Preparation and electrochemical properties of heteroatom-doped graphene hydrogels

XU Hui; YANG Shu-hua; ZHU Yuan-qiang; FAN Xin; CHEN Min-zhang

Article Contents

Article Navigation > New Carbon Mater. > 2020 > 35(2): 140-147

XU Hui, YANG Shu-hua, ZHU Yuan-qiang, FAN Xin, CHEN Min-zhang. Preparation and electrochemical properties of heteroatom-doped graphene hydrogels. New Carbon Mater., 2020, 35(2): 140-147.

Citation:

XU Hui, YANG Shu-hua, ZHU Yuan-qiang, FAN Xin, CHEN Min-zhang. Preparation and electrochemical properties of heteroatom-doped graphene hydrogels. New Carbon Mater., 2020, 35(2): 140-147.

XU Hui, YANG Shu-hua, ZHU Yuan-qiang, FAN Xin, CHEN Min-zhang. Preparation and electrochemical properties of heteroatom-doped graphene hydrogels. New Carbon Mater., 2020, 35(2): 140-147.

Citation:

XU Hui, YANG Shu-hua, ZHU Yuan-qiang, FAN Xin, CHEN Min-zhang. Preparation and electrochemical properties of heteroatom-doped graphene hydrogels. New Carbon Mater., 2020, 35(2): 140-147.

PDF( 6438 KB)

Preparation and electrochemical properties of heteroatom-doped graphene hydrogels

Lanzhou University of Technology, School of Petrochemical Engineering, Lanzhou 730050, China

Funds: National Natural Science Foundation of China (51503092, 51763015); Foundation for Innovation Groups of Basic Research in Gansu Province (1606RJIA322); Lanzhou University of Technology Hongliu First-class Discipline Construction Program.

Received Date: 2020-01-28
Accepted Date: 2020-04-28
Rev Recd Date: 2020-04-06
Publish Date: 2020-04-28

Abstract

Abstract

Graphene hydrogel electrode materials doped with nitrogen, phosphorus and sulfur were prepared by a hydrothermal method. SEM, TEM, Raman spectroscopy, XRD and XPS were used to characterize their microstructures and electrochemical properties for use as supercapacitor electrodes. The results indicate that nitrogen, phosphorus and sulfur are doped in the graphene lattice and that they improve the electrochemical performance of graphene with phosphorus being the best of them. Because of their having the largest atomic radius, P atoms produce the largest graphene lattice distortion and significantly increase the specific surface area, which is favorable for fast ion transfer. The capacitance of the P-doped graphene is 388 F/g at a current density of 1 mA/cm² in a 1 mol/L H₂SO₄ electrolyte. A symmetrical cell using the P-doped graphene as the electrodes delivers an energy density of 25.2 Wh/kg at a current density of 1 A/g. The high capacitance of the doped graphene is mainly due to the Faraday pseudocapacitance provided by the heteroatoms.
- Graphene hydrogel,
- Hetero atom doping,
- Specific capacitance

FullText(HTML)

References(16)

References

Guo S, Dong S. Graphene nanosheet:Synthesis, molecular engineering, thin film, hybrids, and energy and analytical applications[J]. Chemical Society Reviews, 2011, 40(5):2644-2672.

张丽芳, 魏伟, 吕伟. 石墨烯基宏观体:制备、性质及潜在应用[J]. 新型炭材料, 2013, 28(3):161-171. (ZHANG Li-fang, WEI Wei, LU Wei, et al. Graphene-based macroform:preparation, properties and applications[J]. New Carbon Materials, 2013, 28(3):161-171.)

LIU Xiaping, WANG Huicai, SUN Qiang, et al.Research progress of graphene and 3D graphene composites[J]. Chemical Industry And Engineering Progress, 2018, 37(1):168-174.

Min S L, Choi H J, Baek J B. Simple solution-based synthesis of pyridinic-rich nitrogen-doped graphene nanoplatelets for supercapacitors[J]. Applied Energy, 2016, 195:1071-1078.

Zuo Z, Jiang Z, Manthiram A. Porous B-doped graphene inspired by Fried-Ice for supercapacitors and metal-free catalysts[J]. Journal of Materials Chemistry A, 2013, 1(43):13476-13483.

Song M S, Lee K M, Yu R L, et al. Porously assembled 2D nanosheets of alkali metal manganese oxides with highly reversible pseudocapacitance behaviors[J]. J Phys Chem C, 2010, 114(50):22134-22140.

Xu H, Liu J, Chen Y, et al. Synthesis of three-dimensional nitrogen-doped graphene/polyaniline hydrogels for high performance supercapacitor applications[J]. Journal of Materials Science Materials in Electronics, 2017, 28(14):10674-10683.

Zhang S, Gao H, Huang M, et al. One-step hydrothermal synthesis of nitrogen doping graphene based cobalt oxide and its supercapacitive properties[J]. Journal of Alloys & Compounds, 2017, 705:801-805.

Zhang Y, Wen G, Gao P, et al. High-performance supercapacitor of macroscopic graphene hydrogels by partial reduction and nitrogen doping of graphene oxide[J]. Electrochimica Acta, 2016, 221:167-176.

Liu D, Fu C, Zhang N. Three-dimensional porous nitrogen doped graphene hydrogel for high energy density supercapacitors[J]. Electrochimica Acta, 2016, 213:291-297.

Yang Z, Yao Z, Li G, et al. Sulfur-doped graphene as an efficient metal-free cathode catalyst for oxygen reduction[J]. Acs Nano, 2012, 6(1):205-211.

Zhou Y, Ma R, Candelaria S L. Phosphorus/sulfur Co-doped porous carbon with enhanced specific capacitance for supercapacitor and improved catalytic activity for oxygen reduction reaction[J]. Journal of Power Sources, 2016, 314:39-48.

LI Ziqing, HE Wenxiu, ZHANG Yongqiang, et al. Preparation and electrochemical properties of sulfur-nitrogen co-doped graphene[J]. Chemical Industry And Engineering Progress, 2018, 37(07):2712-2719.

CHEN Zi-Ran,XU You-Hui,HE Zhan-Rong. The structure spectrum and electrical properties of phosphorus-doped graphene[J].Journal of Sichuan University(Natural Science Edition), 2016, 53(3):587-590.

Wang Z, Li P, Chen Y,et al. Phosphorus-doped reduced graphene oxide as an electrocatalyst counter electrode in dye-sensitized solar cells[J]. Journal of Power Sources, 2014, 263(5):246-251.

Sliwak A, Grzyb B, Díez N, et al. Nitrogen-doped reduced graphene oxide as electrode material for high rate supercapacitors[J]. Applied Surface Science, 2017, 399:265-271.

Relative Articles

Supplements(0)

Cited By

Proportional views