Chemistry - An Asian Journal最新文献_第8页

Transition Metal Complexes Containing Selenium Ligands for Catalytic Reduction, Oxidation, and Hydrofunctionalization Reactions. 含硒配体的过渡金属配合物用于催化还原、氧化和加氢功能化反应。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-20 DOI: 10.1002/asia.202401431

Atul Kumar Maurya, Mohd Farhan Ansari, Saravanakumar Elangovan

引用次数: 0

Influence of Cu₂O Precursor Surface Orientation on Catalytic Performance and Product Selectivity in Nitrate Reduction Reactions. 硝酸还原反应中Cu2O前驱体表面取向对催化性能和产物选择性的影响

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-20 DOI: 10.1002/asia.202401796

Toshihiro Takashima, Takumi Mochida, Kaito Sugamata, Tetsuya Yamagishi, Hiroshi Irie

{"title":"Influence of Cu2O Precursor Surface Orientation on Catalytic Performance and Product Selectivity in Nitrate Reduction Reactions.","authors":"Toshihiro Takashima, Takumi Mochida, Kaito Sugamata, Tetsuya Yamagishi, Hiroshi Irie","doi":"10.1002/asia.202401796","DOIUrl":"10.1002/asia.202401796","url":null,"abstract":"Oxide-derived copper (OD-Cu) has attracted considerable attention due to its exceptional electrocatalytic performance toward various reactions, including the reduction of nitrate (NO3 -) to ammonia (NH3). Furthermore, numerous techniques have been developed to synthesize copper oxides with well-defined surface orientations. However, the relationship between the surface orientation of the precursor and the NO3 - reduction performance of the resulting OD-Cu catalyst remains unclear. In this study, two types of OD-Cu electrodes, prepared by reducing copper oxide (Cu2O) with exposed (100) and (111) facets grown on Cu substrates, were employed for NO3 - reduction. The OD-Cu catalyst derived from Cu2O(111) exhibited a lower overpotential for initiating NO3 - reduction and achieved a higher current density compared to the catalyst derived from Cu2O(100). Conversely, the catalyst prepared from Cu2O(100) demonstrated superior Faradaic efficiency for NH3 production. These differences are attributed to variations in the preferential reaction steps of NO3 - reduction on each catalyst.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401796"},"PeriodicalIF":3.5,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997066","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

Delayed Fluorescence in Dual-Doped Perovskite Nanocrystals: Insight into the Role of Dopants. 双掺杂钙钛矿纳米晶体中的延迟荧光：掺杂剂的作用。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-20 DOI: 10.1002/asia.202401161

Prasenjit Mandal, Soumya Panja, Ranjani Viswanatha

引用次数: 0

Efficient Capture of ReO₄ ^- from Water by Imidazolium-Based Cationic Polymeric Nanotraps. 咪唑基阳离子聚合物纳米捕集器在水中高效捕集ReO4-。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-20 DOI: 10.1002/asia.202401419

Xiaorui Li, Wenping Liu, Haiying Wang, Yingjie He, Wei Liu, Huan Li, Linfeng Jin, Changqing Su, Yiming Li, Thamraa AlShahrani, Shengqian Ma

{"title":"Efficient Capture of ReO4 - from Water by Imidazolium-Based Cationic Polymeric Nanotraps.","authors":"Xiaorui Li, Wenping Liu, Haiying Wang, Yingjie He, Wei Liu, Huan Li, Linfeng Jin, Changqing Su, Yiming Li, Thamraa AlShahrani, Shengqian Ma","doi":"10.1002/asia.202401419","DOIUrl":"10.1002/asia.202401419","url":null,"abstract":"Rhenium represents an irreplaceable metal resource, which finds extensive applications in diverse fields, particularly in the aerospace and petrochemical industry. However, its remarkably low natural abundance and the lack of independent ore deposits pose significant challenges to its extraction and recovery processes. In this study, we present the highly efficient adsorption of perrhenate by a cationic polymeric nanotrap material, namely CPN-3VIm. The maximum adsorption capacity of CPN-3VIm-Cl for ReO4 - attains an impressive value of 1220 mg ⋅ g-1. Notably, even in the low-concentration ReO4 - solution of 8.5 ppm, the removal rate could still exceed 99 %. The recycling performance of CPN-3VIm-Cl also shows exceptional results, with both ReO4 - removal and recovery rates surpassing 90 % throughout five adsorption-desorption cycles. Furthermore, CPN-3VIm-Cl exhibits nearly 100 % extraction efficiency for ReO4 - within a broad pH range of 4-10 and demonstrates remarkable structural stability under extreme conditions, such as 3 M sulfuric acid or 3 M nitric acid. Additionally, a comprehensive investigation into the interaction mechanism between CPN-3VIm-Cl and perrhenate was carried out using SEM-EDS mapping, Raman, FT-IR, and XPS analysis.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401419"},"PeriodicalIF":3.5,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997060","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

