Biosynthesis of amorphous mesoporous aluminophosphates using yeast cells as templates

Ángela B. Sifontes; Gema González; Leidy M. Tovar; Franklin J. Méndez; Maria E. Gomes; Edgar Cañizales; Gustavo Niño-Vega; Hector Villalobos; Joaquin L. Brito

doi:10.1016/j.materresbull.2012.11.016

Biosynthesis of amorphous mesoporous aluminophosphates using yeast cells as templates

Ángela B. Sifontes, Gema González, Leidy M. Tovar, Franklin J. Méndez, Maria E. Gomes, Edgar Cañizales, Gustavo Niño-Vega, Hector Villalobos, Joaquin L. Brito

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In this study aluminophosphates have been synthesized from aluminum isopropoxide and phosphoric acid solutions using yeast cells as template. The physicochemical characterization was carried out by thermogravimetric analysis; X-ray diffraction; Fourier transform infrared; N₂ adsorption-desorption isotherms; scanning electron microscopy; transmission electron microscopy and potentiometric titration with N-butylamine for determination of: thermal stability; crystalline structure; textural properties; morphology and surface acidity, respectively. The calcined powders consisted of an intimate mixture of amorphous and crystallized AlPO particles with sizes between 23 and 30 nm. The average pore size observed is 13-16 nm and the specific surface area after calcinations (at 650 °C) ranged between 176 and 214 m² g^-1.

Idioma original	Inglés
Páginas (desde-hasta)	730-738
Número de páginas	9
Publicación	Materials Research Bulletin
Volumen	48
N.º	2
DOI	https://doi.org/10.1016/j.materresbull.2012.11.016
Estado	Publicada - feb. 2013
Publicado de forma externa	Sí

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title = "Biosynthesis of amorphous mesoporous aluminophosphates using yeast cells as templates",

abstract = "In this study aluminophosphates have been synthesized from aluminum isopropoxide and phosphoric acid solutions using yeast cells as template. The physicochemical characterization was carried out by thermogravimetric analysis; X-ray diffraction; Fourier transform infrared; N2 adsorption-desorption isotherms; scanning electron microscopy; transmission electron microscopy and potentiometric titration with N-butylamine for determination of: thermal stability; crystalline structure; textural properties; morphology and surface acidity, respectively. The calcined powders consisted of an intimate mixture of amorphous and crystallized AlPO particles with sizes between 23 and 30 nm. The average pore size observed is 13-16 nm and the specific surface area after calcinations (at 650 °C) ranged between 176 and 214 m2 g-1.",

keywords = "A. Inorganic compounds, B. Chemical synthesis, C. Electron microscopy, D. Surface properties",

author = "Sifontes, {{\'A}ngela B.} and Gema Gonz{\'a}lez and Tovar, {Leidy M.} and M{\'e}ndez, {Franklin J.} and Gomes, {Maria E.} and Edgar Ca{\~n}izales and Gustavo Ni{\~n}o-Vega and Hector Villalobos and Brito, {Joaquin L.}",

year = "2013",

month = feb,

doi = "10.1016/j.materresbull.2012.11.016",

language = "Ingl{\'e}s",

volume = "48",

pages = "730--738",

journal = "Materials Research Bulletin",

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TY - JOUR

T1 - Biosynthesis of amorphous mesoporous aluminophosphates using yeast cells as templates

AU - Sifontes, Ángela B.

AU - González, Gema

AU - Tovar, Leidy M.

AU - Méndez, Franklin J.

AU - Gomes, Maria E.

AU - Cañizales, Edgar

AU - Niño-Vega, Gustavo

AU - Villalobos, Hector

AU - Brito, Joaquin L.

PY - 2013/2

Y1 - 2013/2

N2 - In this study aluminophosphates have been synthesized from aluminum isopropoxide and phosphoric acid solutions using yeast cells as template. The physicochemical characterization was carried out by thermogravimetric analysis; X-ray diffraction; Fourier transform infrared; N2 adsorption-desorption isotherms; scanning electron microscopy; transmission electron microscopy and potentiometric titration with N-butylamine for determination of: thermal stability; crystalline structure; textural properties; morphology and surface acidity, respectively. The calcined powders consisted of an intimate mixture of amorphous and crystallized AlPO particles with sizes between 23 and 30 nm. The average pore size observed is 13-16 nm and the specific surface area after calcinations (at 650 °C) ranged between 176 and 214 m2 g-1.

AB - In this study aluminophosphates have been synthesized from aluminum isopropoxide and phosphoric acid solutions using yeast cells as template. The physicochemical characterization was carried out by thermogravimetric analysis; X-ray diffraction; Fourier transform infrared; N2 adsorption-desorption isotherms; scanning electron microscopy; transmission electron microscopy and potentiometric titration with N-butylamine for determination of: thermal stability; crystalline structure; textural properties; morphology and surface acidity, respectively. The calcined powders consisted of an intimate mixture of amorphous and crystallized AlPO particles with sizes between 23 and 30 nm. The average pore size observed is 13-16 nm and the specific surface area after calcinations (at 650 °C) ranged between 176 and 214 m2 g-1.

KW - A. Inorganic compounds

KW - B. Chemical synthesis

KW - C. Electron microscopy

KW - D. Surface properties

UR - http://www.scopus.com/inward/record.url?scp=84871717807&partnerID=8YFLogxK

U2 - 10.1016/j.materresbull.2012.11.016

DO - 10.1016/j.materresbull.2012.11.016

M3 - Artículo

AN - SCOPUS:84871717807

SN - 0025-5408

VL - 48

SP - 730

EP - 738

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 2

ER -

Biosynthesis of amorphous mesoporous aluminophosphates using yeast cells as templates

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