Article
Chemistry, Multidisciplinary
Xiaochun Liu, Chaoyue Wang, Jiaolong Meng, Xiaodong Yue, Qingyun Wang, Jiatian Lu, Junke Wang, Xicun Wang, Yingxiao Zong, Xuefeng Jiang
Summary: This study successfully synthesized a mesoporous catalyst with single-atomic cobalt active sites, and demonstrated its excellent performance and potential applications in the hydrogenation of nitroarenes.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Physical
Muhong Li, Shanyong Chen, Qike Jiang, Qingliang Chen, Xuan Wang, Yong Yan, Jian Liu, Changchang Lv, Weiping Ding, Xuefeng Guo
Summary: This study reveals several unusual generalities in the hydrogenation of nitroarenes, based on experiments with four typical Co-N-C materials derived from different methodologies, showing that the single-atom species Co-N-x are the main active sites of the Co-N-C catalysts in this process.
Article
Chemistry, Physical
Dmitri A. Bulushev, Galina N. Chekhova, Vladimir Sobolev, Andrey L. Chuvilin, Yuliya Fedoseeva, Olga A. Gerasko, Alexander Okotrub, Lyubov G. Bulusheva
Summary: The study found that cucurbiturils can act as a co-catalyst for hydrogen production reactions, reducing the reaction temperature and forming unique structures through interaction with SWCNTs and Au. This provides a new avenue for the development of catalysts containing cucurbiturils.
MATERIALS TODAY ENERGY
(2022)
Article
Chemistry, Physical
Guanyi Zhang, Lin Liu, Qingqing Zhu, Xiangjin Kong
Summary: In this study, an efficient Co@NC/AC-800 catalyst was constructed using activated carbon as a template. The catalyst showed better dispersion and stability of active components, along with excellent reusability for the reduction of nitroarenes.
Article
Chemistry, Multidisciplinary
Jamie P. Southouse, Laura Lazzarini, Alex O. Ibhadon, M. Grazia Francesconi
Summary: Ultra-small FeS2 nanoparticles were successfully prepared and utilized as catalysts in the synthesis of substituted anilines via hydrogen transfer reaction, demonstrating superior catalytic performance across various nitroarene substrates. The nanocatalyst showed excellent chemoselectivity and recyclability, making it a promising candidate for future applications.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Qingqing Xie, Huizi He, Xiaofei Qin, Min Zhang, Hongliu Wan, Chang Song, Yong Yang, Xiaodong Sun
Summary: The construction of carbon-protected Ni-Fe nanoalloy catalyst improves the stability and selectivity in the selective hydrogenation reaction, advancing the application of non-noble metal catalysts in the selective hydrogenation of nitroarenes and facilitating the rational design of bimetallic catalysts.
Article
Chemistry, Multidisciplinary
Ariprasanth Ramalingam, Elavarasan Samaraj, Selvaraj Venkateshwaran, Sakkarapalayam Murugesan Senthilkumar, Gopal Chandru Senadi
Summary: Earth-abundant transition metal dichalcogenides (TMDs), especially molybdenum disulfide (MoS2), have been proven to be effective catalysts for improving the catalytic performance of heterogeneous catalysis in organic functional group conversion chemistry. In this study, a new method achieved 84% phase enrichment of 1T-MoS2 in aqueous medium, which provides the possibility for industrial applications. Furthermore, the catalytic behavior of 1T-MoS2 in the reduction of aromatic nitro compounds into aromatic amines was realized, showing high reproducibility, recyclability, and short reaction times.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Neha Antil, Ajay Kumar, Naved Akhtar, Rajashree Newar, Wahida Begum, Ashutosh Dwivedi, Kuntal Manna
Summary: The study introduces a highly efficient, chemoselective, and reusable nickel hydride catalyst for hydrogenation of nitro and nitrile compounds under mild conditions. The catalyst, based on aluminum metal-organic frameworks, has broad substrate scope and excellent functional group tolerance, and can be recycled at least 10 times. This work highlights the potential of MOF-based single-site earth-abundant metal catalysts for practical and eco-friendly production of chemical feedstocks and biofuels.
