Home

Citation: LUO Jian-Min, LI Juan, ZHANG Xiao-Gang, GAO Bo. Preparation and Electrochemical Capacitance of α-MnO₂ Microspheres[J]. Chinese Journal of Applied Chemistry, ;2007, 24(8): 949-952. shu

Preparation and Electrochemical Capacitance of α-MnO₂ Microspheres

LUO Jian-Min ^a ,
LI Juan ^a ,
ZHANG Xiao-Gang ^a,b,, ,
GAO Bo ^a

1.
a Institute of Applied Chemistry, Xinjiang University, Urumqi 830046;
2.
b College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016

Corresponding author: ZHANG Xiao-Gang,
Received Date: 22 September 2006
Available Online: 30 December 2006
Fund Project: 国家自然科学基金资助项目(20403014) (20403014)

MnO₂ with a high surface area of 177 m²/g as electrode for electrochemical capacitor was prepared with Ag foil as the catalyst at room temperature.The results of XRD and SEM showed that the MnO₂ is α-MnO₂ microspheres with cactus-like morphology composed of nanofibres.AC impedances,cyclic voltammetry and constant current charge-discharge tests indicated that α-MnO₂ microspheres had an excellent electrochemical capacitance with the highest capacitance of 187.1 F/g and retained 90% of the initial capacity over 1 000 cycles within the potential range of 0~0.8 V versus SCE in 1 mol/L Na₂SO₄.
- manganese dioxide,
- microsphere,
- electrochemical capacitance
1. [1]
  Ao XIA , Botao YU , Jun CHEN , Guoqiang TAN . Preparation and electrochemical property of Ce-doped MnO₂. Chinese Journal of Inorganic Chemistry, 2025, 41(12): 2514-2526. doi: 10.11862/CJIC.20250163
2. [2]
  Qinjin DAI , Shan FAN , Pengyang FAN , Xiaoying ZHENG , Wei DONG , Mengxue WANG , Yong ZHANG . Performance of oxygen vacancy-rich V-doped MnO₂ for high-performance aqueous zinc ion battery. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 453-460. doi: 10.11862/CJIC.20240326
3. [3]
  Xiaojun Liu , Lang Qin , Yanlei Yu . Dynamic Manipulation of Photonic Bandgaps in Cholesteric Liquid Crystal Microdroplets for Applications. Acta Physico-Chimica Sinica, 2024, 40(5): 2305018-0. doi: 10.3866/PKU.WHXB202305018
4. [4]
  Shilong Li , Ming Zhao , Yefei Xu , Zhanyi Liu , Mian Li , Qing Huang , Xiang Wu . Performance optimization of aqueous Zn/MnO₂ batteries through the synergistic effect of PVP intercalation and GO coating. Chinese Chemical Letters, 2025, 36(3): 110701-. doi: 10.1016/j.cclet.2024.110701
5. [5]
  Haoting Wang , Mengfan Luo , Yuzhong Wang , Jialong Yin , Heng Zhang , Jia Zhao , Bo Lai . Mn(Ⅱ) enhanced permanganate oxidation of trace organic pollutants in water: Critical role of in situ formation of colloidal MnO₂. Chinese Chemical Letters, 2025, 36(6): 110348-. doi: 10.1016/j.cclet.2024.110348
6. [6]
  Zhen Li , Sujuan Zhang , Zhongliao Wang , Jinfeng Zhang , Gaoli Chen , Shifu Chen . Rational design of S-scheme CdS/MnO₂ heterojunctions for high-value photothermal synergistic catalytic oxidation of toluene. Acta Physico-Chimica Sinica, 2026, 42(4): 100179-0. doi: 10.1016/j.actphy.2025.100179
7. [7]
  Guangnan SHAN , Yuhui WANG , Yueru WU . Preparation and electrochemical performance of α-MnO₂ electrode material for aqueous zinc ion battery. Chinese Journal of Inorganic Chemistry, 2026, 42(3): 479-487. doi: 10.11862/CJIC.20250292
8. [8]
  Xudong Lv , Tao Shao , Junyan Liu , Meng Ye , Shengwei Liu . Paired Electrochemical CO₂ Reduction and HCHO Oxidation for the Cost-Effective Production of Value-Added Chemicals. Acta Physico-Chimica Sinica, 2024, 40(5): 2305028-0. doi: 10.3866/PKU.WHXB202305028
9. [9]
  Jiahong ZHENG , Jingyun YANG . Preparation and electrochemical properties of hollow dodecahedral CoNi₂S₄ supported by MnO₂ nanowires. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1881-1891. doi: 10.11862/CJIC.20240170
