Search Results - "Jia, Qingying"
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Activity Descriptor Identification for Oxygen Reduction on Nonprecious Electrocatalysts: Linking Surface Science to Coordination Chemistry
Published in Journal of the American Chemical Society (16-10-2013)“…Developing nonprecious group metal based electrocatalysts for oxygen reduction is crucial for the commercial success of environmentally friendly energy…”
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2
Charge-Transfer Effects in Ni–Fe and Ni–Fe–Co Mixed-Metal Oxides for the Alkaline Oxygen Evolution Reaction
Published in ACS catalysis (04-01-2016)“…Ni–Fe and Ni–Fe–Co mixed-metal oxide (MMO) films were investigated as electrocatalysts for the oxygen evolution reaction (OER) in 0.1 M KOH. In an effort to…”
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Chemical vapour deposition of Fe–N–C oxygen reduction catalysts with full utilization of dense Fe–N4 sites
Published in Nature materials (01-10-2021)“…Replacing scarce and expensive platinum (Pt) with metal–nitrogen–carbon (M–N–C) catalysts for the oxygen reduction reaction in proton exchange membrane fuel…”
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X‐Ray Absorption Spectroscopy Characterizations on PGM‐Free Electrocatalysts: Justification, Advantages, and Limitations
Published in Advanced materials (Weinheim) (01-08-2019)“…Transition metals embedded in nitrogen‐doped carbon matrices (denoted as M‐N‐C) are the leading platinum group metal (PGM)‐free electrocatalysts for the oxygen…”
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Identification of catalytic sites in cobalt-nitrogen-carbon materials for the oxygen reduction reaction
Published in Nature communications (16-10-2017)“…Single-atom catalysts with full utilization of metal centers can bridge the gap between molecular and solid-state catalysis. Metal-nitrogen-carbon materials…”
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Unifying the Hydrogen Evolution and Oxidation Reactions Kinetics in Base by Identifying the Catalytic Roles of Hydroxyl-Water-Cation Adducts
Published in Journal of the American Chemical Society (20-02-2019)“…Despite the fundamental and practical significance of the hydrogen evolution and oxidation reactions (HER/HOR), their kinetics in base remain unclear. Herein,…”
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Asymmetric Volcano Trend in Oxygen Reduction Activity of Pt and Non-Pt Catalysts: In Situ Identification of the Site-Blocking Effect
Published in Journal of the American Chemical Society (01-02-2017)“…Proper understanding of the major limitations of current catalysts for oxygen reduction reaction (ORR) is essential for further advancement. Herein by studying…”
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Experimental Observation of Redox-Induced Fe–N Switching Behavior as a Determinant Role for Oxygen Reduction Activity
Published in ACS nano (22-12-2015)“…The commercialization of electrochemical energy conversion and storage devices relies largely upon the development of highly active catalysts based on abundant…”
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Highly active oxygen reduction non-platinum group metal electrocatalyst without direct metal–nitrogen coordination
Published in Nature communications (10-06-2015)“…Replacement of noble metals in catalysts for cathodic oxygen reduction reaction with transition metals mostly create active sites based on a composite of…”
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Ultrafine jagged platinum nanowires enable ultrahigh mass activity for the oxygen reduction reaction
Published in Science (American Association for the Advancement of Science) (16-12-2016)“…Improving the platinum (Pt) mass activity for the oxygen reduction reaction (ORR) requires optimization of both the specific activity and the electrochemically…”
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Experimental Proof of the Bifunctional Mechanism for the Hydrogen Oxidation in Alkaline Media
Published in Angewandte Chemie (International ed.) (04-12-2017)“…Realization of the hydrogen economy relies on effective hydrogen production, storage, and utilization. The slow kinetics of hydrogen evolution and oxidation…”
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Microporous Framework Induced Synthesis of Single-Atom Dispersed Fe-N‑C Acidic ORR Catalyst and Its in Situ Reduced Fe‑N4 Active Site Identification Revealed by X‑ray Absorption Spectroscopy
Published in ACS catalysis (06-04-2018)“…Developing highly efficient, low-cost oxygen reduction catalysts, especially in acidic medium, is of significance toward fuel cell commercialization. Although…”
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13
Roles of Mo Surface Dopants in Enhancing the ORR Performance of Octahedral PtNi Nanoparticles
Published in Nano letters (14-02-2018)“…Doping with a transition metal was recently shown to greatly boost the activity and durability of PtNi/C octahedral nanoparticles (NPs) for the oxygen…”
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14
Evolution Pathway from Iron Compounds to Fe1(II)–N4 Sites through Gas-Phase Iron during Pyrolysis
Published in Journal of the American Chemical Society (22-01-2020)“…Pyrolysis is indispensable for synthesizing highly active Fe–N–C catalysts for the oxygen reduction reaction (ORR) in acid, but how Fe, N, and C precursors…”
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15
Activity Descriptor Identification for Oxygen Reduction on Platinum-Based Bimetallic Nanoparticles: In Situ Observation of the Linear Composition–Strain–Activity Relationship
Published in ACS nano (27-01-2015)“…Despite recent progress in developing active and durable oxygen reduction catalysts with reduced Pt content, lack of elegant bottom-up synthesis procedures…”
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Unraveling the Nature of Sites Active toward Hydrogen Peroxide Reduction in Fe‐N‐C Catalysts
Published in Angewandte Chemie (International ed.) (17-07-2017)“…Fe‐N‐C catalysts with high O2 reduction performance are crucial for displacing Pt in low‐temperature fuel cells. However, insufficient understanding of which…”
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17
Resolving the Iron Phthalocyanine Redox Transitions for ORR Catalysis in Aqueous Media
Published in The journal of physical chemistry letters (06-07-2017)“…Metal macrocycles are among the most important catalytic systems in electrocatalysis and biocatalysis owing to their rich redox chemistry. Precise…”
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Nano-structured non-platinum catalysts for automotive fuel cell application
Published in Nano energy (01-09-2015)“…A highly active and durable non-platinum group metal (non-PGM) electrocatalyst was synthesized at high temperature from a catalyst precursor involving a…”
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Improved Oxygen Reduction Activity and Durability of Dealloyed PtCox Catalysts for Proton Exchange Membrane Fuel Cells: Strain, Ligand, and Particle Size Effects
Published in ACS catalysis (01-12-2014)“…The development of active and durable catalysts with reduced platinum content is essential for fuel cell commercialization. Here in this paper, we report that…”
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Highly Active and Stable Fe–N–C Catalyst for Oxygen Depolarized Cathode Applications
Published in Langmuir (19-09-2017)“…Anion immunity toward the oxygen reduction reaction (ORR) has tremendous implications in electrocatalysis with applications for fuel cells, metal–air…”
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