One-Pot Synthesis of Uniform Hollow Nanospheres of Ce–Zr–O Mixed Oxides by Spray Pyrolysis | Sciact - CRIS-система Института катализа

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

Журнал

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

Вых. Данные

Год: 2020, Том: 294, Номер статьи : 109886, Страниц : 7 DOI: 10.1016/j.micromeso.2019.109886

Ключевые слова

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

Авторы

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

Организации

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

Информация о финансировании (4)

1	National Autonomous University of Mexico	203117
2	Федеральное агентство научных организаций России	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 CAPlus OpenAlex

Поступила в редакцию:	26 сент. 2019 г.
Принята к публикации:	12 нояб. 2019 г.
Опубликована online:	14 нояб. 2019 г.
Опубликована в печати:	1 мар. 2020 г.

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

БД	Цитирований
Scopus	9
Web of science	7
РИНЦ	7
OpenAlex	8