tailieunhanh - Cost-effective porous carbon materials synthesized by carbonizing rice husk and K2CO3 activation and their application for lithium-sulfur batteries

In this work, we developed highly porous activated carbon (AC) materials with micro/meso porosity through carbonizing rice husk and treating them with K2CO3. Elemental sulfur was then loaded to the micropores through a solution infiltration method to form rice husk-derived activated carbon (RHAC)aS composite materials. | Journal of Science Advanced Materials and Devices 4 2019 223e229 Contents lists available at ScienceDirect Journal of Science Advanced Materials and Devices journal homepage locate jsamd Original Article Cost-effective porous carbon materials synthesized by carbonizing rice husk and K2CO3 activation and their application for lithium-sulfur batteries Thanh-Tung Mai a Duc-Luong Vu a Dang- Chinh Huynh a Nae-Li Wu b Anh-Tuan Le c d a School of Chemical Engineering Hanoi University of Science and Technology Ha Noi Viet Nam b Department of Chemical Engineering National Taiwan University Taipei 106 Taiwan c Phenikaa University Nano Institute PHENA Phenikaa University Hanoi 12116 Viet Nam d Faculty of Materials Science and Engineering Phenikaa University Hanoi 12116 Viet Nam a r t i c l e i n f o a b s t r a c t Article history In this work we developed highly porous activated carbon AC materials with micro meso porosity Received 18 March 2019 through carbonizing rice husk and treating them with K2CO3. Elemental sulfur was then loaded to the Received in revised form micropores through a solution infiltration method to form rice husk-derived activated carbon RHAC @S 25 April 2019 composite materials. The as-prepared RHAC@S composites with mg cm 1 and mg cm 1 of Accepted 25 April 2019 Available online 30 April 2019 sulfur loading were tested as cathodes for lithium-sulfur Li-S batteries. The mg cm 1 sulfur loaded sample showed an initial discharge capacity of 1080 mA h g at a C rate. After 50 cycles of charge discharge tests at the current density of C the reversible capacity is maintained at 312 mA h g. The Keywords Rice husk RHAC material delivered a capacity of more than 300 mA h g at a current density of C. These results Cathode material demonstrate that the RHAC porous materials are very promising as cathode materials for the develop- Carbonization process ment of high-performance Li-S batteries. Activated carbon 2019 The .

• Vật lý
• Rice husk
• Cathode material
• Carbonization process
• Activated carbon
• Lithium sulfur batteries
• Advanced materials and devices
• Rice husk pellet
• Pyrolysis of rice husk pellet
• Temperature and residence time
• Charcoal products could get
• Vietnam Journal of Science and Technology
• Influence of synthesis factors on properties
• Influence of synthesis factors on properties of geopolymers
• Red mud and rice husk ash
• Rice husk ash
• Journal of Science and Technology
• Kinetic and thermodynamic adsorption
• Aqueous solution onto aluminium hydroxide coated rice husk ash
• Aluminium hydroxide coated rice husk ash
• Endothermic process
• RHA Al(OH)3
• Synthesis of pure silica
• Husk ash as an anti–caking agent
• Synthesis of pure silica from rice
• Fertilizer industry in Vietnam
• Vietnam Journal of Chemistry
• Preparation and characterization of nanosilica from rice husk ash
• Chemical treatment combined with calcination
• X ray diffraction
• X ray spectroscopy
• Tạp chí Khoa học công nghệ và Thực phẩm
• Evaluation on engineering properties
• Bottom ash and rice husk ash
• Coal bottom ash
• CFD researched on rice husk gasification
• Rice husk gasification
• A pilot fixed bed up draft system
• Air steam gasification
• Pure air and air steam mixture
• Tạp chí khoa học và công nghệ
• Synthesis of silica nanoparticles from rice husk ash
• Synthesis of silica nanoparticles
• The X ray diffraction
• The Fourier transform infrared
• Silica fume
• Alkali silica reaction
• Ultra high performance concrete
• UHPC containing rice husk ash
• Cr(VI) adsorption
• Red mud
• Material synthesized
• Maize growth
• Enhancing growth of maize
• Maize (Zea mays)
• Potential use of rice husk ash
• Aspergillus oryzae
• Agrobacterium tumefaciens mediated transformation
• Recombinant phytase
• Rice husk cultivation model
• Silica nanoparticles
• FTIR SEM and XRD
• Rice (Oryza sativa L ) husk
• Characterization of silica nanoparticles
• Rice Husk biochar
• Carpet waste
• FYM and PGPR mungbean
• Chemical properties of soil
• Nitrogen compound
• Nitrate onto rice husk biochar
• Nitrogen removal
• Low cost absorbent
• Recirculating aquaculture system
• Electric arc discharge furnace
• SiC fabrication from rice husk ash
• SiC fabrication
• Formation of SiC materials
• Journal of Chemistry
• Hydrochloric acid leaching
• Agricultural industry
• Silicon containing raw materials
• Cultivation of spirulina algae
• CO2 hidden from the smoke of rice husk boiler
• Spirulina platenisis
• Rice husk boiler
• Spirulina algae cultivation
• Agricultural by product
• Burning time
• Chemical binders
• Soil improvement
• Unsaturated polyester resin
• Recycled PET
• Polyester composites
• Recycled pet for rice husk
• Agriculture waste
• Methylene blue
• Aqueous solution onto activated rice husk
• Rice huck
• power plants
• CO2 emission reductions
• Clean Development
• Mechanis
• rice husk quantity
• Effect of hydrothermal treatment temperature
• Hydrothermal treatment temperature
• Vietnam Rice Husk Ash
• Rice hush ash
• Obtained calcium silicate
• Seed quality
• Seed borne fungi
• Rice seed
• Influence of silica resource
• Rice husk on structure
• HZSM 5 zeolite
• Structure of HZSM 5 sample synthesized