From Metal–Organic Framework to Nanoporous Carbon: Toward a Very High Surface Area and Hydrogen Uptake

Jiang, Hai‐Long; Liu, Bo; Lan, Ya‐Qian; Kuratani, Kentaro; Akita, Tomoki; Shioyama, Hiroshi; Feng-qi, Zong; Xu, Qiang

doi:10.1021/ja203184k

Cited by 1,115 publications

(632 citation statements)

References 65 publications

Supporting

Mentioning

610

Contrasting

Unclassified

Order By: Relevance

“…Ever since the pioneering work by Xu's group, 24 a renewed interest in porous carbons was triggered due to the large number of available MOFs with versatile pore structures. And the nanoporous carbons thus obtained showed attractive features, including ultra-high SSA and pore volumes, and exhibited a wide spectrum of energy-related applications in hydrogen storage, [25][26][27] carbon materials with uniformly distributed catalytic centers and high active site density. However, although the early attempts in using solely MOFs (such as MOF-5) as carbon precursors were successfully made, control over porous structures, particle morphologies and sizes as well as the heteroatom doping states were rarely presented.…”

Section: Introductionmentioning

confidence: 99%

Highly graphitized nitrogen-doped porous carbon nanopolyhedra derived from ZIF-8 nanocrystals as efficient electrocatalysts for oxygen reduction reactions

et al. 2014

View full text Add to dashboard Cite

Nitrogen-doped graphitic porous carbons (NGPCs) have been synthesized by using a zeolite-type nanoscale metal-organic framework (NMOF) as a self-sacrificing template, which simultaneously acts as both the carbon and nitrogen sources in a facile carbonization process. The NGPCs not only retain the nanopolyhedral morphology of the parent NMOF, but also possess rich nitrogen, high surface area and hierarchical porosity with well-conducting networks. The promising potential of NGPCs as metal-free electrocatalysts for oxygen reduction reactions (ORR) in fuel cells is demonstrated. Compared with commercial Pt/C, the optimized NGPC-1000-10 (carbonized at 1000 C for 10 h) catalyst exhibits comparable electrocatalytic activity via an efficient four-electron-dominant ORR process coupled with superior methanol tolerance as well as cycling stability in alkaline media. Furthermore, the controlled experiments reveal that the optimum activity of NGPC-1000-10 can be attributed to the synergetic contributions of the abundant active sites with high graphitic-N portion, high surface area and porosity, and the high degree of graphitization. Our findings suggest that solely MOF-derived heteroatom-doped carbon materials can be a promising alternative for Pt-based catalysts in fuel cells.

show abstract

Section: Introductionmentioning

confidence: 99%

Highly graphitized nitrogen-doped porous carbon nanopolyhedra derived from ZIF-8 nanocrystals as efficient electrocatalysts for oxygen reduction reactions

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The ZIF-8 framework consists of the Zn 2 þ transition metal ion and N-containing 2-methylimidazolate linkers (34 wt% N), which can form three-dimensional (3D) frameworks resembling zeolite topologies 36 . Here we design a facile strategy for fabricating high-level N-doped microporous carbon polyhedrons by the pyrolysis of ZIF-8 polyhedrons.…”

mentioning

confidence: 99%

High lithium anodic performance of highly nitrogen-doped porous carbon prepared from a metal-organic framework

2014

View full text Add to dashboard Cite

Theoretical and experimental results have revealed that the lithium-ion storage capacity for nitrogen-doped graphene largely depends on the nitrogen-doping level. However, most nitrogen-doped carbon materials used for lithium-ion batteries are reported to have a nitrogen content of approximately 10 wt% because a higher number of nitrogen atoms in the two-dimensional honeycomb lattice can result in structural instability. Here we report nitrogen-doped graphene particle analogues with a nitrogen content of up to 17.72 wt% that are prepared by the pyrolysis of a nitrogen-containing zeolitic imidazolate framework at 800°C under a nitrogen atmosphere. As an anode material for lithium-ion batteries, these particles retain a capacity of 2,132 mA h g À 1 after 50 cycles at a current density of 100 mA g À 1 , and 785 mAh g À 1 after 1,000 cycles at 5 A g À 1 . The remarkable performance results from the graphene analogous particles doped with nitrogen within the hexagonal lattice and edges.

show abstract

“…where Q is the charge integrated from the whole voltage range, DV is the whole voltage difference, and m is the mass of active material in a single electrode [30]. The specific capacitances at different scan rates are listed in Table 2.…”

mentioning

confidence: 99%

High rate performance activated carbons prepared from ginkgo shells for electrochemical supercapacitors

Jiang

Yan

Hao

et al. 2013

Carbon

204

View full text Add to dashboard Cite

From Metal–Organic Framework to Nanoporous Carbon: Toward a Very High Surface Area and Hydrogen Uptake

Cited by 1,115 publications

References 65 publications

Highly graphitized nitrogen-doped porous carbon nanopolyhedra derived from ZIF-8 nanocrystals as efficient electrocatalysts for oxygen reduction reactions

Highly graphitized nitrogen-doped porous carbon nanopolyhedra derived from ZIF-8 nanocrystals as efficient electrocatalysts for oxygen reduction reactions

High lithium anodic performance of highly nitrogen-doped porous carbon prepared from a metal-organic framework

High rate performance activated carbons prepared from ginkgo shells for electrochemical supercapacitors

Contact Info

Product

Resources

About