Article
Chemistry, Multidisciplinary
Hengyu Li, Qiang Wan, CongCong Du, QiuNan Liu, Jiamin Qi, Xingyu Ding, Shuai Wang, Shaolong Wan, Jingdong Lin, Chen Tian, Lina Li, Tao Peng, Wei Zhao, Kelvin H. L. Zhang, Jianyu Huang, Xiaoben Zhang, Qingqing Gu, Bing Yang, Hua Guo, Sen Lin, Abhaya K. Datye, Yong Wang, Haifeng Xiong
Summary: In this study, a modified support MgAl2O4 is used to stabilize Pt single atoms through a mechanism of vapor-phase self-assembly in high-temperature treatment. The formation mechanism and structure are validated through simulations. The obtained Pt/K/MgAl2O4 SAC shows excellent stability and reactivity in methane oxidation, providing a new approach for preparing thermally stable and highly active SACs using conventional high-surface-area supports.
Article
Chemistry, Multidisciplinary
Haifeng Xiong, Abhaya K. Datye, Yong Wang
Summary: This article discusses recent advances in the development of thermally durable single-atom heterogeneous catalysts, describes several important preparation approaches for thermally stable SACs, and discusses the fundamental understanding of the coordination structures of thermally stable single atom prepared by these methods. The catalytic performances of these thermally stable SACs, including their activity and stability, are reviewed. Finally, a perspective of this important and rapidly evolving research field is provided.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Huaxu Shao, Yike Huang, Huinan Guo, Yafei Liu, Yusang Guo, Yijing Wang
Summary: The utilization of tricarboxybenzene to construct stable Ni MOF catalyst for MgH2 improves the kinetics and cycle stability of the composite, enabling quick hydrogen desorption and retaining high capacity after multiple cycles.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Multidisciplinary Sciences
Bing Wang, Weigui Liu, Yecheng Leng, Xiwen Yu, Cheng Wang, Lianghe Hu, Xi Zhu, Congping Wu, Yingfang Yao, Zhigang Zou
Summary: Developing active and cost-effective bifunctional electrocatalysts for overall water splitting is challenging but necessary for renewable energy technologies. In this study, a high-entropy alloy of PtIrCuNiCr was reported as a bifunctional electrocatalyst for overall water splitting, showing low overpotential and superior electrocatalytic activity. The strain effect of the high-entropy alloy on electrocatalysis can be well engineered by adjusting the catalyst radius or configurational entropy. This work provides a systematic strain regulation strategy for designing high-performance high-entropy alloy catalysts for overall water splitting.
Article
Chemistry, Multidisciplinary
Sixu Liu, Jiwei Li, Haifeng Xiong
Summary: This article summarizes recent progress in the synthesis of thermally-stable SACs, including atom trapping and vapor-phase self-assembly methods, at elevated temperatures. The reducibility of lattice oxygen, loading upper limit, and location of the metal single atom are discussed in combination with experimental and simulation studies. Moreover, the study demonstrates that the coordination structure of the metal single atom can be tailored to optimize the catalytic performance of SACs.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Applied
M. Arkas, M. Douloudi, E. Nikoli, G. Karountzou, I Kitsou, E. Kavetsou, D. Korres, S. Vouyiouka, A. Tsetsekou, K. Giannakopoulos, M. Papageorgiou
Summary: In this study, silver nanoparticles were synthesized using PEI as a template and immobilized on silica substrates to create hybrid nanocatalysts. The effects of different PEIs and pH regulators were investigated, and the catalytic performance was improved through organic scaffold pyrolysis. This eco-friendly synthesis procedure proved to be a successful alternative for producing multifunctional nanomaterials at ambient temperature.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Polymer Science
Alexandra L. Nikolaeva, Alexander N. Bugrov, Maria P. Sokolova, Elena M. Ivan'kova, Ivan Abalov, Elena N. Vlasova, Iosif Gofman
Summary: By studying the fabrication and characterization of polyimide/metal oxide nanocomposite films, we have identified trends in the functional properties of these materials based on factors such as the type, size, concentration of the nanofiller, and the chemical structure of the matrix polyimide.
