Controlled Synthesis of Mesoporous π‐Conjugated Polymer Nanoarchitectures as Anodes for Lithium‐Ion Batteries

Abstract

Conjugated polymers possess better electron conductivity due to large𝝅-electron conjugated configuration endowing them significant scientific and technological interest. However, the obvious deficiency of active-site underutilization impairs their electrochemical performance. Therefore, designing and engineering 𝝅-conjugated polymers with rich redox functional groups and mesoporous architectures could offer new opportunities for them in these emerging applications and further expand their application scopes. Herein, a series of 1,3,5-tris(4-aminophenyl) benzene (TAPB)-based 𝝅-conjugated mesoporous polymers (𝝅-CMPs) are constructed by one-pot emulsion-induced interface assembly strategy. Furthermore, co-induced in situ polymerization on 2D interfaces by emulsion and micelles is explored, which delivers sandwiched 2D mesoporous 𝝅-CMPs-coated graphene oxides (GO@mPTAPB). Benefiting from specific redox-active functional groups, excellent electron conductivity and a 2D mesoporous conjugated framework, GO@mPTAPB exhibits high capability of accommodating Li + anions (up to 382 mAh g −1 at 0.2 A g −1 ) and outstanding electrochemical stability (87.6% capacity retention after 1000 cycles). The ex situ Raman and impedance spectra are further applied to reveal the high reversibility of GO@mPTAPB. This work will greatly promote the development of advanced 𝝅-CMPs-based organic anodes toward energy storage devices.

Emulsion‐Directed Synthesis of Poly‐Porphyrin Nanoparticles as Heterogeneous Photocatalysts for PET‐RAFT Polymerization

“…Finally, the Pluronic F127 template was washed out and left the poly‐porphyrin nanoparticles. [ 51–53 ]…”

“…Finally, the Pluronic F127 template was washed out and left the poly-porphyrin nanoparticles. [51][52][53] Furthermore, by altering the toluene content in the emulsion system, we can adjust the pore size in the nanoparticles. When a small amount of toluene (50 μL) was added, the poly-porphyrin nanospheres with small pores were obtained (termed as PTAPP-Zn1), of which the particle size was around 250 nm and the pore size was 6 nm assessed by scanning electron microscope (SEM) analysis (Figure 1a,b).…”

Interfacial self‐assembly growth of mesoporous polydopamine nanofilms for formaldehyde sensing

“…[8][9][10] Although the preparation of mesoporous materials (silica, 11 metals 12 and their oxides, 13 etc.) has been well developed so far, 14 the development of mesoporous polymers with precisely tunable pore structure and morphology is still in the infancy [15][16][17] due to the complex polymerization process, the volatility of monomers, and lack of suitable synthesis systems and templates.…”

Synthesis of extended π‐conjugated hypercrosslinked polymers via a Friedel–Crafts reaction and an intramolecular Scholl coupling reaction

“…Among them, COFs, CMPs, and a few PAFs have the long‐range π‐electron conjugated structure. Such a structure typically endows materials with excellent ion migration property and electron conductivity, 8,9 offering possibilities especially for applications in (opto)electronics, 1 photocatalysis, 10 electrocatalysis, 11 photoelectric catalysis, 12 and energy storage and conversion 13 . However, HCPs have a limitaiton to be employed in the aforementioned applications due to lack of long‐range conjugated structures, even though they have been widely used in numerous fields 5 …”