Electrochemical properties of straw-based carbon materials in Li<sub>2</sub>SO<sub>4</sub> electrolyte

CHEN Zhanghao; MA Hongfang; ZHU Hanfei; WANG Xiaodan; LIU Xinxin; XU Zhaogui; YANG Juanjuan

doi:10.11949/j.issn.0438-1157.20171622

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Electrochemical properties of straw-based carbon materials in Li₂SO₄ electrolyte

更新时间：2025-12-10

- Electrochemical properties of straw-based carbon materials in Li₂SO₄ electrolyte
- CIESC Journal Issue 7, Pages: 3293-3299(2018)
- 作者机构：
  
  1. 山东建筑大学材料科学与工程学院,山东,济南,250101
  2. 齐鲁工业大学(山东省科学院)环境科学与工程学院,山东,济南,250353
  3. 齐鲁工业大学(山东省科学院)化学与制药工程学院,山东,济南,250353
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20171622
  CLC： B32
- Online First：05 July 2018，
  
  Published：05 July 2018
- 稿件说明：
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CHEN Zhanghao, MA Hongfang, ZHU Hanfei, et al. Electrochemical properties of straw-based carbon materials in Li₂SO₄ electrolyte[J]. CIESC Journal, 2018, (7): 3293-3299. DOI: 10.11949/j.issn.0438-1157.20171622.
DOI：

CHEN Zhanghao, MA Hongfang, ZHU Hanfei, et al. Electrochemical properties of straw-based carbon materials in Li₂SO₄ electrolyte[J]. CIESC Journal, 2018, (7): 3293-3299. DOI: 10.11949/j.issn.0438-1157.20171622. DOI：

摘要

以生物质秸秆为碳源，利用水热结合KOH活化法制备了多孔碳材料，对其结构与形貌进行了表征。采用三电极体系，在不同浓度的Li2SO4电解液中，对多孔碳电极进行循环伏安、恒电流充放电和交流阻抗测试。结果表明，在0.5 mol·L-1的Li2SO4电解液中，秸秆基生物质碳材料呈现出较好的电化学性能。当电流密度为0.5 A·g-1时，比电容可达224 F·g-1；经1500次充放电测试后，比电容保持率高达94.1%，循环性能良好。

Abstract

The porous carbon materials were synthesized from the straw by hydrothermal method coupled with KOH activation

of which the structure and morphology were characterized. The electrochemical properties of the porous carbon materials were evaluated by the cyclic voltammetry

galvanostatic charge/discharge and AC impedance tests in Li2SO4 electrolyte with different concentrations using a three electrodes electrochemical system. The results showed that the porous carbon materials have the best electrochemical performances in 0.5 mol·L-1 Li2SO4 electrolyte. The specific capacitance of porous carbon materials can reach 224 F·g-1 at a current density of 0.5 A·g-1

with specific capacitance retention of over 94.1% after the 1500 charge/discharge cycles

which indicates a good cycle characteristics.

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Electrochemical properties of straw-based carbon materials in Li2SO4 electrolyte

DOI：10.11949/j.issn.0438-1157.20171622

摘要

Abstract

关键词

Keywords

references

Electrochemical properties of straw-based carbon materials in Li₂SO₄ electrolyte