From ZIF nanoparticles to hierarchically porous carbon: toward very high surface area and high-performance supercapacitor electrode materials

2019 ◽  
Vol 6 (1) ◽  
pp. 32-39 ◽  
Author(s):  
Fangfang Wang ◽  
Liangkui Zhu ◽  
Ying Pan ◽  
Zhan Li ◽  
Pingping Yang ◽  
...  

A high-performance capacitive energy storage material was derived from a new nanoscale ZIF precursor by using the activating reagent KOH, exhibiting a high surface area of 3253 m2 g−1 and an ultra-high specific capacitance.

2015 ◽  
Vol 3 (30) ◽  
pp. 15513-15522 ◽  
Author(s):  
Xia Liu ◽  
Aled Roberts ◽  
Adham Ahmed ◽  
Zhenxin Wang ◽  
Xu Li ◽  
...  

A water-based approach to fabricating CNFs from a perylene diimide derivative via gelation and carbonization is described. Pluronic F-127 as templates can be readily incorporated to form CNFs with high surface area, showing high performance as electrode materials for supercapacitors.


RSC Advances ◽  
2014 ◽  
Vol 4 (94) ◽  
pp. 52555-52561 ◽  
Author(s):  
Seyyed Ebrahim Moosavifard ◽  
Javad Shamsi ◽  
Saeed Fani ◽  
Saeid Kadkhodazade

3D ordered nanocrystalline nanoporous NiMoO4 with high surface area and bimodal pore size distribution has been synthesized by nanocasting from mesoporous silica KIT-6, and applied as high-performance supercapacitor electrode material.


Author(s):  
Matheus Ireno da Silva ◽  
Ítalo R. Machadoa ◽  
Henrique E. Toma ◽  
Koiti Araki ◽  
Lúcio Angnes ◽  
...  

Metal–organic frameworks (MOFs) are being extensively reported as ideal templates or precursors for energy storage and conversion materials thanks to their unique architectures with high surface area, high ordered porosity,...


Author(s):  
Wenbo Geng ◽  
Qing Wang ◽  
Jianfeng Dai ◽  
Haoran Gao

The performance of supercapacitor electrode materials was greatly affected by the specific surface area. The urchin-like NiCo2O4 was transformed into porous NiCo2O4 (AA-NiCo2O[Formula: see text] using the acid–alkali treatment method. The specific surface area of AA-NiCo2O4 was 165.0660 m2/g, which was about three times larger than that of NiCo2O4. The specific capacitance of the AA-NiCo2O4 was enhanced significantly (1700 F/g at 1 A/g), and AA-NiCo2O4 possesses good rate capacitance (1277 F/g at 10 A/g). This is mainly attributed to the larger specific surface area, fast and convenient electron–ion transport and redox reaction. Therefore, AA-NiCo2O4 is a promising high-performance supercapacitor electrode material.


2018 ◽  
Vol 2 (4) ◽  
pp. 811-819 ◽  
Author(s):  
E. Elanthamilan ◽  
A. Sathiyan ◽  
S. Rajkumar ◽  
E. Joan Sheryl ◽  
J. Princy Merlin

Among the synthesized PANI, PANI/AC, and PANI/AC/Ni nanomaterials, PANI/AC/Ni exhibits high specific capacitance (Cs) due to its high surface area.


RSC Advances ◽  
2017 ◽  
Vol 7 (34) ◽  
pp. 20947-20959 ◽  
Author(s):  
Nimali C. Abeykoon ◽  
Velia Garcia ◽  
Rangana A. Jayawickramage ◽  
Wijayantha Perera ◽  
Jeremy Cure ◽  
...  

High performing supercapacitor electrode materials were obtained by controlling the nanostructure of electrospun fibers derived from PBI/6FDD immiscible blends.


2021 ◽  
Vol 5 (20) ◽  
pp. 5236-5246
Author(s):  
Xuerui Yi ◽  
Huapeng Sun ◽  
Neil Robertson ◽  
Caroline Kirk

Nanoflower Ni(OH)2 shows exceptionally high specific capacitance.


2016 ◽  
Vol 192 ◽  
pp. 110-119 ◽  
Author(s):  
Ellie Yi Lih Teo ◽  
Lingeswarran Muniandy ◽  
Eng-Poh Ng ◽  
Farook Adam ◽  
Abdul Rahman Mohamed ◽  
...  

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3249
Author(s):  
Luting Zhu ◽  
Kojiro Uetani ◽  
Masaya Nogi ◽  
Hirotaka Koga

Biomass-derived three-dimensional (3D) porous nanocarbons have attracted much attention due to their high surface area, permeability, electrical conductivity, and renewability, which are beneficial for various electronic applications, including energy storage. Cellulose, the most abundant and renewable carbohydrate polymer on earth, is a promising precursor to fabricate 3D porous nanocarbons by pyrolysis. However, the pyrolysis of cellulosic materials inevitably causes drastic carbon loss and volume shrinkage. Thus, polydopamine doping prior to the pyrolysis of cellulose nanofiber paper is proposed to fabricate the 3D porous nanocarbons with improved yield and volume retention. Our results show that a small amount of polydopamine (4.3 wt%) improves carbon yield and volume retention after pyrolysis at 700 °C from 16.8 to 26.4% and 15.0 to 19.6%, respectively. The pyrolyzed polydopamine-doped cellulose nanofiber paper has a larger specific surface area and electrical conductivity than cellulose nanofiber paper that without polydopamine. Owing to these features, it also affords a good specific capacitance up to 200 F g−1 as a supercapacitor electrode, which is higher than the recently reported cellulose-derived nanocarbons. This method provides a pathway for the effective fabrication of high-performance cellulose-derived 3D porous nanocarbons.


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