Review
Environmental Sciences
Chenglin Feng, Xiaolong Liu, Tingyu Zhu, Mengkui Tian
Summary: This article reviews recent research on the application of noble metal catalysts in the catalytic oxidation of CO, summarizing the effects of catalyst support, dopant, and physicochemical properties on the catalytic activity for CO oxidation. It emphatically discusses the influence of water vapor and sulfur dioxide on the catalytic activity in CO oxidation and presents several reaction mechanisms of CO catalytic oxidation on noble metal catalysts. Finally, the challenges of removing CO by catalytic oxidation in practical industrial flue gas are proposed.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Wenbo Dong, Yi Yang, Yonggang Xiang, Shengyao Wang, Pei Wang, Jianxiang Hu, Li Rao, Hao Chen
Summary: The newly designed dual nickel/photocatalysis 2D covalent organic framework (COF) has successfully overcome the difficulties of recycling photosensitizers or nickel complexes, efficiently converting aryl bromides to aryl alkyl ethers with good substrate compatibility and functional group tolerance.
Article
Polymer Science
Sara Blilid, Mohamed Boundor, Nadia Katir, Mounir El Achaby, Mohammed Lahcini, Jean Pierre Majoral, Mosto Bousmina, Abdelkrim El Kadib
Summary: Chitosan, extracted from marine crustacean waste, is a versatile building block for functional nanomaterials. Traditional reticular chemistry using glutaraldehyde as a cross-linker has limitations due to its toxicity and chemistry. In this study, we explored the use of phosphorus-containing dendrimers to cross-link chitosan, resulting in flexible and functional bioplastics. The cross-linking delayed degradation, increased char residue, and reduced heat release rate of the plastics. Furthermore, the transparent films could encapsulate Congo red dye and gold nanoparticles, expanding their applications as multifunctional sensors, flame retardants, and biofoulants.
Article
Chemistry, Multidisciplinary
Bo Wei, Zhongheng Fu, Dominik Legut, Timothy C. Germann, Shiyu Du, Haijun Zhang, Joseph S. Francisco, Ruifeng Zhang
Summary: Designing highly active and bifunctional oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) catalysts with non-noble metals such as Fe/Co/Ni on MXene surfaces has shown superior performance compared to traditional unifunctional catalysts, providing a novel pathway for tunable catalytic behavior in MXenes. The electronic structure analyses revealed that the excellent catalytic activities in MXene-based DACs are attributed to the electron-capturing capability and synergistic interactions between Fe/Co/Ni adsorbents and MXene substrate. These findings not only suggest promising candidates for MXene-based bifunctional ORR/OER catalysts but also offer new theoretical insights into rationally designing noble-metal-free bifunctional DACs.
ADVANCED MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Bing Zhang, Xiaojue Bai, Sha Wang, Linlin Li, Xuemin Li, Fuqiang Fan, Tieqiang Wang, Liying Zhang, Xuemin Zhang, Yunong Li, Yunling Liu, Junyi Chen, Fanbao Meng, Yu Fu
Summary: In this study, highly hydrophobic MOF/polymer composites were fabricated through a post-synthetic polymerization strategy, demonstrating superior water resistance and catalytic selectivity. This synthetic approach opens up a new pathway for designing unique catalysts with outstanding catalytic efficiency, selectivity, and stability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Inorganic & Nuclear
Xiao-Lin Liu, Xiao-Yi Zhang, Hai-Xia Zhao, La-Sheng Long, Lan-Sun Zheng
Summary: This study constructed a linear Cu-3 compound with a multi-center donor-acceptor architecture using a redox-active chloranilic acid quinoid ligand and demonstrated the effectiveness of dielectric measurement in detecting charge transfer.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Marcos Gil-Sepulcre, Pablo Garrido-Barros, Jan Oldengott, Ignacio Funes-Ardoiz, Roger Bofill, Xavier Sala, Jordi Benet-Buchholz, Antoni Llobet
Summary: This study presents a new family of water oxidation catalyst ligands, and provides experimental and computational evidence supporting an all ligand-based process occurring at pH 11.6.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Wang Jianchen, Kang Yong, Fangkuan Sun
Summary: Single-atom catalysts have attracted significant attention due to their 100% atom utilization and potential to bridge the gap between homogeneous and heterogeneous catalysis. By calcining a physical mixture of commercial PtO2 powders and Fe-containing supports at high temperature, Pt SACs with excellent thermal stability and catalytic activity can be synthesized.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Energy & Fuels
Koorosh Firouz Tadavani, Amir Abdolmaleki, Mohammad Reza Molavian, Mohammad Zhiani
Article
Agricultural Engineering
Marzieh Mohammadi, Marzieh Shafiei, Amir Abdolmaleki, Keikhosro Karimi, Jyri-Pekka Mikkola, Christer Larsson
INDUSTRIAL CROPS AND PRODUCTS
(2019)
Article
Materials Science, Multidisciplinary
Mohammad Reza Molavian, Amir Abdolmaleki, Koorosh Firouz Tadavani, Kiamars Eskandari
MATERIALS TODAY COMMUNICATIONS
(2020)
Article
Polymer Science
Parisa Kamalian, Saied Nouri Khorasani, Amir Abdolmaleki, Mehdi Karevan, Shahla Khalili, Mohammad Shirani, Rasoul Esmaeely Neisiany
JOURNAL OF POLYMER ENGINEERING
(2020)
Article
Polymer Science
Razieh Farhadi, Hossein Tavanai, Amir Abdolmaleki, Amir Shahin Shamsabadi
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2020)
Article
Dentistry, Oral Surgery & Medicine
Mohammad Ali Saghiri, Sahar Dadvand, Amir Abdolmaleki
Summary: This study compared the physical properties of different endodontic sealers and found that EndoSequence and PES (controlled expansion) showed comparable physical properties to AH Plus sealer in terms of flow, setting time, and radiopacity.
