Evaluation of Activation Energies for Pairwise and Non-Pairwise Hydrogen Addition to Propyne Over Pd/Aluminosilicate Fiberglass Catalyst by Parahydrogen-Induced Polarization (PHIP)

Evaluation of Activation Energies for Pairwise and Non-Pairwise Hydrogen Addition to Propyne Over Pd/Aluminosilicate Fiberglass Catalyst by Parahydrogen-Induced Polarization (PHIP) Научная публикация

Журнал

Applied Magnetic Resonance
ISSN: 0937-9347

Вых. Данные

Год: 2014, Том: 45, Номер: 10, Страницы: 1051-1061 Страниц : 11 DOI: 10.1007/s00723-014-0586-7

Авторы

Salnikov Oleg G. ^1,2 , Barskiy Danila A. ^1,2 , Burueva Dudari B. ^1,2 , Gulyaeva Yulia K. ³ , Balzhinimaev Bair S. ³ , Kovtunov Kirill V. ^1,2 , Koptyug Igor V. ^1,2

Организации

1	International Tomography Center, SB RAS, Institutskaya St. 3A, Novosibirsk, 630090, Russia
2	Novosibirsk State University, Pirogova St. 2, Novosibirsk, 630090, Russia
3	Boreskov Institute of Catalysis, SB RAS, 5 Acad. Lavrentiev Pr, Novosibirsk, 630090, Russia

Hydrogenation of propyne to propene over Pd/aluminosilicate fiberglass catalyst in the temperature range 175–350 °C was investigated with the use of parahydrogen-induced polarization (PHIP) technique. Activation energies for both pairwise and non-pairwise H2 addition routes were estimated. It was found that at 175–275 °C the activation energies for hydrogen addition to the triple bond of propyne have similar values (about 60–70 kJ/mol) for both routes of hydrogen addition. At higher temperatures (275–350 °C), the rate constant for pairwise hydrogen addition reaches a maximum value while the rate constant for non-pairwise hydrogen addition continues to increase with increasing temperature.

Salnikov O.G. , Barskiy D.A. , Burueva D.B. , Gulyaeva Y.K. , Balzhinimaev B.S. , Kovtunov K.V. , Koptyug I.V.
Evaluation of Activation Energies for Pairwise and Non-Pairwise Hydrogen Addition to Propyne Over Pd/Aluminosilicate Fiberglass Catalyst by Parahydrogen-Induced Polarization (PHIP)
Applied Magnetic Resonance. 2014. V.45. N10. P.1051-1061. DOI: 10.1007/s00723-014-0586-7

Опубликована в печати:

1 окт. 2014 г.

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