Article
Energy & Fuels
Tianqi Gao, Baokai Xia, Kang Yang, Di Li, Tianye Shao, Sheng Chen, Qiang Li, Jingjing Duan
Summary: Currently, CO2 electrolysis technologies are being extensively studied in laboratories, with limited pilot-scale applications. In this study, a comprehensive workflow of the CO2 electrolysis system is established, and a techno-economic analysis (TEA) is conducted on four main products: formic acid, carbon monoxide, ethanol, and ethylene. The levelized cost of formic acid and carbon monoxide is competitive with conventional methods, but ethanol and ethylene are not yet economically viable. To improve the feasibility of multicarbon products, higher faradaic efficiency, lower cell voltage, and reduced electricity prices are needed. Additionally, the production process of formic acid is optimized using heat-pump-assisted pressure swing distillation (HPA-PSD) to reduce energy consumption. Furthermore, the production of formic acid from CO2 electrolysis coupled with concentrating solar power can achieve a carbon-negative effect based on carbon footprint accounting.
Article
Engineering, Chemical
Emanuele Moioli, Tilman Schildhauer
Summary: This study investigates the feasibility of producing methanol using biogas and explores small-scale localized production methods. The techno-economic-environmental performance of different synthesis methods is analyzed, and it is found that both steam reforming and direct CO2 hydrogenation processes are profitable with cheap electricity and high methanol value, with a slight advantage for steam reforming. The direct CO2 hydrogenation route can be improved with cost-effective equipment, showing potential for application in energy storage. Additionally, the use of biomethane in centralized methanol production performs similarly to localized methanol synthesis due to the high cost of raw materials.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Multidisciplinary Sciences
Xin Chen, Junxiang Chen, Huayu Chen, Qiqi Zhang, Jiaxuan Li, Jiwei Cui, Yanhui Sun, Defa Wang, Jinhua Ye, Lequan Liu
Summary: In this study, a strategy of promoting water dissociation on Bi2O2CO3 is reported to achieve high solar to formate energy conversion in CO2 electroreduction. The authors identify CO3* as the key surface species for formate formation through electron spin resonance measurements and in situ Raman spectroscopy combined with isotopic labelling. The efficiency of solar to formate energy conversion reaches as high as 13.3% when combined with a photovoltaic device.
NATURE COMMUNICATIONS
(2023)
Article
Green & Sustainable Science & Technology
Mohammed Nazeer Khan, Mark Lacroix, Coos Wessels, Miet Van Dael
Summary: Wastewater contains a significant amount of cellulose from toilet paper, which can be recovered and converted into useful products. A techno-economic assessment of the entire value chain suggests that under specific conditions, this value chain has potential and could be a promising business case for sludge treatment facilities.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Environmental Sciences
Nurziya R. Akmukhanova, Yoong Kit Leong, Sandugash N. Seiilbek, Aigerim Konysbay, Bolatkhan K. Zayadan, Assemgul K. Sadvakasova, Fariza K. Sarsekeyeva, Meruyert O. Bauenova, Kenzhegul Bolatkhan, Hesham F. Alharby, Jo-Shu Chang, Suleyman I. Allakhverdiev
Summary: Cyanobacteria have the potential to synthesize metabolites that exhibit antibacterial, antiviral, antifungal, insecticidal, herbicidal, and other properties. Their use as alternative environmentally-friendly pesticides is discussed.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Chemical
Menglei Mao, Feixue Sun, Ruqing Chong, Rui Gao, Qiyong Liao, Zihui Meng, Xinlong Fan, Wenfang Liu
Summary: This study investigated the effects of several cation-containing intercalators on the structure of Ti3C2Tx and its enzymatic CO2 conversion performance. It was found that Ti3C2Tx intercalated with NH4OH/KCl had larger layer spacing and specific surface area, and showed better enhancing effect.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Green & Sustainable Science & Technology
Andy N. Antzaras, Theodoros Papalas, Eleni Heracleous, Charalampos Kouris
Summary: This study evaluates the feasibility of integrating three alternative CO2 capture units in a cement industry in Greece, including carbonate looping and commercial amine scrubbing. The economic analysis shows that carbonate looping with limestone has lower environmental impact and similar capture cost, making it a more promising option.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Thai Ngan Do, Chanhee You, Jiyong Kim
Summary: In this study, a framework for CO2 capture and utilization for energy products (CCU4E) was developed and examined for its techno-economic and environmental performance. A total of 72 CO2-to-fuel pathways were analyzed to understand the trade-off between economic output and environmental impact, with a focus on the role of H2 in mitigating CO2eq emissions and economic potential. The study also highlighted the significance of green hydrogen price as a key factor in future CCU4E for reducing CO2eq emissions at a more stable and lower cost.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Editorial Material
Chemistry, Multidisciplinary
Yanfei Xu, Xiangyang Li, Mingyue Ding
Summary: Evaluating the techno-economic feasibility of coal-to-olefin technology based on Fischer-Tropsch synthesis can reduce the dependence of olefin production on limited petroleum resources.