Article
Chemistry, Multidisciplinary
Peihui Shan, Ruilian Lin, Ming Liu, Zhu Tao, Xin Xiao, Jingxin Liu
Summary: The recognition features of glycine with cucurbit[5]uril and cucurbit[6]uril were investigated in aqueous solution and solid state using H-1 NMR spectroscopy and X-ray crystallography. Different binding modes were observed, with glycine showing exo binding with Q[5] and endo or dual binding with Q[6. X-ray crystallography showed the formation of exclusion complex with Q[5] and inclusion complex with Q[6], with hydrogen bondings observed between encapsulated glycine molecules in Q[6].
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Na-Na Li, Ming Yang, Xiao-Jie Xu, Xi-Yan Dong, Si Li, Shuang-Quan Zang
Summary: In this work, organic supramolecular linkers, CB[6] and BPHF@CB[6], were used to assemble dodenuclear silver chalcogenolate clusters into three one-dimensional materials under different synthesis conditions. The crystal structures of these CB[6]-based silver cluster-organic rotaxane frameworks were well resolved, and their emission properties were systematically investigated. This construction strategy involving organic supramolecular linkers provides a new methodology for cluster-assembled materials with intriguing structural and functional properties.
DALTON TRANSACTIONS
(2021)
Article
Engineering, Chemical
Ming Liu, Ran Cen, Jie Zhao, Zhi-Chao Yu, Li-Xia Chen, Qing Li, Zhu Tao, Xin Xiao
Summary: Selective adsorption and separation of aminophenol isomers from their mixture using cucurbit[6]uril (Q[6]) has been successfully achieved in this study. The obtained PAP and MAP have high purities, and the synthesized material shows reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Organic
Rakesh R. Behera, Surajit Panda, Rahul Ghosh, A. Ashis Kumar, Bidraha Bagh
Summary: Efficient catalytic hydrosilylation of nitroarenes to form aromatic amines under solvent-free conditions using a well-defined manganese(II)-NNO pincer complex with low catalyst loading is reported. The reaction offers a sustainable alternative to classical hydrogenation and has potential utility in the preparation of commercial drug molecules.
Article
Chemistry, Inorganic & Nuclear
Wen Xia, Yu-Mei Nie, Na Lei, Zhu Tao, Qiang-Jiang Zhu, Yun-Qian Zhang
Summary: The esterification reaction using Q[6]-STA catalyst to prepare BP and PG has been studied. The catalyst is easy to prepare, exhibits high catalytic activity, convenient recovery, stability, and reusability.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Physical
Muhong Li, Chunchen Zhang, Yu Tang, Qingliang Chen, Wen Li, Zhen Han, Shanyong Chen, Changchang Lv, Yujie Yan, Yu Zhang, Wenhua Zheng, Peng Wang, Xuefeng Guo, Weiping Ding
Summary: In this study, the effects of environment moieties, protic solvents, and external bases on the catalytic hydrogenation of nitroarenes using single-atom cobalt catalysts were investigated. The results showed that the presence of protic solvents or bases significantly facilitated the heterolysis of H2 and enhanced the reactivity and selectivity of the catalyst.
Article
Chemistry, Physical
Muhong Li, Chunchen Zhang, Yu Tang, Qingliang Chen, Wen Li, Zhen Han, Shanyong Chen, Changchang Lv, Yujie Yan, Yu Zhang, Wenhua Zheng, Peng Wang, Xuefeng Guo, Weiping Ding
Summary: This study reports that the presence of environmental components, protic solvents, and external bases can enhance the chemoselective hydrogenation of nitroarenes by cobalt single-atom catalysts (SACs). The studies demonstrate that the heterolysis of H2 is facilitated by the participation of protic solvents or bases, leading to a superior activity and general chemoselectivity in the hydrogenation of various nitroarenes. The proposed catalytic cycle provides insights into the rational design of SACs by manipulating the microenvironment of active sites.
