The Royal Society of Chemistry最新文献

{"title":"Advanced electrolyte strategies for dendrite-free aqueous Zn-metal batteries.","authors":"Jiasen Yin, Yun Tan, Jun Pu","doi":"10.1039/d5cc00874c","DOIUrl":"https://doi.org/10.1039/d5cc00874c","url":null,"abstract":"<p><p>Aqueous Zn-metal batteries have attracted wide attention due to the abundant Zn reserves and the safety and non-toxicity of aqueous electrolytes, and have become a research hotspot in the field of electrochemical energy. However, the dendrite defects of metal Zn anodes and the resulting interfacial instability limit the large-scale development. Despite comprehensive studies and in-depth understanding, this issue still affects the electrochemical performance of Zn-metal batteries dramatically. In light of the great progress and recent focus, this review analyzes the origin of critical Zn dendrite related problems, and recapitulates the development of electrolyte strategies. In the end, various outlooks are summarized from different angles to improve the performance of Zn metal anodes. This study is expected to provide new inspiration for innovation in aqueous Zn battery electrolytes in the future.</p>","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":" ","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750235","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}

{"title":"Solvent-etching-induced <i>in situ</i> crystal structure transformation in hydrogen-bonded organic frameworks.","authors":"Xiaokang Wang, Hongyan Liu, Meng Sun, Fei Gao, Xueying Feng, Mingming Xu, Yutong Wang, Weidong Fan, Daofeng Sun","doi":"10.1039/d5cc00829h","DOIUrl":"https://doi.org/10.1039/d5cc00829h","url":null,"abstract":"<p><p><i>In situ</i> crystal structure transformation is an important method for the emergence of new structures. Currently, there are very limited reports on crystal structure transformation in hydrogen-bonded organic frameworks (HOFs), and such transformation only occurs in response to external stimulation. Herein, we report a rare solvent-etching-induced <i>in situ</i> crystal structure transformation in UPC-HOF-12 and UPC-HOF-13 (UPC-HOF = China University of Petroleum-hydrogen-bonded organic framework). Remarkably, molecule recognition is observed in the crystal structure transformation, <i>i.e.</i>, only <i>N</i>,<i>N</i>'-dimethylformamide (DMF) as the etching agent can cause the <i>in situ</i> crystal structure transformation, as evidenced by the consecutive changes in crystal morphology and time-dependent powder X-ray diffraction patterns. Simultaneous cleavage and regeneration of the flexible and fragile hydrogen bonds are observed with the determination of the single crystal structures. This rare example of solvent-etching-induced <i>in situ</i> crystal structure transformation with maintained crystallinity after crystal fragmentation can provide a new perspective for elucidating the crystal growth process in HOFs.</p>","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":" ","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750281","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}

{"title":"Rh(III)-catalyzed C-H alkenylation of NH-sulfoximine with vinylsilanes.","authors":"Yu Gao, Ya-Li Xu, Lin Dong","doi":"10.1039/d5ob00213c","DOIUrl":"https://doi.org/10.1039/d5ob00213c","url":null,"abstract":"<p><p>The rhodium(III)-catalysed <i>ortho</i>-C-H alkenylation of NH-sulfoximine using readily available vinylsilanes as an olefinating reagent to introduce vinylsilane groups has been achieved. These groups are adaptable synthetic intermediates, and can be selectively changed into a variety of substituents.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750335","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}

