Search

Your search keyword '"Ping, Yunjie"' showing total 22 results
Start Over Author "Ping, Yunjie"
22 results on '"Ping, Yunjie"'

21. Research Progress in Preparation of Graphene from Electrochemical Exfoliation and Its Optoelectronic Characteristics

Author

潘春旭 Pan Chunxu, 平蕴杰 Ping Yunjie, and 龚佑宁 Gong Youning

Subjects
Materials science, Graphene, business.industry, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrochemistry, 01 natural sciences, Exfoliation joint, Atomic and Molecular Physics, and Optics, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, law.invention, law, Optoelectronics, Electrical and Electronic Engineering, 0210 nano-technology, business
Published
2017

22. A reclaimed piezoelectric catalyst of MoS 2 @TNr composites as high-performance anode materials for supercapacitors.

Author

Zhao X, Lei Y, Liu G, Qian L, Zhang X, Ping Y, Li H, Han Q, Fang P, and He C

Abstract

A piezoelectric catalyst of the MoS 2 @TNr composite (MoS 2 nanosheets composited with TiO 2 nanorods) was synthesized by a two-step hydrothermal method, and can be recycled and reused as an advanced anode material for supercapacitors. In the dark, the MoS 2 @TNr composite exhibited ultra-fast piezoelectric catalytic performance and good cycle stability on dye degradation; within 10 min, nearly all rhodamine B (50 mL, 20 ppm) was removed from the solution with the assistance of magnetic stirring. After the 5 cycle degradation reaction, the catalyst was reclaimed and applied to electrochemical testing, which showed better supercapacitor capacitance properties than the fresh catalyst due to the introduction of oxygen vacancies generated from the piezoelectric degradation process. The reclaimed catalyst demonstrated an excellent specific capacitance of 249 F g -1 at 1 A g -1 , and 92% capacitance retention after 10 000 cycles. Furthermore, as the current density increased to 30 A g -1 , the capacitance could maintain 58% of the initial value. Thus, it can be concluded that the abandoned catalysts may serve as a potential electrode material for energy storage; simultaneously, the reutilization could eliminate secondary pollution and decrease the energy consumption in efficiency., Competing Interests: There are no conflicts to declare., (This journal is © The Royal Society of Chemistry.)

Published
2020
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results