Fenyun Yi

ORCID: 0000-0002-8469-8615
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About
Contact & Profiles
Research Areas
  • Supercapacitor Materials and Fabrication
  • Advancements in Battery Materials
  • Advanced battery technologies research
  • Advanced Battery Materials and Technologies
  • Conducting polymers and applications
  • Electrocatalysts for Energy Conversion
  • MXene and MAX Phase Materials
  • Graphene research and applications
  • Advanced Battery Technologies Research
  • Electrochemical sensors and biosensors
  • Nanomaterials for catalytic reactions
  • Electrochemical Analysis and Applications
  • Analytical Chemistry and Sensors
  • Advanced Sensor and Energy Harvesting Materials
  • Graphene and Nanomaterials Applications
  • Electronic and Structural Properties of Oxides
  • Advanced Photocatalysis Techniques
  • Advanced oxidation water treatment
  • Gas Sensing Nanomaterials and Sensors
  • Advancements in Solid Oxide Fuel Cells
  • Recycling and Waste Management Techniques
  • Metal-Organic Frameworks: Synthesis and Applications
  • Catalysis and Oxidation Reactions
  • Nanoporous metals and alloys
  • Covalent Organic Framework Applications

South China Normal University
2016-2025

Guangdong Institute of New Materials
2019-2022

Guangdong University of Education
2017

Sun Yat-sen University
2007-2008

Zhejiang Normal University
2002-2003

A combined delicate micro-/nano-architecture and corresponding surface modification at the nanometer level can co-tailor physicochemical properties to realize an advanced supercapacitor electrode material. Herein, nanosheets-assembled nickel-cobalt-layered double hydroxide (NiCo-LDH) hollow micro-tunnels strongly coupled with higher-Fermi-level graphene quantum dots (GQDs) are reported. The unique structure endows electrolyte accessible more electroactive sites, while 2D nanosheets have...

10.1002/smll.202201286 article EN Small 2022-04-18

Inspired by supermolecular self-assembly strategy, the N, P co-doped reduced graphene oxide (NP-rGO) material is fabricated heat treatment from system of GO/MP (melamine and phytic acid supramolecular polymer). Herein, MP acts as not only a "sacrifice template" to promote formation uniform three-dimensional (3D) porous structure but also spacer hinder sheets aggregate, well precursor nitrogen phosphorus for co-doping. The characterization results indicate that NP-rGO has 3D with loose-packed...

10.1021/acsaem.9b00204 article EN ACS Applied Energy Materials 2019-06-03

The main limitations of aqueous nickel-zinc batteries are their relatively low energy density and short cycle life, which inextricably linked to the nickel-based cathodes. In this study, a low-crystallinity flower-like cobalt-doped nickel hydroxide (α-Ni(OH)2-0.2Co) is constructed by hydrothermal reaction employed as high-energy-density cathode for rechargeable batteries. Cobalt doping initiates formation structure lowers material's crystallinity, conferring it with larger specific surface...

10.1021/acsami.4c19500 article EN ACS Applied Materials & Interfaces 2025-01-21

Interconnected carbon encapsulated silicon nanoparticles were fabricated via molecular self-assembly and in situ carbonization strategies, which can effectively dissipate expansion strain enhance the lithium-ion reaction kinetics.

10.1039/d3ta00388d article EN Journal of Materials Chemistry A 2023-01-01
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