Construction of 3D nanostructure hierarchical porous graphitic carbons by charge-induced self-assembly and nanocrystal-assisted catalytic graphitization for supercapacitors.
A smart and sustainable strategy based on charge-induced self-assembly and nanocrystal-assisted catalytic graphitization is explored for the efficient construction of 3D nanostructure hierarchical porous graphitic carbons from the pectin biopolymer. The electrostatic interaction between the negatively charged pectin chains and magnesium ions plays a crucial role in the formation of 3D architectures. The 3D HPGCs possess a three-dimensional carbon framework with a hierarchical porous structure, flake-like graphitic carbon walls and high surface area (1320 m(2) g(-1)). The 3D HPGCs show an outstanding specific capacitance of 274 F g(-1) and excellent rate capability with a high capacitance retention of 85% at a high current density of 50 A g(-1) for supercapacitor electrodes. This strategy provided a novel approach to effectively construct 3D porous carbon nanostructures from biopolymers.
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of China, Key Laboratory of Chemical Engineering Processes & Technology for High-efficiency Conversion (College of Heilongjiang Province), School of Chemistry and Material Science, Heilongjiang University, Harbin, 150080, China. Fangwei_ma@hotmail.com and Qitaihe Baotailong Coal Chemical Co., Ltd, Qitaihe, 154603, China and Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China.
Fangwei
F
Ma
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of China, Key Laboratory of Chemical Engineering Processes & Technology for High-efficiency Conversion (College of Heilongjiang Province), School of Chemistry and Material Science, Heilongjiang University, Harbin, 150080, China. Fangwei_ma@hotmail.com.
Di
D
Ma
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of China, Key Laboratory of Chemical Engineering Processes & Technology for High-efficiency Conversion (College of Heilongjiang Province), School of Chemistry and Material Science, Heilongjiang University, Harbin, 150080, China. Fangwei_ma@hotmail.com and Qitaihe Baotailong Coal Chemical Co., Ltd, Qitaihe, 154603, China and Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China.
Guang
G
Wu
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of China, Key Laboratory of Chemical Engineering Processes & Technology for High-efficiency Conversion (College of Heilongjiang Province), School of Chemistry and Material Science, Heilongjiang University, Harbin, 150080, China. Fangwei_ma@hotmail.com.
Weidan
W
Geng
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of China, Key Laboratory of Chemical Engineering Processes & Technology for High-efficiency Conversion (College of Heilongjiang Province), School of Chemistry and Material Science, Heilongjiang University, Harbin, 150080, China. Fangwei_ma@hotmail.com.
Jinqiu
J
Shao
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of China, Key Laboratory of Chemical Engineering Processes & Technology for High-efficiency Conversion (College of Heilongjiang Province), School of Chemistry and Material Science, Heilongjiang University, Harbin, 150080, China. Fangwei_ma@hotmail.com.
Shijiao
S
Song
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of China, Key Laboratory of Chemical Engineering Processes & Technology for High-efficiency Conversion (College of Heilongjiang Province), School of Chemistry and Material Science, Heilongjiang University, Harbin, 150080, China. Fangwei_ma@hotmail.com.
Jiafeng
J
Wan
Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China.
Jieshan
J
Qiu