A simple, inexpensive in situ oxidative polymerization of aniline and pyrrole using ammonium persulfate (APS) as oxidant and hydrochloric acid (HCl) as dopant has been used to synthesize a hybrid (PAni-Co-PPy)@TiO₂ nanocomposite with titanium oxide (TiO₂) nanoparticles (NPs) wrapped into (PAni-Co-PPy) copolymer. The synthesized nanocomposite has been shown with higher oxygen reduction reactions (ORR) as an excellent cathode material for higher performance in the complex of (PAni-Co-PPy)⁺/TiO₂(O⁻). The charge transport phenomenon between TiO₂ and (PAni-Co-PPy)⁺ were found adequate with subsequent delocalization of electron/s at PAni and PPy. The self-doping nature of TiO₂ (O⁻) played a vital role in oxygen adsorption and desorption process. With higher electrical conductivity and surface area, these were tested in microbial fuel cells (MFCs) for ORRs at cathode. This yielded a relatively higher current and power density output as compared to PAni@TiO₂, PPy@TiO₂, and commercially available Pt/C cathode catalysts in MFC system. In overall, the prepared (PAni-Co-PPy)@TiO₂ nano-hybrid cathode delivered ~2.03 fold higher power density as compared to Pt/C catalyst, i.e. ~987.36 ± 49 mW/m² against ~481.02 ± 24 mW/m². The properties of electro-catalysts established an improved synergetic effect between TiO₂ NPs and (PAni-Co-PPy). In effect, the enhanced surface area and electrochemical properties of the prepared (PAni-Co-PPy)@TiO₂ nano-hybrid system is depicted here as an effective cathode catalyst in MFCs for improved performance.

使用过硫酸铵（APS）作为氧化剂和盐酸（HCl）作为掺杂剂的苯胺和吡咯的简单，便宜的原位氧化聚合反应已被用于合成具有氧化钛的杂化（PAni-Co-PPy）@TiO ₂纳米复合材料包裹在（PAni-Co-PPy）共聚物中的TiO ₂）纳米粒子（NPs）。将合成的纳米复合材料已显示出具有较高的氧还原反应（ORR），为优异的正极材料获得更高的性能在复杂（PANI的Co-PPY）的⁺ /的TiO ₂（O ^- ）。TiO ₂与（PAni-Co-PPy）⁺之间的电荷传输现象被发现足够用于随后在PAni和PPy处电子的离域。TiO 2的自掺杂性质₂（O ^- ）起到氧的吸附和解吸过程中的重要作用。具有较高的电导率和表面积，已在微生物燃料电池（MFCs）中测试了阴极上的ORR。与PAni @ TiO ₂，PPy @ TiO ₂和MFC系统中可商购的Pt / C阴极催化剂相比，这产生了相对较高的电流和功率密度输出。总体而言，与Pt / C催化剂相比，制备的（PAni-Co-PPy）@TiO ₂纳米杂化阴极的功率密度高约2.03倍，即约987.36±49 mW / m ^2，相对于〜481.02 ±24 mW / ²米。电催化剂的性质在TiO ₂ NP和（PAni-Co-PPy）之间建立了改善的协同作用。实际上，在此将所制备的（PAni-Co-PPy）@TiO ₂纳米杂化体系的表面积和电化学性能提高表示为MFC中提高性能的有效阴极催化剂。