A series of Co₉S₈ nanoparticles (NPs) embedded, N, S co-doped mesoporous carbons were synthesized by the combination of evaporation induced self-assembly (EISA) method and simple pyrolysis method. Melamine formaldehyde (MF) resin was used as carbon and nitrogen precursor. CoCl₂ and thiourea were utilized as cobalt and sulfur precursors, respectively. The as-obtained samples possessed mesoporous structure. The optimized sample of MF4.0T6.0 exhibited excellent electrochemical performance towards hydrogen evolution reaction (HER) in wide pH range, which achieved a current density of 10 mA cm-2 at 163 mV (pH 0), 149 mV (pH 14), and 325 mV (pH 7).

中文翻译：

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N, S 双掺杂介孔碳负载的 Co9S8 纳米颗粒作为宽 pH 范围内的高效产氢电催化剂

通过蒸发诱导自组装(EISA)法和简单热解法的结合，合成了一系列嵌入Co ₉ S ₈纳米颗粒(NPs)、N、S共掺杂的介孔碳。三聚氰胺甲醛（MF）树脂用作碳和氮前体。CoCl ₂和硫脲分别用作钴和硫前体。所获得的样品具有介孔结构。MF4.0T6.0的优化样品在宽pH范围内对析氢反应（HER）表现出优异的电化学性能，在163 mV（pH 0），149 mV（pH 14）下实现了10 mA cm-2的电流密度, 和 325 mV (pH 7)。