層狀雙氫氧化物於水解產氫之應用技術

Water Splitting for Hydrogen Production Based on Layered Double Hydroxides

近年來，極端氣候的影響日益嚴重，因此如何生產氫氣作為燃料被視為未來淨零碳排的重點研究項目之一。層狀雙氫氧化物由於其獨特的層狀結構、高比表面積和獨特的電子分佈，導致了良好的電催化性能並廣泛用於電解水產氫應用。由於其不但具有廣泛金屬陽離子的選擇靈活性以及可調控能力，獨特的插層結構也提供了其高離子交換和層狀剝離能力。因此，通過優化結構、組成、插層離子和製備方法，使得研究人員可以大幅度調控其電催化性能。鑒於層狀雙氫氧化物獨特的物化優勢，此篇技術報導中，總結了層狀雙氫氧化物及其衍生物作為水分解電催化劑的相關應用，以及提出多種材料設計策略以利於相關研究的進展，並討論了層狀雙氫氧化物面臨的重大挑戰和前景。

In recent years, due to the increasing threat of extreme climate change, the production of hydrogen as a fuel has been considered as the key research priorities for zero-carbon emissions. Layered double hydroxides (LDHs), due to their unique layered structure, high specific surface area, and distinctive electron distribution, demonstrate excellent electrocatalytic performance and are widely used in the water splitting for hydrogen production. The wide-ranged metal composition variety allows LDHs to have flexible selection of metal cations, unique intercalated ion exchangeability, and layered exfoliation capabilities. Thus, by adjusting the morphology, composition, interlayer ions, and synthesis process, researchers are able to significantly tune LDHs’electrocatalytic performance. Herein, this technical report summarizes their applications as advanced electrocatalysts for water splitting, proposes a multitude of material design strategies to facilitate the progression of related research. Finally, the significant challenges and prospects of layered double hydroxides for water splitting are also discussed.