A5074490406- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- Conducting polymers and applications
- Graphene research and applications
- Electrocatalysts for Energy Conversion
- Carbon and Quantum Dots Applications
- Extraction and Separation Processes
- Advanced Battery Technologies Research
- Advanced Sensor and Energy Harvesting Materials
- Nanocluster Synthesis and Applications
- Advanced Photocatalysis Techniques
- Electrochemical sensors and biosensors
- Aerogels and thermal insulation
- Fuel Cells and Related Materials
- Graphene and Nanomaterials Applications
- TiO2 Photocatalysis and Solar Cells
- Chemical Synthesis and Characterization
- Thermochemical Biomass Conversion Processes
- Electrospun Nanofibers in Biomedical Applications
- Coal Properties and Utilization
- Geotechnical and Geomechanical Engineering
- Recycling and Waste Management Techniques
- Mining and Gasification Technologies
Henan Polytechnic University
2015-2024
State Administration of Work Safety
2020-2023
Jiaozuo University
2018-2022
Zhengzhou University of Industrial Technology
2020
Materialization of coal is one effective and clean pathways for its utilization. The microstructures coal-based carbon materials have an important influence on their functional applications. Herein, the microstructural evolution anthracite in temperature range 1000–2800 °C was systematically investigated to provide a guidance regulation materials. results indicate that microstructure undergoes change during carbonization-graphitization process. As increases, aromatic layers gradually...
Photocatalysts comprising nanosized TiO 2 particles on activated carbon (AC) were prepared by a sol-gel method. The /AC composites characterized X-ray diffraction (XRD), thermogravimetric (TG) analysis, nitrogen adsorption, scanning electron microscope (SEM), transmission (TEM), and energy dispersive (EDX). Their photocatalytic activities studied through the degradation of Rhodamine B (RhB) in reactor at room temperature under ultraviolet (UV) light irradiation effect loading cycles...
Unique high-capacity MnO2/porous graphitic carbon (MnO2/PGC) composites were fabricated by a mild and efficient in situ precipitation approach using PGC derived from coal tar pitch as the carbonaceous precursor KMnO4 manganese source. MnO2/PGC with reasonable surface areas (190–229 m2 g–1) retain superior structure of interconnected nanopores crystallite contain evenly distributed MnO2 modified on skeleton PGC, which can not only provide sufficient active sites for lithium-ion storage but...
Nb2O5, as a potential electrochemical material, has been studied extensively due to its superior volumetric stability and safety. In the paper, we report novel method for synthesis of T-Nb2O5/coal-based graphite (CBG) composite via solvothermal combined with calcination overcome limited low level ionic diffusivity electric conductivity Nb2O5. The homogeneous distribution Nb2O5 nanoparticles on coal-based surface can suppress accumulation reduce internal resistance. As an anode material...
Low-cost and earth-abundant coal has been considered to have a unique structural superiority as carbon sources of quantum dots (CQDs). However, it is still difficult obtain CQDs from raw due its compactibility lower reactivity, the majority current coal-based usually emit green or blue fluorescence. Herein, facile two-step oxidation approach (K2FeO4 pre-oxidation H2O2 oxidation) was proposed fabricate bandgap tunable anthracite. The K2FeO4 can not only weaken nonbonding forces among...
We propose a simple and low-cost synthesis of N–O–S co-doped hierarchical porous carbons (MGC-x) by direct carbonization calcium lignosulfonate. MGC-x possesses large surface area (∼1500 m2 g–1) high mesopore ratio (>40%) heteroatom content. In the three-electrode system, MGC-700 MGC-800 exhibit specific capacitances 417 312 F g–1 at 0.5 A 184 170 even 100 using 1 M H2SO4 electrolyte. Notably, there exists critical current density when evaluating rate capability electrodes, which is closely...