PL411401A1 - Method for obtaining modified graphene flakes and the surface-modified graphene flakes - Google Patents

Method for obtaining modified graphene flakes and the surface-modified graphene flakes

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Publication number
PL411401A1
PL411401A1 PL411401A PL41140115A PL411401A1 PL 411401 A1 PL411401 A1 PL 411401A1 PL 411401 A PL411401 A PL 411401A PL 41140115 A PL41140115 A PL 41140115A PL 411401 A1 PL411401 A1 PL 411401A1
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PL
Poland
Prior art keywords
graphene flakes
carbon atoms
organic solvent
modified graphene
mol
Prior art date
Application number
PL411401A
Other languages
Polish (pl)
Other versions
PL227753B1 (en
Inventor
Joanna Jureczko
Antoni Kunicki
Agnieszka Jastrzębska
Andrzej Olszyna
Original Assignee
Politechnika Warszawska
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Politechnika Warszawska filed Critical Politechnika Warszawska
Priority to PL411401A priority Critical patent/PL227753B1/en
Publication of PL411401A1 publication Critical patent/PL411401A1/en
Publication of PL227753B1 publication Critical patent/PL227753B1/en

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  • Inorganic Compounds Of Heavy Metals (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

Ujawniono płatki grafenu modyfikowane powierzchniowo nanocząstkami kompozytowymi dwutlenek tlenek tytanu-metal szlachetny, a także sposób otrzymywania modyfikowanych płatków grafenu, który polega na tym, że do płatków grafenu lub tlenku grafenu zdyspergowanych w rozpuszczalniku organicznym wybranym z grupy węglowodory alifatyczne zawierające od 3 do 9 atomów węgla wprowadza się związek tytanu o wzorze ogólnym Ti(OR)n, gdzie n=3-4, oraz i/lub (R-O)n-Ti-(O-R')m, gdzie n,m=2, oraz i/lub (R-O-O-R)n-Ti-(O-R')m, gdzie n,m=2, oraz i/lub (TiO)(R-O-R)n, gdzie n=2, oraz i/lub (R-O-R'-NH2)n-Ti-(OH)m, gdzie n,m=2, w którym R, R' oznacza podstawnik alkilowy zawierający od 1 do 9 atomów węgla oraz związek metalu szlachetnego o wzorze ogólnym: MeRx, w którym R oznacza podstawnik alkilowy zawierający od 1 do 9 atomów węgla lub podstawnik nieorganiczny grupy V, VI, VII (węglany, wodorotlenki, chlorki, siarczki, fluorki, jodki, azotany, tiocyjaniany) lub mieszaninę tych związków. Następnie miesza się dalej w obecności suchego lub wilgotnego powietrza, usuwa rozpuszczalnik, a pozostałość po wysuszeniu poddaje się rozkładowi termicznemu w obecności powietrza, w temperaturze od 200 do 700°C. Stężenie związku tytanu w rozpuszczalniku organicznym zawiera się w przedziale od 0,001 do 10 mol/l a stężenie związku metalu szlachetnego w rozpuszczalniku organicznym zawiera się w przedziale od 0,001 do 10 mol/l.Graphene flakes modified with nanoparticles composite titanium dioxide-noble metal are disclosed, as well as the method of obtaining modified graphene flakes, which consists in the fact that graphene flakes or graphene oxide dispersed in an organic solvent selected from the group of aliphatic hydrocarbons containing from 3 to 9 carbon atoms a titanium compound with the general formula Ti (OR) n, where n = 3-4, and and / or (RO) n-Ti- (O-R ') m, where n, m = 2, and and / or (ROOR) n-Ti- (O-R ') m, where n, m = 2, and and / or (TiO) (ROR) n, where n = 2, and and / or (RO-R'-NH2 ) n-Ti- (OH) m, where n, m = 2, wherein R, R 'is an alkyl substituent containing from 1 to 9 carbon atoms and a noble metal compound having the general formula: MeRx, in which R is an alkyl substituent from 1 to 9 carbon atoms or inorganic substituent groups V, VI, VII (carbonates, hydroxides, chlorides, sulfides, fluorides, iodides, nitrates, thiocyanates) or a mixture of these compounds optional. It is then stirred further in the presence of dry or moist air, the solvent is removed, and the residue after drying is subjected to thermal decomposition in the presence of air at a temperature of 200 to 700 ° C. The concentration of titanium compound in the organic solvent is in the range of 0.001 to 10 mol / l and the concentration of the precious metal compound in the organic solvent is in the range of 0.001 to 10 mol / l.

PL411401A 2015-02-26 2015-02-26 The method of obtaining modified graphene flakes and surface-modified graphene flakes PL227753B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL411401A PL227753B1 (en) 2015-02-26 2015-02-26 The method of obtaining modified graphene flakes and surface-modified graphene flakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL411401A PL227753B1 (en) 2015-02-26 2015-02-26 The method of obtaining modified graphene flakes and surface-modified graphene flakes

Publications (2)

Publication Number Publication Date
PL411401A1 true PL411401A1 (en) 2016-08-29
PL227753B1 PL227753B1 (en) 2018-01-31

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ID=56760183

Family Applications (1)

Application Number Title Priority Date Filing Date
PL411401A PL227753B1 (en) 2015-02-26 2015-02-26 The method of obtaining modified graphene flakes and surface-modified graphene flakes

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PL (1) PL227753B1 (en)

Also Published As

Publication number Publication date
PL227753B1 (en) 2018-01-31

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