Selective Hydrogenation of Hexanoic Acid to Hexanol Under Mild Conditions over Titania-Based Pt-Re Catalyst - Доклады на конференциях | Sciact - CRIS-система Института катализа

Selective Hydrogenation of Hexanoic Acid to Hexanol Under Mild Conditions over Titania-Based Pt-Re Catalyst Доклады на конференциях

Язык

Английский

Тип доклада

Стендовый

Конференция

EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources”
30 авг. - 4 сент. 2015 , Казань

Авторы

Сукнёв Алексей Петрович ¹ , Зайковский Владимир Иванович ^1,2 , Каичев Василий Васильевич ^1,2 , Паукштис Евгений Александрович ^1,2 , Садовская Екатерина Михайловна ^1,2 , Бальжинимаев Баир Сыдыпович ¹

Организации

1	Институт катализа им. Г.К. Борескова СО РАН
2	Новосибирский национальный исследовательский государственный университет

The Pt-ReOx species (x ≤ 1) of atomic dispersion were formed and stabilized on the titania surface. Their size, charge and chemical composition were characterized by means of HRTEM/STEM with EDX mapping, XPS, FTIR. It was shown these centers with Re:Pt = 2 are highly active and selective in hydrogenation of carboxylic acid to alcohol under very mild conditions (T = 110 C, P = 50 bar). The reaction rate constant for hydrogenation of hexanoic acid increased linearly with Pt content. As for Ru-NPy pair in homogeneous pincer-type complexes, the neighboring Pt-O atoms form a similar pair capable to dissociate H2 heterolytically with generation of Pt hydride to hydrogenate the carbonyl group of acid. Indeed, the TOF (40 h-1) and selectivity (99%) are approaching those of homogeneous catalyst. The first order kinetic model described well the kinetic data obtained in a wide range of reaction conditions.

Suknev A.P. , Zaikovskii V.I. , Kaichev V.V. , Paukshtis E.A. , Sadovskaya E.M. , Bal'zhinimaev B.S.
Selective Hydrogenation of Hexanoic Acid to Hexanol Under Mild Conditions over Titania-Based Pt-Re Catalyst
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” 30 Aug - 4 Sep 2015