Hierarchical porous Fe/N doped carbon nanofibers as host materials for high sulfur loading Li–S batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (32) ◽  
pp. 15156-15165 ◽  
Author(s):  
Mao Jiang ◽  
Ruxing Wang ◽  
Kangli Wang ◽  
Shu Gao ◽  
Jing Han ◽  
...  

Self-supporting carbon fibers with unique hierarchical porous structures and abundant Fe/N adsorption–nucleation centers enable the construction of high performance Li–S batteries.

2020 ◽  
Vol 8 (15) ◽  
pp. 7297-7308 ◽  
Author(s):  
Khang Ngoc Dinh ◽  
Zengxia Pei ◽  
Ziwen Yuan ◽  
Van Chinh Hoang ◽  
Li Wei ◽  
...  

A dual-functional metal template achieves on-demand control of metal–N–C sites, porous structures, and surface wettability in a carbon nanofiber catalyst, enabling flexible zinc–air batteries with outstanding performance under various mechanical deformations.


Small ◽  
2017 ◽  
Vol 13 (44) ◽  
pp. 1702474 ◽  
Author(s):  
Zhuangnan Li ◽  
Srinivas Gadipelli ◽  
Yuchen Yang ◽  
Zhengxiao Guo

2020 ◽  
Vol 44 (36) ◽  
pp. 15415-15425 ◽  
Author(s):  
Saisai Zuo ◽  
Jingping Gao ◽  
Fuming Wu ◽  
Bingye Yang ◽  
Yu Sun ◽  
...  

PCMS-T hierarchical porous structures were prepared from biomass dictyophora as electrodes for high-performance supercapacitors.


2017 ◽  
Vol 41 (13) ◽  
pp. 5291-5296 ◽  
Author(s):  
Xiao-Li Su ◽  
Ming-Yu Cheng ◽  
Lin Fu ◽  
Guang-Ping Zheng ◽  
Xiu-Cheng Zheng ◽  
...  

3D N-GANMs with hierarchical pores are firstly synthesized using iron nitrate as the etching agent, which display excellent supercapacitive performances.


RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34261-34270 ◽  
Author(s):  
Xing Tong ◽  
Hao Zhuo ◽  
Sha Wang ◽  
Linxin Zhong ◽  
Yijie Hu ◽  
...  

A new method was employed to obtain 3D hierarchical porous N-self-doped carbons with different porous structures from chitosan for high-performance supercapacitors and CO2 capture without using porogens, catalysts or activators.


2020 ◽  
Vol 3 (2) ◽  
pp. 1653-1664 ◽  
Author(s):  
Ming Chen ◽  
TrungHieu Le ◽  
Yuanxiang Zhou ◽  
Feiyu Kang ◽  
Ying Yang

Polymers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1150 ◽  
Author(s):  
Huichao Liu ◽  
Shuo Zhang ◽  
Jinglong Yang ◽  
Muwei Ji ◽  
Jiali Yu ◽  
...  

The quality of polyacrylonitrile (PAN) precursor has a great influence on the properties of the resultant carbon fibers. In this paper, a novel comonomer containing the sulfonic group, 2-acrtlamido-2-methylpropane acid (AMPS), was introduced to prepare P(AN-co-AMPS) copolymers using itaconic acid (IA) as the control. The nanofibers of PAN, P(AN-co-IA), and P(AN-co-AMPS) were prepared using the electrospinning method. The effect of AMPS comonomer on the carbon nanofibers was studied using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and Raman spectrum. The structural evolutions of PAN-based nanofibers were quantitatively tracked by FTIR and XRD during the thermal oxidative stabilization (TOS) process. The results suggested that P(AN-co-AMPS) nanofibers had the lower heat release rate (ΔH/ΔT = 26.9 J g−1 °C−1), the less activation energy of cyclization (Ea1 = 26.6 kcal/mol and Ea2 = 27.5 kcal/mol), and the higher extent of stabilization (Es and SI) during TOS process, which demonstrated that the AMPS comonomer improved the efficiency of the TOS process. The P(AN-co-AMPS) nanofibers had the better thermal stable structures. Moreover, the carbon nanofibers derived from P(AN-co-AMPS) precursor nanofibers had the better graphite-like structures (XG = 46.889). Therefore, the AMPS is a promising candidate comonomer to produce high performance carbon fibers.


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