A5075377676- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Radioactive element chemistry and processing
- Advancements in Solid Oxide Fuel Cells
- Catalytic Processes in Materials Science
- Fuel Cells and Related Materials
- CO2 Reduction Techniques and Catalysts
- Electronic and Structural Properties of Oxides
- Electrochemical Analysis and Applications
- Advanced Photocatalysis Techniques
- Metal-Organic Frameworks: Synthesis and Applications
- Copper-based nanomaterials and applications
- Covalent Organic Framework Applications
- Catalysis and Oxidation Reactions
- Advancements in Battery Materials
- Chemical Synthesis and Characterization
- Supercapacitor Materials and Fabrication
- Nuclear Materials and Properties
- ZnO doping and properties
- Magnetic and transport properties of perovskites and related materials
- Vehicular Ad Hoc Networks (VANETs)
- Ionic liquids properties and applications
- Advanced Battery Materials and Technologies
Shanghai Institute of Applied Physics
2016-2025
Chinese Academy of Sciences
2016-2025
University of Chinese Academy of Sciences
2020-2025
First Affiliated Hospital of Xi'an Jiaotong University
2019-2025
Xi'an Jiaotong University
2025
Taiyuan University of Technology
2022-2025
State Grid Corporation of China (China)
2024
Shenyang University of Chemical Technology
2023
Institute of Computing Technology
2022-2023
Dalian National Laboratory for Clean Energy
2020-2023
Understanding the origin of high activity Fe–N–C electrocatalysts in oxygen reduction reaction (ORR) is critical but still challenging for developing efficient sustainable nonprecious metal catalysts fuel cells and metal–air batteries. Herein, we developed a new highly active ORR catalyst containing Fe–Nx coordination sites Fe/Fe3C nanocrystals (Fe@C-FeNC), revealed its by intensively investigating composition structure their correlations with electrochemical performance. The detailed...
Abstract Although single-atomically dispersed metal-N x on carbon support (M-NC) has great potential in heterogeneous catalysis, the scalable synthesis of such single-atom catalysts (SACs) with high-loading is greatly challenging since loading and single-atomic dispersion have to be balanced at high temperature for forming . Herein, we develop a general cascade anchoring strategy mass production series M-NC SACs metal up 12.1 wt%. Systematic investigation reveals that chelation ions,...
The development of active, acid-stable and low-cost electrocatalysts for oxygen evolution reaction is urgent challenging. Herein we report an Iridium-free low ruthenium-content oxide material (Cr0.6Ru0.4O2) derived from metal-organic framework with remarkable performance in acidic condition. It shows a record overpotential 178 mV at 10 mA cm-2 maintains the excellent throughout h chronopotentiometry test constant current 0.5 M H2SO4 solution. Density functional theory calculations further...
Metal-organic frameworks (MOFs) based on zirconium phosphonates exhibit superior chemical stability suitable for applications under harsh conditions. These compounds mostly exist as poorly crystallized precipitates, and precise structural information has therefore remained elusive. Furthermore, a zero-dimensional phosphonate cluster acting secondary building unit been lacking, leading to poor designability in this system. Herein, we overcome these challenges obtain single crystals of three...
Uranium is not only a strategic resource for the nuclear industry but also global contaminant with high toxicity. Although several strategies have been established detecting uranyl ions in water, searching new uranium sensor material great sensitivity, selectivity, and stability remains challenge. We introduce here hydrolytically stable mesoporous terbium(III)-based MOF compound 1, whose channels are as large 27 Å × 23 equipped abundant exposed Lewis basic sites, luminescence intensity of...
It is extremely significant to study the trap state passivation and minimize states of perovskite achieve high-performance solar cells (PSCs). Here, we have first revealed demonstrated that a novel p-type conductor Cu(thiourea)I [Cu(Tu)I] incorporated in layer can effectively passivate via interacting with under-coordinated metal cations halide anions at crystal surface. The energy level be shallowed from 0.35-0.45 eV 0.25-0.35 eV. In addition, Cu(Tu)I participate constructing p-i bulk...
Enrichment of uranyl from seawater is crucial for the sustainable development nuclear energy, but current uranium extraction technology suffers multiple drawbacks low sorption efficiency, slow uptake kinetics, or poor selectivity. Herein, we prepared first example amidoxime appended metal–organic framework UiO-66-AO by a postsynthetic modification method rapid and efficient seawater. can remove 94.8% ion Bohai within 120 min 99% containing extra 500 ppb 10 min. The capacity in real sample...
Abstract The ability to determine the electronic structure of catalysts during electrochemical reactions is highly important for identification active sites and reaction mechanism. Here we successfully applied soft X-ray spectroscopy follow in operando valence spin state Co ions Li 2 O 4 under oxygen evolution (OER) conditions. We have observed that a substantial fraction undergo voltage-dependent time-dependent transition from 3+ 4+ accompanied by spontaneous delithiation, whereas...
In the present study, a highly efficient strategy is reported using open framework platforms with abundant chelating ligands to fabricate series of stable metal single-atom catalysts (SACs). Here, ions are initially anchored onto active bipyridine sites through postsynthetic modification, followed by pyrolysis and acid leaching. The resulting single atoms uniformly distributed on nitrogen-doped carbon (N-C) matrix. Interestingly, each atom found be coordinated five N atoms, in contrast...
