Review
Biochemistry & Molecular Biology
Changlei Xia, Xin Jin, Ahmad Parandoust, Reza Sheibani, Zahra Khorsandi, Narjes Montazeri, Yingji Wu, Quyet Van Le
Summary: Chitosan (CS) is the second most abundant natural polymer in the earth's crust. Its unique properties have led to increased applications in various fields such as medicine and pollution removal. Using CS as a template and support for metal nanoparticles can effectively eliminate nitro compounds, a category of biological pollutants.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Energy & Fuels
Minoo Bagheri, Yeganeh Amidi, Mohammad Yaser Masoomi
Summary: In this study, quasi-ZIF-67 (Q-ZIF-67) with large-scale structural defects was synthesized via controlled thermal partial deligandation. Q-ZIF-67 exhibited enhanced catalytic activity for hydrolysis of NaBH4, generating hydrogen at a high rate under mild conditions. Mechanistic studies revealed the importance of strong acidity for efficient hydrogen generation.
Article
Metallurgy & Metallurgical Engineering
Anyang Tang, Jiahe Zhang, Huazhen Cao, Huibin Zhang, Guoqu Zheng
Summary: This study demonstrates the feasibility and efficacy of rapidly synthesizing ultra-fine rhenium nanoparticles in a solution-based approach by adjusting experimental parameters.
Article
Chemistry, Multidisciplinary
Frances Pope, Jeffrey Jonk, Millie Fowler, Petrus C. M. Laan, Norbert J. Geels, Larissa Drangai, Vitaly Gitis, Gadi Rothenberg
Summary: The safety concern of using large amounts of compressed or liquid hydrogen in a transition to a hydrogen economy can be addressed by using chitosan as a catalyst support. Chitosan spheres encapsulating cobalt catalysts remain stable at high reaction pH, and show high catalytic activity and reusability.
Article
Engineering, Environmental
Debashis Roy, Sudarsan Neogi, Sirshendu De
Summary: A non-noble metal doped graphitic carbon nitride-based catalyst ZIF-CN was successfully prepared using a facile coprecipitation method for the reduction of nitrophenols in the presence of sodium borohydride. The synthesized catalyst showed excellent reduction activities towards various nitrophenols and can be reused for at least 10 consecutive cycles without significant loss of catalytic activity, demonstrating great potential for nitrophenol reduction under ambient conditions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Sayyed Jaheera Anwar, Hanis Mohd Yusoff, Irshad Ul Haq Bhat, Lee Khai Ern
Summary: This study demonstrates the convenient synthesis of seaweed supported copper nanoparticles using aqueous Sargassum cervicorne extract. The synthesized CuNPs were characterized and tested as catalysts for dye degradation, showing excellent performance. The findings highlight the potential of ecofriendly CuNPs for the treatment of dye-contaminated water.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Md Mahiuddin, Bungo Ochiai
Summary: Lemon juice serves as an effective reducing and capping agent for the synthesis of BiNPs in basic aqueous media, which are stable and catalyze the reduction of 4-nitrophenol to 4-aminophenol by NaBH4.
Article
Chemistry, Multidisciplinary
Luca De Angelis, Graham C. Haug, Gildardo Rivera, Soumen Biswas, Ammar Al-Sayyed, Hadi Arman, Oleg Larionov, Michael P. Doyle
Summary: One important reaction of 1,2,3-triazines is the inverse electron demand Diels-Alder (IEDDA) cycloaddition with a dienophile, which proceeds through nucleophilic addition to the triazine followed by N-2 loss and cyclization. Previous studies have not provided a comprehensive understanding of the site of nucleophilic addition on the triazine. This study investigated the C-, N-, H-, O-, and S-nucleophilic additions on 1,2,3-triazine and 1,2,3-triazine-1-oxide frameworks and revealed the differentiation of addition at the 4- and 6-positions. Computational studies further examined the factors influencing the outcomes of these reactions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Jialu Shen, Weifeng Chen, Guo Lv, Zihan Yang, Jiaying Yan, Xiang Liu, Zhongxu Dai
Summary: Recently, graphene quantum dots-transition metal nanoparticles (GQDs-TMNPs) have been successfully applied in the hydrolysis of NH3BH3 (AB) and NaBH4, showing high dispersibility and activity. GQDs-RhNPs, GQDs-RuNPs, and GQDs-PtNPs demonstrate high catalytic activity in the hydrolysis of AB, with turnover frequencies (TOFs) reaching up to 656, 384, and 281 mol(H2)center dot mol(cat)(-1) min(-1), respectively.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Fariba Rezaei, Mohammad Dinari
Summary: In this experiment, a Schiff-base covalent organic polymer (COP) synthesized with different amounts of silver nanoparticles trapped by O and N atoms was used as an efficient nanocatalyst for the reduction of nitroaromatics. The catalyst structure was confirmed using various analysis techniques, and the Ag nanoparticles were found to be evenly distributed on the COP. The COP nanoparticles were proven to be an effective pattern for the elimination of industrial contaminants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Biochemistry & Molecular Biology
Na Hye Shin, Yoo Jin Lim, Chorong Kim, Ye Eun Kim, Yu Ra Jeong, Hyunsung Cho, Myung-Sook Park, Sang Hyup Lee
Summary: This article presents the studies on the selective synthesis of dialkyl selenide compounds 1. By optimizing the reaction conditions, various dialkyl selenides were efficiently synthesized, and the influence of reaction pathways and solvents was investigated.
Article
Chemistry, Multidisciplinary
Yue Hou, Cheng-Jie Jiang, Ying Wang, Jing-Wei Zhu, Jia-Xing Lu, Huan Wang
Summary: In this study, nitrogen-doped mesoporous carbon (NMC) was used to support CuSb and prepare an efficient catalyst for electrocatalytic reduction of CO2 to high value-added fuels. The results showed that the catalytic activity was significantly improved compared to Cu/NMC, and the Cu content also played a role in the activity of the CO2 reduction reaction.
Article
Materials Science, Multidisciplinary
Juan Wang, Li-jun Yang, Xiao-chong Zhao, Pan Yang, Wei Cao, Qing-song Huang
Summary: Bimetal materials derived from transition metals can serve as good catalyst candidates for specific reactions, particularly when loaded on graphene for enhanced performance in sodium borohydride hydrolysis. A simple thermal reduction strategy was used to prepare NixCo10-x series bimetal catalysts, with Ni1Co9 exhibiting the best catalytic performance. The inclusion of graphene as a supporting frame led to Ni1Co9@Graphene with a large surface area and high turnover frequency for efficient catalytic properties in H₂ generation.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Sudharanjan Bera, Flora Banerjee, Suman Kalyan Samanta
Summary: Organic polymer networks (OPNs) are potential materials for supporting metal nanoparticles for catalytic applications. In this study, silver nanoparticles (AgNPs) and ruthenium nanoparticles (RuNPs) were generated within a phosphate-based OPN-4. The resulting M@OPN-4 (M=Ag/Ru) heterogeneous catalysts exhibited excellent catalytic activity, high selectivity, and easy recovery for up to five cycles.
Article
Materials Science, Paper & Wood
Tahseen Kamal, Sher Bahadar Khan, Esraa M. Bakhsh, Yasir Anwar
Summary: This research work successfully synthesized CMC-AgCo nanoparticles and applied them to catalyze the reduction of organic nitroaromatic pollutants. The CFP/CMC-AgCo catalyst showed good catalytic performance and ease of recycling, with excellent reduction effects on both nitroaromatic compounds.
