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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Two-dimensional transition metal chalcogenide composite/reduced graphene oxide hybrid materials for hydrogen evolution application
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Two-dimensional transition metal chalcogenide composite/reduced graphene oxide hybrid materials for hydrogen evolution application

机译：二维过渡金属硫属化物复合/氢气进化氧化物杂交材料

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MoFeNiS nanocomposites and MoFeNiS/reduced graphene oxide (rGO) hybrid materials were synthesized by a modified hydrothermal method. The catalytic activity of catalysts for the hydrogen evolution reaction (HER) was investigated at acidic, alkaline and neutral media. The MoFeNiS/rGO catalyst was found to be very active for HER, and this process is probably depended on Volmer-Heyrovsky mechanism with the desorption process as the rate-determining step. Moreover, the MoFeNiS/rGO catalyst indicated the low onset overpotential of -100 mV, Tafel slope of 48.68 mV dec(-1), and the overpotential of -140 mV to reach the current density of 10 mA cm(-2). The excellent HER activity of MoFeNiS/rGO hybrid catalyst is probably attributed to the high surface area and conductivity of rGO, the existence of porosity in the catalyst, and the catalytic synergistic effect between MoS2, NiS, and FeMO4S6. (C) 2019 Elsevier Ltd. All rights reserved.
机译：通过改性的水热法合成了Mofenis纳米复合材料和MOFENIS / SEXLEX氧化物（RGO）杂化材料。 在酸性，碱性和中性介质中研究了氢进化反应（她）催化剂的催化活性。 发现MoFenis / Rgo催化剂对她非常活跃，并且该过程可能取决于Volmer-Heyrovsky机制，以解吸过程作为速率确定步骤。 此外，MOFENIS / RGO催化剂表明，48.68mV（-1）的100mV，TAFEL斜率的低发作过势，以及-140mV的过电位，达到10 mA cm（-2）的电流密度。 Mofenis / Rgo杂交催化剂的优异活性可能归因于RGO的高表面积和导电性，催化剂中的孔隙率存在，以及MOS2，NIS和FEMO4S6之间的催化协同效应。 （c）2019 Elsevier Ltd.保留所有权利。

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