由於近年來石化燃料的耗盡，全球科學家開始找尋零碳的可再生能源來代替非再生能源。在眾多研究方向中，主要以電、光催化水的裂解為最具展望性及經濟效益的方法，因為所產生的氫氣燃燒後伴隨而生的副產物為無污染的水，因此被視為一乾淨、零碳的再生能源。本研究希望可以提高電裂解水的效率，設計並合成出了一個穩定性高且具經濟效益的雙亞硝基鐵錯合物催化劑 [(μ-N,N-BADI)Fe2(NO)4] (1)，同時也能進一步將complex 1電沉積在石墨電極上，形成一個效率良好且穩定的固態材料。將complex 1分別在三種電解液下電沉積於石墨板上時，這些電沉積石墨板同時展現了不錯的HER、OER催化活性，甚至也能進行水電裂解的全反應。為了進一步了解complex 1電沉積在石墨碳板表面的沉積結構以及組成，使用了一系列表面化學分析儀器鑑定電沉積後的石墨板表面，希望能夠藉此得知，不同表面沉積結構與組成對於催化活性的影響。

Since the awareness of the issues about the global climatic change and the demand on carbon-free energy stimulates the intense research for the utilization of renewable energy, it suggests that electro- and photo-catalytic water splitting is the most promising and cost-effective approach to produce clean and carbon-free fuel. In order to investigate the electrocatalytic H2 and O2 evolution from water using economical, efficient and robust catalyst, dinitrosyl iron complex (DNIC) [{Fe(NO)2}10]2 [(μ-N,N-BADI)Fe2(NO)4] (1) was synthesized and characterized by FT-IR spectroscopy, cyclic voltammogram (CV) and single-crystal X-ray diffraction. In comparison with the homogeneous complex 1 showing compromised HER/OER activity, it is noticed that heterogeneous DNIC-deposit electrodes (AFe, CFeO, CFeP and CFeS) prepared from the facile electrodeposition on the graphite electrode in three different electrolytes (1 M NaOH, 1 M phosphate buffer and 1 M Na2SO4), exhibit long-term stability and good electrocatalytic activity with low overpotential and low Tafel slope. In addition, the electrode-pair setting, CFeCoP-CFeCoP, display superior electrocatalytic actvivity for overall water splitting with overpotential close to that of IrO2-Pt electrode-pair setting. With regard to the enhanced HER and OER activity, SEM, EDX and XPS measurements were conducted to probe the morphology and composition of theses DNIC-deposit electrodes.

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