Article
Chemistry, Multidisciplinary
Hongbo Yu, Fei Zhang, Shuibo Wang, Yang Cong, Shiwei Wang, Lin Zhu
Summary: In this study, Rh nanoparticles were encapsulated into hollow mesoporous aluminosilicate nanospheres to synthesize nanoreactors for guaiacol hydrodeoxygenation. The optimized catalyst displayed enhanced guaiacol activity and cyclohexane selectivity due to the synergistic effect between the metallic Rh and acid sites. The confinement effect of Rh NPs inside the hollow cavities improved the catalytic durability and stability.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Energy & Fuels
Bo Chen, Ruiheng Rao, Meifang Cao, Chengzhi He, Yong Qian, Xueqing Qiu, Xinping Ouyang
Summary: This study has developed a bifunctional ZrP2O7-Ni12P5 catalyst for efficiently converting lignin-derived bio-oils into hydrocarbons through HDO. The catalyst with the molar ratio of Zr/Ni at 0.4 shows the best catalytic performance, achieving high yields of cyclohexane from guaiacol and hydrocarbons from lignin-derived bio-oils under mild conditions.
Article
Green & Sustainable Science & Technology
Majid Saidi, Maryam Safaripour
Summary: Novel nickel-molybdenum nanoparticles catalysts stabilized with ether-functionalized ionic polymer (Ni-Mo NPs@IP) were successfully synthesized and demonstrated superior catalytic activity in converting phenolic compounds into deoxygenated fuel-grade products. The removal of oxygen was more pronounced at higher temperatures, pressures, and longer reaction times.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Energy & Fuels
Minghao Zhou, Yaqi Xue, Fei Ge, Jing Li, Haihong Xia, Junming Xu, Jun Zhao, Changzhou Chen, Jianchun Jiang
Summary: It was found that MOF-derived Ni-based bimetallic catalysts are effective for the in-situ hydrogenation/hydrodeoxygenation of lignin-derived monophenols and dimers using isopropanol as the hydrogen-donor solvent. The synergistic effects of bimetallic catalysts and their catalytic properties have a significant impact on the conversion rate of phenols and the yields of cyclohexanol/cycloalkanes.
Article
Chemistry, Multidisciplinary
Bingxiao Zheng, Jinliang Song, Haihong Wu, Shitao Han, Jianxin Zhai, Kaili Zhang, Wei Wu, Caiyun Xu, Mingyuan He, Buxing Han
Summary: This work describes the efficient Pd-catalyzed direct coupling of aryl ethers and morpholines to produce 4-cyclohexylmorpholines, revealing a mechanism involving the cleavage of C(Ar)-O bonds and subsequent reductive amination. The method offers a new approach for synthesizing useful fine chemicals with good yields.
Review
Energy & Fuels
Vallabh S. Prabhudesai, Lakshmiprasad Gurrala, Ravikrishnan Vinu
Summary: The review focuses on the hydrodeoxygenation (HDO) of model compound oxygenates in order to propose a comprehensive reaction mechanism for the HDO of bio-oils. The effects of catalyst, temperature, hydrogen partial pressure, and solvent on the product distribution are thoroughly discussed. This review provides valuable insights into the interplay between the catalyst nature, HDO mechanism, and product distribution, as well as offering guidance for the practical application of HDO in bio-oil upgrading.
Article
Chemistry, Multidisciplinary
Farzaneh Nasiri, Javad Mokhtari, Salman Taheri, Zohreh Mirjafary
Summary: DCID (Dichloroimidazolidinedione) 2 is a novel coupling reagent used for esterification of carboxylic acids with alcohols at room temperature. This reaction represents the first DCID-promoted esterification under mild conditions, achieving good to excellent yields. The reaction can proceed smoothly with carboxylic acids and benzyl alcohols containing electron-withdrawing and donating groups at ambient temperature. Isolated and characterized intermediates 3a and 7 were used to propose a plausible mechanism, and the structures of synthesized compounds were confirmed by comparing their melting points and NMR spectra.
Article
Chemistry, Multidisciplinary
Liang Jiang, Guangyue Xu, Yao Fu
Summary: The study focused on utilizing nitrogen-doped carbon as a catalyst for the efficient conversion of levulinic acid to gamma-valerolactone under mild conditions with low hydrogen pressure. The nitrogen-doped carbon introduced catalyst showed excellent activity and stability in selectively hydrogenating carbonyl groups.
