Chemistry - An Asian Journal最新文献_第2页

BODIPY-Helicene Based Heavy-Atom-Free Photocatalyst for Oxidative Coupling of Amines and Photooxidation of Sulfides. 基于 BODIPY-Helicene 的无重金属光催化剂用于胺的氧化偶联和硫化物的光氧化。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-09 DOI: 10.1002/asia.202400975

Mrunesh Koli, Sunita Gamre, Rajib Ghosh, A P Wadawale, Ayan Ghosh, Tapan K Ghanty, Soumyaditya Mula

{"title":"BODIPY-Helicene Based Heavy-Atom-Free Photocatalyst for Oxidative Coupling of Amines and Photooxidation of Sulfides.","authors":"Mrunesh Koli, Sunita Gamre, Rajib Ghosh, A P Wadawale, Ayan Ghosh, Tapan K Ghanty, Soumyaditya Mula","doi":"10.1002/asia.202400975","DOIUrl":"https://doi.org/10.1002/asia.202400975","url":null,"abstract":"To develop heavy-atom-free triplet photosensitizers (PSs) based photocatalysts, we designed and synthesized two BODIPY-helicene dyes by fusing the BODIPY core and modified [5]helicene structures. These BODIPY-helicenes structures are twisted and their twisting angles are increased by the developed synthetic method. The BODIPY-helicenes have broad absorption bands over UV-visible region with high triplet conversions and long triplet lifetimes as compared to planar BODIPY dye, PM567. Consequently, these dyes are also highly efficient in generating 1O2 by transferring their triplet energy to 3O2 and importantly. All these are confirmed by dye-sensitised photooxidation reaction, nanosecond transient absorption spectroscopy study, phosphorescence measurement and DFT calculations. Finally, photocatalytic activity of the highest 1O2 generating BODIPY-helicene (4b) was checked. 4b is highly efficient in photocatalytic oxidative coupling of differently substituted amines through aerobatic oxidation using 1O2 generated by its photosensitization. It is also highly efficient photocatalyst for aerobatic oxidation of sulfides to sulfoxides. Importantly, the photocatalyst could be quantitatively recovered and reused for several cycles. All these results confirmed the potential use of the BODIPY-helicenes as PSs for photocatalytic organic reactions and the design strategy will be useful for the future development of heavy-atom-free photocatalyst.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142152691","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}

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Surface-Engineered Ni2P: An Efficient Oxygen Electrocatalyst for Zinc-Air Battery. 表面工程镍2P：锌-空气电池的高效氧气电催化剂。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-08 DOI: 10.1002/asia.202400684

C Retna Raj, Mopidevi Manikanta Kumar, Rahul Singh

{"title":"Surface-Engineered Ni2P: An Efficient Oxygen Electrocatalyst for Zinc-Air Battery.","authors":"C Retna Raj, Mopidevi Manikanta Kumar, Rahul Singh","doi":"10.1002/asia.202400684","DOIUrl":"https://doi.org/10.1002/asia.202400684","url":null,"abstract":"The surface engineering of electrocatalysts is one of the promising strategies to increase the intrinsic activity of electrocatalysts. It generates anion/cation vacancy defects and increases the electrochemically active surface area. We describe the surface engineering of Ni2P to favorably tune the bifunctional oxygen electrocatalytic activity and the development of a rechargeable zinc-air battery (ZAB). Ni2P encapsulated with N and P-dual doped carbon (Ni2P@NPC) is synthesized using a single-source precursor complex tris-(2,2'-bipyridine)nickel(II) bis(hexafluorophosphate). The surface engineering of the as-synthesized Ni2P@NPC is achieved by the controlled acid treatment at room temperature. The surface engineering removes carbon debris and opens the pores, exfoliates the encapsulating carbon layer, increases the P-vacancy in the crystal lattice, and boosts the electrochemically active surface area. The surface-engineered catalyst exhibits enhanced bifunctional activity towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The electrocatalytically active sites of engineered catalysts are highly accessible for facilitated electron transfer kinetics. P-vacancy favors the facile formation of defect-rich OER active metal oxyhydroxide species. The rechargeable ZAB based on the engineered catalyst delivers a specific capacity of 770.25 mA h gZn-1, energy density of 692 Wh kgZn-1, and excellent charge-discharge cycling performance with negligible voltaic efficiency loss (0.6 %) after 100 h.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142152692","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

