Crumpled Nitrogen‐Doped Graphene Nanosheets with Ultrahigh Pore Volume for High‐Performance Supercapacitor

Wen, Zhenhai; Wang, Xinchen; Mao, Shun; Bo, Zheng; Kim, Haejune; Cui, Shumao; Lu, Ganhua; Feng, Xinliang; Chen, Junhong

doi:10.1002/adma.201201920

Cited by 908 publications

(558 citation statements)

References 44 publications

Supporting

Mentioning

531

Contrasting

Unclassified

Order By: Relevance

“…Probably more defect sites were created by P-doping on graphene material. These results revealed that the reduced graphene has been functionalized with phosphorous and formed P-doped multi-layered graphene sheets [68] [69].…”

Section: Resultsmentioning

confidence: 86%

Heteroatom Doped Multi-Layered Graphene Material for Hydrogen Storage Application

Ariharan¹,

Viswanathan²,

Nandhakumar³

2016

Graphene

View full text Add to dashboard Cite

A variety of distinctive techniques have been developed to produce graphene sheets and their functionalized subsidiaries or composites. The production of graphene sheets by oxidative exfoliation of graphite can be a suitable route for the preparation of high volumes of graphene derivatives. P-substituted graphene material is developed for its application in hydrogen sorption in room temperature. Phosphorous doped graphene material with multi-layers of graphene shows a nearly ~2.2 wt% hydrogen sorption capacity at 298 K and 100 bar. This value is higher than that for reduced graphene oxide (RGO without phosphorous).

show abstract

Section: Resultsmentioning

confidence: 86%

Heteroatom Doped Multi-Layered Graphene Material for Hydrogen Storage Application

Ariharan¹,

Viswanathan²,

Nandhakumar³

2016

Graphene

View full text Add to dashboard Cite

show abstract

“…N‐doped carbon could be produced by many process with various nitrogen sources, such as ammonia,227 hydrazine,228 organic amine,229 and C 3 N 4 230. Significantly improved specific capacitances and rate capabilities have been demonstrated due to their enhanced electrical conductivity.…”

Section: Electrode Materialsmentioning

confidence: 99%

Materials Design and System Construction for Conventional and New‐Concept Supercapacitors

et al. 2017

View full text Add to dashboard Cite

With the development of renewable energy and electrified transportation, electrochemical energy storage will be more urgent in the future. Supercapacitors have received extensive attention due to their high power density, fast charge and discharge rates, and long‐term cycling stability. During past five years, supercapacitors have been boomed benefited from the development of nanostructured materials synthesis and the promoted innovation of devices construction. In this review, we have summarized the current state‐of‐the‐art development on the fabrication of high‐performance supercapacitors. From the electrode material perspective, a variety of materials have been explored for advanced electrode materials with smart material‐design strategies such as carbonaceous materials, metal compounds and conducting polymers. Proper nanostructures are engineered to provide sufficient electroactive sites and enhance the kinetics of ion and electron transport. Besides, new‐concept supercapacitors have been developed for practical application. Microsupercapacitors and fiber supercapacitors have been explored for portable and compact electronic devices. Subsequently, we have introduced Li‐/Na‐ion supercapacitors composed of battery‐type electrodes and capacitor‐type electrode. Integrated energy devices are also explored by incorporating supercapacitors with energy conversion systems for sustainable energy storage. In brief, this review provides a comprehensive summary of recent progress on electrode materials design and burgeoning devices constructions for high‐performance supercapacitors.

show abstract

“…Thus the devices made by CrG are significantly less dependent on the electrode mass loading, showing high potential of crumpled form in preventing graphene restacking and maintaining high accessible surface area, which is especially appealing for real applications of energy conversion and storage [18][19][20][21][22][23][24][25][26][27][28][29][30][31]. For instance, CrG induced by metal oxide template barely changed its capacitance as current density increasing from 0.5 to 100 A g −1 , because the crumpled form can efficiently provide plentiful, stable interfacial contacts and low-electrical-resistance pathways even under extremely high compressive strength [9,15,32,33].…”

Section: Introductionmentioning

confidence: 99%

“…CrG fabrication which is top-down from the structuring of GO [20,43], bottom-up strategy was applied to fabricate CrG via localized defluorination of polyvinylidenefluoride (PVDF) at the interfaces with particular CaC 2 , as shown in Scheme 1. PVDF was used as the carbon source to wrap CaC 2 particles.…”

Section: Introductionmentioning

confidence: 99%

N-doped crumpled graphene: bottom-up synthesis and its superior oxygen reduction performance

Zhang

Jin

et al. 2016

Sci. China Mater.

View full text Add to dashboard Cite

The crumpled graphene (CrG) was fabricated by applying defluorination of polyvinylidenefluoride (PVDF) on highly curved surface of CaC2 particle through bottom-up synthetic strategy. The limited reaction depth between PVDF and CaC2 leads to the formation of CrG with thin layer (3−6 layer graphene) and reasonable high specific surface area (~324.8 m 2 g −1 ). CrG with N incorporation (N-CrG) was applied as electrode material for reducing oxygen (i.e., oxygen reduction reaction, ORR) in alkaline, showing close onset potential to that of Pt/C and better mass-diffusion behavior. Surprisingly, with increased mass loading of catalysts, N-CrG exhibits steady current increase while Pt/C shows clear current plateau. Meanwhile, the N-CrG sample reveals high cycling stability and tolerance to contaminant, demonstrating its high potential for practical applications. Additionally, the bottom-up synthetic pathway to CrG via polymer dehalogenation on solid alkaline may find more applications which require controlled morphology and thickness of deposited thin graphitic carbon layers.

show abstract

Crumpled Nitrogen‐Doped Graphene Nanosheets with Ultrahigh Pore Volume for High‐Performance Supercapacitor

Cited by 908 publications

References 44 publications

Heteroatom Doped Multi-Layered Graphene Material for Hydrogen Storage Application

Heteroatom Doped Multi-Layered Graphene Material for Hydrogen Storage Application

Materials Design and System Construction for Conventional and New‐Concept Supercapacitors

N-doped crumpled graphene: bottom-up synthesis and its superior oxygen reduction performance

Contact Info

Product

Resources

About