氫氣是一種非常理的想乾淨能源,可將氫氣氧化成為水來提供能量,其反應物與產物對環境皆無任何的傷害。在此研究中,以導電碳布為基材,於低溫、常壓環境下進行熱裂解反應,以裂解前驅物(四硫鉬酸銨)來製備硫化鉬(MoSx),作為電催化產氫之觸媒。

在裂解反應中,電流密度最大化的觸媒合成條件為;反應溫度150 oC下、濃度1 wt%四硫鉬酸銨、反應時間10小時；於0.5M硫酸水溶液為電解液中,硫化鉬其電催化效果可在 下,達到電流密度60.4 mAcm-2,且產氫反應之Tafel slope為53.7 mV/dec。在長時間穩定度測試下,於 經六小時反應後,電流僅衰退14.66%。合成之產氫觸媒會以XRD、XPS、SEM分析其結構與組成。

以前述條件進行熱裂解法製備硫化鉬,再以光化學有機金屬沉積法(PMOD)合成鎳/氧化鎳的金屬薄膜,加以提升硫化鉬產氫的催化效果。在電化學的測試下,可降低起始電壓約0.03 V,且在 處電流密度自58.8 mAcm-2增加至67.9 mAcm-2,增加約15.5%。

Hydrogen is an ideal clean energy because it provides power by oxidation into the clean product, water. In this research, molybdenum sulfide (MoSx) was ynthesized at low temperatures within atmospheric pressure by thermo-decomposing from the ammonium tetrathiomolybdate (ATM) which was dip-coated carbon cloth.

The optimal condition for electrocatalytic water splitting catalysts preparation was at 150 oC thermal treatment for 10 hours under ambient pressure. Catalysts were characterized by SEM, XRD and XPS. The Tafel slope for HER is about 53.7 mV/dec. The current density at is 60.4 mAcm-2 in 0.5M H2SO4 electrolyte.

At last, we also try to enhance the MoSx performers by covering the nickel and nickel oxide thin film by using the photochemical metal organic deposition (PMOD) method. The MoSx covered with nickel/nickel oxide this film declined the onset potential from -0.23 V to -0.2V and the current density at is increase by 15.5% to 67.9 mAcm-2 in 0.5M H2SO4 electrolyte.

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