Nitrogen and Sulfur Co-Doped Hollow Carbon Nanospheres Derived from Surface-Attached Polyelectrolyte Monolayers

2018 ◽  
Vol 3 (11) ◽  
pp. 3006-3013 ◽  
Author(s):  
Junbo Wang ◽  
Xiaofeng Li ◽  
Meiling Fan ◽  
Haining Zhang ◽  
Wenmao Tu
2021 ◽  
Vol 9 ◽  
Author(s):  
Mengdi Zhang ◽  
Xuan Zheng ◽  
Jiawei Mu ◽  
Pengfei Liu ◽  
Wenhan Yuan ◽  
...  

Lithium-ion capacitors (LICs) have been proposed as an emerging technological innovation that integrates the advantages of lithium-ion batteries and supercapacitors. However, the high-power output of LICs still suffers from intractable challenges due to the sluggish reaction kinetics of battery-type anodes. Herein, polypyrrole-coated nitrogen and phosphorus co-doped hollow carbon nanospheres (NPHCS@PPy) were synthesized by a facile method and employed as anode materials for LICs. The unique hybrid architecture composed of porous hollow carbon nanospheres and PPy coating layer can expedite the mass/charge transport and enhance the structural stability during repetitive lithiation/delithiation process. The N and P dual doping plays a significant role on expanding the carbon layer spacing, enhancing electrode wettability, and increasing active sites for pseudocapacitive reactions. Benefiting from these merits, the NPHCS@PPy composite exhibits excellent lithium-storage performances including high rate capability and good cycling stability. Furthermore, a novel LIC device based on the NPHCS@PPy anode and the nitrogen-doped porous carbon cathode delivers a high energy density of 149 Wh kg−1 and a high power density of 22,500 W kg−1 as well as decent cycling stability with a capacity retention rate of 92% after 7,500 cycles. This work offers an applicable and alternative way for the development of high-performance LICs.


Author(s):  
Zhimin He ◽  
Peng Wei ◽  
Ting Xu ◽  
Jiantao Han ◽  
Xuejiao Gao ◽  
...  

Fullerene-derived N,S-co-doped porous hollow carbon nanospheres with tailored N,S dopants and abundant defects serve as efficient electrocatalysts for the oxygen-reduction reaction and Zn–air batteries.


2018 ◽  
Vol 5 (6) ◽  
pp. 1307-1313 ◽  
Author(s):  
Yousong Liu ◽  
Bing Huang ◽  
Shengjie Peng ◽  
Tao Wang ◽  
Guangbin Ji ◽  
...  

NaN3/C5F5N deflagration is developed to synthesize hollow carbon nanospheres with high N/F doping level, graphitization degree and specific surface area in one step, which exhibit excellent ORR performance.


2017 ◽  
Vol 5 (36) ◽  
pp. 19343-19350 ◽  
Author(s):  
Lihua Zhou ◽  
Chunli Yang ◽  
Jing Wen ◽  
Peng Fu ◽  
Yaping Zhang ◽  
...  

Fe and N-co-doped hollow carbon nanospheres have been fabricated via a simple pyrolysis method using poly(aniline-co-pyrrole) copolymer hollow nanospheres as precursors. The resulting catalyst displayed potential application as a cathode in a MFC.


2017 ◽  
Vol 5 (4) ◽  
pp. 1742-1748 ◽  
Author(s):  
Chenghang You ◽  
Xiaowei Jiang ◽  
Leiyun Han ◽  
Xianghui Wang ◽  
Qiang Lin ◽  
...  

Nitrogen and sulphur co-doped, uniform hollow-structured carbon nanospheres as an efficient metal-free electrocatalyst for oxygen reduction.


Small ◽  
2020 ◽  
Vol 16 (19) ◽  
pp. 1907670 ◽  
Author(s):  
Zhonghui Sun ◽  
Xing‐Long Wu ◽  
Jianan Xu ◽  
Dongyang Qu ◽  
Bolin Zhao ◽  
...  

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