A5087098602- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- Fuel Cells and Related Materials
- Atmospheric Ozone and Climate
- Atmospheric chemistry and aerosols
- Conducting polymers and applications
- Atmospheric aerosols and clouds
- Advanced Sensor and Energy Harvesting Materials
- Electrocatalysts for Energy Conversion
- Technology and Security Systems
- Covalent Organic Framework Applications
- Advancements in Battery Materials
- Solar-Powered Water Purification Methods
- Smart Materials for Construction
- Electrochemical sensors and biosensors
- Advanced Materials and Mechanics
- Inorganic Fluorides and Related Compounds
Inner Mongolia University
2025
Hebei University of Technology
2024
Beijing Institute of Technology
2014-2023
Sun Yat-sen University
2022
Lanzhou Institute of Chemical Physics
2018-2020
Chinese Academy of Sciences
2018-2020
Lanzhou City University
2018-2020
State Key Laboratory of Solid Lubrication
2018-2020
University of Chinese Academy of Sciences
2019
An “acetonitrile/water in salt” electrolyte with non-flammability, high conductivity, a stability window and wide applicable temperature range enables high-performance supercapacitors.
Lowering platinum (Pt) loadings without sacrificing power density and durability in fuel cells is highly desired yet challenging because of the high mass transport resistance near catalyst surfaces. We tailored three-phase microenvironment by optimizing ionomer incorporating ionic covalent organic framework (COF) nanosheets into Nafion. The mesoporous apertures 2.8 to 4.1 nanometers appendant sulfonate groups enabled proton transfer promoted oxygen permeation. activity Pt peak cell with...
Abstract Aqueous electrochemical energy storage (EES) devices have attracted considerable attention due to their advantages of low cost and high safety. However, the freeze aqueous electrolytes usually causes dramatic loss ionic conduction capacity, thereby seriously restricting low‐temperature application such EES devices. Herein, different from traditional frozen electrolytes, a Zn(ClO 4 ) 2 salty ice with superior conductivity (1.3 × 10 −3 S cm −1 even at −60 °C) is discovered. It...
Abstract 2D ion‐intercalated metal oxides are emerging promising new electrodes for supercapacitors because of their unique layered structure as well distinctive electronic properties. To facilitate application, fundamental study the charge storage mechanism is required. Herein, it demonstrated that application in situ Raman spectroscopy and electrochemical quartz crystal microbalance with dissipation monitoring (EQCM‐D), provides a sufficient basis to elucidate typical cation‐intercalated...
Acetonitrile suppressing precipitation of NaClO<sub>4</sub> originates from transforming the cation–anion aggregate structure to contact ion pairs and/or solvent separated pairs.
Dual ion batteries (DIBs) have recently attracted ever-increasing attention owing to the potential advantages of low material cost and good environmental friendliness. However, safety hazards, cost, concerns mainly resulted from commonly used nonaqueous organic solvents severely hinder practical application DIBs. Herein, a hybrid aqueous/nonaqueous water-in-bisalt electrolyte with both broad electrochemical stability window excellent performance is developed. The lithium-based DIB assembled...
Abstract Pseudocapacitance‐induced electrochemical actuators (EC‐actuators) have attracted great attention in robots and artificial intelligence technologies. Despite major efforts to design such EC‐actuators, a molecular‐level understanding of the deformation mechanism is still lacking. Here, reversible freestanding MnO 2 /Ni bilayer film demonstrated situ atomic force microscopy, Raman spectroscopy, density functional theory simulation are used study origin deformation. The results show...
A “water-in-salt” gel electrolyte with superior water-retention capability enables aqueous flexible supercapacitors to operate at high temperature up 120 °C.
Sodium nitrate is a main component of aging sea salt aerosol, and its phase behavior has been studied repeatedly with wide ranges observed in the efflorescence relative humidity (RH) particular. Studies dynamics NaNO3 droplets deposited on ZnSe substrate are reported, using an situ Fourier transform infrared attenuated total reflection (FTIR-ATR) technique. The time-dependence spectra aerosols accompanying step changes RH have measured high signal-to-noise ratio. From IR difference recorded,...
We present an effective electrolyte pH-regulation strategy for cation-intercalated manganese oxides to extend the voltage window of aqueous supercapacitors.
Abstract Electrochemical quartz crystal microbalance (EQCM) can be used to study the charge storage mechanisms of supercapacitors because its excellent accuracy in mass change, and a homogeneous ultrathin sample coating is strongly required for accurate measurement. However, it difficult obtain such by frequently methods. Here vacuum filtration‐and‐transfer (VFT) technique reported achieve this target. To prove universality method, six materials with different dimensions are selected as...
“Water-in-salt” (WIS) electrolytes can enlarge the electrochemical stability window of aqueous electrolytes, and thus help to achieve safe high-voltage energy storage devices. WIS use highly concentrated salts, which raises an important concern about temperature availability. Here we demonstrate temperature-dependent structure performance evolution LiTFSI/H 2 O with different concentrations (1, 5 21 m (mol/kg)) using Raman spectroscopy molecular dynamics simulations. The electrolyte is...