journal article·2018-10-31Open access

Paper-Derived Flexible 3D Interconnected Carbon Microfiber Networks with Controllable Pore Sizes for Supercapacitors

Pengcheng Dai, Yanming Xue, Shuo Zhang, Lei Cao, Daiming Tang, Xin Gu, Liangjun Li, Xuebin Wang, Xiangfen Jiang, Dandan Liu, Lingzhao Kong, Yoshio Bando, Dmitri Golberg, Xuebo Zhao

ACS Applied Materials & Interfaces· Volume 10· Issue 43

Abstract

Heteroatom-doped three-dimensional (3D) carbon fiber networks have attracted immense interest because of their extensive applications in energy-storage devices. However, their practical production and usage remain a great challenge because of the costly and complex synthetic procedures. In this work, flexible B, N, and O heteroatom-doped 3D interconnected carbon microfiber networks (BNOCs) with controllable pore sizes and elemental contents were successfully synthesized via a facile one-step “chemical vapor etching and doping” method using cellulose-made paper, the most abundant and cost-effective biomass, as an original network-frame precursor. Under a rational design, the BNOCs exhibited interconnected microfiber-network structure as expressways for electron transport, spacious accessible surface area for charge accumulation, abundant mesopores and macropores for rapid inner-pore ion diffusion, and lots of functional groups for additional pseudocapacitance. Being applied as binder-free electrodes for supercapacitors, BNOC-based supercapacitors not only revealed a high specific capacitance of 357 F g–1, a high capacitance retention of 150 F g–1 at 200 A g–1, a high energy density of 12.4 W h kg–1, and a maximum power density of 300.6 kW kg–1 with an aqueous electrolyte in two-electrode configuration but also exhibited a high specific capacitance of up to 242.4 F g–1 in an all-solid-state supercapacitor.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Supercapacitor Materials and Fabrication · Conducting polymers and applications · Advanced Sensor and Energy Harvesting Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Heavy Oil Processing, Institute of New Energy, China University of Petroleum (East China), Qingdao 266580, P. R. China

International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan

School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China

National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P. R. China

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, P. R. China

School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology (QUT), 2nd George Street, Brisbane QLD 4000, Australia

Funding

Ministry of Education of the People's Republic of China · Shandong Province · Australian Research Council · National Natural Science Foundation of China · World Premier International Center for Materials Nanoarchitectonics, National Institute for Materials Science

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