Article
Polymer Science
Wenxin Xu, Manyue Zhang, Wenzhen Du, Guixia Ling, Yue Yuan, Peng Zhang
Summary: The researchers have developed a novel and multifunctional hydrogel wound dressing, which can achieve rapid hemostasis and promote wound healing. The hydrogel is composed of two interwoven networks, one consisting of Bio-ILs and methacrylated hyaluronic acid (MeHA) and the other consisting of oxidized hyaluronic acid (OHA) and e-Poly-(L-lysine) (e-PL). In vitro studies have shown that the hydrogel has a porous structure, good swelling, antibacterial properties, and biocompatibility. Rat tail amputation and wound healing experiments have demonstrated the ability of the hydrogel to achieve rapid hemostasis and promote wound healing. In conclusion, the Bio-IL/MeHA/OHA/e-PL hydrogel is a naturally-derived, biocompatible, and promising wound dressing.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Mengting Chen, Qifeng Zhong, Jiao Ma, Zhiyang Zhang, Yingxin Liu, Zuojun Wei, Shuguang Deng
Summary: In this study, non-noble Ni-Mn/SiO2 catalysts with low Ni loading were designed for the selective hydrogenation of levulinic acid (LA) to gamma-valerolactone (GVL). The catalyst exhibited excellent activity, selectivity, and reusability, providing new insights for the rational design of non-noble metal catalysts for the conversion of LA to GVL.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Rodiansono, Heny Puspita Dewi, Kamilia Mustikasari, Maria Dewi Astuti, Sadang Husain, Sutomo
Summary: Molybdenum oxide-modified ruthenium on titanium oxide catalysts exhibit high activity for the hydroconversion of carboxylic acids to alcohols and alkanes under mild reaction conditions.
Article
Chemistry, Physical
Xiaomeng Dou, Wenzhi Li, Chaofeng Zhu, Xiao Jiang
Summary: The depolymerization and demethoxylation of Kraft lignin (KL) was achieved using a novel H-NiFe2O4 catalyst under mild conditions, with high liquid product yield and minimal coke yield. The catalytic performance of H-NiFe2O4 benefits from the synergy of Ni and Fe, promoting lignin depolymerization while suppressing condensation reactions. Plausible reaction pathways of KL depolymerization over H-NiFe2O4 are discussed, demonstrating the potential of this catalytic system for efficient conversion of KL into liquid fuels.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Energy & Fuels
Chunli Li, Yahui Zhang, Ji Ju, Hao Li
Summary: In this study, a N-doped carbon nanospheres-supported Pd catalyst for hydrodeoxygenation was designed by defect-enhancement engineering. The research found that enhancing defects could improve the dispersion of Pd nanoparticles, thus enhancing the catalytic activity under mild conditions. Additionally, the catalyst showed good recyclability.
Article
Energy & Fuels
Lin Hu, Xian-Yong Wei, Yu-Hong Kang, Xian-Hou Guo, Mei-Ling Xu, Zhi-Ming Zong
Summary: Recent research on high yield cycloalkanes derived from lignin-derived bio-oil using mordenite-supported ruthenium bifunctional catalyst show promising results under mild conditions. The catalyst exhibits good catalytic activity and has potential for producing high yield cycloalkanes, with feed mass being a key factor for successful HDO reactions.
JOURNAL OF THE ENERGY INSTITUTE
(2021)
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
Multidisciplinary Sciences
Wei-Tse Lee, Antoine van Muyden, Felix D. Bobbink, Mounir D. Mensi, Jed R. Carullo, Paul J. Dyson
Summary: Carbon-carbon bond cleavage mechanisms play a crucial role in the deconstruction of alkanes and polyolefins, and can be classified based on the product distribution. A systematic approach was used to evaluate different catalysts and establish an activity-mechanism map for benchmarking catalytic activity and identifying optimal catalysts.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Shubhajit Das, Roland C. Turnell-Ritson, Paul J. Dyson, Clemence Corminboeuf
Summary: Despite recent progress in the chemistry of frustrated Lewis pairs (FLPs), direct FLP-catalyzed hydrogenation of CO2 remains elusive. The authors propose a mapping method to link the chemical composition of FLPs with their activity in catalytic hydrogenation of CO2, and they experimentally validate a combination with high catalytic turnover.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Pavel Culik, Keith Brooks, Cristina Momblona, Martin Adams, Sachin Kinge, Francois Marechal, Paul J. Dyson, Mohammad Khaja Nazeeruddin
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Physical
Gabriela Gastelu, David Savary, Martin Hulla, Daniel Ortiz, Jorge G. Uranga, Paul J. Dyson
Summary: The article introduces an alternative reaction pathway for the O-formylation of alcohols and bio-alcohols, which produces industrially relevant formate esters. The reaction is catalyzed by formic acid, which can be produced from CO2 captured in the reaction. The in situ produced formic acid improves the reaction rate, and each catalyst can be recycled for reuse.
Editorial Material
Chemistry, Organic
Xiao-Feng Wu, Paul J. Dyson, Bruce A. Arndtsen
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Lorenzo Pietracci, Riccardo Pettinari, Alessia Tombesi, Fabio Marchetti, Claudio Pettinari, Agustiïn Galindo, Farzaneh Fadaei-Tirani, Mouna Hadiji, Paul J. Dyson
Summary: This study investigates the coordination mechanisms of pyrazolone ligands containing a pyridine ring with the (Ru(II)) fragment through experimental and theoretical calculations. The ligands were found to coordinate in an unusual N,O-chelating fashion with Ru(II), and various complexes were synthesized. The study provides important insights into the properties of the ligands and complexes.
