Synergistic Effect of Low-Concentration ZnCl2-Activated Bio-Carbon from Red Suren Leaves with Hierarchical Pore Structure and Self-Doping for High-Performance Supercapacitor Applications
Erman Taer1,*, Novi Yanti1, Asmarwati1, Apriwandi1, Abrar Ismardi2, Indra Wahyudhin Fathona2, Memoria Rosi2, Bidayatul Armynah3, Dahlang Tahir3, Ninis Hadi Haryanti4, Suryajaya4, Isnasyauqiah5, Ida Usman6, Julnaidi7, Rika Taslim8,*
Journal of Renewable Materials, Vol.14, No.8, 2026, DOI:10.32604/jrm.2026.02026-0022
- 26 August 2026
(This article belongs to the Special Issue: Renewable Nanostructured Porous Materials: Synthesis, Processing, and Applications)
Abstract The promotion of bio-carbon for developing superior electrodes has become a trending topic in realising the practical application of supercapacitor devices. This study aimed to prepare porous carbon (PC) with a taproot fiber-like nanostructure that was decorated with self-doped oxygen. The waste of red suren leaves (RSL) was further treated using a direct heating method with the catalyst effect of ZnCl2 (0.3, 0.5, and 0.7 M) in an N2/CO2 environment at 850°C, being examined. The results showed that RSL@PC-0.5 exhibited the best amorphous carbon structure (FWHM = 0.105° and 0.182°). The specific surface area (SSA =… More >
Graphic Abstract