Review
Chemistry, Multidisciplinary
Suman Pradhan, Sourav Roy, Basudev Sahoo, Indranil Chatterjee
Summary: CO2 is being efficiently converted into value-added products through catalytic techniques, with visible-light photocatalysis playing a significant role in this process. The combination of CO2 with light energy has shown promising results, particularly in the past three years.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Environmental Sciences
Eng Kein New, Shen Khang Tnah, Khai Shing Voon, Khai Jie Yong, Alessandra Procentese, Katrina Pui Yee Shak, Wennie Subramonian, Chin Kui Cheng, Ta Yeong Wu
Summary: The high dependence on crude oil has led to a need for alternative sustainable resources. Traditional solvents often come with drawbacks such as high cost, environmental concerns, and complex separation systems. Therefore, the scientific community has been actively researching more cost-effective and environmentally friendly 'green' solvents. However, these solvents also have disadvantages, such as complicated product recovery, recyclability, and high operational costs. This review evaluates the potential advantages, challenges, and drawbacks of various green solvents in transforming lignocellulosic biomass into high-value products, and discusses research opportunities for future developments and potential upscale implementation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Agricultural Engineering
Naroon Waramit, Jutamas Romkaew, Wikanya Prathumyot, Sopana Jantawong
Summary: The objective of this research was to determine the effect of physiographic type and harvesting age on the biomass yield, chemical composition, and CO2 adsorption of aboveground mangrove biomass. The study found that riverine mangrove forests had higher dry aboveground woody biomass, calorific value, and CO2 adsorption compared to basin mangrove forests. Extending harvesting age from 5 to 15 years increased the woody biomass yield, quality, and CO2 adsorption of mangrove forests.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Inorganic & Nuclear
Sethuraman Muthuramalingam, Marappan Velusamy, Ramasamy Mayilmurugan
Summary: The synthesis and characterization of nickel(II) complexes with different ligands as catalysts for the activation and conversion of atmospheric CO2 and epoxides into cyclic carbonates were carried out. Among them, Catalyst 4 showed the highest efficiency in forming cyclic carbonates with a high yield, representing the most efficient nickel(II)-based catalyst known to date.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Applied
Changcheng Wei, Wenna Zhang, Kuo Yang, Xiu Bai, Shutao Xu, Jinzhe Li, Zhongmin Liu
Summary: The challenging utilization of CO2 as feedstock for basic chemicals has been addressed by coupling conversion of CO2 with light alkanes over HZSM-5 zeolite, leading to higher aromatic selectivity. The coupling reaction achieved a CO2 conversion of 17.5%, n-butane conversion of 100%, and aromatic selectivity of 80% at a CO2 to n-butane ratio of 0.475. Key intermediates were identified, and the catalytic mechanism was explored, providing guidance for the direct utilization of CO2 to produce value-added chemicals with the transformation of light alkanes.
CHINESE JOURNAL OF CATALYSIS
(2023)
Review
Chemistry, Multidisciplinary
Seonho Lee, Yiu Fai Tsang, Kun-Yi Andrew Lin, Eilhann E. Kwon, Jechan Lee
Summary: This review provides an overview on the use of biogas either as pyrolysis medium or as renewable chemical feedstock.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Inorganic & Nuclear
Xueqin Tian, Xuefu Hu, Wenjing Zhao, Pengyan Wu, Yan Wu, Xin Xie, Fangmin Huang, Jinwen Cheng, Jian Wang
Summary: Novel nanotubular metal-organic frameworks (NTMOFs) with excellent chemical resistance and durable catalytic performance were constructed. They exhibited high catalytic activity and a higher turnover frequency in the CO2 cycloaddition reaction of epoxides. The materials also have the potential for CO2 fixation from power plant flue gas.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Jing Huo, Zhanyun Wang, Christopher Oberschelp, Gonzalo Guillen-Gosalbez, Stefanie Hellweg
Summary: This study explores the feasibility of a global chemical industry relying on CO2 as its carbon source in 2050. The global annual CO2 demand as chemical feedstock is projected to be 2.2-3.1 Gt, well within the possible supply range from various sectors. Feedstock availability is not a constraint, except for a few regions like the Middle East. The environmental benefits and trade-offs of carbon capture, utilization, and storage (CCUS) are assessed, and it is concluded that capturing CO2 from biomass-fired power plants and pulp mills in Europe would have the least environmental and health impacts.