Article
Chemistry, Multidisciplinary
Dhanaji R. Naikwadi, Sanjay Mehra, Krishnan Ravi, Arvind Kumar, Ankush Biradar
Summary: In this study, phosphoric group-functionalized cellulose ionic liquid (IL) was synthesized and characterized. The functionalized cellulose IL exhibited catalytic activity in the synthesis of flavoring ketones (FKs). It could be recovered and reused multiple times without significant loss of activity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Brijesh Patel, Shilpa Dabas, Parth Patel, Saravanan Subramanian
Summary: One of the fundamental aims in catalysis research is to understand the factors that contribute to the superior performance of a certain scaffold as a catalyst. In this study, a simple and scalable electrostatically tuned phenol (ETP) was used as an organic catalyst for the transfer hydrogenation of N-arenes. The charged environment plays a crucial role in the catalytic transformation, and the biomimetic catalyst showed promising catalytic activity.
Article
Chemistry, Multidisciplinary
Balasaheb D. Bankar, Krishnan Ravi, Rajesh J. Tayade, Ankush V. Biradar
Summary: This study reports the synthesis of Ir-Co3O4 catalyst with different wt% using co-precipitation and hydrothermal methods for the direct hydrogenation of CO2. The catalyst exhibited excellent formic acid yield, and could be successfully recycled multiple times.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Physical
Balasaheb D. Bankar, Dhanaji R. Naikwadi, Rajesh J. Tayade, Ankush Biradar
Summary: The concentration of CO2 in the atmosphere is increasing rapidly, causing serious environmental concerns. This study presents the synthesis of a bimetallic oxide composite catalyst with lower loading of active Ru on Co3O4 support. The catalyst showed high activity in the reduction of CO2 to formic acid under tailored conditions. The Ru-supported Co3O4 catalyst captures and hydrogenates CO2 to formic acid, and it can be reused without losing its activity due to its alkali tolerant properties.
MOLECULAR CATALYSIS
(2023)
Article
Nanoscience & Nanotechnology
Rahul P. Gaikwad, Dhanaji R. Naikwadi, Ankush V. Biradar, Manoj B. Gawande
Summary: This study investigates the role of mesoporous graphitic carbon nitride (mpg-C3N4) photocatalyst in the esterification of substituted benzaldehyde under visible light irradiation at room temperature without any additives. The mpg-C3N4 material, characterized by various techniques, exhibits high surface area, porosity, medium band gap, and nanowire-like shape. These properties enhance the photocatalytic activity of mpg-C3N4 towards the esterification reaction.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Jean-Louis K. Gbe, Krishnan Ravi, Eric Kessein Tillous, Aarti Arya, Moussa Grafoute, Ankush V. Biradar
Summary: Sustainable chemistry research focuses on reducing atmospheric CO2, and a viable solution is to develop adsorbents for carbon capture and utilization. In this study, a 3D flower-like Mn-promoted MgO was synthesized and used as an adsorbent for CO2 capture and a catalyst for CO2 utilization. The designed Mn-doped MgO showed improved CO2 adsorption capacity and excellent catalytic behavior for the oxidation of ethylbenzene derivatives to carbonyl compounds in the presence of CO2 and O2.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Balasaheb D. Bankar, Dhanaji R. Naikwadi, Ankush Biradar
Summary: In this study, a highly efficient RuO2/ZrO2 oxide catalyst was synthesized, which exhibited superior activity for the hydrogenation of CO2 to formic acid. The structure and properties of the catalyst were characterized using various techniques, and a plausible mechanistic pathway for the reaction was proposed based on the experimental results.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Pooja Chaudhary, Dhanaji R. Naikwadi, Ankush V. Biradar, Surendra Singh
Summary: In this study, two-dimensional chiral Zn(II) Salen covalent organic frameworks (COFs) (2) were successfully synthesized through rapid microwave-promoted condensation. The synthesized chiral Zn-II Salen COF (2) exhibited excellent crystallinity, thermal stability, and a BET surface area of 454 m(2) g(-1). Furthermore, the post-synthetic metal exchange reaction was conducted to synthesize chiral Mn-III Salen COFs (3), which served as an effective heterogeneous catalyst for the enantioselective epoxidation with up to 72% ee. Chiral Mn-III Salen COF (3) could be easily separated and reused multiple times without compromising the enantioselectivity.
