Nano-bismuth oxide doped MnO<sub>2</sub>/nano-actived carbon as composite electrode materials

LI Shengjuan; WANG Shulin; XU Bo; GAO Huifeng

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Nano-bismuth oxide doped MnO₂/nano-actived carbon as composite electrode materials

更新时间：2025-12-10

- Nano-bismuth oxide doped MnO₂/nano-actived carbon as composite electrode materials
- CIESC Journal Issue 2, Pages: 514-519(2008)
- 作者机构：
  
  上海理工大学动力工程学院
- 作者简介：
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- DOI：
  CLC：
- Online First：05 February 2008，
  
  Published：05 February 2008
- 稿件说明：
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LI Shengjuan, WANG Shulin, XU Bo, et al. Nano-bismuth oxide doped MnO₂/nano-actived carbon as composite electrode materials[J]. CIESC Journal, 2008, (2): 514-519.
DOI：

LI Shengjuan, WANG Shulin, XU Bo, et al. Nano-bismuth oxide doped MnO₂/nano-actived carbon as composite electrode materials[J]. CIESC Journal, 2008, (2): 514-519. DOI：

摘要

首次应用机械振动研磨法在室温条件制备纳米活性炭电极材料，经过30 min研磨后，得到了粒度分布在30～50 nm之间的纳米活性炭（nm-AC），研究表明，这种纳米活性炭的结晶性得到了明显增强和改善，且孔径分布更趋于合理。并用溶胶-凝胶方法合成了掺杂氧化铋的纳米二氧化锰（nm-Bi-MnO 2），将其与制备的纳米活性炭制成超级电容器所需的复合电极材料。与10%二氧化锰复合的纳米活性炭电极具有最佳的充放电性能，尤其是在掺杂氧化铋的情况下比电容能量达到308 F·g-1，且随着电流增大没有显著的衰减。与此同时，用机械振动研磨法将二氧化锰与活性炭的混合物进行研磨改性，电化学分析表明，经机械振动研磨改性的二氧化锰的比电容相对较大，具有进一步提高电极材料性能的潜力。

Abstract

Here we report the preparation of nano-actived carbon (nm-AC) electrode materials with different pore size distributions by roller vibration milling at room temperature. The mechanical vibration milling can obtain nm-AC of 30-50nm

and improve the crystalline of prepared nm-AC. Meanwhile we synthesized nano-bismuth oxide doped MnO2 by sol-gel methods. Based on a variety of measurements

such as XRD

TEM

AFM

BET

electro-chemical analysis

we experienced the microstructure and the electrochemical performance of the nano-composite electrode materials. Through analysis we found that mixing manganese dioxide materials with nm-AC in optimum weight ratio (10%) may increase the specific capacitance of nm-AC effectively. And the mixed MnO2 / active carbon raw material was modified by vibration milling. We used the composed nano-actived carbon/MnO2 electrode materials by vibration milling and sol-gel methods in super-capacitors.

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Related Author

XU Bo

WANG Shulin

LI Shengjuan

FAN Yiqun

XING Weihong

QI Hong

LI Yan

WEI Zuojun

Related Institution

上海理工大学材料学院

南京工业大学膜科学技术研究所，材料化学工程国家重点实验室

浙江大学化学工程与生物工程系

浙江工业大学药学院

武汉工程大学化工与制药学院

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Nano-bismuth oxide doped MnO2/nano-actived carbon as composite electrode materials

DOI：

摘要

Abstract

关键词

Keywords

references

Nano-bismuth oxide doped MnO₂/nano-actived carbon as composite electrode materials