A5012651006- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Advanced battery technologies research
- Graphene research and applications
- Advanced Battery Materials and Technologies
- Photocathodes and Microchannel Plates
- Advanced Sensor and Energy Harvesting Materials
- CCD and CMOS Imaging Sensors
- Particle Accelerators and Free-Electron Lasers
- Advanced Optical Sensing Technologies
- Conducting polymers and applications
- Electrocatalysts for Energy Conversion
- Advanced X-ray Imaging Techniques
- Particle Detector Development and Performance
- Electrochemical sensors and biosensors
- Geophysics and Sensor Technology
- Optical Systems and Laser Technology
- Radiation Detection and Scintillator Technologies
- Digital Radiography and Breast Imaging
- Atomic and Subatomic Physics Research
- Seismology and Earthquake Studies
- Pulsars and Gravitational Waves Research
- Astrophysical Phenomena and Observations
- Catalysis for Biomass Conversion
- Advanced X-ray and CT Imaging
National University of Singapore
2023-2025
Beihua University
2019-2025
Xi'an Institute of Optics and Precision Mechanics
2010-2023
Chinese Academy of Sciences
2011-2021
China University of Petroleum, East China
2021
Fujian Agriculture and Forestry University
2020
Harbin Engineering University
2014-2018
Harbin University
2016-2018
Harbin University of Science and Technology
2018
University of Chinese Academy of Sciences
2011
Supercapacitors, also known as electrochemical capacitors, can provide much faster charge–discharge, greater power density, and cyclability than batteries, but they are still limited by lower energy densities (or the amount of stored per unit volume). Here, a novel strategy for synthesis functional pillared graphene frameworks, in which fragments in‐between sheets, through simple thermal‐treatment ozone (O 3 )‐treated oxide at very low temperature 200 °C is reported. Due to its high packing...
Recently, macroporous graphene monoliths (MGMs), with ultralow density and good electrical conductivity, have been considered as excellent pressure sensors due to their elasticity a rapid rate of recovery. However, MGMs can only exhibit sensitivity when the strain is higher than 20%, which undesirable for touch‐type sensors, such artificial skin. Here, an innovative method fabrication freestanding flexible film bubbles decorated on honeycomb‐like network demonstrated. Due switching effect...
Abstract Limited by 2D geometric morphology and low bulk packing density, developing graphene‐based flexible/compressible supercapacitors with high specific capacitances (gravimetric/volumetric/areal), especially at rates, is an outstanding challenge. Here, a strategy for the synthesis of free‐standing graphene ribbon films (GRFs) high‐performance flexible compressible through blade‐coating interconnected oxide ribbons subsequent thermal treatment process reported. With ultrahigh mass...
N-doped porous carbon materials possess abundant pores and nitrogen functionalities, holding significant potential for supercapacitors. However, achieving precise control of the pore structure to enhance electrochemical performance remains challenging in large-scale production commercial electrode materials. Herein, Chinese yam, a rhizome plant rich dopamine, is selected as precursor prepare N,O-codoped hierarchical (N/O-PC-3) via one-step carbonization activation process. The precisely...
A nitrogen-doped porous carbon building (N-PCB) was constructed using interconnected ultra-small nanosheets through the carbonization of biomass (<italic>Auricularia</italic>).
High‐performance photocatalysts should have highly crystallized nanocrystals (NCs) with small sizes, high separation efficiency of photogenerated electron–hole pairs, fast transport and consumption photon‐excited electrons from the surface catalyst, adsorption organic pollutant, suitable band gap for maximally utilizing sunlight energy. However, design synthesis these versatile structures still remain a big challenge. Here, we report novel strategy ultrasmall graphene–ZnFe 2 O 4...
Abstract The introduction of surface functional groups onto graphene can provide additional pseudocapacitance for supercapacitors. However, the compensation loss electrical conductivity arising from disruption conjugated system remains a big challenge. Here, novel strategy is reported design oxygen clusters distributed in with “paddy land” structure via low‐temperature annealing process. Moreover, distribution, content, and variety reduced oxide (RGO) be easily adjusted by temperature time....
Abstract The development of stable electrode materials for sodium‐ion batteries (NIBs) with excellent rate capacity, high volumetric/gravimetric and ultralong‐term cycling stability still remains a challenge. Herein, novel strategy the synthesis edge‐nitrogen‐rich carbon dots pillared graphene blocks (N‐CDGB) through self‐polymerization aniline into oxide blocks, subsequent carbonization is developed. Due to bulk density (1.5 g cm −3 ) integrated lamellar structure large edge‐interlayer...
The well‐matched electrochemical parameters of positive and negative electrodes, such as specific capacitance, rate performance, cycling stability, are important for obtaining high‐performance asymmetric supercapacitors. Herein, a facile cost‐effective strategy is demonstrated the fabrication 3D densely stacked graphene (DSG) graphene‐MnO 2 (G‐MnO ) architectures electrode materials supercapacitors (ASCs) by using MnO ‐intercalated graphite oxide (GO‐MnO precursor. DSG has structure with...
Abstract Carbon‐based supercapacitors store charge through the adsorption of electrolyte ions onto carbon surface. Therefore, it would be more attractive for enhanced storage if locations storing can extended from surface to space. Here, a novel spatial mechanism based on counterion effect Fe(CN) 6 3− bridged by oxygen groups and confined into honeycomb‐carbon frameworks is presented, which provide additionally electrical double‐layer capacitances in negative potential region...
Graphene fiber based micro-supercapacitors (GF micro-SCs) have attracted great attention for their potential applications in portable and wearable electronics. However, due to strong π–π stacking of nanosheets graphene fibers, the limited ion accessible surface area slow diffusion rate leads low specific capacitance poor performance. Here, authors report a strategy synthesis vertically oriented nanoribbon with highly exposed through confined-hydrothermal treatment interconnected oxide...
Retaining fast electron and ion transport of electrode materials at high mass loadings holds significant importance to supercapacitors. Carbon-based with ultrathin electrodes or small amounts active on the current collectors, that is, a low loading (<1 mg cm–2), have achieved capacitances power densities charging/discharging rate. Yet, leads based area device and, consequently, poor energy. Simultaneously, it cannot be readily scaled commercial practical levels above 10 cm–2. Here, we...
Fe(CN)<sub>6</sub><sup>3−</sup> ion-modified MnO<sub>2</sub>/graphene ribbons can provide extra pseudocapacitance from the Fe(CN)<sub>6</sub><sup>3−</sup>/Fe(CN)<sub>6</sub><sup>4−</sup> redox reaction for high energy density supercapacitors.