A5101581681- Supercapacitor Materials and Fabrication
- Electrocatalysts for Energy Conversion
- Conducting polymers and applications
- Advanced battery technologies research
- Advanced Sensor and Energy Harvesting Materials
- Fuel Cells and Related Materials
- Advancements in Battery Materials
- Aerogels and thermal insulation
- Extraction and Separation Processes
- Carbon and Quantum Dots Applications
- Higher Education and Teaching Methods
- Ionic liquids properties and applications
- Geomechanics and Mining Engineering
- Nanomaterials for catalytic reactions
- Photochemistry and Electron Transfer Studies
- Oxidative Organic Chemistry Reactions
- Educational Technology and Assessment
- Quantum Dots Synthesis And Properties
- Photochromic and Fluorescence Chemistry
- Advanced Sensor and Control Systems
- Polydiacetylene-based materials and applications
- Electrochemical sensors and biosensors
- Advanced Battery Materials and Technologies
- Nanoporous metals and alloys
- Free Radicals and Antioxidants
Henan Normal University
2008-2020
Xinxiang University
2014-2018
Ministry of Education
2014-2017
Green Chemistry
2014
Min Sheng General Hospital
2010
Wuhan University
2008
Nanjing University of Finance and Economics
2008
Amaranthus waste is reported to be a single precursor synthesize highly porous nitrogen-doped carbon as superior oxygen reduction electrocatalyst.
A series of nitrogen and oxygen enriched porous carbons are prepared from poly-N-phenylethanolamine (PNPEA) polyaniline (PANI) conducting polymers through pyrolysis, chemical activation, oxidation processes. Ar or N2-adsorption, Fourier transform infrared, X-ray photoelectron spectroscopy used to characterize the surface areas, pore volumes, compositions, content. Mikhail Brunauer micropore analytical method (MP method) is successfully analyze size distribution samples. The electrochemical...
The urgent need for sustainable energy development depends on the progress of green technologies, which have steered hot research areas into environmentally benign approaches via inexpensive precursors and abundant resources obtained directly from nature devices such as fuel cells supercapacitors. By using fermented rice starting materials, we herein demonstrate a facile, scalable approach to synthesize porous N-doped carbon spheres characterised by high specific surface (2105.9 m2 g−1)...
A green strategy has been developed for synthesizing nitrogen-doped carbon dots (N-CDs) via hydrothermal treatment of willow leaves. The supernatant exhibits strong blue fluorescence under UV radiation and can be directly used as a fluorescent ink, while the solid product with pyrolysis possesses excellent electrocatalytic activity highly efficient oxygen reduction reaction great stability methanol/CO tolerance superior to commercial Pt/C catalyst.
The match between sustainable electrode materials and electrolytes is the key to achieve high-rate electrochemical capacitors.
<italic>S</italic><sub>micro</sub>/<italic>S</italic><sub>BET</sub> is expected to be a supercapacitor indicator, thus simplifying the screening of carbon materials for supercapacitors.
Carbon electrode materials are fabricated from bean curd to replace costly Pt-based electrodes degrade methyl red (MR) as self-driven by a multilayer linkage triboelectric nanogenerator (ML-TENG). With the sponge buffer layer and precharge injection, peak open-circuit voltage, Voc, short-circuit current, Isc, maximum power density of ML-TENG can reach remain stable at 1300 V, 1.2 mA, 7.4 W m–2 (load resistance = 500 KΩ), respectively. Using electric generated such an updated TENG, highly...
An efficient soft-template method is proposed for the synthesis of peanut shell-like porous carbon as high-performance supercapacitor electrode materials. The procedure based on pyrolysis and chemical activation processes using N-phenylethanolamine precursor KOH agent. In a three-electrode system, resultant material has specific capacitance 356 F g–1 at 1 A good stability over 1000 cycles. Besides, high current density 30 g–1, it 249 maintains 96% after 10 000 two-electrode cell...
Electric double layer capacitors (EDLCs) usually show high rate performance and long cycling spans but inferior specific capacitance, which are mainly created by restriction of the charge storage mechanism. To improve capacitive performance, traditional methods include enlarging surface area, optimizing porous structures, readjusting functional groups through heteroatom doping to electrode materials. Besides that, another promising approach is suggested, enhance roughness materials for ion...
Sunlight can be directly absorbed by many coloured solids or liquids to re-generate heat but the temperature achievable is usually below 100 °C. Consequently, thermally responsive physical and/or chemical processes that effectively utilise this almost free low solar are becoming increasingly important, considering inevitable change in energy supply from fossil fuels renewable sources near future. In work, thermochromic and solvatochromic behaviour of chloro-Ni(II) complexes was investigated...
This paper reports a simple one-step growth of hierarchically micro/nanostructured porous metallic copper microspheres with high yield at room temperature. The key strategy is to use phenol and ascorbic acid as porogen reducing agents, respectively, induce the hierarchical micro/nanostructure. samples are characterized by X-ray diffraction, scanning electron microscopy, transmission nitrogen adsorption. It found that morphology structure Cu highly dependent on added. Compared commercial...
A rotary disc-structured triboelectric nanogenerator (rd-TENG) on the basis of free-standing electrification has been designed, where aluminum composite panel not tailored to stator becauseit is commercially available and cost-effective, good electronic conductivity, easily processed. With rotating speed increasing from 200 1000 rpm, short-circuit current (Isc) sharply enhanced 50 μA μA, while measured open-circuit voltage (Voc) transferred charge (Qtr) almost keep constant, 600 V 0.4 μC,...
N-, S-, and P-tridoped carbon nanorings are sustainably derived from worst-weed that can serve as a metal-free selective ORR electrocatalyst.
Translucent composite films of poly(vinylidene fluoride), ionic liquid, and nickel complexes are successfully fabricated using thermal modulation dissolution, casting, drying. These exhibit high stability in ambient storage reversible thermochromic responses air at temperatures achievable under sunlight, promising intelligent windows for controlling solar heat entering the built environment.