Chemistry - An Asian Journal最新文献

Mixed Perovskite Phases of BaTiO3/BaTi5O11 for efficient Electrochemical Reduction of CO2 to CO. BaTiO3/BaTi5O11 混合包晶相用于将 CO2 高效电化学还原为 CO。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-19 DOI: 10.1002/asia.202401017

Phiralang Marbaniang, Dilip Kumar Tiwari, Sagar Ingavale, Deep Lata Singh, Gangavarapu Ranga Rao

{"title":"Mixed Perovskite Phases of BaTiO3/BaTi5O11 for efficient Electrochemical Reduction of CO2 to CO.","authors":"Phiralang Marbaniang, Dilip Kumar Tiwari, Sagar Ingavale, Deep Lata Singh, Gangavarapu Ranga Rao","doi":"10.1002/asia.202401017","DOIUrl":"https://doi.org/10.1002/asia.202401017","url":null,"abstract":"One of the most promising approaches in solving the energy crisis and reducing atmospheric CO2 emissions is artificial photosynthetic CO2 reduction. The electrochemical method for CO2 reduction is more appealing since it can be operated under ambient conditions, and the product selectivity strongly depends on the applied potential. Perovskites with ferroelectric properties strongly adsorb linear CO2 molecules. In this study, barium titanate (BaTiO3) perovskite is used as an electrocatalyst to promote CO2 activation and conversion to CO. Perovskite catalysts were prepared by ball-milling followed by annealing at 900 °C for 4 to 6 h in an open atmosphere. The TEM and SEM study shows that the particle size varies in the range of 80-200 nm. Mixed phases of BaTiO3 and BaTi5O11 supported on nitrogen-doped carbon nanotubes are found to be highly active for electrocatalytic CO2 reduction to CO with maximum Faradaic efficiency of 89.4% at -1.0 V versus Ag/AgCl in CO2 saturated 0.5 KOH solution. This study concludes that mixed phases of BaTiO3 and BaTi5O11 are more active and highly selective for CO2 conversion to CO compared to single-phase BaTiO3.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401017"},"PeriodicalIF":3.5,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anion Coordination Chemistry: An Expedition Towards Designing of Functional Materials. 阴离子配位化学：设计功能材料的探索之旅。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-18 DOI: 10.1002/asia.202401236

Oiyao Appun Pegu, Rubi Moral, Gopal Das

引用次数: 0

Modulating electronic structure of amorphous indium oxide for efficient formate synthesis towards CO2 electroreduction. 调节无定形氧化铟的电子结构，实现二氧化碳电还原的高效甲酸酯合成。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-18 DOI: 10.1002/asia.202401231

Yuanxiang Gao, Zhengwu Yang, Jiankang Zhao, Xiangdong Kong, Zhigang Geng

{"title":"Modulating electronic structure of amorphous indium oxide for efficient formate synthesis towards CO2 electroreduction.","authors":"Yuanxiang Gao, Zhengwu Yang, Jiankang Zhao, Xiangdong Kong, Zhigang Geng","doi":"10.1002/asia.202401231","DOIUrl":"https://doi.org/10.1002/asia.202401231","url":null,"abstract":"Tuning the electronic structure of catalysts is an efficient approach to optimize the catalytic performance of CO2 electroreduction. Herein, we constructed an efficient catalyst consisted of amorphous InOX with cottonlike structure spreading on N doped carbon (N-C) substrate to extend the catalysts-substrate interfaces for enhancing electron-transfer effect. The amorphous InOX growing on N-C substrate (InOX/N-C) exhibited an improved current density of -34.4 mA cm-2. Notably, a faradaic efficiency for formate (HCOO-) over the amorphous InOX/N-C reached 79.6% at -1.0 V versus reversible hydrogen electrode, 1.8 times as high as that (44.2%) over the amorphous InOX growing on carbon black substrate. Mechanistic studies revealed that the introduction of N-C as substrates accelerated charge-transfer process on the catalytic surface of InOX/N-C. Density functional theory calculations further revealed that the interactions between N-C substrate and InOX not only facilitated the potential-determining *HCOO protonation, but also inhabited hydrogen evolution, thus improving the catalytic performance for the production of HCOO-.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401231"},"PeriodicalIF":3.5,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis, Characterization, and Thin-Film Properties of Post-Functionalized N,N-Dimethylanilinoethynyl-Substituted Cyclobutenofullerenes. 后官能化 N,N-二甲基苯胺基乙炔基取代环丁烯富勒烯的合成、表征和薄膜特性。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-18 DOI: 10.1002/asia.202401111

Michio Yamada, Haruki Sakuma, Waner He, Hiromichi Araki, Yutaka Maeda, Mitsuaki Suzuki, Tsuyoshi Michinobu

