Article
Chemistry, Physical
Saudagar Dongare, Oguz Kagan Coskun, Eda Cagli, Kevin Y. C. Lee, Guodong Rao, R. David Britt, Louise A. Berben, Burcu Gurkan
Summary: Electrochemical conversion of CO2 to CO with high selectivity and stable current density is achieved using Ag electrodes in acetonitrile-based electrolytes containing [EMIM]-[2-CNpyr]. Addition of [EMIM]-[2-CNpyr] shifts the onset potential of CO2 reduction in acetonitrile positively by 240 mV, attributed to the pre-activation of CO2 through the formation of carboxylate and carbamate intermediates. Surface-enhanced Raman spectroscopy confirms the catalytic role of [EMIM]-[2-CNpyr] in the CO2 reduction reaction.
Article
Chemistry, Physical
Najrul Hussain, Mohammad Ali Abdelkareem, Hussain Alawadhi, Shamima Begum, Khaled Elsaid, A. G. Olabi
Summary: The synthesis and characterizations of the tricomponent CuO-ZnO-MoS2 composite material is reported for the first time in this work. The composite possessed outstanding catalytic performance in CO2 reduction to alcohol with maximum faradaic efficiency of 24.6% for methanol and 11.1% for ethanol.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Wenwen Bao, Senhe Huang, Diana Tranca, Boxu Feng, Feng Qiu, Fermin Rodriguez-Hernandez, Changchun Ke, Sheng Han, Xiaodong Zhuang
Summary: The study investigates the electrochemical reduction of CO2 using metal porphyrins as molecular catalysts, focusing on their symmetric architecture and aggregation behavior. The results show that the electron-donating effect of 2,6-dimethylbenzene can enhance CO2 reduction performance. The asymmetric Co-II porphyrin exhibits the best catalytic activity, with a low onset potential and high faradaic efficiencies. The study also provides insights into molecular design for efficient electrochemical CO2 reduction.
Article
Engineering, Environmental
Xiaowei An, Shasha Li, Ziyuan Yang, Xuli Ma, Xiaogang Hao, Abuliti Abudula, Guoqing Guan
Summary: In this study, a one-step hydrothermal reaction method was used to grow a Fluorine (F)-doped In(OH)3 electrocatalyst on a conductive carbon paper (F-In(OH)3/CP), which was then utilized for the electrochemical reduction of CO2 to formate. The F doping-induced lattice shrinkage and generation of positive valence states of indium resulted in a superior formate faradaic efficiency (FE) of 92.5% and a formate partial current density (jformate) of 5.5 mA cm-2 at -1.2 V versus reversible hydrogen electrode (RHE). FTacV study revealed that F doping reduced the overpotential required for CO2 electroreduction. DFT calculations showed that F doping enhanced the conductivity of In(OH)3 and improved the selectivity of formate by reducing the overpotential for formate formation and inhibiting the hydrogen evolution reaction (HER).
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Zhengrong Zhang, Wenhui Liu, Wei Zhang, Minmin Liu, Shengjuan Huo
Summary: Through anchoring CuO/Bi(OH)3 multi-component catalyst on carbon nanotubes, the selectivity of ECO2RR products was successfully tuned from CO to formate. Bimetallic CuBi nanoparticles demonstrated excellent electrocatalytic activity, achieving controllable product selectivity by adjusting the Cu: Bi atomic fraction.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Chemical
Chunxiao Zhang, Shenglin Yan, Jing Lin, Qing Hu, Juhua Zhong, Bo Zhang, Zhenmin Cheng
Summary: By introducing a zinc myristate hydrophobic layer on the surface of zinc foam electrode, high Faradaic efficiency (FE) for CO production was achieved at high potentials, reaching 91.8% at -1.9 V vs. SCE. The high roughness of the hydrophobic layer increased the active surface area and CO2 mass transfer performance, demonstrating the effectiveness of adding a hydrophobic layer on the catalyst surface to enhance the electrochemical CO2 reduction performance.
