70999 20200221144319.0 doi 10.1016/j.ijhydene.2016.05.285 sideral 96682 ART-2016-96682 eng Senthil Kumar, S. M. Hydrothermal assisted morphology designed MoS2 material as alternative cathode catalyst for PEM electrolyser application 2016 Access copy available to the general public Unrestricted In this work, we developed a simple and cost-effective hydrothermal route to regulate the formation of molybdenum disulfide (MoS2) in different morphologies, like, nano-sheet, nano-capsule and nano-flake structure by controlling the reaction temperature and sulphur precursor employed. Such a fine tuning of different morphologies yields a leverage to obtain novel shapes with high surface area to employ them as suitable candidates for hydrogen evolution catalysts. Moreover, we report here the first time observation of MoS2 nano-capsule formation via environmentally benign hydrothermal route and characterized them by X-ray diffraction (XRD), nitrogen adsorption and desorption by Brunaer–Emmett–Teller (BET) method, scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) and X-ray photo-electron spectroscopy (XPS) techniques. MoS2 nano-capsules exhibits superior activity towards hydrogen evolution reaction (HER) with a low over-potential of 120 mV (RHE), accompanied by large exchange current density and excellent stability in 0.5 M H2SO4 solution. MoS2 nano-capsule catalyst was coated on solid proton conducting membrane (Nafion) and IrO2 as anode catalyst. The performance of the catalyst was evaluated in MEA mode for 200 h at 2 V without any degradation of electrocatalytic activity. info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.582 2016 ELECTROCHEMISTRY 7 / 29 = 0.241 2016 Q1 T1 ENERGY & FUELS 28 / 92 = 0.304 2016 Q2 T1 CHEMISTRY, PHYSICAL 45 / 145 = 0.31 2016 Q2 T1 1.145 2016 Condensed Matter Physics 2016 Q1 Renewable Energy, Sustainability and the Environment 2016 Q1 Fuel Technology 2016 Q1 Energy Engineering and Power Technology 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Selvakumar, K. Thangamuthu, R. Karthigai Selvi, A. Ravichandran, S. Sozhan, G. Rajasekar, K. (orcid)0000-0003-3363-2912 Navascues, N. (orcid)0000-0002-2966-9088 Irusta, S. Universidad de Zaragoza 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 41, 31 (2016), 13331-13340 Int. j. hydrogen energy International Journal of Hydrogen Energy 0360-3199 1077288 http://zaguan.unizar.es/record/70999/files/texto_completo.pdf Postprint 67963 http://zaguan.unizar.es/record/70999/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:70999 articulos driver 2020-02-21-13:40:45 ARTICLE