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Nanomaterials enhancing the solid-state storage and decomposition of ammonia

journal contribution
posted on 08.05.2022, 00:00 authored by Srikanth MatetiSrikanth Mateti, L Saranya, G Sathikumar, Qiran CaiQiran Cai, Y Yao, Ying (Ian) ChenYing (Ian) Chen
Abstract
Hydrogen is ideal for producing carbon-free and clean-green energy with which to save the world from climate change. Proton exchange membrane fuel cells use to hydrogen to produce 100% clean energy, with water the only by-product. Apart from generating electricity, hydrogen plays a crucial role in hydrogen-powered vehicles. Unfortunately, the practical uses of hydrogen energy face many technical and safety barriers. Research into hydrogen generation and storage and reversibility transportation are still in its very early stages. Ammonia (NH3) has several attractive attributes, with a high gravimetric hydrogen density of 17.8 wt% and theoretical hydrogen conversion efficiency of 89.3%. Ammonia storage and transport are well-established technologies, making the decomposition of ammonia to hydrogen the safest and most carbon-free option for using hydrogen in various real-time applications. However, several key challenges must be addressed to ensure its feasibility. Current ammonia decomposition technologies require high temperatures, pressures and non-recyclable catalysts, and a sustainable decomposition mechanism is urgently needed. This review article comprehensively summarises current knowledge about and challenges facing solid-state storage of ammonia and decomposition. It provides potential strategic solutions for developing a scalable process with which to produce clean hydrogen by eliminating possible economic and technical barriers.

History

Journal

Nanotechnology

Volume

33

Issue

22

Article number

ARTN 222001

Pagination

1 - 14

Publisher

IOP Publishing

Location

Bristol, Eng.

ISSN

0957-4484

eISSN

1361-6528

Language

English

Publication classification

C1 Refereed article in a scholarly journal