Article
Chemistry, Physical
Jing Ding, Peiru Wang, Yuting He, Linyan Cheng, Xue Li, Cheng Fang, Hongping Li, Hui Wan, Guofeng Guan
Summary: By synthesizing porous sulfonyl binuclear carbonate poly(ionic liquid)s (SC-PILs), the efficient catalytic reaction of diluted CO2 with epoxides and methanol can be achieved, providing a better choice for high-value utilization of diluted CO2.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Energy & Fuels
Kyu Min Lee, Jun Ho Jang, Mani Balamurugan, Jeong Eun Kim, Young In Jo, Ki Tae Nam
Summary: Electrochemical reduction of CO2 to produce fuel precursors and additives has traditionally been limited in product variety and overall efficiency. A recent study successfully utilized redox-neutral reactions to convert CO2 into dimethyl carbonate in methanol with high Faradaic efficiency, and expanded to diethyl carbonate. This approach shows promise in broadening the scope of products and improving efficiency through innovative design strategies.
Article
Chemistry, Multidisciplinary
Anum Zahid, Afzal Shah, Iltaf Shah
Summary: The oxide derived copper (ODCu) electrode showed high selectivity and enhanced current density for the electrochemical reduction of CO2, especially for the production of C2+ products. The catalyst achieved a high Faradaic efficiency of up to 58% at a lower overpotential.
Article
Chemistry, Multidisciplinary
Fei Chen, Wensheng Wei, Yunsheng Gao, Yuxin Wang, Zizhen Yan, Zhanguo Zhang, Haiming Yu, Guangwen Xu, Lei Shi
Summary: Ionic liquid [Emim]IM with high thermal stability and strong basicity was synthesized and used as a catalyst for the direct synthesis of dimethyl carbonate (DMC). The [Emim]IM catalyst exhibited good stability and catalytic activity.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Analytical
Atul A. Pawar, Harshad A. Bandal, Anand Rajkamal, Hern Kim
Summary: Cu2O@PANI composite material has been synthesized with superior catalytic activity and selectivity for the conversion of CO2 to methanol. The synergism between Cu2O and PANI enables the material to exhibit excellent properties, such as reducing multiple species, enhancing electrical conductivity, and lowering resistance. Electrochemical and theoretical analysis confirm these properties and reveal the mechanism by which the Cu2O@PANI matrix promotes product formation.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xin He, Yangyan Gao, Yunlei Shi, Xiaowen Zhang, Zhiwu Liang, Riguang Zhang, Xingfei Song, Qinghua Lai, Hertanto Adidharma, Armistead G. Russell, Eric G. Eddings, Weiyang Fei, Fangqin Cheng, Shik Chi Edman Tsang, Jianji Wang, Maohong Fan
Summary: Ionic liquids serve as catalysts to accelerate both the sorption and desorption of carbon dioxide. By adding a small amount of the uniquely designed ionic liquid catalyst to monoethanolamine-based carbon dioxide capture, the desorption rate of carbon dioxide can be significantly increased, reducing energy consumption and avoiding secondary pollution.
Article
Chemistry, Physical
Saudagar Dongare, Neetu Singh, Haripada Bhunia
Summary: By optimizing the loading of ZnO, the CuZnx/NGN catalyst can be tuned for efficient electrochemical CO2 reduction to produce multi-carbon products. The CuZn20/NGN catalyst with 20 wt% ZnO loading shows the highest FE for ethanol and N-propanol production at -0.8 V, with long-term stability.
