One-Pot Synthesis of Uniform Hollow Nanospheres of Ce–Zr–O Mixed Oxides by Spray Pyrolysis | Sciact - CRIS-system of Boreskov Institute of Catalysis

One-Pot Synthesis of Uniform Hollow Nanospheres of Ce–Zr–O Mixed Oxides by Spray Pyrolysis Full article

Journal

Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093

Output data

Year: 2020, Volume: 294, Article number : 109886, Pages count : 7 DOI: 10.1016/j.micromeso.2019.109886

Tags

Ceria; CeZrO mixed oxides; Hollow nanospheres of mixed oxides; One-pot synthesis; Spray pyrolysis; Zirconia

Authors

Aguirre Sandra B. ¹ , Vargas Liliana ² , Rodriguez Jassiel R. ³ , Estrada Miguel ⁴ , Castillon Felipe ⁴ , Lopez Martin ¹ , Simakova Irina ⁵ , Simakov Andrey ⁴

Affiliations

1	Posgrado en Ciencia e Ingeniería de Materiales, Universidad Nacional Autonoma de Mexico, Centro de Nanociencias y Nanotecnología, Km. 107 Carretera Tijuana a Ensenada, C.P. 22860, Ensenada, Baja California, Mexico
2	Posgrado en Nanociencias, Centro de Investigacion Científica y de Educacion Superior de Ensenada, Carretera Ensenada, Tijuana 3918, Zona Playitas, C.P. 22860, Ensenada, BC, Mexico
3	Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA
4	Universidad Nacional Autonoma de Mexico, Centro de Nanociencias y Nanotecnología, Km. 107 Carretera Tijuana a Ensenada, C.P. 22860, Ensenada, Baja, California, Mexico
5	Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 630090, Novosibirsk, Russia

Funding (4)

1	National Autonomous University of Mexico	203117
2	Federal Agency for Scientific Organizations	0303-2016-0012 (V.47.1.4.)
3	National Autonomous University of Mexico	PE210219 (PAPIME)
4	National Council of Science and Technology	414045

Ultra-thin hollow nanospheres of Ce-Zr-O mixed oxides were successfully synthesized in a one-pot mode via ultrasonic spray pyrolysis, using a highly diluted aqueous solution of cerium and/or zirconium nitrate salts as nanospheres precursors and glycine as a template. The structure, morphology, and physicochemical properties of the samples were carefully studied by SEM, TEM, XRD, FT-IR, UV-Vis, Raman, and XPS. Obtained nanospheres composed of small CexZryO, CeO2, or ZrO2 nanoparticles with low crystallinity featured high uniformity and relatively low wall thickness (c.a. 5 nm) with an external diameter c.a. 100 nm. It was found that interaction between CeO2 and ZrO2 proceeded almost entirely with the formation of the corresponding mixed phases even at a short residence time (c.a. 2 s) in the high-temperature zone of a spray pyrolysis reactor. To the best of our knowledge, this is the first work on the synthesis of uniform ceria-zirconia hollow nanospheres by spray pyrolysis technique. The suggested approach of Ce-Zr nanospheres synthesis opens an effective, promising, and simple way for large-scale preparation of nanospheres and nanoreactors with a tunable microstructure using different precursors for wide commercial applications.

Aguirre S.B. , Vargas L. , Rodriguez J.R. , Estrada M. , Castillon F. , Lopez M. , Simakova I. , Simakov A.
One-Pot Synthesis of Uniform Hollow Nanospheres of Ce–Zr–O Mixed Oxides by Spray Pyrolysis
Microporous and Mesoporous Materials. 2020. V.294. 109886 :1-7. DOI: 10.1016/j.micromeso.2019.109886 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Sep 26, 2019
Accepted:	Nov 12, 2019
Published online:	Nov 14, 2019
Published print:	Mar 1, 2020

Web of science:	WOS:000510087900048
Scopus:	2-s2.0-85076580497
Elibrary:	43215148
Chemical Abstracts:	2019:2268717
OpenAlex:	W2984626303

DB	Citing
Scopus	9
Web of science	7
Elibrary	7
OpenAlex	8