Characterization and catalytic performances of cations (M=Ce4+, La3+,
Co2+, Cu2+ or Na+) intercalated titanate nanotubes (MTNT) were performed
for alpha,beta unsaturated esters production. Structural properties of
the solids were evaluated by transmission electron microscopy (TEM)
analysis and X-ray diffraction (XRD), and Raman spectroscopy
measurements whereas textural properties were obtained through nitrogen
adsorption-desorption isotherms. The transition metals were intercalated
in titanate nanotubes by ionic exchange reaction where the Na+ cations
were substituted by Ce4+ La3+, Co2+ and Cu2+ ones. Also, the structural
characterizations revealed that the ion-exchange processes can favour
the formation of nanosized oxides on the TNT surfaces, in some cases.
Textural analysis showed high surface area, pore volume and diameters,
but a superior catalytic activity and recyclability was only observed
for CeTNT and LaTNT catalysts. The improved performance of CeTNT was
believed to be related to the presence of Ce4+ cations in the
interlamellar region and CeO2 nanosized particles on TNT surface as
well. (C) 2013 Elsevier B.V. All rights reserved.
%0 Journal Article
%1 WOS:000317870000011
%A dos Santos, Neilson M
%A Rocha, Jardel M
%A Matos, Jose M E
%A Ferreira, Odair P
%A Filho, Josue M
%A Viana, Bartolomeu C
%A Oliveira, Alcineia C
%C RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
%D 2013
%I ELSEVIER
%J APPLIED CATALYSIS A-GENERAL
%K Condensation Ion alpha, beta esters; exchange; nanotubes; reaction} unsaturated {Titanate
%P 74-80
%R 10.1016/j.apcata.2012.12.035
%T Metal cations intercalated titanate nanotubes as catalysts for
alpha,beta unsaturated esters production
%V 454
%X Characterization and catalytic performances of cations (M=Ce4+, La3+,
Co2+, Cu2+ or Na+) intercalated titanate nanotubes (MTNT) were performed
for alpha,beta unsaturated esters production. Structural properties of
the solids were evaluated by transmission electron microscopy (TEM)
analysis and X-ray diffraction (XRD), and Raman spectroscopy
measurements whereas textural properties were obtained through nitrogen
adsorption-desorption isotherms. The transition metals were intercalated
in titanate nanotubes by ionic exchange reaction where the Na+ cations
were substituted by Ce4+ La3+, Co2+ and Cu2+ ones. Also, the structural
characterizations revealed that the ion-exchange processes can favour
the formation of nanosized oxides on the TNT surfaces, in some cases.
Textural analysis showed high surface area, pore volume and diameters,
but a superior catalytic activity and recyclability was only observed
for CeTNT and LaTNT catalysts. The improved performance of CeTNT was
believed to be related to the presence of Ce4+ cations in the
interlamellar region and CeO2 nanosized particles on TNT surface as
well. (C) 2013 Elsevier B.V. All rights reserved.
@article{WOS:000317870000011,
abstract = {Characterization and catalytic performances of cations (M=Ce4+, La3+,
Co2+, Cu2+ or Na+) intercalated titanate nanotubes (MTNT) were performed
for alpha,beta unsaturated esters production. Structural properties of
the solids were evaluated by transmission electron microscopy (TEM)
analysis and X-ray diffraction (XRD), and Raman spectroscopy
measurements whereas textural properties were obtained through nitrogen
adsorption-desorption isotherms. The transition metals were intercalated
in titanate nanotubes by ionic exchange reaction where the Na+ cations
were substituted by Ce4+ La3+, Co2+ and Cu2+ ones. Also, the structural
characterizations revealed that the ion-exchange processes can favour
the formation of nanosized oxides on the TNT surfaces, in some cases.
Textural analysis showed high surface area, pore volume and diameters,
but a superior catalytic activity and recyclability was only observed
for CeTNT and LaTNT catalysts. The improved performance of CeTNT was
believed to be related to the presence of Ce4+ cations in the
interlamellar region and CeO2 nanosized particles on TNT surface as
well. (C) 2013 Elsevier B.V. All rights reserved.},
added-at = {2022-05-23T20:00:14.000+0200},
address = {RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS},
author = {dos Santos, Neilson M and Rocha, Jardel M and Matos, Jose M E and Ferreira, Odair P and Filho, Josue M and Viana, Bartolomeu C and Oliveira, Alcineia C},
biburl = {https://www.bibsonomy.org/bibtex/261235394a46a074fea671566d3a1fd66/ppgfis_ufc_br},
doi = {10.1016/j.apcata.2012.12.035},
interhash = {a011c8555b064994211a41f89a312bb9},
intrahash = {61235394a46a074fea671566d3a1fd66},
issn = {0926-860X},
journal = {APPLIED CATALYSIS A-GENERAL},
keywords = {Condensation Ion alpha, beta esters; exchange; nanotubes; reaction} unsaturated {Titanate},
pages = {74-80},
publisher = {ELSEVIER},
pubstate = {published},
timestamp = {2022-05-23T20:00:14.000+0200},
title = {Metal cations intercalated titanate nanotubes as catalysts for
alpha,beta unsaturated esters production},
tppubtype = {article},
volume = 454,
year = 2013
}