title: Interface confined hydrogen evolution reaction in zero valent metal nanoparticles-intercalated molybdenum disulfide.
abstract: Interface confined reactions, which can modulate the bonding of reactants with catalytic centres and influence the rate of the mass transport from bulk solution, have emerged as a viable strategy for achieving highly stable and selective catalysis. Here we demonstrate that 1T'-enriched lithiated molybdenum disulfide is a highly powerful reducing agent, which can be exploited for the in-situ reduction of metal ions within the inner planes of lithiated molybdenum disulfide to form a zero valent metal-intercalated molybdenum disulfide. The confinement of platinum nanoparticles within the molybdenum disulfide layered structure leads to enhanced hydrogen evolution reaction activity and stability compared to catalysts dispersed on carbon support. In particular, the inner platinum surface is accessible to charged species like proton and metal ions, while blocking poisoning by larger sized pollutants or neutral molecules. This points a way forward for using bulk intercalated compounds for energy related applications.
authors.affiliation: Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.|NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore 117456, Singapore.
authors.forename: Zhongxin
authors.initials: Z
authors.lastname: Chen
authors.affiliation: Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
authors.forename: Kai
authors.initials: K
authors.lastname: Leng
authors.affiliation: Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.|NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore 117456, Singapore.
authors.forename: Xiaoxu
authors.identifier: 0000-0001-9746-3770
authors.initials: X
authors.lastname: Zhao
authors.affiliation: Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
authors.forename: Souradip
authors.initials: S
authors.lastname: Malkhandi
authors.affiliation: Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.|Institute of Materials Research and Engineering, 2 FusionopolisWay, Singapore 138634, Singapore.
authors.forename: Wei
authors.initials: W
authors.lastname: Tang
authors.affiliation: Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
authors.forename: Bingbing
authors.initials: B
authors.lastname: Tian
authors.affiliation: Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai 200433, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Dong
authors.affiliation: Beijing Synchrotron Radiation Facility (BSRF), Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Lirong
authors.initials: L
authors.lastname: Zheng
authors.affiliation: Institute of Materials Research and Engineering, 2 FusionopolisWay, Singapore 138634, Singapore.
authors.forename: Ming
authors.initials: M
authors.lastname: Lin
authors.affiliation: Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
authors.forename: Boon Siang
authors.initials: BS
authors.lastname: Yeo
authors.affiliation: Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
authors.forename: Kian Ping
authors.initials: KP
authors.lastname: Loh