Molecular-Level Structure Regulation via Sequential Pre-Crosslinking and Friedel-Crafts Hypercrosslinking: Fabrication of Bimetallic Doped Porous Carbon Electrocatalysts
- 1Institute of Petrochemical Technology, Jilin University of Chemical Technology, NO. 45 Chengde Street, Jilin 132022, China
- 2School of Chemical and Pharmaceutical Engineering, Jilin University of Chemical Technology, NO. 45 Chengde Street, Jilin 132022, China
Abstract
Owing to high surface inertness and insufficient active sites, traditional carbons cannot anchor and disperse metal species evenly, restricting catalytic activity. Via polymer precursor design, the components, functional groups and pore architecture can be tailored molecularly and preserved upon carbonization, thus regulating carbon microstructure, surface properties and active centers efficiently. This work focuses on the synthesis and structural tuning of polystyrene-based precursors using a three-step procedure of pre-crosslinking, Friedel-Crafts hypercrosslinking, and activation. The materials possess abundant mesopores ranging from 7 to 30 nm, which serve as an ideal platform for the efficient anchoring of metal ions and mass transfer during the subsequent carbonization and functionalization processes. Based on the strong adsorption and exchange ability of sulfonic acid groups, transition metal ions such as Co, Ni and Fe were uniformly doped on the surface of nanoparticles and carbonized at 300–600 °C in an air atmosphere to realize the conversion of the polymer skeleton to a carbon matrix and the in situ formation of metal species into oxide nanoparticles. At the application performance level, the prepared Co/Ni bimetallic-carbon-doped material exhibits excellent electrocatalytic activity in the alkaline oxygen evolution reaction. The overpotential is only 0.3478 V at a current density of 10 mA cm−2. After 50 cycles of cyclic voltammetry, the voltage fluctuation is only 0.026 V.
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BibTeX
@article{du2026molecularlevel,
title = {{Molecular-Level Structure Regulation via Sequential Pre-Crosslinking and Friedel-Crafts Hypercrosslinking: Fabrication of Bimetallic Doped Porous Carbon Electrocatalysts}},
author = {Yang Du and Shuo Gao and Jinyuan Zhang},
journal = {Molecules (Basel, Switzerland)},
year = {2026},
month = oct,
doi = {10.3390/molecules31193510},
url = {https://europepmc.org/article/PMC/PMC13666392},
note = {CC BY},
}
RIS
TY - JOUR
TI - Molecular-Level Structure Regulation via Sequential Pre-Crosslinking and Friedel-Crafts Hypercrosslinking: Fabrication of Bimetallic Doped Porous Carbon Electrocatalysts
AU - Yang Du
AU - Shuo Gao
AU - Jinyuan Zhang
PY - 2026
DA - 2026/10/01
JO - Molecules (Basel, Switzerland)
DO - 10.3390/molecules31193510
UR - https://europepmc.org/article/PMC/PMC13666392
AB - Owing to high surface inertness and insufficient active sites, traditional carbons cannot anchor and disperse metal species evenly, restricting catalytic activity. Via polymer precursor design, the components, functional groups and pore architecture can be tailored molecularly and preserved upon carbonization, thus regulating carbon microstructure, surface properties and active centers efficiently. This work focuses on the synthesis and structural tuning of polystyrene-based precursors using a three-step procedure of pre-crosslinking, Friedel-Crafts hypercrosslinking, and activation. The materials possess abundant mesopores ranging from 7 to 30 nm, which serve as an ideal platform for the efficient anchoring of metal ions and mass transfer during the subsequent carbonization and functionalization processes. Based on the strong adsorption and exchange ability of sulfonic acid groups, transition metal ions such as Co, Ni and Fe were uniformly doped on the surface of nanoparticles and carbonized at 300–600 °C in an air atmosphere to realize the conversion of the polymer skeleton to a carbon matrix and the in situ formation of metal species into oxide nanoparticles. At the application performance level, the prepared Co/Ni bimetallic-carbon-doped material exhibits excellent electrocatalytic activity in the alkaline oxygen evolution reaction. The overpotential is only 0.3478 V at a current density of 10 mA cm−2. After 50 cycles of cyclic voltammetry, the voltage fluctuation is only 0.026 V.
SN - 1420-3049
ER -