Premium
CO 2 ‐Mediated H 2 Storage‐Release with Nanostructured Catalysts: Recent Progresses, Challenges, and Perspectives
Author(s) -
Asefa Tewodros,
Koh Katherine,
Yoon Chang Won
Publication year - 2019
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201901158
Subject(s) - dehydrogenation , energy carrier , nanomaterial based catalyst , hydrogen storage , renewable energy , catalysis , materials science , fossil fuel , formate , energy storage , hydrogen economy , nanotechnology , hydrogen fuel , hydrogen , fuel cells , waste management , chemical engineering , nanoparticle , chemistry , organic chemistry , engineering , power (physics) , physics , quantum mechanics , electrical engineering
It has increasingly become clear that economic growth worldwide based on fossil fuel energy supply cannot be sustained; thus, alternative, renewable energy sources and carriers must be urgently developed to maintain growth. Dihydrogen (H 2 ), which can produce energy without generating environmental pollutants, can play a major role in this endeavor. However, to use H 2 in renewable energy systems, systems and materials that can store and transport it, or convert it into easier‐to‐handle/transport synthetic fuels, need to be developed. In this article, first, many of the issues related to both homogeneous and heterogeneous catalysts that are being developed to help H 2 's use as energy carrier are discussed. More focus is then given to heterogeneous nanocatalysts that are developed for reversible CO 2 ‐mediated hydrogenation and dehydrogenation reactions involving chemical hydrogen carriers and delivery systems, mainly formic acid/CO 2 and formate/bicarbonate. The challenges associated with the development of nanocatalysts based on earth‐abundant elements for dehydrogenation and hydrogenation reactions of these compounds for H 2 storage and release are emphasized in the discussions. Finally, the pressing research questions and major issues that need to be addressed in the near future to help the realization of the “hydrogen economy” are outlined.