Article
Chemistry, Multidisciplinary
Zheng Wang, Da Li, Shangqing Chen, Jiayin Hu, Yanxi Gong, Yafei Guo, Tianlong Deng
Summary: The green basic IL [DBUH][BO2] was synthesized for the first time and proved to be an efficient catalyst for the cycloaddition of CO2 and epoxides, with high product yields and easy recovery and reuse. The synergy between the basic anion and the cation with N-H contributed to the catalytic effects, and the IL also showed effectiveness in the reaction of CO2 and 2-aminobenzonitriles into quinazoline-2,4(1H,3H)-diones.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Hongtai Chen, Liming Fan, Tuoping Hu, Xiutang Zhang
Summary: The exquisite combination of Ba2+ and Zn2+ with H6TDP under solvothermal self-assembly conditions generates a highly stable 2D-based organic framework NUC-27, which displays a unique Z-shaped heterometallic cluster structure for efficient catalysis on the chemical transformation of epoxides and CO2.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Jing Chen, Giulia Chiarioni, Gert-Jan W. Euverink, Paolo P. Pescarmona
Summary: This study investigated the use of inexpensive dyes as organocatalysts for the cycloaddition of CO2 to styrene oxide to yield styrene carbonate. It was found that the nature of the organic cation and halide had a significant impact on the activity, with iodide being the most effective. Adding a green, inexpensive hydrogen bond donor as a co-catalyst further improved the yield. A tailored modification of the catalyst resulted in a major increase in yield at lower temperatures. The catalyst could be easily recovered and reused, and nanofiltration was an effective technique for removing the catalyst from the product.
Article
Chemistry, Multidisciplinary
Yunrui Zhang, Dong-Hui Yang, Shanlin Qiao, Bao-Hang Han
Summary: The study developed a highly efficient catalyst for CO2 cycloaddition reaction by covalently modifying ionic liquids to covalent organic frameworks and utilizing the electrostatic interaction between polyoxometalates (POMs) and ionic liquids. The catalyst showed high catalytic activity under mild conditions and retained its performance after multiple uses, attributed to the synergistic effect of ionic liquids, POMs, and COFs.
Article
Chemistry, Inorganic & Nuclear
Weize Wang, Weixuan Chen, Wenke Yuan, Hai-Qun Xu, Bo Liu
Summary: The cycloaddition reaction of carbon dioxide is a cost-effective and environmentally friendly method for carbon neutrality. We have developed a unique zinc-organic framework with high adsorption capacity for CO2 and demonstrated its excellent performance in the cycloaddition reaction of epoxides with CO2.
INORGANIC CHEMISTRY
(2022)
Article
Polymer Science
Shuqing Li, Zhen Zhan, Xiaoyan Wang, Bien Tan
Summary: CO2 cycloaddition conversion is a promising strategy for converting CO2 into high-value-added products. This study reports a method for synthesizing HCPSSs by controlling the monomer feeding rate, which improves the yield of CO2 cycloaddition conversion.
Article
Energy & Fuels
Fereshteh Norouzi, Amir Abdolmaleki
Summary: A series of pyridinium-based acidic-ionic liquids (PyAILs) were synthesized as dual-functional ILs and used as catalysts for the conversion of CO2 into carbonates. Various factors affecting the reaction were investigated, and a conceivable reaction mechanism was proposed.
Article
Chemistry, Multidisciplinary
Zheng Wang, Yajun Wang, Qianjie Xie, Zhiying Fan, Yehua Shen
Summary: The study developed a simple and inexpensive catalyst system using aliphatic carboxylic acids and quaternary ammonium halides as catalysts to efficiently catalyze the coupling of CO2 and epoxides. The research systematically investigated the effects of acid acidity and steric hindrance on the catalysis and deduced the reaction mechanism through exploring the interaction between representative systems.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Ana P. C. Ribeiro, Peter Goodrich, Luisa M. D. R. S. Martins
Summary: The production of cyclic carbonates from CO2 cycloaddition to epoxides using the C-scorpionate iron(II) complex as a catalyst in a tailor-made ionic liquid medium achieves excellent yields. A favorable synergistic catalytic effect was observed in this system, with the catalyst showing stability during multiple cycles. This study presents the first use of C-scorpionate complexes in ionic liquids for the production of cyclic carbonates.
Article
Chemistry, Applied
Mohammad Taghi Nazeri, Siamak Javanbakht, Mohadese Nabi, Ahmad Shaabani
Summary: In this study, pectin was used as a green support to construct an efficient heterogeneous catalytic system based on metal phthalocyanines. The catalytic activity of the copper phthalocyanine-conjugated pectin in the CO2 fixation reaction was investigated. Pectin successfully improved the catalytic properties of the Cu-PcTA.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Multidisciplinary
Ying Shi, Jian Zhao, Hang Xu, Sheng-Li Hou, Bin Zhao
Summary: This study presents a new porous MOF catalyst that can effectively catalyze the cycloaddition of CO2 and aziridines without the need for additional co-catalysts. The MOF also exhibits high adsorption capacity and maintains catalytic activity after multiple cycles.
