Article
Engineering, Environmental
Su-Mei Zheng, Zhi-Hua Yuan, Dionysios D. Dionysiou, Lu-Bin Zhong, Fei Zhao, Jia-Cheng E. Yang, Yu -Ming Zheng
Summary: We report the synthesis of a nitrogen-doped hierarchical porous carbon (NPC) derived from waste silkworm cocoons, which shows promising potential as a CDI electrode for desalination applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Miroslaw Kwiatkowski, Elzbieta Broniek
Summary: This study focused on the preparation of activated carbons from various biomass materials and analyzed the influence of activation conditions on their porous structure and adsorption properties. The results showed that activated carbon derived from ebony wood at a specific mass ratio exhibited optimal adsorption capacity and surface uniformity, highlighting the effectiveness of the LBET method for analyzing porous structure.
Article
Energy & Fuels
Zenghua Xu, Ximing Zhang, Xufeng Yang, Youfang Yu, Hongjian Lin, Kuichuan Sheng
Summary: Corncob-derived Fe/N co-doped porous carbon spheres were successfully synthesized and optimized for superior ion transfer kinetics and rate performances, demonstrating high capacitance and supreme cyclability in supercapacitor applications. These properties were attributed to the unique packing architecture, developed micro-mesoporous structure, and multiple redox possibilities of the carbon spheres, showcasing potential for high-tech applications.
Article
Engineering, Environmental
K. K. Kishibayev, J. Serafin, R. R. Tokpayev, T. N. Khavaza, A. A. Atchabarova, D. A. Abduakhytova, Z. T. Ibraimov, J. Srenscek-Nazzal
Summary: Highly microporous inexpensive activated carbons were prepared using a physical activated method based on biomass and shungite minerals, and investigated for CO2 adsorption. Birch activated carbon showed the highest CO2 capture capacity and good selectivity for CO2-N2 separation, with easy regeneration after multiple cycles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Xiangxia Jing, Lei Wang, Konggang Qu, Rui Li, Wenjun Kang, Haibo Li, Shenglin Xiong
Summary: Developing monolithic electrodes with high capacitor performance using chemically activated commercial melamine sponges and KOH is a challenge in the energy storage field. The study demonstrates that adjusting the KOH/melamine sponge mass ratio can regulate the graphitization degree, heteroatom content, and pore size distribution of the monolithic N-/O-doped carbon sponge electrodes. The optimized electrode shows promising specific capacitances and retention rates, and the charge storage mechanism in NOCSs is systematically studied to separate different capacitance contributions. Additionally, the NOCSs show good capacitance performances in all-solid-state supercapacitors, providing high energy density and power output for driving LED devices.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Chemical
Li-an Xing, Fu Yang, Xiu Zhong, Yang Liu, Hao Lu, Zengjing Guo, Guojun Lv, Jinbei Yang, Aihua Yuan, Jianming Pan
Summary: The capture of CO2 by absorbent has the potential to reduce CO2 emissions. The functionalization of N surfaces and the development of the surface area have been recognized as important factors in CO2 adsorption performance. However, the role of ultra-micropores in size matching of CO2 and absorbent pore structure has not been extensively studied. This study presents a simple one-step chemical activation method to create ultra-microporous carbon absorbent with tunable pore structure. The optimal sample showed high CO2 adsorption at normal pressure and low adsorption heat, demonstrating good reversibility and reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Lulu Wang, Xuejian Li, Xing Huang, Sheng Han, Jibo Jiang
Summary: Utilizing biomass waste to synthesize hierarchical interconnected porous carbon for supercapacitors with excellent electrochemical performance offers a high specific capacitance, superior rate capability, and cycle life, providing an efficient and economical strategy for energy storage and renewable delivery devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Environmental Sciences
Muniandy Gayathiri, Thiruchelvi Pulingam, K. T. Lee, Kumar Sudesh
Summary: The use of activated carbon is increasing in various industrial applications, and its production from biomass waste requires further research on key factors and mechanisms. Optimizing key parameters and understanding the characteristics and mechanisms of activated carbon are important for its effective production and application.
