The low cost, low over‐potential loss, good catalytic properties for hydrogen evolution reaction (HER), high corrosion stability, commercially available, and could be applied in pH‐neutral solution and ambient temperature are important properties for the cathode materials when it is applied in microbial electrolysis cell (MEC) technology. This study has two‐pronged objectives: the first is to investigate the feasibility of titanium (Ti) and graphite felt (GF) coated with nickel (Ni), and the second is to generate hydrogen from the fermentation effluent (FE). The electrodeposition (ED) method was used to deposit Ni catalyst onto Ti (Ni/Ti) and GF (Ni/GF) surfaces. The scanning electron microscopy (SEM) and energy dispersive X‐ray (EDX) spectroscopy were used to characterize the cathode morphology and element composition. The catalytic properties of Ni/Ti and Ni/GF could be evaluated using the linear sweep voltammetry tests. The maximum volumetric H₂ production rates of MEC using Ni/Ti and Ni/GF cathodes were obtained at 0.39 ± 0.01 and 0.33 ± 0.03 m³ H₂ m⁻³ d⁻¹ respectively. The Ni/Ti and Ni/GF cathodes could be used as alternative cathodes while producing hydrogen from FE.

中文翻译：

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Ni / Ti和Ni / GF阴极在微生物电解槽中用于从发酵废水中制氢的可行性：迈向实际应用的一步

低成本，低过电势损失，良好的氢析出反应（HER）催化性能，高腐蚀稳定性，可商购，可用于pH中性溶液，环境温度是阴极材料的重要性能。应用于微生物电解池（MEC）技术。这项研究有两个目标：第一是研究钛（Ti）和涂有镍（Ni）的石墨毡（GF）的可行性，第二是从发酵废液（FE）产生氢气。电沉积（ED）方法用于将Ni催化剂沉积到Ti（Ni / Ti）和GF（Ni / GF）表面上。扫描电子显微镜（SEM）和能量色散X射线（EDX）光谱用于表征阴极形态和元素组成。Ni / Ti和Ni / GF的催化性能可以使用线性扫描伏安法测试进行评估。最大体积H使用Ni / Ti和Ni / GF阴极的MEC的₂生产率分别为0.39±0.01和0.33±0.03 m ³ H ₂ m ^-3  d ^-1。Ni / Ti和Ni / GF阴极可用作替代阴极，同时由FE产生氢气。