Engineering of MoS2 Quantum Dots/PANI Aerogel for High Performance Supercapaciator

The lower conductivity of MoS2 sheet presents a huge barrier for the exploitation of its supercapaciator electrode application. To alleviate this difficulty, MoS2 quantum dots (QDs) having high surface area is prepared. The synthesized MoS2 QDs are embedded into polyaniline (PANI)-N,N-dibenzoyl-L-cystine (D) aerogel matrix for application in high performance supercapaciator. Here, conductive PANI hydrogel are prepared by in situ polymerization of aniline where D acts as a gelator, dopant, and cross-linker. The D-PANI aerogel shows conductivity of 0.02 S cm(-1), specific capacitance of 278 F g(-1) at a current density of 1 A g(-1). The optimal MoS2 QDs in D-PANI aeogel improves specific capacitance up to 796.2 F g(-1) at 1 A g(-1) showing long cycling stability (86% after 5000 cycles).