Jun Wang

ORCID: 0000-0003-4954-2794
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About
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Research Areas
  • Advancements in Battery Materials
  • Advanced Battery Materials and Technologies
  • Advanced battery technologies research
  • Supercapacitor Materials and Fabrication
  • Electrocatalysts for Energy Conversion
  • MXene and MAX Phase Materials
  • Advanced Battery Technologies Research
  • Extraction and Separation Processes
  • Fuel Cells and Related Materials
  • Advanced Photocatalysis Techniques
  • Graphene research and applications
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Electron and X-Ray Spectroscopy Techniques
  • Power Systems and Renewable Energy
  • Chemical Synthesis and Characterization
  • Advanced Measurement and Detection Methods
  • Catalytic Processes in Materials Science
  • Ammonia Synthesis and Nitrogen Reduction
  • Transition Metal Oxide Nanomaterials
  • Advanced Memory and Neural Computing
  • Postharvest Quality and Shelf Life Management
  • 2D Materials and Applications
  • Aluminum Alloys Composites Properties
  • Advanced ceramic materials synthesis

Southwest University of Science and Technology
2023-2025

Beijing University of Chemical Technology
2017-2025

Northwest A&F University
2020-2025

Beijing Advanced Sciences and Innovation Center
2025

Shandong University
2013-2024

Hubei University of Chinese Medicine
2024

Hubei Provincial Hospital of Traditional Chinese Medicine
2024

Nanjing University of Science and Technology
2011-2024

East China University of Science and Technology
2024

University of Hong Kong
2023-2024

Abstract Lattice oxygen can play an intriguing role in electrochemical processes, not only maintaining structural stability, but also influencing electron and ion transport properties high-capacity oxide cathode materials for Li-ion batteries. Here, we report the design of a gas–solid interface reaction to achieve delicate control activity through uniformly creating vacancies without affecting integrity Li-rich layered oxides. Theoretical calculations experimental characterizations...

10.1038/ncomms12108 article EN cc-by Nature Communications 2016-07-01

Urchin-like Co<sub>3</sub>O<sub>4</sub>microspheres were prepared by a hydrothermal and sintering method; oxygen vacancies induce local built-in electric field to boost battery performance.

10.1039/c8ta00975a article EN Journal of Materials Chemistry A 2018-01-01

The function of the interfacial effect caused by MoO<sub>2</sub>/Mo<sub>2</sub>C heterostructures was proved DFT and DOS calculations, promoting ultrastable cycling performance.

10.1039/c9ta03551f article EN Journal of Materials Chemistry A 2019-01-01

MnO@C microcages with robust sponge-like internal structure exhibit excellent Li-storage performance, holding favorable commercial potential as anodes for Li-ion batteries.

10.1039/c8ta02863j article EN Journal of Materials Chemistry A 2018-01-01

In operando XRD and TXM-XANES approaches demonstrate that structure evolution in NaNi1/3Fe1/3Mn1/3O2 during cycling follows a continuous change, the formation of nonequilibrium solid solution phase existence two phases. An O3′ P3′ monoclinic occur, redox couples Ni3+/Ni4+ Fe3+/Fe4+ are mainly responsible charge voltage range from 4.0 to 4.3 V. As service our authors readers, this journal provides supporting information supplied by authors. Such materials peer reviewed may be re-organized for...

10.1002/aenm.201601306 article EN Advanced Energy Materials 2016-09-02

A new capacitive process controlled anode material of graphene-based nitrogen-doped carbon sandwich nanosheets for sodium-ion batteries is reported.

10.1039/c6ta02139e article EN Journal of Materials Chemistry A 2016-01-01

Abstract The development of highly efficient and durable electrocatalysts is crucial for overall water splitting. Herein, the in situ scaffolding formation 3D Prussian blue analogues (PBAs) on a variety 2D or 1D metal hydroxides/oxides to fabricate hierarchical nanostructures first demonstrated. Typically, cobalt hydroxide oxide nanoarrays are used as precursor structural oriented template subsequent growth PBA nanocubes. mechanism study reveals that interfacial process can be reversibly...

10.1002/aenm.201802939 article EN Advanced Energy Materials 2018-12-06

Abstract Highly‐efficient cathode catalysts are the key to improve high rate cycle stability, avoid side reactions, and lower overpotential of lithium–oxygen batteries (LOBs). MXenes predicted be one most impressive materials for energy applications. In this work, catalytic capability Nb 2 C MXene is demonstrated with a uniform O‐terminated surface as material LOBs. The easily fabricated surface, activity CO sites, unique reaction kinetics contribute excellent electrocatalytic performance...

10.1002/aenm.202002721 article EN Advanced Energy Materials 2020-11-11

Abstract Vacancy engineering is one of the most effective strategies to introduce defects for improving electrocatalytic activities cobalt oxides. Recent intensive research has been conducted oxygen vacancies boosting Li–O 2 battery performance. However, it difficult examine efficiency cationic due their complicated preparation. Herein, a feasible method demonstrated into oxides via thermal treatment glycerolatocobalt (GlyCo) nanostructure. The formation GlyCo composed repeating CoOCoO...