Article
Chemistry, Multidisciplinary
P. Hepsiba, S. Rajkumar, E. Elanthamilan, Sea-Fue Wang, J. Princy Merlin
Summary: This study proposes a low-cost method for producing activated carbon from cashewnut shell biowaste, which has promising potential for application as electrode materials in supercapacitors.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Energy & Fuels
Rich David Ortiz-Olivares, Diego Ramon Lobato-Peralta, D. M. Arias, Jude A. Okolie, Ana Karina Cuentas-Gallegos, P. J. Sebastian, Adriana Reyes Mayer, Patrick U. Okoye
Summary: In this study, corncob was used as a raw material to produce activated carbon with high specific capacitance and energy storage performance by adjusting the impregnation ratio and activation temperature.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Jaros law Serafin, Mohammed Ouzzine, Congcong Xing, Hajar El Ouahabi, Adrianna Kaminska, Joanna Srenscek-Nazzal
Summary: In this study, Amazonian andiroba shell was used to produce a porous activated carbon for CO2 adsorption and a cheap supercapacitor material. The results showed that the surface area of the activated carbons increased significantly with longer activation time, and the AC AND-5 h sample exhibited good microporosity and high CO2 adsorption capacity.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Physical
Sandra Rodriguez-Sanchez, Begona Ruiz, David Martinez-Blanco, Maria Sanchez-Arenillas, Maria A. Diez, Jose Francisco Marco, Pedro Gorria, Enrique Fuente
Summary: The study successfully achieved control over the chemical, morphological, textural, and magnetic properties of magnetic activated carbons (MACs) derived from industrial food waste. By using a sustainable and optimized one-step activation route based on the circular economy model, the researchers obtained interesting and outstanding results. Acid washing of the MACs led to better magnetic response at high temperatures, with higher BET surface area and micropore volume.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Mokhtar Mahmoud, Jozef Kraxner, Hana Kankova, Miroslava Hujova, Si Chen, Dusan Galusek, Enrico Bernardo
Summary: In this study, fiber glass waste was alkali activated in aqueous solutions with different concentrations of sodium/potassium hydroxide, leading to the formation of porous glass microspheres in a methane-oxygen flame. The use of highly concentrated activating alkali solutions favored pore formation, with the highest effectiveness observed with a 9 M KOH aqueous solution.
Article
Energy & Fuels
Sivagaami Sundari Gunasekaran, Sushmee Badhulika
Summary: Porous carbon material HFPC was successfully synthesized from hemp fiber via a single-step low temperature carbonization followed by CO2 physical activation, showing high specific surface area and specific capacitance. The supercapacitor device based on HFPC demonstrated excellent specific energy, high power performance, and good cycle life in a PVA-KOH hydrogel electrolyte, offering a promising sustainable electrode material for high energy solid state supercapacitor applications.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Materials Science, Textiles
Shuhua Wang, Zelin Wen, Yindong Gao
Summary: By investigating the preparation methods and activation agents for producing self-bonded bulk porous activated carbon from waste cotton fibers, it was found that the adsorption performance and physical properties of the activated carbon vary under different addition amounts.
JOURNAL OF THE TEXTILE INSTITUTE
(2022)
Article
Agricultural Engineering
G. Grasa, I. Martinez, R. Murillo
Summary: Gasification kinetics of six chars from residual origin were studied under relatively low temperature, low CO2, and high H2O partial pressures. The Random Pore Model (RPM) showed the best fit to experimental results, but the selection of the reaction model depended on the ash composition, specifically the presence of alkali and alkaline earth metals. Chars with ash content higher than 30% wt. were modeled with the RPM model, while chars with the highest K/Si ratio required modified versions of the RPM to accurately predict reaction rates. Textural properties played a key role in determining reaction parameters, such as the pre-exponential factor and activation energy, for chars with similar ash content and composition.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
V. Godvin Sharmila, Surya Prakash Shanmugavel, J. Rajesh Banu
Summary: Proper treatment and disposal of biomass waste is crucial to prevent environmental deposition and its negative impacts. Biofuel has emerged as a potential alternative to fossil fuels, reducing carbon emissions and meeting global energy demands. This review examines different biomass waste conversion techniques and explores the production of biofuels with zero carbon emissions. Research on anaerobic treatment, metabolic engineering, and artificial intelligence has been conducted to enhance biofuel production efficiency.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
Selvakumar Periyasamy, Adane Asefa Adego, P. Senthil Kumar, G. G. Desta, T. Zelalem, V. Karthik, J. Beula Isabel, Mani Jayakumar, Venkatesa Prabhu Sundramurthy, Gayathri Rangasamy
Summary: Valorizing agricultural waste into valuable products is crucial for environmental protection and bioeconomy advancement. Preprocessing of agricultural waste is a critical step to convert free carbohydrate molecules for final conversion, and factors such as biomass nature, feed loading, pH, temperature, and time influence the process. This review provides comprehensive information on agricultural waste availability, preprocessing techniques, and factors influencing performance.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Aqueel Ahmad, Ashok Kumar Yadav, Achhaibar Singh, Dinesh Kumar Singh
Summary: The study focuses on predicting and optimizing the yield of biogas production in an anaerobic digester using co-digestion. Experimental data was used to develop a machine learning-based prognostic model, and the Response Surface Methodology (RSM) was employed to optimize the parameters. The results demonstrate that RSM coupled with machine learning is an effective technique for modeling, predicting, and optimizing biogas production yield.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Yijing Zhong, Wenxiang Zhai, Xinli Wei
Summary: This paper studies the thermal stability and decomposition of cork materials with and without silica aerogel filler. The results show that the decomposition is inhibited and the pyrolysis is significantly reduced with the addition of silica aerogel. This finding suggests that silica aerogel-infused cork may be a promising raw material for biofuel production with reduced environmental pollution.
BIOMASS & BIOENERGY
(2024)