Article
Chemistry, Physical
Christianah Aarinola Akinnawo, Lebohang Mosia, Oyekunle Azeez Alimi, Charles O. Oseghale, Dele Peter Fapojuwo, Ndzondelelo Bingwa, Reinout Meijboom
Summary: Mesoporous ZrO2 exhibits good stability and selectivity in glycerol acetalization with aldehydes, with a selectivity of over 50% to 1,3-dioxane. This performance is attributed to its high surface area and Lewis acidity. The green application of meso-ZrO2 catalysts for sustainable acetalization of glycerol may be easily extended to other bio-based industrial processes.
CATALYSIS COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Ha Bich Phan, Cam Manh Luong, Long Phan Nguyen, Bich Thi Bui, Hai Truong Nguyen, Bay Mai, Tam V-T Mai, Lam K. Huynh, Phuong Hoang Tran
Summary: This study developed a novel homogeneous catalyst in an eco-sustainable reaction medium of ionic liquids to convert carbohydrates to valuable compounds, with high yields under simple conditions, and the catalyst can be effectively recovered and reused.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Ao Yu, Guoming Ma, Jintian Jiang, Yajing Hu, Mingming Su, Wangtao Long, Shixin Gao, Hsien-Yi Hsu, Ping Peng, Fang-Fang Li
Summary: Inspired by spongy bone structures, three-dimensional sponge-like carbons with meso-microporous structures are synthesized through one-step electro-reduction of CO2. These materials exhibit excellent capacitive performance, cycling stability, and energy density, making them promising for supercapacitor electrodes and flexible devices. This work provides a controllable synthetic route for porous carbons and a promising approach for effective carbon reduction and green energy production.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Green & Sustainable Science & Technology
Haeun Shin, Kentaro U. Hansen, Feng Jiao
Summary: This work provides a comprehensive techno-economic assessment of four major products of low-temperature CO2 electrolysis and prioritizes technological development with systematic guidelines to facilitate market deployment.
NATURE SUSTAINABILITY
(2021)
Article
Thermodynamics
Usama Ahmed
Summary: The study aims to develop alternative models for dual production of methanol and H-2 using Aspen Plus, with a focus on controlling greenhouse gas emissions. Comparison between the base case and alternative case shows that the alternative model offers higher process efficiency, lower energy requirements, reduced fuel production costs, lower CO2 emissions, and better project feasibility.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Energy & Fuels
Ziqiang Sun, Hongchao Yang, Zhiwei Ma, Ziyan Zhang, Liangri Han, Zhixuan Wang, Yejun Zhang, Xingyu Wang, Qiangbin Wang
Summary: In this study, silver-gold-selenide quantum dots (AgAuSe QDs) with well-treated defect states were used to construct environment-friendly QD solar cells. The energy-level alignment of the device was modulated by introducing a layer of Au nanoparticles (NPs), which significantly improved the device performance.
Article
Chemistry, Multidisciplinary
Xuemei Liu, Chaonan Cui, Shuoshuo Wei, Jinyu Han, Xinli Zhu, Qingfeng Ge, Hua Wang
Summary: This study presents a new strategy for designing efficient photocatalysts that can convert CO2 into hydrocarbons by utilizing synergistic catalytic sites. The findings provide a solution for the selective photocatalytic reduction of CO2 to CH4.
Article
Chemistry, Multidisciplinary
Chengxian Hu, Dan Wang, Lu Wang, Ying Fu, Zhengyin Du
Summary: A novel one-pot, three-component reaction conducted under electrochemical conditions was studied. The reaction involved 2-aminothiophenols, aldehydes, and malononitrile, using TBABF4 as an electrolyte and CuI as a catalyst. The proposed reaction mechanism suggested that CuI served as an electron relay. This method offers simplified operation, high atom economy, and mild reaction conditions.
Article
Chemistry, Multidisciplinary
Zhi Yang, Yu Chen, Linxi Wan, Yuxiao Li, Dan Chen, Jianlin Tao, Pei Tang, Fen-Er Chen
Summary: A highly enantioselective method for the complete hydrogenation of pyrimidinium salts using Ir/(S,S)-f-Binaphane complex as the catalyst was developed. This method provides easy access to fully saturated chiral hexahydropyrimidines, which are prevalent in many bioactive molecules. The reactions exhibit high yields and enantioselectivities under mild reaction conditions without additives. Successful application of this methodology in a continuous flow fashion further extends its practical utility.
