Magnetron sputter deposited NiCu alloy catalysts for production of hydrogen through electrolysis in alkaline water
Magnetron sputter deposited NiCu alloy catalysts for production of hydrogen through electrolysis in alkaline water
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DOI：
10.1016/j.mset.2018.06.010
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发表时间：
2018-12
影响因子：
--
通讯作者：
Mukesh Kumar;N. Shetti
中科院分区：
文献类型：
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作者：
Mukesh Kumar;N. Shetti
在−60 V衬底偏压下，采用直流磁控共溅射法制备了不同组成的碱性水中电解NiCu合金催化剂，并用掠入射X射线衍射仪测定了合金的纳米结晶度、晶格参数和晶粒度。用场发射扫描电子显微镜和透射电子显微镜对NiCu合金进行了元素分析和显微组织分析。为了分析NiCu合金对析氢反应(HER)的活性，在6 M KOH中进行了室温循环伏安测量，并进一步将其与催化剂中不同的铜含量进行了关联。
NiCu alloy catalysts with varying composition for electrolysis in alkaline water have been prepared by DC magnetron co-sputtering under Ar gas environment at substrate bias of −60 V. Nanocrystallinity, lattice parameters and grain size of the NiCu alloys have been measured by grazing incidence X-ray diffraction (GIXRD). Elemental and microstructural analysis of the NiCu alloy have been done by field emission scanning electron microscopy (FESEM) as well as transmission electron microscopy (TEM). To analyze the NiCu alloys activity towards hydrogen evolution reaction (HER), cyclic voltammetry measurements have been done in a 6 M KOH at room temperature and further HER activities have been correlated with the varying Cu concentration in NiCu alloy catalysts.