{"title":"Exploring superior nonlinear optical properties of copper complexes with π-conjugated ligands: experimental and theoretical investigation†","authors":"Mohd Muslim, Sultan, Liyaqat Ali Kamran, Basree, Amit Kumar Pradhan, Mohammad Jane Alam, S. M. Afzal, Musheer Ahmad and Mohd Afzal","doi":"10.1039/D4RA08037H","DOIUrl":"https://doi.org/10.1039/D4RA08037H","url":null,"abstract":"<p >This study explores the nonlinear optical (NLO) properties of two synthesized copper complexes, {[Cu(dmp)<small>₂</small>(H<small>₂</small>O)]·(PA)<small>₂</small>} (complex 1) and {[Cu(dmp)<small>₂</small>]·(PA)} (complex 2), where dmp represents 2,9-dimethyl-1,10-phenanthroline (neocuproine) and PA refers to picric acid. Employing both experimental and theoretical approaches, we comprehensively analyzed their NLO properties. Experimentally, third-order NLO parameters were determined using the Z-scan technique with a 520 nm continuous-wave diode laser, yielding values of nonlinear refractive index (<em>n</em><small>₂</small>), nonlinear absorption coefficient (<em>β</em>), and third-order nonlinear optical susceptibility (<em>χ</em><small>⁽³⁾</small>) on the order of 10<small>⁻⁷</small> cm<small>²</small> W<small>⁻¹</small>, 10<small>⁻³</small> cm W<small>⁻¹</small>, and 10<small>⁻⁶</small> esu, respectively. These findings underscore their significant optical nonlinearity and suitability for intensity-dependent NLO applications, as evidenced by their high values of negative refractive index. Density Functional Theory (DFT) investigations were performed at the M062X/(6-31G(d,p)/LanL2DZ)) level to evaluate key reactivity descriptors, including polarizability, hyperpolarizability, and dipole moment, which align with the experimental results. Conceptual DFT analysis reveals that complex 1 is more stable, while complex 2 exhibits higher reactivity. The strong hyperpolarizability and remarkable third-order NLO properties of these copper complexes demonstrate their potential for advanced photonic and optoelectronic applications.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 6","pages":" 4657-4668"},"PeriodicalIF":3.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d4ra08037h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of MnSc2X4 (X = S, Se) spinels to unveil their potential for optoelectronic and thermoelectric applications","authors":"Syed Ali Raza, Ghulam M. Mustafa, M. Adil Ameer, N. A. Noor, Zahid Farooq, Sohail Mumtaz and Ihab Mohamed Moussa","doi":"10.1039/D4RA08334B","DOIUrl":"https://doi.org/10.1039/D4RA08334B","url":null,"abstract":"<p >To advance the fields of optoelectronics and thermoelectrics, the demand for developing novel materials with exceptional optoelectronic and thermoelectric characteristics has greatly increased. In this respect, spinels are among the well-researched materials in the scientific community. The present study examines the mechanical, optoelectronic, magnetic, and thermoelectric characteristics of MnSc<small>₂</small>X<small>₄</small> (X = S, Se), utilizing the WIEN2k and BoltzTrap code. The investigated materials exhibit cubic structures with the <em>Fd</em><img><em>m</em> space group and lattice parameters of 10.44 and 10.94 Å for S- and Se-based compositions, respectively. Fulfillment of the Born stability criteria attest to the mechanical stability, while negative formation energies validate the thermodynamic stability of the spinels. The spin-polarized electronic band structure (EBS) and the density of states (DOS) reveal the semiconducting nature of the materials with direct bandgap (<em>E</em><small>_g</small>). In the optical parameters, MnSc<small>₂</small>S<small>₄</small> and MnSc<small>₂</small>Se<small>₄</small> show a static dielectric constant of 6.5 and 8.5, respectively. The materials exhibit wide absorption spectra, ranging from visible to ultraviolet (UV) regions, with the highest absorption in the UV region. The spin-dependent volume optimization demonstrates the ferromagnetic (FM) nature of the materials. The presence of Mn ions in the compositions imparts this magnetic nature to them, which is analyzed by its high local magnetic moment. Lastly, the transport characteristics are analyzed against the increasing temperature in the range of 300–800 K. These materials exhibit high Seebeck coefficients of 242 to 251 μV K<small>⁻¹</small>, and their electrical and thermal conductivities increase with temperature. The figure of merit <em>ZT</em> showed an almost constant value at varying temperatures. The outcomes of this study demonstrate the investigated materials as potential candidates for optoelectronic and thermoelectric applications.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 9662-9675"},"PeriodicalIF":3.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d4ra08334b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Graphene-based materials: an innovative approach for neural regeneration and spinal cord injury repair","authors":"Ayda Yari-Ilkhchi, Nazila Hamidi, Mehrdad Mahkam and Abbas Ebrahimi-Kalan","doi":"10.1039/D4RA07976K","DOIUrl":"https://doi.org/10.1039/D4RA07976K","url":null,"abstract":"<p >Spinal cord injury (SCI), the most serious disease affecting the central nervous system (CNS), is one of contemporary medicine's most difficult challenges, causing patients to suffer physically, emotionally, and socially. However, due to recent advances in medical science and biomaterials, graphene-based materials (GBMs) have tremendous potential in SCI therapy due to their wonderful and valuable properties, such as physicochemical properties, extraordinary electrical conductivity, distinct morphology, and high mechanical strength. This review discusses SCI pathology and GBM characteristics, as well as recent <em>in vitro</em> and <em>in vivo</em> findings on graphenic scaffolds, electrodes, and injectable achievements for SCI improvement using neuroprotective and neuroregenerative techniques to improve neural structural and functional repair. Additionally, it suggests possible ideas and desirable products for graphene-based technological advances, intending to reach therapeutic importance for SCI.