AUSTRALIAN ENDODONTIC JOURNAL
(2021)
Article
Engineering, Chemical
Koorosh Firouz Tadavani, Amir Abdolmaleki, Mohammad Reza Molavian, Mohammad Zhiani
Summary: New anion-exchange membranes based on poly(benzimidazolium-imide) containing triazolium groups were prepared using click chemistry for triazolium groups and cross-linking simultaneously. Two different cross-linked membranes with a hydrophilic cross-linker (Q-CLP1) and a hydrophobic cross-linker (Q-CLP2) were tested for mechanical properties. Q-CLP1 showed higher tensile stress due to the rigidity of the aromatic cross-linker, while Q-CLP2 had more fixability and tensile strain due to the aliphatic cross-linker.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Polymer Science
Amir Abdolmaleki, Hamidreza Gharibi, Mohammad Reza Molavian, Mohammad-Reza Norouzi, Narges Asefifeyzabadi
Summary: By combining two polymers, this study successfully prepared thermosensitive double network hydrogels with superior mechanical properties, lowering the complexity of adjusting temperature sensitivity by regulating the hydrophilic/hydrophobic composition. These hydrogels exhibit non-Fickian and super case Iota Iota transport characteristics, and can release drugs in a relaxed manner.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Green & Sustainable Science & Technology
Amir Abdolmaleki, Sayed Sajad Nabavizadeh, Mehran Badbedast
Summary: The use of acidic ionic liquid for pretreatment of rice straw showed superior enzymatic hydrolysis and enhanced ethanol production. Optimal production parameters were determined through comparisons under different operating conditions.
Article
Chemistry, Multidisciplinary
Mehran Badbedast, Amir Abdolmaleki, Dariush Khalili
Summary: Synthesis of pyranopyrazoles using heterogeneous catalysts is a commonly used method in organic chemistry. In this study, magnetite dopamine-supported copper nanoparticles were prepared and characterized. The Fe3O4@PDA/CuCl2 system demonstrated good catalytic activity and can be reused.
Article
Chemistry, Physical
Fereshteh Norouzi, Amir Abdolmaleki
Summary: Ionic liquids are efficient catalysts with non-toxic, biodegradable, non-volatile, and low-cost properties for the synthesis of cyclic organic carbonates. The synthetic catalyst exhibited high conversion and selectivity under mild conditions without the need for co-catalyst, metal, or solvent. It could also be recycled multiple times before losing its catalytic activity.
MOLECULAR CATALYSIS
(2023)
Article
Materials Science, Multidisciplinary
Hatam Najafi Fath Dehghan, Amir Abdolmaleki, Mohammad Zhiani
Summary: In this study, two new anion exchange polymers were synthesized to prepare high ionic conductivity membranes for electrolyzers and fuel cells. The membranes showed high ion conductivity in both water and KOH solutions. This research provides solutions for the drawbacks of the membrane-based alkaline electrolyzer and fuel cell system.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Koorosh Firouz Tadavani, Amir Abdolmaleki, Hatam Najafi Fath Dehghan, Mohammad Reza Molavian, Mohammad Zhiani
Summary: The main issues with anion exchange membranes (AEMs) are their low ionic conductivity and their inability to retain ion conductivity. This study presents the development of a series of multication AEMs to address these issues, with the most significant innovation being the synthesis of a multication AEM modified with cyclohexyl ammonium (QPE-MCy/OH-). The QPE-MCy-40/OH- membrane exhibits exceptional alkaline stability and ionic conductivity.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Multidisciplinary Sciences
Amir Abdolmaleki, Manzar Mahmoudian
