Publication:
COx-free hydrogen production from ammonia decomposition over sepiolite-supported nickel catalysts

Placeholder

School / College / Institute

Organizational Unit
Organizational Unit

Program

KU Authors

Co-Authors

Soyer-Uzun, Sezen

Publication Date

Language

Embargo Status

Journal Title

Journal ISSN

Volume Title

Alternative Title

Abstract

Sepiolite, a clay mineral, was utilized as a support for nickel-based catalysts for COx-free hydrogen production from ammonia decomposition. First, the physical and chemical properties of sepiolite were changed by calcining it at temperatures varying from 500 to 1000 degrees C, then nickel was impregnated on these calcined supports and tested for ammonia decomposition at various temperatures following reduction at 650 degrees C. Results indicated that even though the catalysts contained almost the same amount of nickel, they showed different hydrogen production performance. Detailed characterization of the catalysts before and after reaction illustrated that the support obtained by calcining sepiolite at 700 degrees C shows good basic properties with a high surface area offering a high degree of nickel dispersion. These properties lead to promising hydrogen production rates which are on par, if not higher, than most of the nickel-based catalysts prepared on supports, which are either not cheap or require tedious preparation procedures.

Source

Publisher

Pergamon-Elsevier Science Ltd

Subject

Chemistry, Physical chemistry, Electrochemistry, Energy, Fuels

Citation

Has Part

Source

International Journal Of Hydrogen Energy

Book Series Title

Edition

DOI

10.1016/j.ijhydene.2018.04.057

item.page.datauri

Link

Rights

Copyrights Note

Endorsement

Review

Supplemented By

Referenced By

0

Views

0

Downloads

View PlumX Details