Morphology-controlled syntheses of α-MnO2 for electrochemical energy storage
作者： Weidong He , Wenjin Yang , Chenggang Wang , Xiaolong Deng , Baodan Liu
DOI: 10.1039/C6CP02548J
关键词:
摘要: Manganese dioxide (MnO2) nanoarchitectures including microspheres assembled by nanosheets and hollow urchins nanorods have been successfully synthesized using a facile efficient hydrothermal method at 150 °C. The effects of concentrations the reactants reaction time on structures morphologies MnO2 were systematically investigated. experimental results showed that transformed into nanosheet-assembled (10 min) from nanorod-assembled (5 tuning suitable time. experienced morphology transformation cycle urchin to disordered structure with extension Furthermore, different diameters lengths formed same (8 h). fabricated 0.59 g KMnO4 maximum specific capacitance (198 F g−1) good rate capability excellent cycling stability (maintained 94% after 2000 cycles). exhibited higher 131 g−1 1 A long-term for samples times. These indicated their promising applications as high-performance supercapacitor electrodes provided generic guideline in developing nanostructured electrode materials electrochemical energy storage.
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sci-hub.se 参考文章(56)
Huailong Li, Ying He, Vladimir Pavlinek, Qilin Cheng, Petr Saha, Chunzhong Li, MnO2 nanoflake/polyaniline nanorod hybrid nanostructures on graphene paper for high-performance flexible supercapacitor electrodes Journal of Materials Chemistry. ,vol. 3, pp. 17165- 17171 ,(2015) , 10.1039/C5TA04008F
E. Zhou, Chenggang Wang, Qinqin Zhao, Zhipeng Li, Minghui Shao, Xiaolong Deng, Xiaojing Liu, Xijin Xu, Facile synthesis of MoO2 nanoparticles as high performance supercapacitor electrodes and photocatalysts Ceramics International. ,vol. 42, pp. 2198- 2203 ,(2016) , 10.1016/J.CERAMINT.2015.10.008
Montree Sawangphruk, Pattarachai Srimuk, Poramane Chiochan, Atiweena Krittayavathananon, Santamon Luanwuthi, Jumras Limtrakul, High-performance supercapacitor of manganese oxide/reduced graphene oxide nanocomposite coated on flexible carbon fiber paper Carbon. ,vol. 60, pp. 109- 116 ,(2013) , 10.1016/J.CARBON.2013.03.062
Xiong Zhang, Xianzhong Sun, Haitao Zhang, Chen Li, Yanwei Ma, Comparative performance of birnessite-type MnO2 nanoplates and octahedral molecular sieve (OMS-5) nanobelts of manganese dioxide as electrode materials for supercapacitor application Electrochimica Acta. ,vol. 132, pp. 315- 322 ,(2014) , 10.1016/J.ELECTACTA.2014.03.176
Jian-Gan Wang, Ying Yang, Zheng-Hong Huang, Feiyu Kang, Interfacial synthesis of mesoporous MnO2/polyaniline hollow spheres and their application in electrochemical capacitors Journal of Power Sources. ,vol. 204, pp. 236- 243 ,(2012) , 10.1016/J.JPOWSOUR.2011.12.057
Guohong Qiu, Hui Huang, Saminda Dharmarathna, Evan Benbow, Lisa Stafford, Steven L. Suib, Hydrothermal Synthesis of Manganese Oxide Nanomaterials and Their Catalytic and Electrochemical Properties Chemistry of Materials. ,vol. 23, pp. 3892- 3901 ,(2011) , 10.1021/CM2011692
Hao Jiang, Ting Zhao, Jan Ma, Chaoyi Yan, Chunzhong Li, Ultrafine manganese dioxide nanowire network for high-performance supercapacitors Chemical Communications. ,vol. 47, pp. 1264- 1266 ,(2011) , 10.1039/C0CC04134C
Mao-Wen Xu, Wei Jia, Shu-Juan Bao, Zhi Su, Bin Dong, Novel mesoporous MnO2 for high-rate electrochemical capacitive energy storage Electrochimica Acta. ,vol. 55, pp. 5117- 5122 ,(2010) , 10.1016/J.ELECTACTA.2010.04.004
Peng Yu, Xiong Zhang, Dongliang Wang, Lei Wang, Yanwei Ma, Shape-Controlled Synthesis of 3D Hierarchical MnO2 Nanostructures for Electrochemical Supercapacitors Crystal Growth & Design. ,vol. 9, pp. 528- 533 ,(2009) , 10.1021/CG800834G
Wen Lei, Ping He, Yuhao Wang, Susu Zhang, Faqin Dong, Hongtao Liu, Soft template interfacial growth of novel ultralong polypyrrole nanowires for electrochemical energy storage Electrochimica Acta. ,vol. 132, pp. 112- 117 ,(2014) , 10.1016/J.ELECTACTA.2014.03.146