Review
Chemistry, Physical
Seda Sarp, Santiago Gonzalez Hernandez, Chi Chen, Stafford W. Sheehan
Summary: Production of renewable alcohols from air, water, and sunlight offers a promising avenue for utilizing captured carbon dioxide and storing renewable energy. Among alcohols, renewable methanol stands out due to its potential for direct CO2 utilization. Comparison of different technologies, such as CO2 electrolysis and CO2 hydrogenation, along with recommendations for further development, can drive research and implementation in the field of renewable fuels.
Article
Chemistry, Multidisciplinary
Xin Huang, Krill Alferov, Tingting Zhao, Jingyao Yin, Shuanjin Wang, Dongmei Han, Sheng Huang, Zhiheng Huang, Min Xiao, Yuezhong Meng
Summary: Oligocarbonate diols (PPCDL) with a high carbonate content were successfully synthesized through direct copolymerization of propylene oxide (PO) and carbon dioxide (CO2) using metal-free Lewis acid-base catalysts and 1,4-butanediol (BDO) as a proton exchange agent (PEA). The molar ratio of PO to BDO, temperature, pressure, and reaction time were investigated to control the molecular weight of the oligocarbonate diols. The structures of the diols were characterized by various analytical techniques, and their rheological properties were studied. Furthermore, polycarbonate urethanes were prepared using the synthesized PPCDLs and showed promising thermal and mechanical properties for polyurethane applications.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Engineering, Environmental
Shu Hikima, Martin Keller, Hiroki Matsuo, Yoshio Matsuzaki, Junichiro Otomo
Summary: By developing highly efficient carriers for hydrogen production through methane cracking and carbon dioxide activation in a chemical looping system, the Fe-doped BZY carrier (BZFY40) exhibits high activity and durability for carbon deposition and removal cycles. Surface observation, kinetic analysis, and reactions with carbon dioxide demonstrate the effectiveness of the BZFY40 carrier in maintaining stable cycle reactions and providing an efficient system design for carbon dioxide-free hydrogen generation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Frances N. Singer, Arron C. Deacy, Thomas M. McGuire, Charlotte K. Williams, Antoine Buchard
Summary: A catalyzed chemical recycling method for the widely investigated polymer poly(cyclohexene carbonate) is reported, which can convert it into useful monomers. The method exhibits high selectivity and activity, and achieves depolymerization through chain-end catalysis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Xiaodong Ma, Xinning Song, Libing Zhang, Limin Wu, Jiaqi Feng, Shunhan Jia, Xingxing Tan, Liang Xu, Xiaofu Sun, Buxing Han
Summary: This study designed a Pb-doped Cu2O catalyst for efficient electrochemical CO2 reduction reaction (CO2RR), which could stabilize the Cu-0-Cu+ structure and enhance CO adsorption and C-C coupling, leading to high selectivity for C-2 products.
Article
Chemistry, Multidisciplinary
Kun Huang, Qi Li, Xiang-Yu Zhang, Da-Bin Qin, Bin Zhao
Summary: This study successfully constructed a copper-cluster-based MOF and found that it exhibited good catalytic performance and recyclability in CO2 conversion and alkyne cycloaddition reactions.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Yan Yu, Bang Gao, Ye Liu, Xiao-Bing Lu
Summary: This study reports a highly efficient chemical recycling method to depolymerize CO2-based alicyclic polycarbonates into epoxide monomers. The method is solvent-free and exhibits excellent reactivity and high epoxide monomer selectivity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)