Article
Chemistry, Multidisciplinary
Gaje Singh, Satyajit Panda, Jyoti Gahtori, Pranay Rajendra Chandewar, Pradeep Kumar, Indrajit K. Ghosh, Ankush Biradar, Debaprasad Shee, Ankur Bordoloi
Summary: Double metal cyanide-derived iron-based catalysts were used for CO2 hydrogenation to short-chain olefins, showing potential for carbon neutrality. K-promoted double metal cyanide catalysts consisting of iron and transition metals (Mn, Co, Cu, and Zn) were prepared and tested for CO2 value addition to short-chain olefins. The results revealed different adsorption/desorption characteristics of the catalysts, affecting the CO2 conversion and selectivity of the desired products.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Review
Green & Sustainable Science & Technology
Dhanaji R. Naikwadi, Shilpa Dabas, Krishnan Ravi, Amravati S. Singh, Jacky H. Advani, Saravanan Subramanian, Ankush V. Biradar
Summary: The transformation of bioresources into specialty chemicals is important for chemical research. The valorization of bio-oil strategies using stable chemical entities creates application-oriented and safe products. The valorization of a-pinene has been explored extensively to prepare perfumery products, with challenges in catalyst design and reaction conditions. This review discusses recent advances and challenges in utilizing a-pinene for the synthesis of perfumery intermediates, highlighting the role of different catalytic systems.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Chemistry, Multidisciplinary
Dhanaji R. Naikwadi, D. Muthukumar, Rajesh J. Tayade, Renjith S. Pillai, Ankush V. Biradar
Summary: This study demonstrates the potential use of HY-zeolite as a catalyst for photochemical applications, specifically the selective isomerization of α-pinene oxide to carveol. The results show that using a LED-based reactor can significantly reduce energy consumption compared to thermal and UV lamp-based reactors. The catalyst used in this study was found to be recyclable, and the reaction mechanism was explored using in situ spectroscopic studies.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Kanika Solanki, Shivani Sharma, Pooja Rana, Bhawna Kaushik, Sneha Yadav, Ranjana Dixit, Ankush V. Birdar, Ashu Gupta, R. K. Sharma
Summary: In order to remove Pb2+ ions from wastewater rapidly and selectively, we developed an economically viable three-dimensional ferrite-based hierarchical structure with high surface area, good thermal stability, and flower-shaped morphology. The synthesized material exhibited excellent adsorption performance for Pb2+ ions. Experimental exploration also demonstrated the selectivity and efficiency of the material in real water samples. The rating: 8 points.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Kirti, Amravati S. Singh, Kinjal B. Patel, Ashish A. Patil, Ankush V. Biradar, Divesh N. Srivastava
Summary: This study describes the synthesis of an electrocatalyst consisting of Ni and N-doped graphitic carbon for green hydrogen production, which exhibits good stability and activity. The morphology and structural properties of the electrocatalyst were well-characterized using various characterization techniques.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Vishal A. A. Ghadge, Krishnan Ravi, Dhanaji R. R. Naikwadi, Pramod B. B. Shinde, Ankush V. V. Biradar
Summary: By utilizing microbial eumelanin, porous N-doped carbon materials were synthesized and used as metal-free biocatalysts for the oxidation of olefins and alkyl aromatic hydrocarbons. The synthesized catalyst showed higher catalytic activity for the oxidation of styrene under milder reaction conditions.
Article
Energy & Fuels
Krishnan Ravi, Dileep B. Pawara, Jean Louis K. Gbe, Ankush V. Biradar
Summary: In the pursuit of sustainable alternatives for petroleum fuels, bio-based hydrocarbons are seen as a promising choice. This study developed a molybdenum catalyst supported on bio-derived carbon, which enables the direct synthesis of fuel precursors from fructose. The synthesized catalyst shows remarkable performance compared to commercial catalysts.
