Emerging Advancements in Polypyrrole MXene Hybrid Nanoarchitectonics for Capacitive Energy Storage Applications

Applications of MXene-Containing Polypyrrole Nanocomposites in Electrochemical Energy Storage and Conversion

“…When combined with other characterization methods, UV–vis spectroscopy is an invaluable tool for evaluating the desirable optical characteristics of nanofillers in a polymer matrix. By carefully selecting the kind and content of nanofiller in a polymer matrix, additional fine-tuning of the required optical qualities may be achieved based on the examination of the polymer nanocomposite’s absorption characteristics. , …”

“…By carefully selecting the kind and content of nanofiller in a polymer matrix, additional fine-tuning of the required optical qualities may be achieved based on the examination of the polymer nanocomposite's absorption characteristics. 36,75 Wu and co-workers 63 employed UV characterization to understand the interaction of organ-like Ti 3 C 2 with PPy nanoparticles (Figure 6(d)). The following three points summarize the synergistic impact of organ-like Ti 3 C 2 and PPy nanoparticles: First, the use of a synergistic effect between distinct electrode materials and diverse energy storage techniques to achieve high specific capacitance and outstanding cycle stability by combining PPy with pseudocapacitance behavior and Ti 3 C 2 with an electric double-layer capacitor mechanism.…”

“…The MXene/PPy-modified electrode revealed two pairs of redox peaks, namely, the oxidation peaks at 0.21 and 0.48 V as well as the reduction peaks at 0.17 and 0.31 V, which correspond to the electrocatalytic processes of MXene and PPy, respectively, as compared to the pure PPy-modified electrode. 76 Meanwhile, the performance of the MXene/PPy composite and pure PPy film electrodes was examined at various current densities by Jian et al 36 (Figure 7(d)). The 3D nanostructure of the MXene/PPy electrode was reported to be responsible for its improved rate capacity for capacitance retention of 50% when the current density is increased by 40 times (from 0.5 Ag to 8g).…”

“…Owing to its high electrical conductivity, the polymer is widely used for lightweight, flexible, and cheap energy storage applications, specifically for supercapacitors and batteries. 28 For instance, Zhu et al 35 and Wu et al 36 hybridize PPy chains with MXene to produce a high-performing freestanding and flexible ultracapacitor. Similarly, Dan et al 34 established a facile approach via in situ polymerizations to develop the PPy nanosphere/Ti 3 C 2 -MXene (PPy/Ti 3 C 2 ) nanocomposite as an electrode in supercapacitor electrodes, whereas Jian et al 32 used one-step coelectrodeposition to prepare a nanocomposite of MXene and PPy.…”

“…This gap incites this current paper. Moreover, while the capacitive energy storage use of the PPy/MXene nanocomposite was reviewed by Ezika et al, 36 this work intends to examine the most recent breakthroughs in the synthesis, characterization, and properties of the MXene/PPy nanocomposite as a further step in this field, with a focus on the electrochemical energy storage and conversion applications. Therefore, the first section of this paper gives a narrative description of how PPy interacts with different MXenes to make desirable high-performance nanocomposites.…”