Li, et al (2025) Insights into the interactions between cellulose and hemicellulose during pyrolysisPyrolysis is a thermochemical process that converts waste biomass into bio-char, bio-oil, and pyro-gas. It offers significant advantages in waste valorization, turning low-value materials into economically valuable resources. Its versatility allows for tailored products based on operational conditions, presenting itself as a cost-effective and efficient More for optimizing the properties of biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More as a potential energy vector. Industrial Crops and Products. https://doi.org/10.1016/j.indcrop.2024.120126

Biochar, a carbon-rich material derived from biomassBiomass is a complex biological organic or non-organic solid product derived from living or recently living organism and available naturally. Various types of wastes such as animal manure, waste paper, sludge and many industrial wastes are also treated as biomass because like natural biomass these More pyrolysis, shows potential as a sustainable energy vector. A recent study investigated the co-pyrolysis of cellulose and hemicellulose—key biomass components—to enhance biochar properties. By optimizing pyrolysis conditionsThe conditions under which pyrolysis takes place, such as temperature, heating rate, and residence time, can significantly affect the properties of the biochar produced.   More such as temperature, residence timeResidence time refers to the duration that the biomass is heated during the pyrolysis process. The residence time can influence the properties of the biochar produced.   More, and feedstockFeedstock refers to the raw organic material used to produce biochar. This can include a wide range of materials, such as wood chips, agricultural residues, and animal manure. More ratio, researchers aimed to maximize biochar yield and its energy characteristics.

The study revealed that interactions between cellulose and hemicellulose significantly affect biochar outcomes. Under optimal conditions (567.74°C, 19.52 minutes, and a 50% cellulose ratio), the biochar yield increased by 41.37%. Additionally, the co-pyrolysis process improved critical biochar properties such as fixed carbon content, elemental carbon content, and higher heating value (HHV), while reducing volatile content and undesirable [H]/[C] and [O]/[C] ratios. These changes enhance the thermal stability and energy efficiency of biochar.

Analytical techniques, including Raman spectroscopy and X-ray photoelectron spectroscopy (XPS), provided insights into structural modifications. The process increased graphitization levels and functional group diversity, contributing to biochar’s improved performance as an energy material.

These findings highlight the value of co-pyrolysis in tailoring biochar properties for specific applications. The optimized biochar holds promise for use in clean energy technologies, offering a practical approach to utilizing biomass more effectively.

This study underscores the importance of integrating chemical and structural analyses in biochar research, paving the way for its broader adoption in energy and environmental applications.