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<p>Activated carbon, renowned for its high surface area and porosity, is widely used in adsorption, catalysis, and energy storage. In this study, activated porous carbon (APC) is synthesized from bagasse, a sugarcane industry byproduct, and the effect of pyrolysis temperature (600–900°C) on its structural, morphological, and electrochemical properties is evaluated for supercapacitor applications. X-ray diffraction confirms its amorphous nature, while BET analysis shows an increase in surface area from 452.5&#xa0;m<sup>2</sup>/g at 600°C to 649.3 m<sup>2</sup>/g at 800°C, with pore sizes of 5.08–6.03&#xa0;nm. Scanning electron microscopy (SEM) analysis reveals a morphological transition from agglomerated particles at lower temperatures to well-defined structures at higher temperatures. Raman spectroscopy indicates variations in graphitization and disorder, while cyclic voltammetry demonstrates enhanced electrochemical performance. APC synthesized at 800°C exhibits ideal capacitive behaviour, with high specific capacitance of 201.87&#xa0;F/g. These findings highlight the impact of pyrolysis temperature on APC properties, making it a promising electrode material for high-performance supercapacitors, while its tunable porosity and high surface area render it highly effective for wastewater treatment, CO<sub>2</sub> capture, and gas separation applications.</p> Graphical Abstract <p></p>

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Influence of Preparation Temperature on the Structural, Morphological and Electrochemical Performance of Activated Porous Carbon

  • 期刊论文

  • 发表日期：

    2025年6月7日

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  • P. Baraneedharan,
  • M. Silambarasan,
  • D. Shankari,
  • P. Mounika,
  • Sowmmya Venkatesh,
  • Neha Sharma,
  • Parasuraman Swaminathan

摘要

Activated carbon, renowned for its high surface area and porosity, is widely used in adsorption, catalysis, and energy storage. In this study, activated porous carbon (APC) is synthesized from bagasse, a sugarcane industry byproduct, and the effect of pyrolysis temperature (600–900°C) on its structural, morphological, and electrochemical properties is evaluated for supercapacitor applications. X-ray diffraction confirms its amorphous nature, while BET analysis shows an increase in surface area from 452.5 m2/g at 600°C to 649.3 m2/g at 800°C, with pore sizes of 5.08–6.03 nm. Scanning electron microscopy (SEM) analysis reveals a morphological transition from agglomerated particles at lower temperatures to well-defined structures at higher temperatures. Raman spectroscopy indicates variations in graphitization and disorder, while cyclic voltammetry demonstrates enhanced electrochemical performance. APC synthesized at 800°C exhibits ideal capacitive behaviour, with high specific capacitance of 201.87 F/g. These findings highlight the impact of pyrolysis temperature on APC properties, making it a promising electrode material for high-performance supercapacitors, while its tunable porosity and high surface area render it highly effective for wastewater treatment, CO2 capture, and gas separation applications.

Graphical Abstract