Amino-Terephthalonitrile and Amino-Terephthalate-Based Single Benzene Fluorophores - Compact Color Tunable Molecular Dyes for Bioimaging and Bioanalysis. 氨基对苯二腈和氨基对苯二酸单苯荧光团--用于生物成像和生物分析的紧凑型颜色可调分子染料。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-06 DOI: 10.1002/asia.202400898

Tanya Raghava, Subhadeep Banerjee

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Constructing a non-noble metal WC/CaIn2S4 Schottky heterojunction photocatalyst for enhanced photocatalytic H2 production. 构建非贵金属 WC/CaIn2S4 肖特基异质结光催化剂，提高光催化 H2 产率。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-06 DOI: 10.1002/asia.202400901

Wenjun Jiang, Liang Zhou, Tan Phong Nguyen, Lingzhi Wang, Jinlong Zhang, Yongdi Liu, Juying Lei

{"title":"Constructing a non-noble metal WC/CaIn2S4 Schottky heterojunction photocatalyst for enhanced photocatalytic H2 production.","authors":"Wenjun Jiang, Liang Zhou, Tan Phong Nguyen, Lingzhi Wang, Jinlong Zhang, Yongdi Liu, Juying Lei","doi":"10.1002/asia.202400901","DOIUrl":"https://doi.org/10.1002/asia.202400901","url":null,"abstract":"To take the pronounced issue of recombination among photogenerated electrons and holes in the photocatalytic reaction, we report a WC/CaIn2S4 Schottky heterojunction photocatalyst using a straightforward one-step hydrothermal method and applied it for the enhanced hydrogen evolution reaction in photocatalysis. A stable Schottky energy barrier can be formed by closely connecting the metal-like WC with the n-type semiconductor CaIn2S4, accelerating the migration of photogenerated carriers. Meanwhile, WC can lower the overpotential for hydrogen evolution, leading to a notable enhancement in the photocatalytic hydrogen evolution rate. The hydrogen evolution rate of the optimal WC/CaIn2S4 Schottky heterojunction photocatalyst WCIS1:1 was approximately 2.3 times higher than that of Pt-loaded photocatalyst CIS+Pt. This study delves into the application significance of the Schottky heterojunction principle in the photocatalytic hydrogen production reaction. Furthermore, this study provides a novel approach to replacing noble metal Pt with metal-like WC in the field of photocatalytic hydrogen evolution.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142138736","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

Revisiting the Reaction of Sulfur Ylides with Acetylenic Esters: Synthesis of Trisubstituted 1,3-Dienes, α-Carbonyl Vinyl Sulfoxides and α-Carbonyl Vinyl Sulfoxonium Ylides. 重温硫酰化物与乙炔酯的反应：合成三代 1,3-二烯、α-羰基乙烯基硫醚和 α-羰基乙烯基硫酮鎓酰化物。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-06 DOI: 10.1002/asia.202400931

Matheus P de Jesus, Antonio C B Burtoloso

引用次数: 0

Achieving excellent H2 evolution activity of silver nanocatalyst by a simple electrochemical treatment process. 通过简单的电化学处理工艺实现银纳米催化剂优异的 H2 演化活性。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-06 DOI: 10.1002/asia.202400982

Phong Dinh Tran, Tien D Tran, Ly T Le, Anh D Nguyen

引用次数: 0

Recent advancements in Fe-based catalysts for the efficient reduction of NOx by CO. 用一氧化碳高效还原氮氧化物的铁基催化剂的最新进展。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-06 DOI: 10.1002/asia.202400802

Dianxing Lian, Mohaoyang Chen, Huanli Wang, Chenxi Li, Guiyao Dai, Botao Liu, Shujun Hou, Weiwei Zhang, Ke Wu, Yongjun Ji

