DES mediated synthesis of sewage sludge-derived B, N-doped carbons for electrochemical applications

被引：17

作者：

Xu, Zhi-Xiang ^{[1
]}

Ma, Xue-Qin ^{[1
]}

Shan, Ya-Qi ^{[2
]}

Li, Bin ^{[1
]}

Osman, Sameh M. ^{[3
]}

Duan, Pei-Gao ^{[2
]}

Luque, Rafael ^{[4
]}

机构：

[1] Jiangsu Univ, Sch Energy & Power Engn, Zhenjiang 212013, Peoples R China

[2] Xi An Jiao Tong Univ, Sch Chem Engn & Technol, Shaanxi Key Lab Energy Chem Proc Intensificat, 28, West Xianning Rd, Xian 710049, Shaanxi, Peoples R China

[3] King Saud Univ, Coll Sci, Chem Dept, POB 2455, Riyadh 11451, Saudi Arabia

[4] Campus Rabanales, Dept Quim Organ, Edificio Marie Curie C-3, Ctra Nnal IV-A, Km 396,, E-14014 Cordoba, Spain

来源：

CHEMOSPHERE | 2022年 / 308卷

关键词：

Sewage sludge; Supercapacitor; Deep eutectic solvents; B; N-carbon; DEEP EUTECTIC SOLVENTS; HIERARCHICAL POROUS CARBON; ONE-POT SYNTHESIS; HYDROTHERMAL CARBONIZATION; ELECTRODE MATERIALS; ASSISTED SYNTHESIS; MESOPOROUS CARBON; NITROGEN; BORON; PERFORMANCE;

D O I：

10.1016/j.chemosphere.2022.135840

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In order to effectively utilize organic matter in sewage sludge (SS), a new porous carbon material was suc-cessfully prepared from SS with deep eutectic solvents (DES) (boric acid and urea), in which DES was firstly used to solvent to separate organic matter, also playing the role as a B and N donor as well as acid activator to form porous B, N-carbons. As-synthesized B, N-carbon electrode materials possessed a high specific capacitance of 251.4 F/g at a current density of 1 A/g. It retained 84.28% of the capacitance at an ultrahigh current density of 5 A/g. The energy density was 9.502 Wh/Kg at a power density of 245.4 W/kg in 6 M KOH in symmetric supercapacitor.

引用

页数：10

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