WO2012053990A3 - Method for the preparation of carrier colloidal powder with high specific surface area - Google Patents

Method for the preparation of carrier colloidal powder with high specific surface area Download PDF

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Publication number
WO2012053990A3
WO2012053990A3 PCT/SI2011/000059 SI2011000059W WO2012053990A3 WO 2012053990 A3 WO2012053990 A3 WO 2012053990A3 SI 2011000059 W SI2011000059 W SI 2011000059W WO 2012053990 A3 WO2012053990 A3 WO 2012053990A3
Authority
WO
WIPO (PCT)
Prior art keywords
surface area
specific surface
particles
carrier
high specific
Prior art date
Application number
PCT/SI2011/000059
Other languages
French (fr)
Other versions
WO2012053990A2 (en
Inventor
Aleš DAKSKOBLER
Andraž KOCJAN
Manca Logar
Original Assignee
Institut Jožef Stefan
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.)
Filing date
Publication date
Priority claimed from SI201000330A external-priority patent/SI23502A/en
Priority claimed from SI201000433A external-priority patent/SI23580A/en
Application filed by Institut Jožef Stefan filed Critical Institut Jožef Stefan
Publication of WO2012053990A2 publication Critical patent/WO2012053990A2/en
Publication of WO2012053990A3 publication Critical patent/WO2012053990A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/063—Titanium; Oxides or hydroxides thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
    • B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/39—Photocatalytic properties
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/30—Preparation of aluminium oxide or hydroxide by thermal decomposition or by hydrolysis or oxidation of aluminium compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
    • C01F7/441—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Colloid Chemistry (AREA)

Abstract

The subject of the invention is a method for the preparation of carrier colloidal powder with high specific surface area for application of a thin layer and/or nanoparticles. Due to a very large specific surface area and porosity of the carrier particles certain properties of nanoparticles that they exhibit due to their small size are preserved or even increased in comparison with the use of nanoparticles as such. Handling the so prepared composite colloidal particles with an increased specific surface area is very simple. The carrier powder is produced by exploiting hydrolysis of the AIN powder, wherein during a reaction between AIN and water the decomposed AIN particles are replaced by a number of agglomerates of porous particles from AIOOH with a high specific surface area that can be subsequently thermally treated in order to obtain the particles from one of the transitional forms of AI2O3, i. e. γ-, δ- or θ-ΑΙ2Ο3, without any significant change in the morphology of the particles.
PCT/SI2011/000059 2010-10-20 2011-10-19 Method for the preparation of carrier colloidal powder with high specific surface area WO2012053990A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SI201000330A SI23502A (en) 2010-10-20 2010-10-20 Method for the preparation of carrier colloidal powder with specific surface area
SI201000330 2010-10-20
SI201000433 2010-12-09
SI201000433A SI23580A (en) 2010-12-09 2010-12-09 Method for the preparation of carrier colloidal powder with high specific surface area

Publications (2)

Publication Number Publication Date
WO2012053990A2 WO2012053990A2 (en) 2012-04-26
WO2012053990A3 true WO2012053990A3 (en) 2012-06-21

Family

ID=45446162

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI2011/000059 WO2012053990A2 (en) 2010-10-20 2011-10-19 Method for the preparation of carrier colloidal powder with high specific surface area

Country Status (1)

Country Link
WO (1) WO2012053990A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016191958A1 (en) * 2015-05-29 2016-12-08 Kechuang Lin Photocatalyst apparatus and system
WO2019127436A1 (en) * 2017-12-29 2019-07-04 深圳前海小有技术有限公司 Flowing water sterilization device
CN110756214B (en) * 2019-11-07 2022-08-30 中国科学院上海高等研究院 Aluminum nitride-based catalyst with nano aluminum hydroxide as binder and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002322519A (en) * 2001-04-25 2002-11-08 Nagoya Industrial Science Research Inst Treatment method for aluminum nitride, treatment apparatus or the like for aluminum nitride
US20070281856A1 (en) * 2006-06-06 2007-12-06 Denso Corporation Method of producing catalyst support particles and a catalyzer using the catalyst support particles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002322519A (en) * 2001-04-25 2002-11-08 Nagoya Industrial Science Research Inst Treatment method for aluminum nitride, treatment apparatus or the like for aluminum nitride
US20070281856A1 (en) * 2006-06-06 2007-12-06 Denso Corporation Method of producing catalyst support particles and a catalyzer using the catalyst support particles

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BOWEN P ET AL: "DEGRADATION OF ALUMINIUM NITRIDE POWDER IN AN AQUEOUS ENVIRONMENT", JOURNAL OF THE AMERICAN CERAMIC SOCIETY, BLACKWELL PUBLISHING, MALDEN, MA, US, vol. 73, no. 3, 1 March 1990 (1990-03-01), pages 724 - 728, XP002554118, ISSN: 0002-7820, DOI: 10.1111/J.1151-2916.1990.TB06579.X *
KRISTOFFER KRNEL, ANDRAZ KOCJAN AND TOMAZ KOSMAC: "A Simple Method for the Preparation of Nanostructured Aluminate Coatings", J. AM. CERAM. SOC., vol. 92, no. 10, October 2009 (2009-10-01), pages 2451 - 2454, XP002674329 *
KRISTOFFER KRNEL, GORAN DRAZIC AND TOMAZ KOSMAC: "Degradation of AlN Powder in Aqueous Environments", J. MATER. RES., vol. 19, no. 4, 1 April 2004 (2004-04-01), pages 1157 - 1163, XP002674328 *
KUZJUKEVICS A; DEHLER M; ISHIZAKI K; GRABIS J; KRIEGESMANN J: "Transformation and sintering of y-AlOOH and TiN composites", MATERIALS AND MANUFACTURING PROCESSES, vol. 9, no. 1, 1994, pages 139 - 150, XP009158580 *

Also Published As

Publication number Publication date
WO2012053990A2 (en) 2012-04-26

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