Increasing demands on energy resources have impeded the future development of modern society. Current dependence on combustion of fossil fuels created massive CO2 emission and caused severe Greenhouse effects. The use of clean energy technologies to reduce the reliance on traditional fossil fuels become critically important for our society. Hydrogen has been considered as an ideal energy carrier for many decades already since it is clean and carbon-free. Hydrogen fuel cells (HFC) have been considered as a promising candidate To generate electricity from hydrogen in an efficient pathway. However, the critical limiting factor for wide application of HFCs is the storage of hydrogen. To date, storing pure hydrogen typically requires 350–700 bar at room temperature and liquefaction of pure hydrogen needs extreme cryogenic temperatures (-252.8°C) under one atmosphere pressure. These limitations in pure hydrogen storage have stimulated the exploration of desired hydrogen storage materials for safe and economical utilization of the HFCs. Currently, the primary candidates for chemically storing hydrogen are solid hydrides, hydrocarbons such as methanol, or NH3, and liquid organic hydrogen carriers (LOHCs). Ammonia has a 17.65% mass fraction of hydrogen and 45% higher volumetric hydrogen density than pure liquid hydrogen. As a result, ammonia may be the better choice due to its high hydrogen content and ease of liquefying. Existing NH3 cracking methods typically achieve H2 generation by heating the catalyst above 4000C, which is significantly higher than the optimum operating temperature (800C) for the profitable proton membrane hydrogen fuel cell, causing additional cost in cooling the produced hydrogen. NH3 electrolysis provides a highly efficient and clean pathway for the pure H2 generation at the ambient temperature. If the produced H2 completely reacts with the oxygen in fuel cell without any energy loss, the maximum theoretical energy efficiency of generating H2 from liquid ammonia electrolysis is 88.7%. Therefore, exploring effective, earth-abundant, and stable electrocatalysts for the NH3 electrolysis is one of the crucial problems that can enable the advancement of H2 economy using NH3 as the transport medium.

Development of effective and stable catalysts for ammonia electrolysis

Macromolecular Chemistry: The Second Century

[Author Benefits](https://scimeetings.acs.org/?utm_source=pubs_content_marketing&utm_medium=website&utm_campaign=0320_MCF_NPI_Launch_Spring_Homepage&ref=pubs_content_marketing)

[How to use SciMeetings](https://storage.googleapis.com/dl.morressier.com/acs/SciMeetings-ACSSpring2020-HowToGuide_M3020-Final.pdf)

[Frequently Asked Questions](https://storage.googleapis.com/dl.morressier.com/acs/SciMtng_ACSNMSp2020_FAQ_M3120_Final.pdf)

ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.