燃料電池陰極結合電-芬頓系統，可提供陰極催化特性之優化機能暨自保持機制。二氧化鈦(TiO₂)具良好光催化特性，惟其須以紫外光照射方可激發；二硫化鉬(MoS₂)具窄能隙與Mo 邊緣活性點，結合TiO₂ 形成異質結可增強電子-電洞分離與傳導。本研究藉由控制電沉積時間參數將MoS₂ 被覆於TiO₂/SS316L 電極表面，冀能優化陰極系統催化效能。實驗包含：(1) 掃描式電子顯微鏡(SEM)；(2) 紫外光-可見分光譜(UV-vis)；(3) 線性掃描伏安法(LSV)；(4) 動電位極化法(Potentiodynamic)；(5) 陰極電-芬頓場域分析(EF)。研究結果顯示，沉積時間25 分鐘所製備MoS₂/TiO₂/SS316L 電極，於吸收光譜中觀察到明顯紅移現象，電化學響應電流相較TiO₂/SS316L 提升2.21 倍，陰極系統反應速率則為TiO₂/SS316L 電極之1.45倍。證實MoS₂ 與TiO₂ 可建構良好效益，使陰極運行效率獲得顯著優化。

The cathode of the fuel cell combined with the Electro-Fenton system has the optimized function and self-sustaining mechanism of cathode catalytic properties. Titanium dioxide (TiO₂) exhibits favorable photocatalytic characteristics, although it primarily responds to UV light irradiation. On the other hand, MoS₂ displays a limited energy gap and active sites near the Mo edge. The combination of MoS₂ with TiO₂ to create a heterojunction can improve the separation of electron-hole, as well as promote conduction. This study manipulates the electrodeposition time parameters to coat the surface of the TiO₂/SS316L electrode with MoS₂, aiming to improve the catalytic performance of the cathode system. The studies comprise the following techniques: (1) Scanning electron microscope (SEM); (2) Ultraviolet-visible spectroscopy (UV-vis); (3) Linear scanning voltammetry (LSV); (4) Potentiodynamic polarization (Potentiodynamic); (5) Cathode Electro-Fenton Field Analysis (EF). The results shown that the MoS₂/TiO₂/SS316L electrode with an electrodeposition time of 25 min has an obvious red shift in the absorption spectrum. Additionally, the response current of the electrode is 3.21 times greater than TiO₂/SS316L, and the reaction rate of the cathode system is 1.74 times higher than TiO₂/SS316L. It is confirmed that MoS₂ and TiO₂ can construct a good benefit, and the cathode operating efficiency can be significantly optimized.