{"title":"Synthesis, Characterization, and Thin-Film Properties of Post-Functionalized N,N-Dimethylanilinoethynyl-Substituted Cyclobutenofullerenes.","authors":"Michio Yamada, Haruki Sakuma, Waner He, Hiromichi Araki, Yutaka Maeda, Mitsuaki Suzuki, Tsuyoshi Michinobu","doi":"10.1002/asia.202401111","DOIUrl":"https://doi.org/10.1002/asia.202401111","url":null,"abstract":"A π-extended cyclobutenofullerene containing an N,N-dimethylanilinoethynyl group was synthesized via a one-pot cascade reaction of C60 with the corresponding propargylic phosphate. The cyclobutenofullerene was further modified using either one-pot or sequential post-functionalization methods, yielding derivatives containing altered addend structures. During one-pot post-functionalization, hydration reaction of the alkyne moiety continued after the formation of cyclobutenofullerenes. The sequential post-functionalization approach involved introducing the tetracyanobutadiene structure through formal [2 + 2] cycloaddition and a subsequent retroelectrocyclization reaction with tetracyanoethylene. The electronic and optical properties of the derivatives in solution, as well as their field-effect transistor behavior in thin films, were thoroughly assessed to elucidate the optoelectronic differences arising from various addend structures. The properties of the three characteristic cyclobutenofullerene derivatives in the solution and thin films significantly varied depending on the addends. Among the three derivatives studied, only cyclobutenofullerene, featuring a folded structure induced by the hydration of the alkyne moiety, exhibited n-type semiconductor behavior in the thin films. The findings of this study present a novel methodology for synthesizing and functionalizing fullerene derivatives, together with a conceptual framework for tailoring molecular properties.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401111"},"PeriodicalIF":3.5,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Substrate-Dependent Stereoselective Synthesis of Pyrrolo[3,4-b]pyridin-5-ones and Pyridyl-isoindoline-1-ones using Bis(benzotriazol-1-yl) Ligand. 使用双（苯并三唑-1-基）配体合成吡咯并[3,4-b]吡啶-5-酮和吡啶基异吲哚啉-1-酮的底物依赖性立体选择性合成。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-18 DOI: 10.1002/asia.202401301

Vinod K Tiwari, Mangal S Yadav, Manoj K Jaiswal, Sunil Kumar, Sumit K Singh, Somenath Garai

引用次数: 0

Synergistic coupling effect and anionic modulation of CoFeLDH@MXene for triggered and sustained alkaline water/seawater electrolysis. 用于触发和持续碱性水/海水电解的 CoFeLDH@MXene 的协同耦合效应和阴离子调制。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-18 DOI: 10.1002/asia.202401295

Xiaojie Zhang, Shixue Song, Minglong Xia, Yi Feng

引用次数: 0

Molecular Imprinting as a Tool for Exceptionally Selective Gas Separation in Nanoporous Polymers. 将分子印迹技术作为纳米多孔聚合物中特殊选择性气体分离的工具。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-17 DOI: 10.1002/asia.202401205

Jaewoo Park, Minji Jung, Sally E A Elashery, Hyunchul Oh, Nour F Attia

{"title":"Molecular Imprinting as a Tool for Exceptionally Selective Gas Separation in Nanoporous Polymers.","authors":"Jaewoo Park, Minji Jung, Sally E A Elashery, Hyunchul Oh, Nour F Attia","doi":"10.1002/asia.202401205","DOIUrl":"https://doi.org/10.1002/asia.202401205","url":null,"abstract":"The alarming increase in atmospheric CO2 levels, driven by fossil fuel combustion and industrial processes, is a major contributor to climate change. Effective technologies for selective CO2 removal are urgently needed, especially for industrial gas streams like flue gas and biogas, which contain impurities such as N2 and CH4. In this study, we designed and synthesized molecularly imprinted polymers (MIPs) using 4-vinylpyridine(4VP) and methacrylic acid(MAA) as functional monomers, and thiophene(Th) and formaldehyde(HC) as molecular templates. The MIPs were engineered to create selective molecular cavities within a nanoporous polymer matrix for efficient CO2 capture. By adjusting the molar ratios of the template to the functional monomers, we optimized the imprinting process to enhance CO2 selectivity over N2&CH4. The resulting MIPs exhibited excellent performance, achieving a maximum CO2/N2 selectivity of 153 at 25 bar and CO2/CH4 selectivity of 25.3 at 1 bar, significantly surpassing previously reported porous polymers and metal-organic frameworks(MOFs) under similar conditions. Heat of adsorption studies confirmed the strong and selective interaction of CO2 with the imprinted cavities, demonstrating the superior adsorption properties of the synthesized MIPs. This study highlights the potential of molecular imprinting for improving CO2 capture capacity and selectivity, offering a scalable solution for industrial CO2 separation.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401205"},"PeriodicalIF":3.5,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Injectable Hydrogels for Liver: Potential for Clinical Translation. 肝脏注射水凝胶：临床转化的潜力。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-17 DOI: 10.1002/asia.202401106

