Optimizing Hybridization of 1T and 2H Phases in MoS2 Monolayers to Improve Capacitances of Supercapacitors

Lianfu Jiang; Shengli Zhang; Sergei A. Kulinich; Xiufeng Song; Junwu Zhu; Xin Wang; Haibo Zeng

doi:10.1080/21663831.2015.1057654

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Optimizing Hybridization of 1T and 2H Phases in MoS2 Monolayers to Improve Capacitances of Supercapacitors

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- Optimizing Hybridization of 1T and 2H Phases in MoS2 Monolayers to Improve Capacitances of Supercapacitors
- Optimizing Hybridization of 1T and 2H Phases in MoS2 Monolayers to Improve Capacitances of Supercapacitors
- 材料研究快报（英文） 2015年3卷第4期页码：177-183
- 作者机构：
  
  1. State Key Laboratory of Mechanics and Control of Mechanical Structures College of Materials Science and Technology Nanjing University of Aeronautics & Astronautics Nanjing People's Republic of China,210016
  2. Institute of Optoelectronics & Nanomaterials and Herbert Gleiter Institute of Nanoscience College of Materials Science and Engineering Nanjing University of Science and Technology
  3. Institute of Innovative Science and Technology Tokai University Hiratsuka
  4. Key Laboratory for Soft Chemistry and Functional Materials Nanjing University of Science and Technology Ministry of Education
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2015.1057654
  中图分类号：
- 网络首发：2015-06-17，
  
  纸质出版：2015
- 稿件说明：
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Lianfu Jiang, Shengli Zhang, Sergei A. Kulinich, 等. Optimizing Hybridization of 1T and 2H Phases in MoS2 Monolayers to Improve Capacitances of Supercapacitors[J]. 材料研究快报（英文）, 2015,3(4):177-183.

Lianfu Jiang, Shengli Zhang, Sergei A. Kulinich, et al. Optimizing Hybridization of 1T and 2H Phases in MoS2 Monolayers to Improve Capacitances of Supercapacitors[J]. Materials Research Letters, 2015, 3(4): 177-183.
Lianfu Jiang, Shengli Zhang, Sergei A. Kulinich, 等. Optimizing Hybridization of 1T and 2H Phases in MoS2 Monolayers to Improve Capacitances of Supercapacitors[J]. 材料研究快报（英文）, 2015,3(4):177-183. DOI： 10.1080/21663831.2015.1057654.

Lianfu Jiang, Shengli Zhang, Sergei A. Kulinich, et al. Optimizing Hybridization of 1T and 2H Phases in MoS2 Monolayers to Improve Capacitances of Supercapacitors[J]. Materials Research Letters, 2015, 3(4): 177-183. DOI： 10.1080/21663831.2015.1057654.

摘要

Abstract

We report on a 100-fold capacitance increase in MoS

-based supercapacitors achieved via optimizing the in-plane 1T-2H phase hybridization of the monolayers. Chemically exfoliated MoS

monolayers were annealed at low temperature to tune their 1T content from 2% to 60%. The obtained hybridization states were confirmed by X-ray photoelectron and Raman spectroscopies. After optimizing the hybridization degree

the electrode based on MoS

monolayers with 40% of the 1T phase exhibited outstanding performance with a resistance as low as 0.68 kΩ sq

−1

specific capacitance of 366.9 F g

−1

and retention ratio of 92.2% after 1000 cycles at current densities of 0.5 A g

−1

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