Article
Chemistry, Inorganic & Nuclear
Alfonso Annunziata, Maria Elena Cucciolito, Maddalena Di Ronza, Giarita Ferraro, Mouna Hadiji, Antonello Merlino, Daniel Ortiz, Rosario Scopelliti, Farzaneh Fadaei Tirani, Paul J. Dyson, Francesco Ruffo
Summary: This article reports a series of Ruthenium(II) complexes with a three-legged piano-stool structure based on an arene ring and an N-heterocyclic carbene(NHC)-carbene ligand with a peracetylated glucose moiety. The complexes undergo hydrolysis in water and show reactivity towards model nucleophiles and biological macromolecules. However, they exhibit low anti-tumor activity against human ovarian carcinoma cells and cisplatin-resistant cells.
Article
Chemistry, Multidisciplinary
Shunlin Zhang, Yuxin Xie, Rosie J. J. Somerville, Farzaneh Fadaei Tirani, Rosario Scopelliti, Zhaofu Fei, Dunru Zhu, Paul J. J. Dyson
Summary: This study reports a new family of proton conductors based on MIL-101 and protic ionic liquid polymers (PILPs) containing different anions. The PILP@MIL-101 composites maintain the nanoporous cavities and water stability of MIL-101, while providing much-improved proton transport. The PILP@MIL-101 composite with HSO4- anions shows superprotonic conductivity (6.3 x 10(-2) S cm(-1)) at 85 degrees C and 98% relative humidity.
Article
Chemistry, Multidisciplinary
Haodan Guo, Yanyan Fang, Yan Lei, Jinpeng Wu, Minghua Li, Xiangrong Li, Hong Bo Cheng, Yuan Lin, Paul J. Dyson
Summary: This study demonstrates the use of a self-assembled ionic insulating layer to improve the performance of wide-bandgap perovskite solar cells. The layer effectively suppresses halide phase separation, reducing open-circuit voltage loss and improving device stability.
Article
Multidisciplinary Sciences
Mingyang Liu, Paul J. Dyson
Summary: Efficient valorization of lignin, a sustainable and renewable source, is essential for reducing dependence on fossil-derived feedstocks. This study presents a highly efficient strategy for extracting aromatic monomers and generating functionalized diaryl ethers from lignin using oxidative cross-coupling reactions.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Gabriela Gastelu, Pritha Saha, Paul J. Dyson, Martin Hulla, Jorge G. Uranga
Summary: Autocatalytic reactions play a key role in the beginning of life and carbon capture and utilization, providing inspiration for the development of advanced systems for the synthesis of value-added chemicals.
Article
Chemistry, Multidisciplinary
Yue Hu, Xinmin Li, Mingyang Liu, Stephan Bartling, Henrik Lund, Paul J. Dyson, Matthias Beller, Rajenahally V. Jagadeesh
Summary: Catalytic hydrodeoxygenation is a crucial technology for converting biomass-based feedstocks into essential chemicals and fuels. This study reports the preparation and application of Ni nanoparticles supported on ZSM-5 as an efficient hydrodeoxygenation catalyst. The Ni-based nanoparticles exhibit selective hydrodeoxygenation of various functional substrates, showcasing their versatility.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Patrick Doerflinger, Yong Ding, Valentin Schmid, Melina Armer, Roland C. Turnell-Ritson, Bin Ding, Paul J. Dyson, Mohammad Khaja Nazeeruddin, Vladimir Dyakonov
Summary: This study investigates the effect of a stabilizing additive on the charge carrier mobility and lifetime in triple cation perovskite thin films under thermal stress. The results reveal different conductivity behaviors in two temperature regions and identify two dominant scattering mechanisms. The stabilizing additive limits temperature-activated mobile ions and retards degradation of the perovskite film, leading to improved performance and stability.
Article
Chemistry, Inorganic & Nuclear
Sarah A. P. Pereira, Jan Romano-deGea, Ana Isabel Barbosa, Sofia A. Costa A. Lima, Paul J. J. Dyson, M. Lucia M. F. S. Saraiva
Summary: The study demonstrates that ruthenium-based compounds, especially [Ru(& eta;(6)-toluene)(PPh3)(2)Cl]Cl, show high selectivity and cytotoxicity against breast cancer cells. This compound has potential as a promising candidate for breast cancer treatment.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Alberto Gobbo, Sarah A. P. Pereira, Lorenzo Biancalana, Stefano Zacchini, M. Lucia M. F. S. Saraiva, Paul J. Dyson, Fabio Marchetti
Summary: Compared with Ru-II-arene compounds, the medicinal potential of homologous Ru-II-tpm compounds [tpm = tris(pyrazolyl)methane] is not well explored. A series of [RuCl(kappa(3)-tpm)(PPh3)(L)]Cl complexes were synthesized by reacting pyridine, 4-pyridinemethanol, and four functionalized pyridines with the precursor [RuCl(kappa(3)-tpm)(PPh3)(2)]Cl. The complexes exhibited antiproliferative activity against cancerous cell lines and inhibition towards COX-2 and GSTP1 enzymes.
DALTON TRANSACTIONS
(2022)
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.