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 9829-9853"},"PeriodicalIF":3.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d4ra07976k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anchored epitaxial growth of single-oriented one-dimensional organic nanowires towards their integration into field-effect transistors and polarization-sensitive photodetector arrays†","authors":"Phetluengxay Keo, Tingyi Yan, Jinwen Wang, Xiujuan Zhang, Yandi Shi and Jiansheng Jie","doi":"10.1039/D4RA08354G","DOIUrl":"https://doi.org/10.1039/D4RA08354G","url":null,"abstract":"<p >The deliberate assembly of organic small molecules into single-oriented one-dimensional (1D) nanowires is essential for the large-scale, on-chip integration of organic nanowire-based (opto)electronic devices. However, achieving single-oriented 1D organic nanowires remains a considerable challenge, predominantly attributed to the intricate nucleation and growth behaviors of the molecules. Herein, an anchored epitaxial growth method was developed to facilitate the single-oriented growth of 1D organic nanowires using the parallel nanogrooves on the annealed sapphire as anchoring seed crystal templates. The depth of the nanogrooves was greater than the length of the molecules, enabling the molecules to be embedded into the V-shaped nanogrooves and to form anchored nuclei during the physical vapor deposition process. Subsequently, these nuclei exhibited directional epitaxial growth along the nanogrooves, resulting in the formation of single-oriented 1D organic nanowires. Various organic small molecule 1D nanowires with uniform molecular packing and orientation were obtained and utilized for subsequent device integration. 2,7-Dioctyl[1]benzothiophene (C8-BTBT) was used as a model material, and the flexible organic field-effect transistor (OFET) based on the single C8-BTBT nanowire exhibited a mobility of up to 1.5 cm<small>²</small> V<small>⁻¹</small> s<small>⁻¹</small>. Benefiting from high mobility and uniform orientation, the integrated polarization-sensitive photodetector arrays based on 1D C8-BTBT nanowires exhibited a high dichroic ratio of up to 2.83, which was higher than those of some previously investigated 1D nanowires and two-dimensional materials. This work presents new opportunities to fabricate single-oriented 1D organic nanowires for integrated devices.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 9891-9898"},"PeriodicalIF":3.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d4ra08354g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient direction-independent 3D spiral fog collector.","authors":"Yihang Zhang, Liubin Li, Yuxuan He, Huayang Zhang, Shanpeng Li, Zhiguang Guo","doi":"10.1039/d5mh00158g","DOIUrl":"https://doi.org/10.1039/d5mh00158g","url":null,"abstract":"<p><p>Inspired by the natural structures of cacti and desert beetles, a novel three-dimensional (3D) high-efficiency fog collector is proposed. This design integrates a unique macro-structural configuration with a surface wettability gradient that remains independent of the fog flow direction. The fog collector adopts an integral spiral structure, with superhydrophilic triangular protrusions uniformly distributed across its surface. Under optimized design conditions, with a folding angle of 60 degrees, the collector features 23 superhydrophilic protrusions, each measuring 2.5 × 5 mm. Under these conditions, the fog collection efficiency reaches 0.5057 g cm^-2 min^-1. Furthermore, to assess the practical feasibility of the fog collector, a series of experiments, including sand impact and chemical resistance tests, were conducted. The experimental results show that the contact angle of the fog collector's surface remains high, indicating its excellent stability and durability. The fog collector not only uses a low-cost aluminum plate as the base material but also incorporates a simple and efficient preparation process, significantly enhancing its design feasibility and practicality. The results presented in this study offer a novel approach to designing high-efficiency fog collectors that are unaffected by the direction of fog flow.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"NaI-mediated α-keto-acylation of <i>NH</i>-sulfoximines with aryl methyl ketones.","authors":"Parbin Rahman, Nikita Chakraborty, Bhisma K Patel, Kamal K Rajbongshi","doi":"10.1039/d5ob00166h","DOIUrl":"https://doi.org/10.1039/d5ob00166h","url":null,"abstract":"<p><p>A room-temperature NaI-mediated oxidative sulfoximidation of aryl methyl ketones to synthesize α-keto-<i>N</i>-acyl sulfoximines has been disclosed. This metal- and base-free <i>NH</i>-sulfoximidation is facilitated by <i>tert</i>-butyl hydroperoxide (TBHP) as the oxidant, affording α-ketoamides with good functional group tolerance, broad substrate scope, and scalability. Mechanistic investigations indicate the intermediacy of radicals and highlight molecular oxygen's significance as the oxygen source.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750333","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}

{"title":"NHC-catalysed synthesis of hydroxy methylene-bridged formyl-di-xylofuranose: access to tetrakis and spiro tricyclic xylofuranose.","authors":"Norein Sakander, Rahul Haldar, Debaraj Mukherjee","doi":"10.1039/d5ob00259a","DOIUrl":"https://doi.org/10.1039/d5ob00259a","url":null,"abstract":"<p><p>Herein, the role of <i>N</i>-heterocyclic carbenes (NHC) as a Brønsted base in the transformation of xylofuranose aldehyde has been explored. Furanose aldehyde undergoes intermolecular self-condensation catalyzed by thiazolium-derived carbene, producing hydroxy methylene-bridged formyl-di-xylofuranose retaining the C-4 aldehyde. Furthermore, modification of the hydroxy methylene-linked disaccharide yields spiro[furano-4,5-pyrano[3,2-<i>b</i>]furanose] and oxy-methylene-bridged di-formyl-xylofuranose cyclic tetrasaccharide.</p>","PeriodicalId":96,"journal":{"name":"Organic & Biomolecular Chemistry","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750334","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}