Facile Synthesis of Nanoscale CuO and NiO via the PVA-Assisted Sol-Gel Method and Their Exploration in the Catalytic Epoxidation of Styrene

Facile Synthesis of Nanoscale CuO and NiO via the PVA-Assisted Sol-Gel Method and Their Exploration in the Catalytic Epoxidation of Styrene Реферативная запись

Журнал

Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555

Вых. Данные

Год: 2024, Том: 16, Номер: 4, Страницы: 382–393 Страниц : DOI: 10.1134/S2070050424700211

Авторы

Bepari Ruhul Amin ^1,2 , Mochahari Nabajyoti ² , Siddique Kibriya ³ , Das Birinchi Kumar ^1,2

Организации

1	Department of Chemistry, Gauhati University, Assam, Guwahati-781014 India
2	Department of Chemistry, Bhattadev University, Bajali, Assam, Pathsala-781325 India
3	Department of Instrumentation & USIC, Gauhati University, Assam, Guwahati-781014 India

Nanoscale oxides of copper and nickel, with diameter 17 and 25 nm respectively, have been synthesized via an easy sol-gel method using polyvinyl alcohol. The method involves the simple dispersion of metal ions (M2+ = Cu or Ni) into the PVA gel and subsequent calcination of the dried gel at 400°C for 3 h. The synthesized oxide materials are characterized by different physical tools like TGA, powder XRD, SEM, TEM and DRS UV-visible spectroscopic technique. The oxides are found to be very efficient catalysts in the epoxidation of styrene. CuO gives 87% styrene conversion and 88% SO selectivity while, NiO gives 69% styrene conversion and 80% with TBHP as an oxidant at the end of 6 h. Both the catalysts can suitably be reused for several successive runs without appreciable loss in activity and selectivity. The cost–effective synthesis, excellent catalytic performance and reusability make these oxides promising catalysts for the industrial use.

Bepari R.A. , Mochahari N. , Siddique K. , Das B.K.
Facile Synthesis of Nanoscale CuO and NiO via the PVA-Assisted Sol-Gel Method and Their Exploration in the Catalytic Epoxidation of Styrene
Catalysis in Industry. 2024. V.16. N4. P.382–393. DOI: 10.1134/S2070050424700211 WOS Scopus РИНЦ OpenAlex

Bepari R. , Mochahari N. , Siddique K. , Das B.
Простой синтез наноразмерных CuO и NiO золь-гель методом с использованием поливинилового спирта и применение этих оксидов в каталитическом эпоксидировании стирола
Катализ в промышленности. 2024. №3. С.72. DOI: 10.18412/1816-0387-2024-3-72 РИНЦ OpenAlex

Поступила в редакцию:	24 нояб. 2023 г.
Принята к публикации:	7 февр. 2024 г.
Опубликована online:	27 янв. 2025 г.

Web of science:	WOS:001408605200006
Scopus:	2-s2.0-85217646101
РИНЦ:	80240196
OpenAlex:	W4406868898