Hydrogen-iodide decomposition over Pd CeO 2 nanocatalyst for hydrogen production in sulfur-iodine thermochemical cycle

Hdl Handle:
http://hdl.handle.net/10149/621381
Title:
Hydrogen-iodide decomposition over Pd CeO 2 nanocatalyst for hydrogen production in sulfur-iodine thermochemical cycle
Authors:
Singhania, A. (Amit); Krishnan, V. (Venkatesan); Bhaskarwar, A. N. (Ashok N.); Bhargava, B. (Bharat); Parvatalu, D. (Damaraju)
Affiliation:
Teesside Univerity. Technology Futures Institute
Citation:
Singhania, A., Krishnan, V., Bhaskarwar, A. N., Bhargava, B., Parvatalu, D. (2017) 'Hydrogen-iodide decomposition over Pd CeO 2 nanocatalyst for hydrogen production in sulfur-iodine thermochemical cycle' International Journal of Hydrogen Energy; Online first 29 July 2017 : DOI: 10.1016/j.ijhydene.2017.07.088
Publisher:
Elsevier
Journal:
International Journal of Hydrogen Energy
Issue Date:
29-Jul-2017
URI:
http://hdl.handle.net/10149/621381
DOI:
10.1016/j.ijhydene.2017.07.088
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0360319917329142
Abstract:
A highly active and stable catalyst for hydrogen-iodide decomposition reaction in sulfur-iodine (SI) cycle has been prepared in the form of Pdsingle bondCeO2 nanocatalyst by sol-gel method with different calcination temperatures (300 °C, 500 °C, and 700 °C). XRD and TEM confirmed a size around 6–8 nm for Pdsingle bondCeO2 particles calcined at 300 °C. Raman study revealed large number oxygen vacancies in Pdsingle bondCeO2-300 when compared to Pdsingle bondCeO2-500 and Pdsingle bondCeO2-700. With increase in calcination temperature, the average particle size increased whereas the specific surface area and number of oxygen vacancies decreased. Hydrogen-iodide catalytic-decomposition was carried out in the temperature range of 400°C–550 °C in a quartz-tube, vertical, fixed-bed reactor with 55 wt % aqueous hydrogen-iodide feed over Pdsingle bondCeO2 catalyst using nitrogen as a carrier gas. Pdsingle bondCeO2-300 showed hydrogen-iodide conversion of 23.3%, which is close to the theoretical equilibrium conversion of 24%, at 550 °C. It also showed a reasonable stability with a time-on-stream of 5 h.
Type:
Article
Language:
en
Keywords:
Hydrogen-iodide decomposition; Palladium; Ceria; Catalytic activity; Hydrogen production; Sulfur-iodine cycle
ISSN:
0360-3199
Sponsors:
This work was supported by the ONGC Energy Centre Trust (OECT) [RP02148], India.
Rights:
Following a 12 month embargo author can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/issn/0360-3199/ [Accessed: 07/08/2017]

Full metadata record

DC FieldValue Language
dc.contributor.authorSinghania, A. (Amit)en
dc.contributor.authorKrishnan, V. (Venkatesan)en
dc.contributor.authorBhaskarwar, A. N. (Ashok N.)en
dc.contributor.authorBhargava, B. (Bharat)en
dc.contributor.authorParvatalu, D. (Damaraju)en
dc.date.accessioned2017-08-07T11:02:19Z-
dc.date.available2017-08-07T11:02:19Z-
dc.date.issued2017-07-29-
dc.identifier.citationInternational Journal of Hydrogen Energy; Online first 29 July 2017en
dc.identifier.issn0360-3199-
dc.identifier.doi10.1016/j.ijhydene.2017.07.088-
dc.identifier.urihttp://hdl.handle.net/10149/621381-
dc.description.abstractA highly active and stable catalyst for hydrogen-iodide decomposition reaction in sulfur-iodine (SI) cycle has been prepared in the form of Pdsingle bondCeO2 nanocatalyst by sol-gel method with different calcination temperatures (300 °C, 500 °C, and 700 °C). XRD and TEM confirmed a size around 6–8 nm for Pdsingle bondCeO2 particles calcined at 300 °C. Raman study revealed large number oxygen vacancies in Pdsingle bondCeO2-300 when compared to Pdsingle bondCeO2-500 and Pdsingle bondCeO2-700. With increase in calcination temperature, the average particle size increased whereas the specific surface area and number of oxygen vacancies decreased. Hydrogen-iodide catalytic-decomposition was carried out in the temperature range of 400°C–550 °C in a quartz-tube, vertical, fixed-bed reactor with 55 wt % aqueous hydrogen-iodide feed over Pdsingle bondCeO2 catalyst using nitrogen as a carrier gas. Pdsingle bondCeO2-300 showed hydrogen-iodide conversion of 23.3%, which is close to the theoretical equilibrium conversion of 24%, at 550 °C. It also showed a reasonable stability with a time-on-stream of 5 h.en
dc.description.sponsorshipThis work was supported by the ONGC Energy Centre Trust (OECT) [RP02148], India.en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0360319917329142en
dc.rightsFollowing a 12 month embargo author can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/issn/0360-3199/ [Accessed: 07/08/2017]en
dc.subjectHydrogen-iodide decompositionen
dc.subjectPalladiumen
dc.subjectCeriaen
dc.subjectCatalytic activityen
dc.subjectHydrogen productionen
dc.subjectSulfur-iodine cycleen
dc.titleHydrogen-iodide decomposition over Pd CeO 2 nanocatalyst for hydrogen production in sulfur-iodine thermochemical cycleen
dc.typeArticleen
dc.contributor.departmentTeesside Univerity. Technology Futures Instituteen
dc.identifier.journalInternational Journal of Hydrogen Energyen
or.citation.harvardSinghania, A., Krishnan, V., Bhaskarwar, A. N., Bhargava, B., Parvatalu, D. (2017) 'Hydrogen-iodide decomposition over Pd CeO 2 nanocatalyst for hydrogen production in sulfur-iodine thermochemical cycle' International Journal of Hydrogen Energy; Online first 29 July 2017 : DOI: 10.1016/j.ijhydene.2017.07.088-
dc.eprint.versionPost-printen
dc.embargo12 monthsen
dc.date.accepted217-07-12-
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