DataVXACS Applied Energy MaterialsPaper
journal article·2019-06-24

Large-Scale and Low-Cost Motivation of Nitrogen-Doped Commercial Activated Carbon for High-Energy-Density Supercapacitor

Shuai Zhang, Xiaoze Shi, Xuecheng Chen, Dengsong Zhang, Xianjie Liu, Zhibin Zhang, Paul K. Chu, Tao Tang, Ewa Mijowska

ACS Applied Energy Materials· Volume 2· Issue 6
Publisher page
Source abstract

Abstract

The growing requirement for high-performance energy-storage devices has spurred the development of supercapacitors, but the low energy density remains a technical hurdle. In this work, porous nitrogen-doped activated carbon (NAC) is prepared on a large scale from commercial activated carbon (AC) and inexpensive chemicals by a one-step method. The NAC material with 3.1 wt % nitrogen has a high specific surface area of 1186 m2 g–1 and shows a specific capacitance of 427 F g–1 in a symmetric cell with an aqueous electrolyte. 98.2% of the capacity is reserved after 20 000 cycles at 20 A g–1. The energy densities of the NAC are 17.2 and 87.8 Wh kg–1 in acidic and organic electrolytes, respectively. Moreover, this simple process is readily scalable to address commercial demand and can be extended to the motivation of a variety of carbon-based materials with poor capacitances.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Supercapacitor Materials and Fabrication · Advancements in Battery Materials · Advanced battery technologies research

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

Affiliations

Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland

State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Research Center of Nano Science and Technology, Shanghai University, No. 99 Shangda Road, Baoshan District, Shanghai 200444, China

Department of Physics, Chemistry and Biology, Linkoping University, SE-58183 Linkoping, Sweden

Division of Solid State Electronics, Department of Engineering Sciences, Uppsala University, Uppsala 75237, Sweden

Department of Physics and Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China

Funding

Narodowe Centrum Nauki · City University of Hong Kong

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