Jump to main content
Jump to site search

Issue 26, 2017
Previous Article Next Article

Synthesis of nano-porous carbon and nitrogen doped carbon dots from an anionic MOF: a trace cobalt metal residue in carbon dots promotes electrocatalytic ORR activity

Author affiliations

Abstract

Metal–organic frameworks (MOFs) are effective self-sacrificial templates for the synthesis of carbon materials owing to their innate porosity, high carbon content and ease of heteroatom doping. A MgII based anionic MOF {[Mg3(ndc)2.5(HCO2)2(H2O)]·[NH2Me2]·2H2O·DMF} (1) has been carbonized as a sacrificial template for the synthesis of high surface area nanoporous carbon as well as nitrogen doped carbon dots, simply by adjusting the carbonization temperature. The nanoporous carbon synthesized from the MOF precursor exhibits an exceptionally high surface area and high CO2 uptake capacity. The anionic MOF contains dimethyl amine cations in its pores which, owing to their pre-bonded C–N moiety, act as a precursor for N-doping of the carbon dots. The N-doped carbon dots are held together by graphitic stacking and they show electrocatalytic activity as a metal-free catalyst for the oxygen reduction reaction (ORR). Trace amounts of metallic Co nanoparticles were post-synthetically incorporated into the N-doped carbon dots leading to enhanced electrocatalytic activity and stability for the ORR of the resulting material. The controlled design and synthetic strategy presented here offers a new platform for developing highly active and stable electrocatalysts.

Graphical abstract: Synthesis of nano-porous carbon and nitrogen doped carbon dots from an anionic MOF: a trace cobalt metal residue in carbon dots promotes electrocatalytic ORR activity

Back to tab navigation

Supplementary files

Article information


Submitted
09 Jan 2017
Accepted
31 May 2017
First published
31 May 2017

J. Mater. Chem. A, 2017,5, 13573-13580
Article type
Paper

Synthesis of nano-porous carbon and nitrogen doped carbon dots from an anionic MOF: a trace cobalt metal residue in carbon dots promotes electrocatalytic ORR activity

S. Bhattacharyya, B. Konkena, K. Jayaramulu, W. Schuhmann and T. K. Maji, J. Mater. Chem. A, 2017, 5, 13573 DOI: 10.1039/C7TA00281E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements