A5079010450- Electrocatalysts for Energy Conversion
- Advancements in Solid Oxide Fuel Cells
- Advanced battery technologies research
- Electronic and Structural Properties of Oxides
- Fuel Cells and Related Materials
- Magnetic and transport properties of perovskites and related materials
- Combustion and Detonation Processes
- Advancements in Battery Materials
- Perovskite Materials and Applications
- Advanced Photocatalysis Techniques
- Advanced Battery Materials and Technologies
- Refrigeration and Air Conditioning Technologies
- Geoscience and Mining Technology
- Fire dynamics and safety research
- Catalysis and Oxidation Reactions
- Geomechanics and Mining Engineering
- Electrochemical Analysis and Applications
- Catalytic Processes in Materials Science
- Chemical Thermodynamics and Molecular Structure
- Atmospheric chemistry and aerosols
- Combustion and flame dynamics
- Heat Transfer and Optimization
- Heat Transfer and Boiling Studies
- Supercapacitor Materials and Fabrication
- Advanced Combustion Engine Technologies
Zhejiang University
2024-2025
Nanyang Technological University
2018-2025
The Cambridge Centre for Advanced Research and Education in Singapore
2020-2025
Zhejiang Energy Research Institute
2024-2025
Shanxi University
2025
Dalian Institute of Chemical Physics
2025
Chinese Academy of Sciences
2025
Tianjin University
2019-2024
Jilin Academy of Agricultural Sciences
2022-2024
Institute of Pomology
2022-2024
Development of cost-effective and efficient electrocatalysts for oxygen reduction reaction (ORR) evolution (OER) is prime importance to emerging renewable energy technologies. Here, we report a simple effective strategy enhancing ORR OER electrocatalytic activity in alkaline solution by introducing A-site cation deficiency LaFeO3 perovskite; the enhancement effect more pronounced than ORR. Among deficient perovskites studied, La0.95FeO3-δ (L0.95F) demonstrates highest and, hence, best...
Abstract The development of oxygen evolution reaction (OER) electrocatalysts remains a major challenge that requires significant advances in both mechanistic understanding and material design. Recent studies show from the perovskite oxide lattice could participate OER via oxygen-mediated mechanism, providing possibilities for alternative overcome scaling relations-induced limitations found conventional catalysts utilizing adsorbate mechanism. Here we distinguish extent to which participation...
Perovskite oxides are demonstrated for the first time as efficient electrocatalysts hydrogen evolution reaction (HER) in alkaline solutions. A-site praseodymium-doped Pr0.5 (Ba0.5 Sr0.5 )0.5 Co0.8 Fe0.2 O3- δ (Pr0.5BSCF) exhibits dramatically enhanced HER activity and stability compared to Ba0.5 (BSCF), superior many well-developed bulk/nanosized nonprecious electrocatalysts. The improved performance originates from modified surface electronic structures properties of Pr0.5BSCF induced by Pr-doping.
Abstract The perovskite SrNb 0.1 Co 0.7 Fe 0.2 O 3− δ (SNCF) is a promising OER electrocatalyst for the oxygen evolution reaction (OER), with remarkable activity and stability in alkaline solutions. This catalyst exhibits higher intrinsic activity, smaller Tafel slope better than state‐of‐the‐art precious‐metal IrO 2 well‐known BSCF perovskite. mass are further improved by ball milling. Several factors including optimized e g orbital filling, good ionic charge transfer abilities, as well...
Exploring robust catalysts for water oxidation in acidic electrolyte is challenging due to the limited material choice. Iridium (Ir) only active element with a high resistance acid corrosion during electrolysis. However, Ir rare, and its large-scale application could be possible if intrinsic activity of greatly enhanced. Here, pseudo-cubic SrCo0.9Ir0.1O3-δ perovskite, containing corner-shared IrO6 octahedrons, designed. The catalyst shows an extremely as reflected from turnover frequency,...
Abstract The sequenced genomes of oomycete plant pathogens contain large superfamilies effector proteins containing the protein translocation motif RXLR-dEER. However, contributions these effectors to pathogenicity remain poorly understood. Here, we show that Phytophthora sojae Avr1b can contribute positively virulence and suppress programmed cell death (PCD) triggered by mouse BAX in yeast, soybean (Glycine max), Nicotiana benthamiana cells. We identify three conserved motifs (K, W, Y) C...
A synergistic co-doping strategy is proposed to identify a series of BaCo0.9–xFexSn0.1O3–δ perovskites with tunable electrocatalytic activity for the oxygen evolution reaction (OER). Simply through tailoring relative concentrations less OER-active tin and iron dopants, cubic perovskite structure (BaCo0.7Fe0.2Sn0.1O3–δ) stabilized, showing intrinsic OER >1 order magnitude larger than IrO2 Tafel slope 69 mV dec−1. The design cost-effective highly efficient catalysts wide range electrochemical...
Layered LiCo0.8Fe0.2O2 demonstrates dramatically enhanced oxygen evolution reaction (OER) activity and durability in an alkaline solution over LiCoO2 other reported state-of-the-art catalysts, including benchmark IrO2. This superior performance is attributed to Fe-doping-induced synergistic effects. As a service our authors readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed may be re-organized for online delivery, but not...