Optimization of Polymers for Organic Solar Cells: Effects of Alkyl, Fluorinated and Thiophenated Chains. 有机太阳能电池聚合物的优化：烷基链、氟链和噻吩链的影响。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-20 DOI: 10.1002/asia.202401406

Kalsum Ahmad Mustamin, Mohd Sani Sarjadi, Shaheen M Sarkar, Sandeep Kumar, Md Lutfor Rahman

{"title":"Optimization of Polymers for Organic Solar Cells: Effects of Alkyl, Fluorinated and Thiophenated Chains.","authors":"Kalsum Ahmad Mustamin, Mohd Sani Sarjadi, Shaheen M Sarkar, Sandeep Kumar, Md Lutfor Rahman","doi":"10.1002/asia.202401406","DOIUrl":"10.1002/asia.202401406","url":null,"abstract":"This paper explores optimization strategies for polymeric materials in organic solar cells (OSCs) with the focus on varying alkyl side chain, addition of fluorine atom, and thiophenated derivatives onto polymer. As such, it outlines the significance of renewable energy sources and the potential of photovoltaic technologies, particularly organic photovoltaics (OPVs). Objectives include factors affecting power conversion efficiency (PCE), open-circuit voltage (Voc), aggregation tendencies, and optoelectronic properties in OPVs. The scope encompasses the impact of alkyl as well as the comparison between fluorinated and chlorinated polymers and the role of thiophene units to obtain an efficient organic solar cell. The review examines how alkyl chain structures influence thin film morphology, packing, and device performance, comparing linear and branched configurations. It also explores the role of halogenated polymers in modifying electronic properties and stability, focusing on the comparative performance between fluorinated and chlorinated polymers. The importance of thiophene units in polymer design for OPVs is discussed, along with performance comparisons based on different architectures. The paper summarizes key findings regarding the impact of various side chain modifications for OPVs device performance and outlines future research directions to enhance efficiency, stability, and scalability. It suggests exploring novel material design to further optimize OSCs.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401406"},"PeriodicalIF":3.5,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997072","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

Nanoarchitectonics for Regulating Molecular Conductance by Multi-Channel Structure. 多通道结构调控分子电导的纳米结构。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-20 DOI: 10.1002/asia.202401774

Hui-Xin Li, Jiao-Yang Liu, Bi-Jun Geng, Sheng-Jie Qiu, Zhong-Ning Chen, Yang Yang, Qian-Chong Zhang

{"title":"Nanoarchitectonics for Regulating Molecular Conductance by Multi-Channel Structure.","authors":"Hui-Xin Li, Jiao-Yang Liu, Bi-Jun Geng, Sheng-Jie Qiu, Zhong-Ning Chen, Yang Yang, Qian-Chong Zhang","doi":"10.1002/asia.202401774","DOIUrl":"https://doi.org/10.1002/asia.202401774","url":null,"abstract":"Molecular electronics represent the cutting-edge and interdisciplinary effort on the future miniaturization of electronic circuits. Benefiting from synthetic chemistry and theoretical insights, molecular circuit studies have promoted devices with increasingly complicated structures. Especially, the evolution of conductive backbones from simple chain-shape single-channel configurations to complex multi-channel architectures marks a pivotal progression. A comprehensive understanding of charge transport and conductance properties in multi-channel molecular devices is crucial for further developing molecular circuits. In this review, we provide an overview of conductance properties, categorizing the influence on conductance as either enhancement or suppression. The underlying mechanisms of conductance modulation are discussed as conductance enhancement attributed to factors of the quantum-interference-based superposition law, the charge-induced self-gating effect, and the facilitation of additional conductive channels through through-space transport; while the conductance suppression originates from the destructive quantum interference in saturated conductive channels and the \"electron selective transport\" feature within multi-channel structure exhibiting the channels converging on a phenyl group.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401774"},"PeriodicalIF":3.5,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997069","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

