Chemical Communications最新文献_第10页

Optical cavity enhancement of visible light-driven photochemical reaction in the crystalline state. 光学腔增强可见光在晶体状态下驱动光化学反应。

IF 4.3 2区化学

Chemical Communications Pub Date : 2025-01-20 DOI: 10.1039/d4cc05598e

Ikuto Sasaki, Kiyonori Takahashi, Farsai Taemaitree, Takayoshi Nakamura, James A Hutchison, Hiroshi Uji-I, Kenji Hirai

引用次数: 0

A brief review on the progress of MXene-based catalysts for electro- and photochemical water splitting for hydrogen generation. 综述了mxene基电光化学水裂解制氢催化剂的研究进展。

IF 4.3 2区化学

Chemical Communications Pub Date : 2025-01-20 DOI: 10.1039/d4cc05868b

Manzoor Ahmad Pandit, Jingwei Yuan, Roshan Nazir, Yubing Dong, Qianqian Li

{"title":"A brief review on the progress of MXene-based catalysts for electro- and photochemical water splitting for hydrogen generation.","authors":"Manzoor Ahmad Pandit, Jingwei Yuan, Roshan Nazir, Yubing Dong, Qianqian Li","doi":"10.1039/d4cc05868b","DOIUrl":"https://doi.org/10.1039/d4cc05868b","url":null,"abstract":"The development and generation of affordable and highly efficient energy, particularly hydrogen, are one of the best approaches to address the challenges posed by the depletion of non-renewable energy sources. Hydrogen energy, as a green and ecosystem-friendly source with zero carbon emission, can be generated through various methods, including water splitting (HER/OER) via either photo- or electrocatalytic reactions. To implement these reactions effectively in practical applications, it is highly desirable to develop extremely efficient and cost-effective catalytic materials that are comparable to contemporary catalysts. MXenes, a family of newly discovered 2D transition metal carbides, nitrides, or carbonitrides with surface termination groups, such as -OH, -O, and -F, have emerged as promising materials and substrates for photo- and electrocatalytic applications due to their unique characteristics. These include excellent conductivity provided by the transition metals, hydrophilic nature imparted by the surface termination groups, high mechanical stability, fast electronic transmission and extremely high surface area-to-volume ratios. In this review, we provide detailed insights into the synthesis, properties, and catalytic applications of MXenes. We systematically outline the photo- and electrocatalytic water splitting reactions carried out by various MXene-based heterostructures, supported by experimental data. A thorough deliberation on the structure-activity associations of reported catalysts and a basic understanding of the electrocatalytic applications of MXenes are also included. Furthermore, we offer an insight into the upcoming tasks, challenges, prospects and new research strategies for MXenes in water splitting applications. A noteworthy recognition of the design and optimization of extremely efficient MXene-based catalysts in water splitting applications is therefore offered in this review.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":" ","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142996421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Functional flexible adsorbents and their potential utility

IF 4.9 2区化学

Chemical Communications Pub Date : 2025-01-20 DOI: 10.1039/d4cc05393a

Kyriaki Koupepidou, Aizhamal Subanbekova, Michael J. Zaworotko

{"title":"Functional flexible adsorbents and their potential utility","authors":"Kyriaki Koupepidou, Aizhamal Subanbekova, Michael J. Zaworotko","doi":"10.1039/d4cc05393a","DOIUrl":"https://doi.org/10.1039/d4cc05393a","url":null,"abstract":"Physisorbents are poised to address global challenges such as CO2 capture, mitigation of water scarcity and energy-efficient commodity gas storage and separation. Rigid physisorbents, i.e. those adsorbents that retain their structures upon gas or vapour exposure, are well studied in this context. Conversely, cooperatively flexible physisorbents undergo long-range structural transformations stimulated by guest exposure. Discovered serendipitously, flexible adsorbents have generally been regarded as scientific curiosities, which has contributed to misconceptions about their potential utility. Recently, increased scientific interest and insight into the properties of flexible adsorbents has afforded materials whose performance suggests that flexible adsorbents can compete with rigid adsorbents for both storage and separation applications. With respect to gas storage, adsorbents that undergo guest-induced phase transformations between low and high porosity phases in the right pressure range can offer improved working capacity and heat management, as exemplified by studies on adsorbed natural gas storage. For gas and vapour separations, the very nature of flexible adsorbents means that they can undergo induced fit mechanisms of guest binding, i.e. the adsorbent can adapt to a specific adsorbate. Such flexible adsorbents have set several new benchmarks for certain hydrocarbon separations in terms of selectivity and separation performance. This Feature Article reviews progress made by us and others towards the crystal engineering (design and control) of flexible adsorbents and addresses several of the myths that have emerged since their initial discovery, particularly with respect to those performance parameters of relevance to natural gas storage, water harvesting and hydrocarbon gas/vapour separation.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"109 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A sequential Au(I)/TBAF-promoted rapid and selective functionalization of heteroarene N-oxides with alkynes. 顺序Au(I)/ taff促进了杂环芳烃n -氧化物与炔烃的快速选择性功能化。

IF 4.3 2区化学

Chemical Communications Pub Date : 2025-01-20 DOI: 10.1039/d4cc06305h

Mengfei Jiang, Huilong Zhu, Lei Huang, Du Luo, Heping Shi, Zhou Xu, Nan Wu

引用次数: 0

Crown ether functionalization boosts CO2 electroreduction to ethylene on copper-based MOFs 冠醚功能化促进铜基mof上CO2电还原成乙烯