SCIENCE CHINA-CHEMISTRY
(2021)
Article
Materials Science, Coatings & Films
Kang-qing Zuo, Zhi-yuan Gong, Gui-yong Xiao, Sheng-yun Huang, Chun-miao Du, Bing Liu, Dong-sheng Zhang, Yu-peng Lu
Summary: The microstructure of the phosphate coating on implant surface can be regulated by adjusting the Zn2+ concentration in the phosphate solution, leading to the evolution of crystal morphology from irregular granules to regular cubic blocks. The increase in Zn2+ concentration also results in an improvement in coating thickness, wettability and corrosion resistance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Emily Jeng, Zhen Qi, Ajay R. Kashi, Sara Hunegnaw, Ziyang Huo, John S. Miller, Leonardus B. Bayu Aji, Byung Hee Ko, Haeun Shin, Sichao Ma, Kendra P. Kuhl, Feng Jiao, Juergen Biener
Summary: This study systematically investigated the effect of thickness and morphology of Cu catalyst coatings on electrochemical CO2 reduction (ECR) performance. The results showed that electron beam (EB) Cu outperformed magnetron-sputtered (MS) Cu in terms of current density, selectivity, and energy efficiency, with 400 nm thick catalyst coatings performing the best. The superior performance of EB-Cu catalysts was attributed to their faceted surface morphology and sharper Cu/gas diffusion layer interface.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Yongchao Rao, Xiaosi Qi, Qiong Peng, Yanli Chen, Xiu Gong, Ren Xie, Wei Zhong
Summary: This study successfully synthesized flower-like core@shell structure NiO/Ni@C microspheres by carbon thermal reaction, improving their magnetic loss, polarization loss, and conduction loss capabilities and demonstrating superior microwave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Agronomy
James B. O'Sullivan, Jian Jin, Caixian Tang
Summary: This study investigated the effect of elevated CO2 on phosphorus (P) requirement for enhanced N2 fixation in white lupin plants. The results showed that elevated CO2 increased the critical P concentration needed for N2 fixation, indicating that more P is required to support greater N2 fixation under elevated CO2. Additionally, elevated CO2 improved N2 fixation in P-deficient plants by increasing nitrogenase activity and excess cation uptake.
Article
Chemistry, Organic
Somnath Sarkar, Swarbhanu Ghosh, Sk Manirul Islam
Summary: This study reports a simple covalent organic framework (COF) as a potential heterogeneous ligand for the Zn-II-catalyzed fixation and transformation of CO2 into value-added chemicals. The catalytic investigations convincingly demonstrated the perfect catalytic activity of the Zn-II-functionalized COF in the fixation of CO2 for diverse epoxides and atmospheric cyclizative CO2 capture.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2022)
Article
Chemistry, Physical
Priyanka Sarkar, Anjan Das, Swarbhanu Ghosh, Sk Manirul Islam
Summary: Photocatalytic metal-free carboxylation of olefins offers a potential solution for converting greenhouse gas CO2 into valuable chemicals. The constructed 2D COF material shows efficient catalytic activity for the carboxylation of styrene, with outstanding recyclability.
Article
Engineering, Chemical
Surya Das, Ipsita Hazra Chowdhury, Arpita Hazra Chowdhury, Netrapal Singh, Mitali Sarkar, Sk. Manirul Islam
Summary: This paper describes the facile hydrothermal synthesis of a sponge-like 2D layered triazine based covalent organic framework (COF) structure. The highly ordered pi-conjugated metal-free COF structure possesses excellent photocatalytic performance for the production of formic acid and methanol via CO2 reduction, and can be reused for multiple reaction cycles without loss of catalytic efficiency.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Priyanka Sarkar, Arpita Hazra Chowdhury, Sk Riyajuddin, Swarbhanu Ghosh, Sk Manirul Islam
Summary: A 2D polyimide-linked covalent organic framework has been developed as a stable and efficient porous photocatalyst, showing the ability to reduce CO2 to formic acid, formaldehyde, and methanol without the presence of any metal. The catalyst exhibits good catalytic efficiency and recyclability, providing a promising approach for expanding photo-induced CO2 conversion in solar fuel-based devices.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Somnath Sarkar, Swarbhanu Ghosh, Robius Sani, Jhumur Seth, Aslam Khan, Sk. Manirul Islam
Summary: By utilizing a postsynthetic modification approach, quaternary ammonium salts were successfully immobilized onto a microporous covalent organic framework (COF), resulting in a metal-free catalyst with high catalytic performance. The catalyst showed efficient coupling of CO2 with epoxides under mild conditions, exhibiting broad scope and functional group tolerance. Additionally, the catalyst can be recovered and reused multiple times with similar performance, making it a promising candidate for industrial implementation.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Surya Das, Priyanka Sarkar, Manoj Goswami, Sk. Murshed Ali, Mijanur Rahaman Mollah, Sk. Manirul Islam