10.1002/aenm.202001415 article EN Advanced Energy Materials 2020-09-02

Abstract Corona Virus Disease 2019 (COVID-19) is a recently emerged life-threatening disease caused by SARS-CoV-2. Real-time fluorescent PCR (RT-PCR) the clinical standard for SARS-CoV-2 nucleic acid detection. To detect early and control spreading on time, faster more convenient method detecting, RT-LAMP (reverse transcription loop-mediated isothermal amplification) was developed. RNA reverse amplification were performed in one step at 63 °C conditions, results can be obtained within 30...

10.1101/2020.03.02.20030130 preprint EN medRxiv (Cold Spring Harbor Laboratory) 2020-03-02

Abstract To enhance the performance of Li‐ion batteries, hierarchical carbon‐based hollow frameworks embedded with cobalt nanoparticles are prepared by pyrolysis core‐shell ZIF‐8@ZIF‐67 polyhedrals via a seed‐mediated growth method. The resultant composed N‐doped carbon as inner shells and porous graphitic outer shells. Benefiting from unique architecture large surface area good electrical conductivity, electrode materials exhibit electrochemical improved specific capacities, high‐rate...

10.1002/adfm.202006188 article EN Advanced Functional Materials 2020-09-13

Abstract Developing efficient cathode catalysts can largely promote the application of Li‐O 2 batteries (LOBs). In this work, core‐shell MoS 2− x @CNTs composite is synthesized via a hydrothermal method with annealing and NaBH 4 reduction post‐processing, which defective nanoflakes are homogeneously coated on 3D carbon nanotube (CNT) webs. It found that it delivers superior bifunctional catalytic activities toward both oxygen evolution reactions for LOBs. On one hand, charge re‐distribution...

10.1002/adfm.202108153 article EN Advanced Functional Materials 2021-11-10

Abstract 2D materials are attracting much attention in the field of cathode catalysts for lithium–oxygen batteries (LOBs) due to their layered structure, unique electronic properties, and high stability. However, different stacking layer structures trigger catalytic capabilities LOBs. In this work, tin selenide nanosheets with a black phosphorus‐like structure synthesized used as catalyst SnSe exposed stack (200) facets edge exhibit superior specific capacity over 20 783 mAh g −1 ultralong...

10.1002/aenm.202103910 article EN Advanced Energy Materials 2022-04-12

Hydrogen production via electrocatalytic water splitting is hampered by the slow kinetics of anodic oxygen evolution reaction (OER). To address this limitation, electrochemical hydrogen (HER) can be boosted with more favorable oxidation small organic molecules ideally driven renewable energies, producing valuable chemicals. In context, coupling methanol (MOR) simultaneous formate has garnered significant interest. Such a cost-effective process, meeting growing demand for energy storage and...

10.1021/acsenergylett.3c02678 article EN ACS Energy Letters 2024-02-07

Abstract Rechargeable lithium–oxygen batteries (LOBs) are regarded as one of the most promising candidates for next generation energy storage devices. Nevertheless, lack understanding relationships between structure, property, and performance catalysts limits rational development efficient cathode catalysts, therefore, hinders commercial application LOBs. Herein, a d‐band center regulation strategy is proposed to construct an isomorphism composite NiS 2 ‐CoS @nitrogen‐doped carbon (NiS @NC)...

10.1002/aenm.202204057 article EN Advanced Energy Materials 2023-02-15

Abstract Materials degradation—the main limiting factor for widespread application of alloy anodes in battery systems—was assumed to be worse sodium alloys than lithium analogues due the larger sodium-ion radius. Efforts relieve this problem are reliant on understanding electrochemical and structural degradation. Here we track three-dimensional chemical evolution tin batteries with situ synchrotron hard X-ray nanotomography. We find an unusual (de)sodiation equilibrium during...

10.1038/ncomms8496 article EN cc-by Nature Communications 2015-06-26

Benefiting from the synergetic effect between NiO and NiCo<sub>2</sub>O<sub>4</sub> heterostructure, urchin-like NiO–NiCo<sub>2</sub>O<sub>4</sub> microspheres exhibited favorable electrocatalytic performance for Li–O<sub>2</sub> batteries.

10.1039/c8nr08457b article EN Nanoscale 2018-11-26

Sodium-ion batteries (SIBs) have been attracting intensive attention at present as the most promising alternative to lithium-ion in large-scale electrical energy storage applications, due low-cost and natural abundance of sodium.

10.1039/c5ta04366b article EN Journal of Materials Chemistry A 2015-01-01

Abstract The three‐dimensional quantitative analysis and nanometer‐scale visualization of the microstructural evolutions a tin electrode in lithium‐ion battery during cycling is described. Newly developed synchrotron X‐ray nanotomography provided an invaluable tool. Severe changes occur first delithiation subsequent second lithiation, after which particles reach structural equilibrium with no further significant morphological changes. This reveals that initial lithiation play dominant role...

10.1002/anie.201310402 article EN Angewandte Chemie International Edition 2014-03-19
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