EP 3038976 A4 20170419 - BULK PREPARATION OF HOLEY CARBON ALLOTROPES VIA CONTROLLED CATALYTIC OXIDATION
Title (en)
BULK PREPARATION OF HOLEY CARBON ALLOTROPES VIA CONTROLLED CATALYTIC OXIDATION
Title (de)
MASSENHERSTELLUNG LÖCHRIGER KOHLENSTOFFALLOTROPE DURCH GESTEUERTE KATALYTISCHE OXIDATION
Title (fr)
PRÉPARATION EN MASSE D'ALLOTROPES PERFORÉS DU CARBONE PAR OXYDATION CATALYTIQUE CONTRÔLÉE
Publication
Application
Priority
US 2013000198 W 20130828
Abstract (en)
[origin: WO2015030698A1] A scalable method allows preparation of bulk quantities of holey carbon allotropes with holes ranging from a few to over 100 nm in diameter. Carbon oxidation catalyst nanoparticles are first deposited onto a carbon allotrope surface in a facile, controllable, and solvent-free process. The catalyst-loaded carbons are then subjected to thermal treatment in air. The carbons in contact with the carbon oxidation catalyst nanoparticles are selectively oxidized into gaseous byproducts such as CO or C02, leaving the surface with holes. The catalyst is then removed via refluxing in diluted nitric acid to obtain the final holey carbon allotropes. The average size of the holes correlates strongly with the size of the catalyst nanoparticles and is controlled by adjusting the catalyst precursor concentration. The temperature and time of the air oxidation step, and the catalyst removal treatment conditions, strongly affect the morphology of the holes.
IPC 8 full level
C01B 32/05 (2017.01); C01B 32/168 (2017.01); C01B 32/194 (2017.01); C01B 32/20 (2017.01); H01M 4/02 (2006.01); H01M 4/13 (2010.01); H01M 4/583 (2010.01)
CPC (source: EP KR US)
C01B 32/05 (2017.08 - EP KR); C01B 32/152 (2017.08 - KR); C01B 32/159 (2017.08 - KR); C01B 32/16 (2017.08 - KR); C01B 32/168 (2017.08 - EP); C01B 32/184 (2017.08 - KR); C01B 32/194 (2017.08 - EP US); C01B 32/198 (2017.08 - KR); C01B 32/205 (2017.08 - KR); C09C 1/48 (2013.01 - KR); D01F 9/12 (2013.01 - KR); H01B 1/04 (2013.01 - KR)
Citation (search report)
- [X] US 2011206932 A1 20110825 - WAKI KEIKO [JP], et al
- [X] LIN YI: "Bulk preparation of holey graphene via controlled catalytic oxidation - Nanoscale (RSC Publishing) DOI:10.1039/C3NR02135A", 4 June 2013 (2013-06-04), XP055352933, Retrieved from the Internet <URL:http://pubs.rsc.org/en/content/articlehtml/2013/nr/c3nr02135a?page=search> [retrieved on 20170308]
- [A] XIN ZHAO ET AL: "Flexible Holey Graphene Paper Electrodes with Enhanced Rate Capability for Energy Storage Applications", ACS NANO, vol. 5, no. 11, 8 October 2011 (2011-10-08), US, pages 8739 - 8749, XP055352944, ISSN: 1936-0851, DOI: 10.1021/nn202710s
- [A] YI LIN ET AL: "Direct Mechanochemical Formation of Metal Nanoparticles on Carbon Nanotubes", JOURNAL OF PHYSICAL CHEMISTRY C, vol. 113, no. 33, 20 August 2009 (2009-08-20), US, pages 14858 - 14862, XP055352946, ISSN: 1932-7447, DOI: 10.1021/jp905076u
- [A] SEVERIN N ET AL: "Rapid trench channeling of graphenes with catalytic silver nanoparticles", NANO LETTERS, AMERICAN CHEMICAL SOCIETY, US, vol. 9, no. 1, 14 January 2009 (2009-01-14), pages 457 - 461, XP002574855, ISSN: 1530-6984, [retrieved on 20081208], DOI: 10.1021/NL8034509
- See also references of WO 2015030698A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2015030698 A1 20150305; CA 2932452 A1 20150305; EP 3038976 A1 20160706; EP 3038976 A4 20170419; JP 2016538228 A 20161208; KR 20160092987 A 20160805
DOCDB simple family (application)
US 2013000198 W 20130828; CA 2932452 A 20130828; EP 13892744 A 20130828; JP 2016538898 A 20130828; KR 20167008087 A 20130828