Numerous efficient catalysts have been introduced towards hydrogen evolution to produce H 2 via water electrolysis. Besides developing highly active catalysts, considerable efforts should be focused on the reaction condition to accelerate electrochemical reactions. Increasing the operating temperature enhances the performances. Here, we demonstrate that a combination of a mature electro-thermal system with the state-of-art water splitting cells can promote hydrogen production efficiency in acid water. In particular, the current density of carbon coated Ag wire increased 12 mA cm −2 at elevated temperatures in comparison with room temperature. This heat-induced current increase was six times of Ag wire without carbon coating. The hydrogen evolution improvement is attributed to a better heat distribution in the micro-region between carbon surface and electrolyte. Graphitized carbon in the carbon layer, offers electron transfer pathways, which is beneficial for ...

中文翻译：

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使用电热法改善高温下的氢气释放

已经引入了许多有效的催化剂以通过水电解产生氢气以产生H 2。除了开发高活性催化剂外，还应将大量精力集中在反应条件上以加速电化学反应。提高工作温度可提高性能。在这里，我们证明了成熟的电热系统与最新的水分解池的结合可以提高酸性水中的氢气生产效率。特别地，与室温相比，在升高的温度下，碳包覆的Ag线的电流密度增加了12mA cm -2。这种热感应电流的增加是没有碳涂层的银线的六倍。氢逸出的改善归因于在碳表面和电解质之间的微区中更好的热分布。碳层中的石墨化碳提供电子转移途径，这对...