IF 4.9 2区化学

Chemical Communications Pub Date : 2025-01-20 DOI: 10.1039/d4cc06719c

Xuan Zheng, Siheng Yang, Dingwen Chen, Yuxuan Kong, Tianhua Cui, Xueli Zheng, Haiyan Fu, Weichao Xue, Shuang Li, Chong Cheng, Hua Chen, Ruixiang Li, Jiaqi Xu

{"title":"Crown ether functionalization boosts CO2 electroreduction to ethylene on copper-based MOFs","authors":"Xuan Zheng, Siheng Yang, Dingwen Chen, Yuxuan Kong, Tianhua Cui, Xueli Zheng, Haiyan Fu, Weichao Xue, Shuang Li, Chong Cheng, Hua Chen, Ruixiang Li, Jiaqi Xu","doi":"10.1039/d4cc06719c","DOIUrl":"https://doi.org/10.1039/d4cc06719c","url":null,"abstract":"The electroconversion of CO2 into ethylene (C2H4) offers a promising solution to environmental and energy challenges. Crown ether (CE) modification significantly enhances the C2H4 selectivity of copper-based MOFs, improving C2H4 faradaic efficiency (FE) in CuBTC, CuBDC, and CuBDC-NH2 by 3.1, 1.7, and 2.4 times, respectively. Among these, CuBTC achieves the highest FE for C2H4, reaching ca. 52% at 120 mA cm−2. Control experiments and in situ Fourier transform infrared spectroscopy (FTIR) reveal that CE stabilizes Cu+ during the catalyst's in situ reconstruction, promoting the formation of Cu2O, which is more favorable for C2H4 production. Furthermore, CE increases the local concentration of K+ at the catalyst–electrolyte interface, enhancing *CO adsorption and facilitating C–C coupling reactions. This process promotes the formation of key intermediates, such as *CO*CO, *CO*COH and *COCHO, ultimately boosting C2H4 production.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"64 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Pushing the limits of electron donation for cis-chelating ligands via an alliance of phosphonium ylide and anionic abnormal NHC. 通过酰基化磷和阴离子异常NHC的结合，突破了顺式螯合配体给电子的极限。

IF 4.3 2区化学

Chemical Communications Pub Date : 2025-01-20 DOI: 10.1039/d4cc06177b

Mustapha El Kadiri, Abdelhaq Cherradi, Oleg A Filippov, Carine Duhayon, Vincent César, Elena S Shubina, Mohammed Lahcini, Dmitry A Valyaev, Yves Canac

引用次数: 0

Enhanced dielectric losses in α-MnO₂via protonation modulation. 质子化调制增强α- mno2的介电损耗。

IF 4.3 2区化学

Chemical Communications Pub Date : 2025-01-20 DOI: 10.1039/d4cc05988c

Tengchao Guo, Yuejun Feng, Bin Quan, Yuhang Zhuang, Guomin Sun, Liang Xue, Lingzhe Fang, Xiaohui Zhu

引用次数: 0

Advances in magnetic nanoparticles for molecular medicine 用于分子医学的磁性纳米粒子的研究进展

IF 4.9 2区化学

Chemical Communications Pub Date : 2025-01-20 DOI: 10.1039/d4cc05167j

Xiaoyue Yang, Sarah E. Kubican, Zhongchao Yi, Sheng Tong

{"title":"Advances in magnetic nanoparticles for molecular medicine","authors":"Xiaoyue Yang, Sarah E. Kubican, Zhongchao Yi, Sheng Tong","doi":"10.1039/d4cc05167j","DOIUrl":"https://doi.org/10.1039/d4cc05167j","url":null,"abstract":"Magnetic nanoparticles (MNPs) are highly versatile nanomaterials in nanomedicine, owing to their diverse magnetic properties, which can be tailored through variations in size, shape, composition, and exposure to inductive magnetic fields. Over four decades of research have led to the clinical approval or ongoing trials of several MNP formulations, fueling continued innovation. Beyond traditional applications in drug delivery, imaging, and cancer hyperthermia, MNPs have increasingly advanced into molecular medicine. Under external magnetic fields, MNPs can generate mechano- or thermal stimuli to modulate individual molecules or cells deep within tissue, offering precise, remote control of biological processes at cellular and molecular levels. These unique capabilities have opened new avenues in emerging fields such as genome editing, cell therapies, and neuroscience, underpinned by a growing understanding of nanomagnetism and the molecular mechanisms responding to mechanical and thermal cues. Research on MNPs as a versatile synthetic material capable of engineering control at the cellular and molecular levels holds great promise for advancing the frontiers of molecular medicine, including areas such as genome editing and synthetic biology. This review summarizes recent clinical studies showcasing the classical applications of MNPs and explores their integration into molecular medicine, with the goal of inspiring the development of next-generation MNP-based platforms for disease treatment.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"37 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

DNDMH Enabled C(sp3)−H Nitration of Aryl Alkenes DNDMH使C(sp3)−H硝化芳基烯烃

IF 4.9 2区化学

Chemical Communications Pub Date : 2025-01-18 DOI: 10.1039/d4cc06671e

Zhiyuan Wang, Yali Li, Xuena Ding, Yuancheng Sun, Chongchong Chen, Wei Sun, Xiangdong Hu

引用次数: 0

Controllable properties of NiO nanostructures fabricated by plasma assisted-chemical vapor deposition 等离子体辅助化学气相沉积制备NiO纳米结构的可控性能

IF 4.9 2区化学

Chemical Communications Pub Date : 2025-01-17 DOI: 10.1039/d4cc06548d

Davide Barreca, Enrico Scattolin, Chiara Maccato, Alberto Gasparotto, Lorenzo Signorin, Naida El Habra, Andraž Šuligoj, Urška Lavrenčič Štangar, Gian Andrea Rizzi

引用次数: 0