Summary: To address the increased greenhouse effect, the development of efficient porous adsorbents for rapid CO2 uptake is a new concern. The photocatalytic N-formylation of amines through CO2 reduction offers a green approach for utilizing CO2. Researchers have constructed a crystalline Co(ii)@Tp-TH COF catalyst with a band gap energy of 2.4 eV, which exhibits excellent catalytic activity and recyclability for the synthesis of N-formylated products from various amines under ambient CO2 pressure. These findings provide a new environmentally preferable method for the synthesis of N-formamides.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Titu Mondal, Jhumur Seth, Somnath Sarkar, Sk Manirul Islam
Summary: Recently, the conversion of carbon dioxide into important fine chemicals has gained attention due to its abundance as a C1 source. A single-step synthesis of a SO3H-anchored covalent organic framework (COF) has been introduced in this study. The COF showed a large surface area and acted as a catalyst for the carbamate synthesis reaction from epoxides and amines in the presence of CO2. It exhibited excellent catalytic activity with high yield and could be easily separated and reused.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Amitesh Roy, Najirul Haque, Ritayan Chatterjee, Surajit Biswas, Asim Bhaumik, Mitali Sarkar, Sk. Manirul Islam
Summary: A metal nanoparticle embedded catalyst AgNPs@TzTa-POP was fabricated by immobilizing silver nanoparticles on the surface of a triazinetriamine-based porous organic polymer (TzTa-POP). This catalyst showed high catalytic activity in the carboxylative cyclization of propargyl alcohols and the three component coupling reaction involving CO2, aromatic/aliphatic amine, and aliphatic/aromatic halide. It achieved high selectivity and yield for the desired products under mild reaction conditions, and maintained its activity for multiple reaction cycles.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Dip Kumar Nandi, Jhumur Seth, Pekham Chakrabortty, Swarbhanu Ghosh, Avik Chowdhury, Asim Bhaumik, Sk Manirul Islam
Summary: In this study, a composite catalyst consisting of a triazine based porous organic polymer and nickel nanoparticles was synthesized, and it showed excellent photocatalytic activity for the reduction of CO2 to methanol. The composite catalyst exhibited high surface area and low band gap, and demonstrated high catalytic efficiency and recyclability, indicating great potential for renewable carbon source methanol synthesis.
Review
Materials Science, Multidisciplinary
Priyanka Sarkar, Ipsita Hazra Chowdhury, Surya Das, Sk Manirul Islam
Summary: This review discusses the application of covalent organic frameworks (COFs) as heterogeneous catalysts for CO2 reduction, and highlights the influence of physicochemical properties of COFs on the efficiency of CO2 reduction.
MATERIALS ADVANCES
(2022)
Review
Materials Science, Multidisciplinary
Robius Sani, Tusar Kanto Dey, Mainak Sarkar, Priyanka Basu, Sk Manirul Islam
Summary: Global warming is a major threat to the survival of the planet, with carbon dioxide being the primary cause. To address this issue, covalent organic frameworks (COFs) have been developed as a new type of multifunctional crystalline organic catalyst. COF materials can be used to fix carbon dioxide and synthesize valuable chemicals. The specific surface area of the COF plays a crucial role in its catalytic performance. The incorporation of different metals into the COF material enhances its catalytic efficacy in carbon dioxide fixation reactions.
MATERIALS ADVANCES
(2022)
Article
Chemistry, Multidisciplinary
Atanu Sahoo, Arpita Hazra Chowdhury, Sk. Manirul Islam, Tanushree Bala
Summary: An efficient one-pot wet chemical synthesis strategy was reported for the preparation of NiO nanoparticles, which demonstrated excellent catalytic properties for the photocatalytic reduction of CO2 to formaldehyde.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Pekham Chakrabortty, Swarbhanu Ghosh, Anjan Das, Aslam Khan, Sk. Manirul Islam
Summary: A new triazine-based organized 2D covalent organic framework, TRITER-2, displayed excellent photocatalytic activity for the synthesis of methanol through the reduction of CO2. The material showed a high surface area and could be recycled multiple times without losing its catalytic performance. This sustainable and efficient catalyst offers a low-cost, non-toxic, and low carbon footprint route for the synthesis of methanol.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Manideepa Sengupta, Tuhin Suvra Khan, Subhasis Das, Gurmeet Singh, Ravi Kumar, Dibyendu Bhattacharya, M. Ali Haider, Sk Manirul Islam, Ankur Bordoloi
Summary: In this study, Rh2O3 nanoparticles confined in silica meso-channels were prepared and showed excellent catalytic activity and selectivity in the direct addition of piperidine to ethylene. The superior activity of the nanoparticles over large particles was attributed to the binding mode of ethylene with the Rh species.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Surya Das, Ipsita Hazra Chowdhury, Adwitiya Chakraborty, Milan Kanti Naskar, Mitali Sarkar, S. K. Manirul Islam
Summary: We have designed a nano-sheet-like porous organic polymer that serves as a photo-catalyst with exceptional catalytic performances for the synthesis of formic acid and formaldehyde.
MATERIALS ADVANCES
(2022)
