Issue 70, 2018, Issue in Progress

A novel porous carbon material derived from the byproducts of bean curd stick manufacture for high-performance supercapacitor use

Abstract

The exploitation of efficient renewable energy resources and the promotion of added value of agricultural products are always hot topics. In this study, we present a novel porous carbon material for high performance supercapacitor applications made from the byproduct of bean curd stick manufacture. The as-prepared carbon material possesses a hollow interconnected structure with a large specific surface area (2609 m2 g−1), while containing 5.01% oxygen and 1.75% nitrogen heteroatoms. Therefore, besides electrical double-layer capacitance, it can also produce additional pseudocapacitance to enhance the overall capacitance. Benefiting from these advantages of structure and composition, the bean curd stick based porous carbon material demonstrates a high specific capacitance of 405 F g−1 at 0.5 A g−1. Moreover, the presented porous carbon material based symmetric supercapacitor also offers a high energy density (11.35 W h kg−1 at a power density of 125 W kg−1). All the above findings indicate that the byproduct of bean curd stick manufacture is an excellent optional material for preparing high-performance supercapacitor material. Simultaneously, this work also provides an effective strategy for adding value to agricultural products.

Graphical abstract: A novel porous carbon material derived from the byproducts of bean curd stick manufacture for high-performance supercapacitor use

Supplementary files

Article information

Article type
Paper
Submitted
19 Oct 2018
Accepted
15 Nov 2018
First published
29 Nov 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 39937-39947

A novel porous carbon material derived from the byproducts of bean curd stick manufacture for high-performance supercapacitor use

L. Shi, L. Jin, Z. Meng, Y. Sun, C. Li and Y. Shen, RSC Adv., 2018, 8, 39937 DOI: 10.1039/C8RA08664H

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