Solid oxide fuel cells (SOFCs) represent one of the cleanest and most efficient options for direct conversion a wide variety fuels to electricity. For example, SOFCs powered by natural gas are ideally suited distributed power generation. However, commercialization SOFC technologies hinges on breakthroughs in materials development dramatically reduce cost while enhancing performance durability. One critical obstacles achieving high‐performance systems is cathodes oxygen reduction reaction...
Efficient electrocatalysts for hydrogen evolution reaction are key to realize clean production through water splitting. As an important family of functional materials, transition metal oxides generally believed inactive towards reaction, although many them show high activity oxygen reaction. Here we report the remarkable electrocatalytic a layered oxide, Ruddlesden-Popper-type Sr2RuO4 with alternative perovskite layer and rock-salt SrO layer, in alkaline solution, which is comparable those...
Solid oxide fuel cells (SOFCs) have potential to be the cleanest and most efficient electrochemical energy conversion devices with excellent flexibility. To make SOFC systems more durable economically competitive, however, operation temperature must significantly reduced, which depends sensitively on development of highly active electrocatalysts for oxygen reduction reaction (ORR) at low temperatures. Here we report a novel silver nanoparticle-decorated perovskite oxide, prepared via facile...
Perovskite oxide is an attractive low-cost alternative catalyst for oxygen evolution reaction (OER) relative to the precious metal oxide-based electrocatalysts (IrO2 and RuO2). In this work, a series of Sr-doped La-based perovskite catalysts with compositions La1- xSr xFeO3-δ ( x = 0, 0.2, 0.5, 0.8, 1) are synthesized characterized. The OER-specific activities in alkaline solution increase order LaFeO3-δ (LF), La0.8Sr0.2FeO3-δ (LSF-0.2), La0.5Sr0.5FeO3-δ (LSF-0.5), SrFeO3-δ (SF),...
Abstract Single‐phase perovskite oxides that contain nonprecious metals have long been pursued as candidates for catalyzing the oxygen evolution reaction, but their catalytic activity cannot meet requirements practical electrochemical energy conversion technologies. Here a cation deficiency‐promoted phase separation strategy to design perovskite‐based composites with significantly enhanced water oxidation kinetics compared single‐phase counterparts is reported. These composites,...
Abstract A rational design for oxygen evolution reaction (OER) catalysts is pivotal to the overall efficiency of water electrolysis. Much work has been devoted understanding cation leaching and surface reconstruction very active electrocatalysts, but little on intentionally promoting in a controlled fashion. We now report controllable anodic Cr CoCr 2 O 4 by activating pristine material at high potential, which enables transformation inactive spinel into highly catalyst. The depletion...
An ideal solid oxide fuel cell (SOFC) cathode should meet multiple requirements, i.e., high activity for oxygen reduction reaction (ORR), good conductivity, favorable stability, and sound thermo-mechanical/chemical compatibility with electrolyte, while it is very challenging to achieve all these requirements based on a single-phase material. Herein, cost-effective multi-phase nanocomposite, facilely synthesized through smart self-assembly at temperature, developed as near-ideal of...
Abstract Doped perovskite oxides with the general formula of A x A′ 1− B y B′ O 3 have been extensively exploited as cathode materials solid oxide fuel cells (SOFCs), but performance at low‐to‐medium temperatures still needs improvement. BaCo 0.4 Fe Zr 0.1 Y 3− δ (BCFZY) has recently reported to show promising oxygen reduction reaction (ORR) activity under SOFCs' operating conditions. Here, it is that BCFZY can be further boosted via introducing a slight B‐site cation deficiency into...
Understanding and mastering the structural evolution of water oxidation electrocatalysts lays foundation to finetune their catalytic activity. Herein, we demonstrate that surface reconstruction spinel oxides originates from metal-oxygen covalency polarity in MT-O-MO backbone. A stronger MO-O relative MT-O is found beneficial for a more thorough towards oxyhydroxides. The structure-reconstruction relationship allows precise prediction ability pre-catalysts, based on which degree situ...
Cobalt-free small La3+-doped BaFeO3−δ is synthesized and systematically characterized towards application as an oxygen reduction electrode material for intermediate temperature solid oxide fuel cells (IT-SOFCs) with oxygen-ion conducting electrolyte. The formation of vacancy-disordered perovskite cubic lattice symmetry demonstrated by XRD, after the doping only 5 mol% La3+ into parent Ba0.95La0.05FeO3−δ (BLF). structural, thermal, electrical electrochemical properties BLF have been...
The development of efficient, inexpensive, and stable electrocatalysts for the oxygen evolution reaction (OER) is critical many electrochemical energy conversion technologies. prohibitive price insufficient stability state-of-the-art IrO2 electrocatalyst OER inhibits its use in practical devices. Here, SrM0.9Ti0.1O3−δ (M = Co, Fe) perovskites with different B-site transition metal elements were investigated as potentially cheaper electrocatalysts. They prepared through a typical sol–gel...
The high cost, scarcity, and poor stability of metallic platinum (Pt) as an oxygen reduction reaction (ORR) catalyst in fuel cells metal-air batteries have limited the commercialization these attractive clean-energy technologies. Thus, developing alternative electrocatalysts that are economical achieve maximized efficiency stably catalyzing ORR is prime importance societal pursuit sustainable energy. Metallic palladium (Pd) electrocatalyst less expensive than Pt; however, its current...
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...