關於電催化水分解，一直以來受到陽極析氧反應的限制，已知RuO2及IrO2作為催化劑展現高活性及穩定性，然而由於其稀少性和高成本，因此尋找替代催化劑變得至關重要。近年許多研究中，過渡金屬元素亦展現OER活性，有望作為替代催化劑。利用多元陽離子與陰離子摻雜提升催化活性為一新的策略，金屬離子間調節的電子結構提供更多活性位點，增強了氧化能力並降低活化能。而陰離子則調和反應物的吸附與產物的解吸。多陰離子催化劑調和中間產物的適當吸附和O2解吸並加速了 OER 催化。
本研究中，利用高熵材料特殊的協同效應，以CrMnFeCoNi為基本，分別加入Ti、V、Cu、Zn、Mo合成六、七元過渡金屬元素，使用微波輔助水熱法在泡沫鎳上成長高熵甘油酸，並透過探討過渡金屬元素之間的協同效應，提升OER活性與穩定性。為進一步提升催化性能，本研究亦利用多元陰離子摻入概念，進一步將高熵甘油酸進行磷化反應，合成含碳高熵磷化物，探討其多元金屬及非金屬之間的調節，及在OER過程中材料表面之轉變機制，製造高效能之水分解電催化劑。

The most commercial catalyst for oxygen evolution reaction (OER) is noble metal-based catalyst such as RuO2 or IrO2. Because of their scarcity and high-cost limit, developing low cost and earth-abundant element to replace is necessary. In this study, first we have grown transition metals-based high-entropy glycerates on nickel foam using microwave-assisted hydrothermal method. The catalyst of 5MT(CrMnFeCoNiTiZn) exhibits low overpotential of 251mV at a current density of 50mAcm-2 with a small Tafel slope of 49mV dec-1 for OER in alkaline solution and also performs outstanding stability. In order to enhance the catalytic performance, further phosphorization is required to synthesize carbon-incorporated high-entropy phosphides and explore the composition modification through various analysis to realize the surface OER mechanism of C-incorporated high entropy phosphides. 5MTP(CrMnFeCoNiTiP) shows outstanding performance with 226mV at current density of 50mcm-2. It is a new strategy to produce high-entropy electrocatalyst by one-step growth.

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