Synthesis of Carbon-Coated LiFePO4Cathode Material by One-Step Microwave-Assisted Pyrolysis of Ionic Liquid Process

NANO ◽  
2016 ◽  
Vol 11 (01) ◽  
pp. 1650004 ◽  
Author(s):  
Yanshuang Meng ◽  
Zhong Zhang ◽  
Wangqing Han ◽  
Yue Zhang ◽  
Fuliang Zhu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Carbon Source ◽  
Carbon Coating ◽  
Electrode Materials ◽  
Electronic Conductivity ◽  
Carbon Film ◽  
Microwave Assisted ◽  
Carbon Coated ◽  
One Step ◽  
Liquid Process

A one-step microwave-assisted pyrolysis of ionic liquid process is developed to synthesize carbon-coated LiFePO4by using the ionic liquid [BMIm]N(CN)2as a carbon source. A thin layer of uniform and nanoscaled carbon film is formed on the LiFePO4particles surface with a strong interface. The electrochemical properties of LiFePO4are improved due to the carbon coating which increases the electronic conductivity of LiFePO4. The results indicate that the microwave-assisted pyrolysis of ionic liquid process is a rapid and efficient method to prepare carbon-coated LiFePO4material and other carbon-coated electrode materials.

Ionothermal synthesis of microporous and mesoporous carbon aerogels from fructose as electrode materials for supercapacitors

2016 ◽  
Vol 4 (12) ◽  
pp. 4497-4505 ◽  
Author(s):  
Xiao-Xiao Lin ◽  
Bin Tan ◽  
Lu Peng ◽  
Zhao-Feng Wu ◽  
Zai-Lai Xie
Keyword(s):  
Ionic Liquid ◽  
Porous Carbon ◽  
Mesoporous Carbon ◽  
Electrode Materials ◽  
Carbon Aerogels ◽  
Hierarchical Porous Carbon ◽  
Ionothermal Synthesis ◽  
Hierarchical Porous ◽  
One Step ◽  
Iron Based

In the present work, a series of hierarchical porous carbon monoliths were prepared from fructoseviaa one-step ionothermal carbonization approach using an iron-based ionic liquid as solvent, and a porogenic agent.

scholarly journals A Novel One-Pot and One-Step Microwave-Assisted Cyclization-Methylation Reaction of Amino Alcohols and Acetylated Derivatives with Dimethyl Carbonate and TBAC

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Adrián Ochoa-Terán ◽  
Leticia Guerrero ◽  
Ignacio A. Rivero
Keyword(s):  
Ionic Liquid ◽  
Dimethyl Carbonate ◽  
Amino Alcohols ◽  
Diethyl Carbonate ◽  
One Pot ◽  
Microwave Assisted ◽  
Methylation Reaction ◽  
One Step ◽  
Better Than

A simple and efficient microwave-assisted methodology for the synthesis of 4-substituted-3-methyl-1,3-oxazolidin-2-ones from amino alcohols catalyzed by a ionic liquid was developed. This novel one-pot and one-step cyclization-methylation reaction represents an easier and faster method than any other reported protocols that can be used to obtain the desired products in good yields and high purity. Applying microwave irradiation at 130°C in the presence of TBAC, dimethyl carbonate acts simultaneously as carbonylating and methylating agent and surprisingly promotes anin situbasic trans esterification when aN-acetylated amino alcohol is used as starting material. Furthermore, dimethyl carbonate worked better than diethyl carbonate in performing this reaction.

Synthesis and Characterization of LiFePO4/C Composite Obtained by One-Step Solid-State Reaction Using Solid PVA as Carbon Source

2009 ◽  
Vol 1170 ◽  
Author(s):  
Limei Yang ◽  
Guangchuan Liang ◽  
Li Wang ◽  
Xiaoke Zhi ◽  
Xiuqin Ou
Keyword(s):  
Particle Size ◽  
Solid State ◽  
Carbon Source ◽  
Discharge Capacity ◽  
Cathode Materials ◽  
Solid State Reaction ◽  
Electronic Conductivity ◽  
Cycle Performance ◽  
High Electronic Conductivity ◽  
One Step

AbstractLiFePO4/C composite cathode materials were synthesized by one-step solid-state reaction using FePO4 as main raw materials and solid PVA (Polyvinyl Alcohol) as a reductive agent and carbon source. The sample was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), particle size analysis and charge-discharge test. The results indicated that the carbon generated from the pyrogenation of PVA did not affect the olivine structure of the cathode materials but considerably improved its high-rate discharge ability and cycle performance. The initial discharge capacity of the sample was 149.7, 133.1, 120.6, 93.0 mAh/g at 0.2C, 1C, 2C, 5C respectively, and the discharge capacity could reach 90 mAh/g at 5C rates after 80 cycles. It is believed that the carbon coating could lead to small particle size and high electronic conductivity of active materials, thus leading to excellent electrochemical performance of LiFePO4/C cathode materials.

Hollow sphere structured V2O3@C as an anode material for high capacity potassium-ion batteries

2020 ◽  
Vol 8 (26) ◽  
pp. 13261-13266 ◽  
Author(s):  
Fei Chen ◽  
Shuo Wang ◽  
Xiao-Dong He ◽  
Jia-Ying Liao ◽  
Qiao Hu ◽  
...  
Keyword(s):  
Anode Material ◽  
Volume Change ◽  
Hollow Sphere ◽  
Carbon Coating ◽  
Electronic Conductivity ◽  
Hollow Spheres ◽  
High Capacity ◽  
Hollow Structure ◽  
Rate Performance ◽  
Carbon Coated

Carbon-coated V2O3 hollow spheres are synthesized by a solvothermal route, with promising cycling stability and rate performance for PIBs. The homogeneous carbon coating improves the electronic conductivity and the hollow structure buffers the volume change during cycling.

scholarly journals Optimization of the ionic liquid-microwave assisted one-step biodiesel production process from wet microalgal biomass

2018 ◽  
Vol 171 ◽  
pp. 1397-1404 ◽  
Author(s):  
Suzana Wahidin ◽  
Ani Idris ◽  
Noordin Mohd Yusof ◽  
Nor Hisham Haji Kamis ◽  
Sitti Raehanah Muhamad Shaleh
Keyword(s):  
Ionic Liquid ◽  
Production Process ◽  
Biodiesel Production ◽  
Microalgal Biomass ◽  
Microwave Assisted ◽  
One Step

Molten salt synthesis of nitrogen doped porous carbon: a new preparation methodology for high-volumetric capacitance electrode materials

2016 ◽  
Vol 4 (25) ◽  
pp. 9832-9843 ◽  
Author(s):  
Tian Ouyang ◽  
Kui Cheng ◽  
Yinyi Gao ◽  
Shuying Kong ◽  
Ke Ye ◽  
...  
Keyword(s):  
Carbon Source ◽  
Molten Salt ◽  
Porous Carbon ◽  
Electrode Materials ◽  
Low Cost ◽  
Three Dimensional ◽  
Molten Salt Synthesis ◽  
Nitrogen Doped ◽  
One Step ◽  
Volumetric Capacitance

Here, a novel and one-step molten salt synthesis of three-dimensional, densely nitrogen-doped porous carbon (NPC) material by using low-cost and eco-friendly tofu as the nitrogen-containing carbon source is proposed.

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