaries, which hinders growth. In order synthesize large single-crystal cathodes, considering different diffusivities dopant ions, we propose a simple two-step multi-element fabricate core–shell structured...