Tetraalkylammonium Salts of Platinum Nitrato Complexes: Isolation, Structure, and Relevance to the Preparation of PtOx/CeO2 Catalysts for Low-Temperature CO Oxidation | Sciact - CRIS-система Института катализа

Tetraalkylammonium Salts of Platinum Nitrato Complexes: Isolation, Structure, and Relevance to the Preparation of PtOx/CeO2 Catalysts for Low-Temperature CO Oxidation Научная публикация

Журнал

Inorganic Chemistry
ISSN: 0020-1669 , E-ISSN: 1520-510X

Вых. Данные

Год: 2019, Том: 58, Страницы: 6075-6087 Страниц : 13 DOI: 10.1021/acs.inorgchem.9b00370

Ключевые слова

X-ray photoelectron-spectroscopy; metal-support interaction; molecular-orbital methods; carbon-monoxide; Pt/CeO2 catalysts; nanoparticles; implementation; potentials; absorption; morphology

Авторы

Vasilchenko Danila ^1,2 , Topchiyan Polina ^1,2 , Berdyugin Semen ¹ , Filatov Evgeny ^1,3 , Tkachev Sergey ¹ , Baidina Iraida ¹ , Komarov Vladislav ^1,3 , Slavinskaya Elena ² , Stadnichenko Andrey ^2,3 , Gerasimov Evgeny ^2,3

Организации

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
2	Novosibirsk State University, 630090 Novosibirsk, Russian Federation
3	Boreskov Institute of Catalysis, 630090 Novosibirsk, Russian Federation

Информация о финансировании (1)

Российский научный фонд

18-73-00054

A series of tetraalkylammonium salts with anionic platinum nitrato complexes (Me4N)2[Pt2(μ-OH)2(NO3)8] (1), (Et4N)2[Pt2(μ-OH)2(NO3)8] (2), (n-Pr4N)2[Pt2(μ-OH)2(NO3)8] (3b), (n-Pr4N)2[Pt(NO3)6] (3a), and (n-Bu4N)2[Pt(NO3)6] (4) were isolated from nitric acid solutions of [Pt(H2O)2(OH)4] in high yield. The structures of salts 2, 3a, 3b, and 4, prepared for the first time, were characterized by X-ray diffraction. The sorption of [Pt(NO3)6]2– and [Pt2(μ-OH)2(NO3)8]2– complexes onto the ceria surface from acetone solutions of salts 4 and 1 was examined. The dimeric anion was shown to quickly and irreversibly chemisorb onto the CeO2 carrier, selectively transforming into Pt(II) centers after thermal treatment, becoming active in the low-temperature CO oxidation reaction (T50% = 110 °C at a space velocity of 240 000 h–1). By contrast, the homoleptic complex [Pt(NO3)6]2– did not interact with the ceria, which may be attributed to the substitutional inertness of the [Pt(NO3)6]2– anion. We believe that the strategy based on the sorption of polynuclear platinum nitrato complexes is an effective route to prepare ionic platinum species uniformly distributed on an oxide carrier for various catalytic applications.

Vasilchenko D. , Topchiyan P. , Berdyugin S. , Filatov E. , Tkachev S. , Baidina I. , Komarov V. , Slavinskaya E. , Stadnichenko A. , Gerasimov E.
Tetraalkylammonium Salts of Platinum Nitrato Complexes: Isolation, Structure, and Relevance to the Preparation of PtOx/CeO2 Catalysts for Low-Temperature CO Oxidation
Inorganic Chemistry. 2019. V.58. P.6075-6087. DOI: 10.1021/acs.inorgchem.9b00370 WOS Scopus РИНЦ CAPlus PMID OpenAlex

Поступила в редакцию:	8 февр. 2019 г.
Опубликована online:	5 апр. 2019 г.
Опубликована в печати:	6 мая 2019 г.

Web of science:	WOS:000467351100079
Scopus:	2-s2.0-85064355406
РИНЦ:	38746726
Chemical Abstracts:	2019:666523
PMID (PubMed):	30951300
OpenAlex:	W2931489268

БД	Цитирований
Scopus	38
Web of science	35
РИНЦ	38
OpenAlex	35