High activity in the dry reforming of methane using a thermally switchable double perovskite and <i>in situ</i> generated molecular level nanocomposite.

Hossain, Akbar; Bhattacharjee, Monotosh; Ghorai, Kalyan; Llorca, Jordi; Vasundhara, M; Roy, Sounak; Bera, Parthasarathi; Seikh, Md Motin; Gayen, Arup

High activity in the dry reforming of methane using a thermally switchable double perovskite and in situ generated molecular level nanocomposite.

Hossain, Akbar; Bhattacharjee, Monotosh; Ghorai, Kalyan; Llorca, Jordi; Vasundhara, M; Roy, Sounak; Bera, Parthasarathi; Seikh, Md Motin; Gayen, Arup.

Afiliación

Hossain A; Physical Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India. agayenju@yahoo.com.
Bhattacharjee M; Physical Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India. agayenju@yahoo.com.
Ghorai K; Physical Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India. agayenju@yahoo.com.
Llorca J; Institute of Energy Technologies, Department of Chemical Engineering and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, 08019 Barcelona, Spain.
Vasundhara M; Polymers and Functional Materials Department, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India.
Roy S; Department of Chemistry, Birla Institute of Science and Technology Pilani, Hyderabad Campus, Hyderabad 500078, India.
Bera P; Surface Engineering Division, CSIR - National Aerospace Laboratories, Bengaluru 560017, India.
Seikh MM; Department of Chemistry, Visva-Bharati, Santiniketan 731235, India. mdmotin.seikh@visva-bharati.ac.in.
Gayen A; Physical Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India. agayenju@yahoo.com.

Phys Chem Chem Phys ; 26(6): 5447-5465, 2024 Feb 07.

Article en En | MEDLINE | ID: mdl-38275155

ABSTRACT

ABSTRACT

This work emphasizes the dry reforming of methane (DRM) reaction on citrate sol-gel-synthesized double perovskite oxides. Phase pure La2NiMnO6 shows very impressive DRM activity with H2/CO = 0.9, hence revealing a high prospect of next-generation catalysts. Although the starting double perovskite phase gets degraded into mostly binary oxide phases after a few hours of DRM activity, the activity continues up to 100 h. The regeneration of the original double perovskite out of decomposed phases by annealing at near synthesis temperature, followed by the spectacular retention of activity, is rather interesting and hitherto unreported. This result unravels unique reversible thermal switching between the original double perovskite phase and decomposed phases during DRM without compromising the activity and raises challenge to understand the role of decomposed phases evolved during DRM. We have addressed this unique feature of the catalyst via structure-property relationship using the in situ generated molecular level nanocomposite.

Texto completo

Añadir a Mi BVS

Imprimir

XML

PubMed Links

Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido

Texto completo

Añadir a Mi BVS

Imprimir

XML

PubMed Links

Buscar en Google