Novel nitrogen doped graphene sponge with ultrahigh capacitive deionization performance

Citations Over TimeTop 1% of 2015 papers

Abstract

As water shortage has become a serious global problem, capacitive deionization (CDI) with high energy efficiency and low cost, is considered as a promising desalination technique to solve this problem. To date, CDI electrodes are mainly made up of porous carbon materials. However, the electrosorption performance obtained by now still cannot meet the demand of practical application. Therefore, a rationally designed structure of electrode materials has been an urgent need for CDI application. Here, a novel nitrogen-doped graphene sponge (NGS), with high specific surface area and rationally designed structure was fabricated, and used as CDI electrodes for the first time. The results show that NGS exhibits an ultrahigh electrosorption capacity of 21.0 mg g(-1) in ∼ 500 mg L(-1) NaCl solution, and to our knowledge, it is the highest value reported for carbon electrodes in similar experimental conditions by now. NGS in this work is expected to be a promising candidate as CDI electrode material.

Related Papers

• → Rocking-Chair Capacitive Deionization for Continuous Brackish Water Desalination(2018)97 cited
• → Desalination and disinfection of inland brackish ground water in a capacitive deionization cell using nanoporous activated carbon cloth electrodes(2015)106 cited
• → Parameter-based performance evaluation and optimization of a capacitive deionization desalination process(2018)42 cited
• → Response to comments on “comparison of energy consumption in desalination by capacitive deionization and reverse osmosis”(2019)25 cited
• → Activated Carbon Cloth for Desalination of Brackish Water Using Capacitive Deionization(2018)19 cited