{"title":"Recent advancements in Fe-based catalysts for the efficient reduction of NOx by CO.","authors":"Dianxing Lian, Mohaoyang Chen, Huanli Wang, Chenxi Li, Guiyao Dai, Botao Liu, Shujun Hou, Weiwei Zhang, Ke Wu, Yongjun Ji","doi":"10.1002/asia.202400802","DOIUrl":"https://doi.org/10.1002/asia.202400802","url":null,"abstract":"The technology of CO selective catalytic reduction of NOx (CO-SCR) showcases the potential to simultaneously eliminate CO and NOx from industrial flue gas and automobile exhaust, making it a promising denitrification method. The development of cost-effective catalysts is crucial for the widespread implementation of this technology. Transition metal catalysts are more economically viable than noble metal catalysts. Among these, Fe emerges as a prominent choice due to its abundant availability and cost-effectiveness, exhibiting excellent catalytic performance at moderate reaction temperatures. However, a significant challenge lies in achieving high catalytic activity at low temperatures, particularly in the presence of O2, SO2, and H2O, which are prevalent in specific industrial flue gas streams. This review examines the use of Fe-based catalysts in the CO-SCR reaction and elucidates their catalytic mechanism. Furthermore, it also discusses various strategies devised to enhance low-temperature conversion, taking into account factors such as crystal phase, valence states, and oxygen vacancies. Subsequently, the review outlines the challenges encountered by Fe-based catalysts and offers recommendations to improve their catalytic efficiency for use in low-temperature and oxygen-rich environments.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142138738","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

Iron-Chelating Hydroxyketone Ligands Promote Degradation of Fe(III)-Tannic Acid Nanofilms. 铁螯合羟基酮配体促进铁(III)-单宁酸纳米薄膜降解

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-05 DOI: 10.1002/asia.202400864

Hyejin Joo, Seulbi Kim, Kyungran Park, Seong Yoon Jang, Kyungtae Kang, Hyungjun Kim, Ji Hun Park

引用次数: 0

Difluoroboron complexes as versatile precursors for steroid modification. Lumiestrone-based steroid derivatives: synthesis and structural studies. 作为甾体修饰多功能前体的二氟硼络合物。基于 Lumiestrone 的类固醇衍生物：合成与结构研究。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-05 DOI: 10.1002/asia.202400595

Mikhail E Minyaev, Anna A Sukhanova, Mikhail A Prezent, Igor V Zavarzin

引用次数: 0

Advanced PEI/PAN Membrane to Suppress Zinc Dendrite Growth in Zinc Metal Batteries. 抑制锌金属电池中锌枝晶生长的先进 PEI/PAN 膜。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-04 DOI: 10.1002/asia.202400828

Arshad Hussain, Mostafa M Mohamed, Muhammad Omer Aijaz, Mohammad Rezaul Karim, Atif Saeed Alzahrani, Md Abdul Aziz

{"title":"Advanced PEI/PAN Membrane to Suppress Zinc Dendrite Growth in Zinc Metal Batteries.","authors":"Arshad Hussain, Mostafa M Mohamed, Muhammad Omer Aijaz, Mohammad Rezaul Karim, Atif Saeed Alzahrani, Md Abdul Aziz","doi":"10.1002/asia.202400828","DOIUrl":"https://doi.org/10.1002/asia.202400828","url":null,"abstract":"Aqueous zinc-ion batteries (AZIBs) are a potential new technology in energy storage due to their high energy density, affordability, and environmental friendliness. Unchecked zinc dendrite formation during cycling still hinders the development of AZIBs, resulting in an unstable interface, a short cycling life, a considerable capacity decline, and security issues. Herein, we demonstrate a novel nanofiber membrane based on a polyethylenimine-polyacrylonitrile (PEI-PAN) polymer produced by electrospinning with entangled nanofibers for AZIBs applications. The as-fabricated PEI/PAN membrane has a porous structure that is homogeneous, tortuous, and linked, with high porosity and superior electrolyte wettability. The PEI/PAN membrane has good thermal stability at 200 °C and high ionic conductivity of up to 5.3 x 10-4 S cm-1. This membrane provides Zn/Zn symmetric cells with an ultralong cycle life of over 250 hours at 3 mA cm-2. Additionally, MnO2/Zn cells outperforms commercial filter paper in terms of cycle stability and rate performance. This work demonstrates a simple technique for fabricating advanced nanofiber membranes for AZIBs to modify Zn2+ deposition behavior and improve Zn dendrite resistance.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142131371","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