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Assembly of Modified Ferritin Proteins on Carbon Nanotubes and its Electrocatalytic Activity for Oxygen ReductionHighly effective dispersions of carbon nanotubes (CNTs) can be made using a commercially available buffer solution. Buffer solutions of 3-(N-morpholino)-propanesulfonic acid (MOPS), which consists of a cyclic ring with nitrogen and oxygen heteroatoms, a charged group, and an alkyl chain greatly enhance the dispersibility and stability of CNTs in aqueous solutions. Additionally, the ability of biomolecules, especially cationized Pt-cored ferritins, to adhere onto the well-dispersed CNTs in the aqueous buffer solution is also improved. This was accomplished without the use of surfactant molecules, which are detrimental to the electrical, mechanical, and other physical properties of the resulting products. The assembled Pt-cored ferritin proteins on the CNTs were used as an electrocatalyst for oxygen reduction
Document ID
20130014616
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Kim, Jae-Woo (National Inst. of Aerospace Hampton, VA, United States)
Lillehei, Peter T. (NASA Langley Research Center Hampton, VA, United States)
Park, Cheol (National Inst. of Aerospace Hampton, VA, United States)
Date Acquired
December 9, 2013
Publication Date
February 16, 2012
Publication Information
Publication: Journal of Materials Chemistry
Volume: 22
Issue: 1
Subject Category
Chemistry and Materials (General)
Report/Patent Number
NF1676L-13997
Funding Number(s)
WBS: WBS 432938.09.01.07.10
Distribution Limits
Public
Copyright
Other