Polystyrene microsphere-template method for textural design of alumina – an effective catalyst support for macromolecule conversion

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Polystyrene microsphere-template method for textural design of alumina – an effective catalyst support for macromolecule conversion. / Parkhomchuk, E. V.; Fedotov, K. V.; Semeykina, V. S. et al.

In: Catalysis Today, Vol. 353, 15.08.2020, p. 180-186.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{4a3956a70d9e4613aab4bc389dc80ea1,

title = "Polystyrene microsphere-template method for textural design of alumina – an effective catalyst support for macromolecule conversion",

abstract = "Polystyrene microsphere-template method was used to prepare a range of hierarchically porous alumina samples. Different ways for creating hierarchical porosity were implemented, including mixing of alumina precursor with dry powder of PS microspheres and with PS water suspension, followed by extruding the resulting composite and its calcination. The samples were studied by BET technique, Hg porosimetry and scanning microscopy, mechanical strength of alumina pellets was also measured. In comparison with the “dry” method, the “wet” one gives pellets with a narrower distribution of macropores in size and the greater material mechanical strength. In whole the approach allows tuning textural parameters of hierarchically porous alumina samples in the following range: BET specific surface area 90–300 m2/g, mesopore volume 0.30–0.65 cm3/g, total pore volume 0.50–1.20 cm3/g, mechanical crushing strength of 10–35 MPa. Ordered macroporosity of alumina was obtained by the impregnation of dry PS colloidal crystal by ethanol-water solution of aluminum oxalate; this method can be used only to produce small quantities or films of the material.",

keywords = "Alumina, Hierarchical texture, Macropores, Polymeric microspheres, Template technique, PORE-SIZE, HEAVY, DEACTIVATION",

author = "Parkhomchuk, {E. V.} and Fedotov, {K. V.} and Semeykina, {V. S.} and Lysikov, {A. I.}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

month = aug,

day = "15",

doi = "10.1016/j.cattod.2019.07.027",

language = "English",

volume = "353",

pages = "180--186",

journal = "Catalysis Today",

issn = "0920-5861",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Polystyrene microsphere-template method for textural design of alumina – an effective catalyst support for macromolecule conversion

AU - Parkhomchuk, E. V.

AU - Fedotov, K. V.

AU - Semeykina, V. S.

AU - Lysikov, A. I.

PY - 2020/8/15

Y1 - 2020/8/15

N2 - Polystyrene microsphere-template method was used to prepare a range of hierarchically porous alumina samples. Different ways for creating hierarchical porosity were implemented, including mixing of alumina precursor with dry powder of PS microspheres and with PS water suspension, followed by extruding the resulting composite and its calcination. The samples were studied by BET technique, Hg porosimetry and scanning microscopy, mechanical strength of alumina pellets was also measured. In comparison with the “dry” method, the “wet” one gives pellets with a narrower distribution of macropores in size and the greater material mechanical strength. In whole the approach allows tuning textural parameters of hierarchically porous alumina samples in the following range: BET specific surface area 90–300 m2/g, mesopore volume 0.30–0.65 cm3/g, total pore volume 0.50–1.20 cm3/g, mechanical crushing strength of 10–35 MPa. Ordered macroporosity of alumina was obtained by the impregnation of dry PS colloidal crystal by ethanol-water solution of aluminum oxalate; this method can be used only to produce small quantities or films of the material.

AB - Polystyrene microsphere-template method was used to prepare a range of hierarchically porous alumina samples. Different ways for creating hierarchical porosity were implemented, including mixing of alumina precursor with dry powder of PS microspheres and with PS water suspension, followed by extruding the resulting composite and its calcination. The samples were studied by BET technique, Hg porosimetry and scanning microscopy, mechanical strength of alumina pellets was also measured. In comparison with the “dry” method, the “wet” one gives pellets with a narrower distribution of macropores in size and the greater material mechanical strength. In whole the approach allows tuning textural parameters of hierarchically porous alumina samples in the following range: BET specific surface area 90–300 m2/g, mesopore volume 0.30–0.65 cm3/g, total pore volume 0.50–1.20 cm3/g, mechanical crushing strength of 10–35 MPa. Ordered macroporosity of alumina was obtained by the impregnation of dry PS colloidal crystal by ethanol-water solution of aluminum oxalate; this method can be used only to produce small quantities or films of the material.

KW - Alumina

KW - Hierarchical texture

KW - Macropores

KW - Polymeric microspheres

KW - Template technique

KW - PORE-SIZE

KW - HEAVY

KW - DEACTIVATION

UR - http://www.scopus.com/inward/record.url?scp=85070192421&partnerID=8YFLogxK

U2 - 10.1016/j.cattod.2019.07.027

DO - 10.1016/j.cattod.2019.07.027

M3 - Article

AN - SCOPUS:85070192421

VL - 353

SP - 180

EP - 186

JO - Catalysis Today

JF - Catalysis Today

SN - 0920-5861

ER -

ID: 21157860