Elucidating the structure-property relationship is crucial for design of advanced electrocatalysts towards production hydrogen peroxide (H2O2). In this work, we theoretically and experimentally discovered that atomically dispersed Lewis acid sites (octahedral M-O species, M = aluminum (Al), gallium (Ga)) regulate electronic structure adjacent carbon catalyst sites. Density functional theory calculation predicts octahedral with strong acidity regulates distribution site thus optimizes...
Active and highly stable electrocatalysts for oxygen evolution reaction (OER) in acidic media are currently high demand as a cleaner alternative to the combustion of fossil fuels. Herein, we report Co-doped nanorod-like RuO2 electrocatalyst with an abundance vacancies achieved through facile, one-step annealing Ru-exchanged ZIF-67 derivative. The compound exhibits ultra-high OER performance media, low overpotential 169 mV at 10 mA cm−2 while maintaining excellent activity, even when exposed...
<italic>Operando</italic> X-ray absorption spectroscopy (XAS) technique unravels that the CoFe nanoparticles in a new type of lanthana-anchored catalyst are nearly transformed into unique (Co/Fe)O(OH) under electrochemical condition, as real active species for oxygen evolution reaction.
For efficient electrochemical catalysts, several molecular-scale descriptors have been proposed for the oxygen reduction reaction (ORR) and evolution (OER). Various of perovskite catalysts successfully understanding either ORR or OER, but previous studies are insufficient to explain thus boost up both OER simultaneously due obstacles such as many different chemical compositions, structures, metal orbital bands. Therefore, we investigate ORR/OER activities a function only vacancy...
Abstract Searching for actinide decorporation agents with advantages of high efficiency, minimal biological toxicity, and oral efficiency is crucial nuclear safety the sustainable development energy. Removing actinides deposited in bones after intake one most significant challenges remaining this field because instantaneous formation highly stable phosphate complexes upon contact hydroxyapatite. Here we report a hydroxypyridinone-based ligand (5LIO-1-Cm-3,2-HOPO) exhibiting stronger affinity...
Surface terminations of two-dimensional MXene (Ti3 C2 Tx ) considerably impact its physicochemical properties. Commonly used etching methods usually introduce -F surface or metallic impurities in MXene. We present a new molten-salt-assisted electrochemical method to synthesize fluorine-free Ti3 Cl2 . Using electrons as reaction agents, cathode reduction and anode can be spatially isolated; thus, no metallics are the product. The situ modified from -Cl -O and/or -S, which shortens...
Understanding the catalysis mechanism of sluggish oxygen evolution reaction (OER) involved in water splitting is vital importance for development clean hydrogen energy. Earth-abundant transition-metal (oxy)hydroxide with low cost and high performance one most promising OER catalysts. These catalysts often dynamically heterogeneously transform from inactive pre-catalysts into active phases under operation conditions, thus, operando/in situ method needed direct observation. Herein, using Raman...
Abstract Highly active catalysts that can directly utilize renewable energy (e.g., solar energy) are desirable for CO 2 value‐added processes. Herein, aiming at improving the efficiency of photodriven cycloaddition reactions, a catalyst composed porous carbon nanosheets enriched with high loading atomically dispersed Al atoms (≈14.4 wt%, corresponding to an atomic percent ≈7.3%) coordinated N (AlN 4 motif, Al–N–C catalyst) via versatile molecule‐confined pyrolysis strategy is reported. The...
Abstract Designing efficient catalyst for the oxygen evolution reaction (OER) is of importance energy conversion devices. The anionic redox allows formation O-O bonds and offers higher OER activity than conventional metal sites. Here, we successfully prepare LiNiO 2 with a dominant 3 d 8 L configuration ( hole at O p ) under high pressure, achieve double ligand holes since one electron removal occurs orbitals Ni III oxides. exhibits super-efficient among LiMO , R MO (M = transition metal,...
The synthesized GO–CS–P exhibits ultrafast removal kinetics, high sorption capacity and great selectivity towards U(<sc>vi</sc>).
Selenium is of great concern owing to its acutely toxic characteristic at elevated dosage and the long-term radiotoxicity 79Se. The contents selenium in industrial wastewater, agricultural runoff, drinking water have be constrained a value 50 μg/L as maximum concentration limit. We reported here uptake using structurally well-defined cationic layered rare earth hydroxide, Y2(OH)5Cl·1.5H2O. sorption kinetics, isotherms, selectivity, desorption selenite selenate on Y2(OH)5Cl·1.5H2O pH 7 8.5...
Abstract By a facile coordination-based post-synthetic strategy, the high surface area MIL-101(Cr) nanoparticles was functionallized by grafting amine group of ethylenediamine (ED) on coordinatively unsaturated Cr(III) centers, yielding series ED-MIL-101(Cr)-based adsorbents and their application for adsorption U(VI) from aqueous solution were also studied. The obtained ED-functionallized samples with different ED contents characterized powder X-ray diffraction (PXRD), scanning electron...