Article
Chemistry, Multidisciplinary
Tina Jeoh, Jennifer Danger Nill, Wujun Zhao, Sankar Raju Narayanasamy, Liang Chen, Hoi-Ying N. Holman
Summary: In this study, the enzymatic hydrolysis of cellulose was investigated using real-time infrared spectromicroscopy. The spatial heterogeneity of cellulose was found to impact the hydrolysis kinetics. Hydration affected cellulose ordering, and Cel7A preferentially removed less extensively hydrogen bonded cellulose.
Article
Chemistry, Multidisciplinary
Tiphaine Richard, Walid Abdallah, Xavier Trivelli, Mathieu Sauthier, Clement Dumont
Summary: An effective method of grafting functionalities onto lignin based on glycerol carbonate has been developed using an efficient nickel-catalysed telomerisation reaction. This method allows lignin to have new reactive functions and reduces the glass transition temperatures of modified lignins, thereby expanding the application range of lignin-based resins.
Article
Chemistry, Multidisciplinary
Jing Qi, Xiyan Wang, Gan Wang, Srinivas Reddy Dubbaka, Patrick ONeill, Hwee Ting Ang, Jie Wu
Summary: This study presents a green and environmentally friendly approach for the synthesis of imides using electrocatalytic oxidation with H2O as the oxygen source. The method eliminates the need for toxic or expensive oxidants and achieves high yields under mild reaction conditions. It shows broad substrate compatibility and potential for industrial applications.
Article
Chemistry, Multidisciplinary
Babasaheb Sopan Gore, Lin-Wei Pan, Jun-Hao Lin, Yi-Chi Luo, Jeh-Jeng Wang
Summary: Here, we report a visible light-promoted intramolecular radical cascade reaction for the construction of fluorenol and naphthalene-fused cyclopropyl carbaldehyde derivatives. This method offers mild reaction conditions, a broad substrate scope, excellent step efficiency, and scalability, without the need for external chemical oxidants. The novelty of this protocol was demonstrated by synthesizing chrysene analogs and performing late-stage functionalizations.
Article
Chemistry, Multidisciplinary
Juho Antti Sirvio, Idamaria Romakkaniemi, Juha Ahola, Svitlana Filonenko, Juha P. Heiskanen, Ari Ammala
Summary: This article discusses the method of using supramolecular interaction between an aromatic hydrogen bond donor and lignin to achieve rapid delignification of softwood at low temperatures.
Article
Chemistry, Multidisciplinary
Yunyan Meng, Chunxiang Pan, Na Liu, Hongjiang Li, Zixiu Liu, Yao Deng, Zixiang Wei, Jianbin Xu, Baomin Fan
Summary: A novel visible light-driven synthesis method for 2,3-diamines has been developed, which has mild conditions, avoids the use of metal reagents, and can synthesize diamines and diols in one pot.
Article
Chemistry, Multidisciplinary
Mingqing Huang, Haiyang Huang, Mengyao You, Xinxin Zhang, Longgen Sun, Chao Chen, Zhichao Mei, Ruchun Yang, Qiang Xiao
Summary: A direct air-oxidized strategy for the synthesis of benzo[b]phosphole oxides was developed in this study. Arylphosphine oxides were transformed into phosphinoyl radicals, which were further combined with various alkynes to achieve the desired products. DFT calculations revealed the mechanism of phosphinoyl radical formation.
Article
Chemistry, Multidisciplinary
Anwei Wang, Jiayin Huang, Chunsheng Zhao, Yu Fan, Junfeng Qian, Qun Chen, Mingyang He, Weiyou Zhou
Summary: This study demonstrates an innovative strategy for the aerobic oxidation of C(sp(3))-H bonds using gamma-valerolactone. By optimizing the reaction conditions and utilizing specific catalysts, efficient oxidation of C(sp(3))-H bonds is achieved with good chemoselectivity in certain cases.
Article
Chemistry, Multidisciplinary
Shun Li, Likai Tong, Zhijian Peng, Bo Zhang, Xiuli Fu
Summary: Sulfide compounds show promise as electrocatalysts for water splitting, but their performance is limited by factors such as limited active sites and hindered substance transport. This study successfully prepared a high-entropy sulfide (ZnCoMnFeAlMg)(9)S-8, which reduced grain size and increased specific surface area, enabling the realization of a dual-functional catalyst with multiple catalytic sites. High entropy also modulated the electronic properties of sulfides, reducing the potential energy barrier for hydrolysis. This research introduces a new approach for functionalizing high entropy nanomaterials and improves the performance of water splitting catalysts.