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N,P-dual doped molybdenum disulfide nanosheets for enhanced electrocatalytic hydrogen evolution reaction

机译:N,P双掺杂钼二硫化物纳米片,用于增强电催化氢进化反应

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The need to develop non precious electrocatalysts for effective hydrogen evolution reaction, towards clean and sustainable energy resources has emerged as the prime issue from the perspective of material scientists. Here in this work, we show that synergistic effect of chemical co-doping with nitrogen and phosphorus activates the inert basal planes and aids in faster electron transfer to achieve extraordinarily enhanced hydrogen evolution reaction in acidic medium. The synthesized N,P-dual doped Molybdenum disulfide nanosheets exhibited excellent electrocatalytic activity for HER with a Tafel slope of 92 mVdec~(-1) and a low overpotential of 0.295 V (vs RHE without iR compensation) at 10 mAcm~(-2). The synthesized samples exhibited satisfactory stability in the acidic medium with just 0.016 mV loss of the onset potential at the current density 60 mAcm~(-2).
机译:需要为有效的氢气催化剂开发非珍贵的电催化剂,从材料科学家的角度出现为清洁和可持续的能源资源。 在这项工作中,我们表明化学共掺杂与氮和磷的协同作用激活惰性基层和助剂,以更快的电子转移,以实现酸性介质中的异常增强的氢气进化反应。 合成的N,P双掺杂钼二硫化物纳米型纳米晶片表现出优异的92mVdec〜(-1)的Tafel斜率和0.295 V(VS RHE的VS RHE)的低过电容,在10 macm〜(-2 )。 合成样品在酸性培养基中表现出令人满意的稳定性,在电流密度60mmm〜(-2)处的起始电位仅为0.016mV损失。

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