Ashwini Vasudevan, Doyel Ghosal, Sita Ram Sahu, Narsing Kumar Jha, Pooja Vijayaraghavan, Sachin Kumar, Savneet Kaur

引用次数: 0

Revealing the Dual Role of Ammonia in the Hydroxide Co-precipitation Synthesis of Cobalt-free Nickel-rich LiNi0.9Mn0.05Al0.05O2 (NMA955) Cathode Materials for Lithium-ion Batteries. 揭示氨在氢氧化物共沉淀合成无钴富镍 LiNi0.9Mn0.05Al0.05O2 (NMA955) 锂离子电池正极材料中的双重作用

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-14 DOI: 10.1002/asia.202401080

Jijim Fadilla Warman, Jotti Karunawan, Octia Floweri, Putri Nadia Suryadi, Sigit Puji Santosa, Ferry Iskandar

{"title":"Revealing the Dual Role of Ammonia in the Hydroxide Co-precipitation Synthesis of Cobalt-free Nickel-rich LiNi0.9Mn0.05Al0.05O2 (NMA955) Cathode Materials for Lithium-ion Batteries.","authors":"Jijim Fadilla Warman, Jotti Karunawan, Octia Floweri, Putri Nadia Suryadi, Sigit Puji Santosa, Ferry Iskandar","doi":"10.1002/asia.202401080","DOIUrl":"https://doi.org/10.1002/asia.202401080","url":null,"abstract":"Nickel-rich cobalt-free LiNi0.9Mn0.05Al0.05O2 (NMA955) is considered a promising cathode material to address the scarcity and soaring cost of cobalt. Particle size and elemental composition significantly impact the electrochemical performance of NMA955 cathodes. However, differences in precipitation rates among metal ions coveys a challenge in obtaining cathode materials with the desired particle size and composition via hydroxide co-precipitation synthesis. Utilizing complexing agents like ammonia offers an effective strategy to tackle these issues. Here, we investigate the optimal ammonia concentration to achieve moderate particle size and precise material composition. Although ammonia only forms complex coordination with transition metals, its concentration also affects the final product's precipitation and composition, including aluminum. This study shows that ammonia serves a dual function in NMA synthesis via hydroxide co-precipitation, i.e., regulating particle size and adjusting elemental composition. It was found that an ammonia concentration of 1.2 M achieved optimal particle size and composition, resulting in superior electrochemical performance. NMA955 synthesized in 1.2 M ammonia demonstrated a high specific capacity of 188.12 mAh g-1 at 0.1C, retained 71.16% of its capacity after 200 cycles at 0.2C, and delivered 110.30 mAh g-1 at 5C. These results suggest tuning ammonia concentration is crucial for producing high-performance cathode materials.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401080"},"PeriodicalIF":3.5,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142613356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Protein-based 2D Nanoarchitectures Constructed by Heterochiral π-Stacking Dimerization of Helical Foldamers. 通过螺旋折叠体的异手性π-堆叠二聚化构建基于蛋白质的二维纳米结构。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-14 DOI: 10.1002/asia.202401271

Wencan Li, Yunpeng Ge, Zhenzhu Wang, Chenyang Zhang, Changqing Zhang, Jiaxin Chen, Zeyuan Dong

{"title":"Protein-based 2D Nanoarchitectures Constructed by Heterochiral π-Stacking Dimerization of Helical Foldamers.","authors":"Wencan Li, Yunpeng Ge, Zhenzhu Wang, Chenyang Zhang, Changqing Zhang, Jiaxin Chen, Zeyuan Dong","doi":"10.1002/asia.202401271","DOIUrl":"https://doi.org/10.1002/asia.202401271","url":null,"abstract":"In this study, we focus on the designability and controllability of the interaction interface between secondary structures, and discover an important interface interaction between helical secondary structures by non-covalent synthesis along the helical axis. The formation of discrete heterochiral dimers consisting of left-handed helix and right-handed helix not only helps to discover nonclassical supramolecular chirality phenomena, but also enables controllable protein assembly. Highly ordered nanostructures were thus constructed using p-stacking dimerization of helical foldamers to control tetrameric avidin proteins. The designable and modifiable primitives of artificial folded molecules enable the modification of secondary structure interfaces through non-covalent interactions, leading to the generation of unique structures and functions. These findings are of fundamental importance to the understanding of the precise assembly process of helical foldamers and can provide insights to facilitate the rational design of abiotic protein-like tertiary structures and further functionalization.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401271"},"PeriodicalIF":3.5,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142613354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0