AUTHOR=Ma Tianyi , Zhang Lei , Wen Zhenhai TITLE=Editorial: Key Electrochemical Energy Reactions Catalyzed by Nanomaterials JOURNAL=Frontiers in Chemistry VOLUME=7 YEAR=2019 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2019.00881 DOI=10.3389/fchem.2019.00881 ISSN=2296-2646