10. [10]
  Xiutao Xu , Chunfeng Shao , Jinfeng Zhang , Zhongliao Wang , Kai Dai . Rational Design of S-Scheme CeO₂/Bi₂MoO₆ Microsphere Heterojunction for Efficient Photocatalytic CO₂ Reduction. Acta Physico-Chimica Sinica, 2024, 40(10): 2309031-0. doi: 10.3866/PKU.WHXB202309031
11. [11]
  Chengyan Ge , Jiawei Hu , Xingyu Liu , Yuxi Song , Chao Liu , Zhigang Zou . Self-integrated black NiO clusters with ZnIn₂S₄ microspheres for photothermal-assisted hydrogen evolution by S-scheme electron transfer mechanism. Acta Physico-Chimica Sinica, 2026, 42(1): 100154-0. doi: 10.1016/j.actphy.2025.100154
12. [12]
  Lijun Yue , Siya Liu , Peng Liu . 不同晶相纳米MnO₂的制备及其对生物乙醇选择性氧化催化性能的测试——一个科研转化的综合化学实验. University Chemistry, 2025, 40(8): 225-232. doi: 10.12461/PKU.DXHX202410005
13. [13]
  Chunhui Gao , Lurong Li , Guanwei Peng , Jinni Shen , Wenxin Dai , Zizhong Zhang . Efficient photocatalytic NADH regeneration and enzymatic CO₂ reduction over[Cp^*Rh(bpy)H₂O]²⁺ self-assembled CdIn₂S₄ flower-like microspheres. Acta Physico-Chimica Sinica, 2026, 42(3): 100165-0. doi: 10.1016/j.actphy.2025.100165
14. [14]
  Xiaoning TANG , Shu XIA , Jie LEI , Xingfu YANG , Qiuyang LUO , Junnan LIU , An XUE . Fluorine-doped MnO₂ with oxygen vacancy for stabilizing Zn-ion batteries. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1671-1678. doi: 10.11862/CJIC.20240149
15. [15]
  Yiqian Jiang , Zihan Yang , Xiuru Bi , Nan Yao , Peiqing Zhao , Xu Meng . Mediated electron transfer process in α-MnO₂ catalyzed Fenton-like reaction for oxytetracycline degradation. Chinese Chemical Letters, 2024, 35(8): 109331-. doi: 10.1016/j.cclet.2023.109331
16. [16]
  Kun Chen , Huimin Lin , Xin Peng , Ziying Wu , Jingyue Dai , Yi Sun , Yaxuan Feng , Ziyi Huang , Zhiqiang Yu , Meng Yu , Guangyu Yao , Jigang Wang . In situ synthesis of MnO₂ micro/nano-adjuvants for enhanced immunotherapy of breast tumors. Chinese Chemical Letters, 2025, 36(5): 110045-. doi: 10.1016/j.cclet.2024.110045
17. [17]
  Mengdan Tian , Chuanzheng Zhu , Kun Luo . Hybrid organic-inorganic modification on tunnel-structured α-MnO₂ for high-performance aqueous zinc-ion battery. Chinese Chemical Letters, 2026, 37(3): 110702-. doi: 10.1016/j.cclet.2024.110702
18. [18]
  Jiaojiao Deng , Haocheng Li , Fei Zheng , Qingsong Weng , Yu Bai , Xiaoliang Yu , Qianlin Zhang , Qinghua Liang , Baohua Li . A “breathable” 3D lithium host with MnO₂ nanoflake array for long-lifespan anode-free lithium metal batteries. Chinese Chemical Letters, 2026, 37(3): 110681-. doi: 10.1016/j.cclet.2024.110681
19. [19]
  Jingwen Wang , Minghao Wu , Xing Zuo , Yaofeng Yuan , Yahao Wang , Xiaoshun Zhou , Jianfeng Yan . Advances in the Application of Electrochemical Regulation in Investigating the Electron Transport Properties of Single-Molecule Junctions. University Chemistry, 2025, 40(3): 291-301. doi: 10.12461/PKU.DXHX202406023
20. [20]
  Sumiya Akter Dristy , Md Ahasan Habib , Shusen Lin , Mehedi Hasan Joni , Rutuja Mandavkar , Young-Uk Chung , Md Najibullah , Jihoon Lee . Exploring Zn doped NiBP microspheres as efficient and stable electrocatalyst for industrial-scale water splitting. Acta Physico-Chimica Sinica, 2025, 41(7): 100079-0. doi: 10.1016/j.actphy.2025.100079

Get Citation

PDF

XML

Metrics

PDF Downloads(1)
Abstract views(680)
HTML views(65)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return

Preparation and Electrochemical Capacitance of α-MnO2 Microspheres

Metrics

通讯作者: 陈斌, bchen63@163.com

Preparation and Electrochemical Capacitance of α-MnO₂ Microspheres