Ruchun Li

ORCID: 0000-0003-1892-0844
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About
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Research Areas
  • Electrocatalysts for Energy Conversion
  • Advanced battery technologies research
  • Advanced Photocatalysis Techniques
  • Supercapacitor Materials and Fabrication
  • Fuel Cells and Related Materials
  • Advancements in Battery Materials
  • Electrochemical Analysis and Applications
  • Geophysics and Sensor Technology
  • Advanced Fiber Optic Sensors
  • Chalcogenide Semiconductor Thin Films
  • Ionic liquids properties and applications
  • Gas Sensing Nanomaterials and Sensors
  • Ga2O3 and related materials
  • Advanced ceramic materials synthesis
  • Magneto-Optical Properties and Applications
  • Layered Double Hydroxides Synthesis and Applications
  • Catalytic Processes in Materials Science
  • Covalent Organic Framework Applications
  • Process Optimization and Integration
  • Metallurgical Processes and Thermodynamics
  • ZnO doping and properties
  • Metallurgy and Material Forming
  • Advanced Memory and Neural Computing
  • Recycling and utilization of industrial and municipal waste in materials production
  • Quantum Dots Synthesis And Properties

Yunnan Normal University
2023-2025

Institute of Electrical Engineering
2023-2024

Chinese Academy of Sciences
2023-2024

Ji Hua Laboratory
2021-2024

University of Chinese Academy of Sciences
2023-2024

Sun Yat-sen University
2019-2022

Wuhan University of Technology
2021-2022

China University of Petroleum, East China
2019-2021

Zhejiang University of Technology
2013-2019

Jinan University
2014-2017

Abstract We report a new environmentally-friendly synthetic strategy for large-scale preparation of 16 nm-ultrathin NiCo based layered double hydroxides (LDH). The Ni 50 Co -LDH electrode exhibited excellent specific capacitance 1537 F g −1 at 0.5 A and 1181 even current density as high 10 , which 50% cobalt doped enhances the electrical conductivity porous ultrathin structure is helpful with electrolyte diffusion to improve material utilization. An asymmetric ultracapacitor was assembled...

10.1038/srep18737 article EN cc-by Scientific Reports 2016-01-12

Rational design of unique pre-catalysts for highly active catalysts toward catalyzing the oxygen evolution reaction (OER) is a great challenge. Herein, Co-derived pre-catalyst that allows gradual exposure CoOOH acts as center OER catalysis obtained by both phosphate ion surface functionalization and Mo inner doping. The catalyst reveals an excellent activity with low overpotential 265 mV at current density 10 mA cm-2 good durability in alkaline electrolyte, which comparable to majority...

10.1002/advs.201902830 article EN cc-by Advanced Science 2020-01-21

A flexible asymmetric supercapacitor (ASC) based on a CoAl-layered double hydroxide (CoAl-LDH) electrode and reduced graphene oxide (rGO) was successfully fabricated. The CoAl-LDH as positive synthesized by directly growing nanosheet arrays carbon cloth (CC) through facile hydrothermal method, it delivered specific capacitance of 616.9 F g−1 at current density 1 g−1. rGO negative coating the CC via simple dip-coating method revealed 110.0 2 Ultimately, advanced ASC offered broad voltage...

10.1007/s40820-017-0134-8 article EN cc-by Nano-Micro Letters 2017-02-18

The heterointerface of fcc 0.42 Ru–Sn catalyst exhibits strong interfacial synergy for balancing H 2 adsorption and enhancing alkaline HOR activity, thereby significantly improving the performance anion exchange membrane fuel cells.

10.1039/d4ee02010c article EN Energy & Environmental Science 2024-01-01

One-dimensional (1D, wire- and fiber-shaped) supercapacitors have recently attracted interest due to their roll-up, micrometer size potential applications in portable or wearable electronics. Herein, a 1D wire-shaped electrode was developed based on Fe3O4 nanosheet arrays connected the Fe wire, which prepared via oxidation of wire 0.1 M KCl solution (pH 3) with O2-rich environment under 70 °C. The obtained displayed high specific capacitance (20.8 mF cm-1 at 10 mV s-1) long cycling lifespan...

10.1007/s40820-017-0147-3 article EN cc-by Nano-Micro Letters 2017-05-17

A method for efficiently catalyzing the oxygen evolution reaction (OER) represents a top priority water electrolysis due to its multistep electron transfer pathway and sluggish kinetics. The OER activity can be promoted by generating high valence transition-metal species in electrocatalysts. In present work, versatile anion–cation double doped Co3O4 (Se/Ni-Co3O4) microtube architecture is innovatively fabricated as an electrocatalyst, combining reliable template-free solvothermal strategy...

10.1021/acssuschemeng.9b02558 article EN ACS Sustainable Chemistry & Engineering 2019-06-10

Transition metal oxides (TMOs) have acquired much attention on account of their abundant reserves and variable components, but sluggish charge transfer rate, limited electrochemically active sites, poor conductivity hamper extensive applications in the hydrogen evolution reaction (HER). Herein, we synthesized nitrogen-doped CoMoO4 clusters constituted nanosheets directly supported nickel foam (N-CoMoO4/NF) by combining a hydrothermal process low-temperature ammonia annealing treatment....

10.1021/acssuschemeng.0c02283 article EN ACS Sustainable Chemistry & Engineering 2020-05-21

The development of cost-effective electrocatalysts with high activity and sufficient stability for hydrogen evolution reaction (HER) is crucial the widespread application water electrolysis sustainable H2 production. Transition metal oxides are desirable alternatives to replace benchmark Pt-based HER because their cost effectiveness, facile synthesis, versatile compositions, easy electronic structure tuning. However, most available transition show poor performance catalysis. Here, it...

10.1002/smtd.202100246 article EN Small Methods 2021-05-13

The development of highly active bifunctional electrocatalysts is crucial to the sluggish oxygen reduction reaction/oxygen evolution reaction (ORR/OER) for efficient wearable Zn–air batteries (ZAB). Fe-Nx-C moieties anchored on carbon supports emerge as a desirable alternative ORR catalysts but its OER activity suffers from low catalytic performance and stability. Herein, N-doped carbon-encapsulated Fe3C MnO nanoparticles composite (FeMn-NC) was developed using simple one-step pyrolysis...

10.2139/ssrn.5085813 preprint EN 2025-01-01
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