Mesoporous Fe₂O₃-TiO₂ Integrated with Plasmonic Ag Nanoparticles for Enhanced Solar H₂ Production. 介孔Fe2O3-TiO2与等离子体银纳米粒子集成增强太阳能制氢

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-19 DOI: 10.1002/asia.202401664

Sunesh S Mani, Sivaraj Rajendran, Simi Saju, Bindhya M Babu, Thomas Mathew, Chinnakonda S Gopinath

{"title":"Mesoporous Fe2O3-TiO2 Integrated with Plasmonic Ag Nanoparticles for Enhanced Solar H2 Production.","authors":"Sunesh S Mani, Sivaraj Rajendran, Simi Saju, Bindhya M Babu, Thomas Mathew, Chinnakonda S Gopinath","doi":"10.1002/asia.202401664","DOIUrl":"10.1002/asia.202401664","url":null,"abstract":"Present work describes a sol-gel assisted one-pot synthesis of mesoporous Fe₂O₃-TiO₂ nanocomposites (TiFe) with different Ti : Fe ratios, and fabrication of Ag-integrated with TiFe nanocomposites (TiFeAg) by a chemical reduction method and demonstrated for high solar H2 generation activity in direct sunlight. Enhanced solar H2 production is attributed to the light absorption from entire UV+Visible region of solar spectrum combined with Schottky (Ag-semiconductor) and heterojunctions (TiO2-Fe2O3), as evidenced from HRTEM and various characterization studies. TiFeAg-2 thin film (1 wt % Ag-loaded TiFe-4) displayed the highest activity with a solar H2 yield of 7.64 mmol h-1g-1, which is 48 times higher than that of bare TiO₂ and 5 times higher in thin film form compared to its powder counterpart. Schottky and heterojunctions formed at the interface efficiently separate the charge carriers and increase the hydrogen production activity. The highest H2 production activity of TiFeAg-2 is partly attributed to the heterogeneous distribution of Fe3+ and metallic Ag-species with relatively high Ag/Ti surface atomic ratio. A plausible photocatalytic reaction mechanism on TiFeAg nanocomposite may involve the direct electron transfer from both Fe2O3 and TiO2 to Ag nanoparticles which are subsequently utilized for the reduction of H+ to H2.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401664"},"PeriodicalIF":3.5,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997068","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

Phenolic Resin-type Microporous Organic Polymers for High-Performance Carbon Dioxide Adsorption. 高性能碳捕获用酚醛树脂型微孔有机聚合物。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-19 DOI: 10.1002/asia.202401288

Liting Yang, Peiyu Cai, Xuance Jin, Zhengjie Wang, Hong-Cai Zhou, Ning Huang

引用次数: 0

CBr₄-Catalyzed Substituent-Dependent Michael Addition/Paal-Knorr Cyclization of Indole with α,β-Unsaturated Ketones. cbr4催化取代基依赖性吲哚与α，β-不饱和酮的Michael加成/Paal-Knorr环化。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-19 DOI: 10.1002/asia.202401445

Gargi Singh, Venkatachalam Rajeshkumar

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Front Cover: A New Bis-Urea Based Cage Receptor for Anions: Synthesis, Solid State Structures and Binding Studies (Chem. Asian J. 2/2025)

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-17 DOI: 10.1002/asia.202580201

Daniele Paderni, Mauro Formica, Eleonora Macedi, Luca Giorgi, Patrizia Rossi, Michele Retini, Nicola De Cata, Giovanni Zappia, Giovanni Piersanti, Vieri Fusi

引用次数: 0