APPLIED SURFACE SCIENCE
(2021)
Review
Engineering, Chemical
Zihui Liu, Juan Qian, Guangyao Zhang, Bin Zhang, Yan He
Summary: This paper provides a comprehensive summary of catalysts, electrolytes, and electrolyzers involved in the electrocatalytic reduction of CO2 to CO. It focuses on the intrinsic mechanism and conversion selection properties of this reaction. The paper categorizes catalysts into carbon-based and non-carbon-based types, highlighting the unique behaviors and recent advancements of copper-based and single-atom catalysts. It also discusses suitable electrolytes and electrolyzer structures for industrial-scale CO manufacturing. Furthermore, the paper reviews the future direction of CO2 electrolysis for real-world CO production, emphasizing catalyst optimization, technological breakthroughs, electrolyzer design, membrane innovations, and energy utilization.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Multidisciplinary
Alexander P. Muroyama, Lorenz Gubler
Summary: The use of atmospheric CO2 as a chemical feedstock shows promise in reducing carbon emissions in the chemical and transportation sectors. This study introduces a new method that utilizes an electrochemical cell to regenerate carbonate solution, simultaneously capturing CO2 and enriching H2. Preliminary results demonstrate successful CO2 transport with high efficiency.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Santosh Govind Khokarale, Jian He, Leonhard Schill, Song Yang, Anders Riisager, Shunmugavel Saravanamurugan
Article
Chemistry, Multidisciplinary
Santosh Govind Khokarale, Jyri-Pekka Mikkola
Article
Chemistry, Multidisciplinary
Thai Q. Bui, Santosh G. Khokarale, Shashi K. Shukla, Jyri-Pekka Mikkola
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2018)
Article
Chemistry, Multidisciplinary
Thai Q. Bui, Lakhya Jyoti Konwar, Ajaikumar Samikannu, Dariush Nikjoo, Jyri-Pekka Mikkola
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Chemistry, Multidisciplinary
Ming Zhou, Santosh Govind Khokarale, Marco Balsamo, Jyri-Pekka Mikkola, Jonas Hedlund
JOURNAL OF CO2 UTILIZATION
(2020)
Article
Chemistry, Multidisciplinary
Magnus Sjoblom, Io Antonopoulou, Ivan Gil Jimenez, Ayanne de Oliveira Maciel, Santosh Govind Khokarale, Jyri-Pekka Mikkola, Ulrika Rova, Paul Christakopoulos
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Energy & Fuels
Chunyan Ma, Nan Wang, Yifeng Chen, Santosh Govind Khokarale, Thai Q. Bui, Fredrik Weiland, Torbjorn A. Lestander, Magnus Rudolfsson, Jyri-Pekka Mikkola, Xiaoyan Ji
Article
Chemistry, Multidisciplinary
Piotr Jablonski, Dariush Nikjoo, Johan Warna, Knut Irgum, Jyri-Pekka Mikkola, Santosh Govind Khokarale
Summary: This report introduces a sustainable, metal-free, and single solvent-based reaction approach for the selective depolymerization of biopolymers to industrially valuable chemicals. The study investigates the influence of different reaction parameters on the conversion yield and efficiency.
Article
Green & Sustainable Science & Technology
Santosh Khokarale, Ganesh Shelke, Jyri-Pekka Mikkola
Summary: In this study, dimethyl carbonate and glycidol were successfully synthesized from glycerol-derived feedstocks using a metal-free reaction approach and mild reaction conditions. The use of DBU as a base catalyst facilitated the conversion of 3-chloro-1,2-propandiol and further assisted in the synthesis of 3-chloro-1,2-propylenecarbonate and glycidol. The separation of reaction components was achieved through a solvent extraction technique, resulting in high recovery rates for both dimethyl carbonate and glycidol.
CLEAN TECHNOLOGIES
(2021)
Article
Chemistry, Multidisciplinary
Santosh Govind Khokarale, Jyri-Pekka Mikkola
Article
Chemistry, Physical
Chandrakant Mukesh, Santosh Govind Khokarale, Pasi Virtanen, Jyri-Pekka Mikkola
SUSTAINABLE ENERGY & FUELS
(2019)
Article
Chemistry, Multidisciplinary
Santosh Govind Khokarale, Jyri-Pekka Mikkola