High Electrochemical Selectivity of Edge versus Terrace Sites in Two-Dimensional Layered MoS2 Materials
Top Cited Papers
- 10 November 2014
- journal article
- research article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 14 (12), 7138-7144
- https://doi.org/10.1021/nl503730c
Abstract
Exploring the chemical reactivity of different atomic sites on crystal surface and controlling their exposures are important for catalysis and renewable energy storage. Here, we use two-dimensional layered molybdenum disulfide (MoS2) to demonstrate the electrochemical selectivity of edge versus terrace sites for Li-S batteries and hydrogen evolution reaction (HER). Lithium sulfide (Li2S) nanoparticles decorates along the edges of the MoS2 nanosheet versus terrace, confirming the strong binding energies between Li2S and the edge sites and guiding the improved electrode design for Li-S batteries. We also provided clear comparison of HER activity between edge and terrace sites of MoS2 beyond the previous theoretical prediction and experimental proof.Keywords
Funding Information
- Basic Energy Sciences (DE-AC02-76-SFO0515)
This publication has 55 references indexed in Scilit:
- Highly Crystalline Multimetallic Nanoframes with Three-Dimensional Electrocatalytic SurfacesScience, 2014
- Pd-Pt Bimetallic Nanodendrites with High Activity for Oxygen ReductionScience, 2009
- Improved Oxygen Reduction Activity on Pt 3 Ni(111) via Increased Surface Site AvailabilityScience, 2007
- Size-dependent structure of MoS2 nanocrystalsNature Nanotechnology, 2007
- Controlled growth of tetrapod-branched inorganic nanocrystalsNature Materials, 2003
- Shape-Controlled Synthesis of Gold and Silver NanoparticlesScience, 2002
- Atom-Resolved Imaging of Dynamic Shape Changes in Supported Copper NanocrystalsScience, 2002
- Atomic-Resolution in Situ Transmission Electron Microscopy of a Promoter of a Heterogeneous CatalystScience, 2001
- Shape control of CdSe nanocrystalsNature, 2000
- Atomic-Scale Structure and Catalytic Reactivity of the RuO 2 (110) SurfaceScience, 2000