Graphene quantum dots–three-dimensional graphene composites for high-performance supercapacitors

2014 ◽  
Vol 16 (36) ◽  
pp. 19307-19313 ◽  
Author(s):  
Qing Chen ◽  
Yue Hu ◽  
Chuangang Hu ◽  
Huhu Cheng ◽  
Zhipan Zhang ◽  
...  

Graphene quantum dots boost the capacitance of the graphene supercapacitor by more than 90% and with an excellent long-term stability.

Nanoscale ◽  
2017 ◽  
Vol 9 (45) ◽  
pp. 17710-17716 ◽  
Author(s):  
Zhaodongfang Gao ◽  
Junwei Yang ◽  
Jing Huang ◽  
Chuanxi Xiong ◽  
Quanling Yang

Conducting polymer based supercapacitors usually suffer from the difficulty of achieving high specific capacitance and good long-term stability simultaneously.


2019 ◽  
Vol 7 (23) ◽  
pp. 14079-14088 ◽  
Author(s):  
Kanghong Wang ◽  
Xin Tong ◽  
Yufeng Zhou ◽  
Hui Zhang ◽  
Fabiola Navarro-Pardo ◽  
...  

Here, we report a CdSe/CdSeS alloy/CdS core/shell/shell QD sensitized mesoporous TiO2 photoanode, which exhibits high performance and long-term stability for solar-driven hydrogen generation.


Nanoscale ◽  
2014 ◽  
Vol 6 (12) ◽  
pp. 6521-6525 ◽  
Author(s):  
Ming Zhuo ◽  
Yuejiao Chen ◽  
Tao Fu ◽  
Haonan Zhang ◽  
Zhi Xu ◽  
...  

Ni(SO4)0.3(OH)1.4 nanobelts are utilized in a humidity sensor by a facile method. The nanobelt based sensor shows a high sensitivity, fast response and long-term stability in the sensing process.


2020 ◽  
Author(s):  
Haozhen Dou ◽  
Mi Xu ◽  
Baoyu Wang ◽  
Zhen Zhang ◽  
Guobin Wen ◽  
...  

Abstract Cellular membranes provide ideal archetypes for molecule or ion separations with sub-angstrom scale precision, which are featured with both extremely high permeability and selectivity due to the well-defined membrane protein channels. However, the development of bioinspired membranes with artificial channels for sub-angstrom scale ethylene/ethane (0.416 nm / 0.443 nm) separation remains an uncharted territory and a significant challenge. Herein, a bioinspired nano-ordered liquid membrane is constructed by a facile ion/molecule self-assembly strategy for highly efficient ethylene/ethane separation, which mimics the structure of cellular membrane elegantly and possesses plenty of three-dimensional (3D) nanochannels. The elaborate regulation of non-covalent interactions by optimizing the ion/molecule compositions within membrane confers the nano-ordered liquid structure with interpenetrating and bi-continuous apolar domains and polar domains, which results in the formation of regular carrier wires and enormous 3D interconnected ethylene transport nanochannels. By virtue of these 3D nanochannels, the bioinspired nano-ordered liquid membrane manifests simultaneously super-high selectivity, excellent permeance and long-term stability, which exceeds previously reported ethylene/ethane separation membranes. This methodology in this work for construction of bioinspired membrane with tunable 3D nanochannels through ion/molecule self-assembly will enlighten the design and development of high-performance separation membranes for angstrom/sub-angstrom scale ion or molecule separations.


Author(s):  
Yansong Ge ◽  
Xinyu Xiao ◽  
Ge Yao ◽  
Shuaishuai Yuan ◽  
Lin Zhang ◽  
...  

2019 ◽  
Vol 12 (2) ◽  
pp. 675-683 ◽  
Author(s):  
Yue Wu ◽  
Hang Yang ◽  
Yan Zou ◽  
Yingying Dong ◽  
Jianyu Yuan ◽  
...  

A dialkylthio-substituted conjugated polymer is designed and synthesized as a donor material for high-performance polymer solar cells with long-term stability.


2020 ◽  
Vol 4 (1) ◽  
pp. 337-346 ◽  
Author(s):  
Hailiang Chu ◽  
Ying Zhu ◽  
Tingting Fang ◽  
Junqiang Hua ◽  
Shujun Qiu ◽  
...  

CoNi LDH-6 with a nano-petal structure was prepared, which exhibited excellent rate performance and long-term stability as a supercapacitor electrode.


2017 ◽  
Vol 5 (48) ◽  
pp. 12737-12743 ◽  
Author(s):  
Dong Hee Shin ◽  
Chan Wook Jang ◽  
Ju Hwan Kim ◽  
Jong Min Kim ◽  
Ha Seung Lee ◽  
...  

Bis(trifluoromethanesulfonyl)-amide (TFSA) is for the first time employed as a dopant for graphene for graphene/Si-quantum-dots-based photodetectors.


2013 ◽  
Vol 100 ◽  
pp. 35-43 ◽  
Author(s):  
Victoria González-Pedro ◽  
Qing Shen ◽  
Vasko Jovanovski ◽  
Sixto Giménez ◽  
Ramon Tena-Zaera ◽  
...  

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