title: Interacting Carbon Nitride and Titanium Carbide Nanosheets for High-Performance Oxygen Evolution.
abstract: Free-standing flexible films, constructed from two-dimensional graphitic carbon nitride and titanium carbide (with MXene phase) nanosheets, display outstanding activity and stability in catalyzing the oxygen-evolution reaction in alkaline aqueous system, which originates from the Ti-N(x) motifs acting as electroactive sites, and the hierarchically porous structure with highly hydrophilic surface. With this excellent electrocatalytic ability, comparable to that of the state-of-the-art precious-/transition-metal catalysts and superior to that of most free-standing films reported to date, they are directly used as efficient cathodes in rechargeable zinc-air batteries. Our findings reveal that the rational interaction between different two-dimensional materials can remarkably promote the oxygen electrochemistry, thus boosting the entire clean energy system.
authors.affiliation: School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia.
authors.forename: Tian Yi
authors.identifier: http://orcid.org/0000-0002-1042-8700
authors.initials: TY
authors.lastname: Ma
authors.affiliation: School of Materials Science and Engineering, Henan Polytechnic University, Henan, Jiaozuo, 454000, China.
authors.forename: Jian Liang
authors.identifier: http://orcid.org/0000-0003-3570-5185
authors.initials: JL
authors.lastname: Cao
authors.affiliation: Department of Chemistry and Biochemistry, Kent State University, Kent, OH, 44240, USA.
authors.forename: Mietek
authors.identifier: http://orcid.org/0000-0002-1178-5611
authors.initials: M
authors.lastname: Jaroniec
authors.affiliation: School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia. s.qiao@adelaide.edu.au.
authors.forename: Shi Zhang
authors.identifier: http://orcid.org/0000-0002-4568-8422
authors.initials: SZ
authors.lastname: Qiao
keywords: carbon nitride; electrocatalysis; oxygen-evolution reaction; porous materials; titanium carbide