Chinese Chemical Letters最新文献_第8页

Introducing high-valence element into P2-type layered cathode material for high-rate sodium-ion batteries 高倍率钠离子电池p2型层状正极材料中引入高价元

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2025-02-21 DOI: 10.1016/j.cclet.2025.110993

Fanjun Kong , Jing Zhang , Yuting Tang , Chencheng Sun , Chunfu Lin , Tao Zhang , Wangsheng Chu , Li Song , Liang Zhang , Shi Tao

{"title":"Introducing high-valence element into P2-type layered cathode material for high-rate sodium-ion batteries","authors":"Fanjun Kong , Jing Zhang , Yuting Tang , Chencheng Sun , Chunfu Lin , Tao Zhang , Wangsheng Chu , Li Song , Liang Zhang , Shi Tao","doi":"10.1016/j.cclet.2025.110993","DOIUrl":"10.1016/j.cclet.2025.110993","url":null,"abstract":"<div><div>P2-type layered transition-metal oxides with high energy density and rich variety have attracted extensive attention for sodium-ion batteries (SIBs) in grid-scale energy storage application, but they usually suffer from sluggish kinetics and large volume change upon cycling. Herein, we designed a high-performance P2-type Na<sub>0.67</sub>Ni<sub>0.31</sub>Mn<sub>0.67</sub>Mo<sub>0.02</sub>O<sub>2</sub> (NNMMO) cathode with regulated electronic environment and Na<sup>+</sup> zigzag ordering modulation <em>via</em> high-valence Mo<sup>6+</sup> stabilization engineering. The achieved NNMMO cathode exhibits a high-rate capability with a reversible capacity of 77.2 mAh/g at 10 C and a long cycle life with a capacity retention of 75 % at 2 C after 1000 cycles. In addition, <em>in situ</em> X-ray diffraction and <em>ex-situ</em> X-ray absorption fine structure spectroscopy characterizations verify that the presence of Mo<sup>6+</sup> also stabilizes the desodiated structure through a pinning effect, achieving an extremely low volume change of 1.04 % upon Na<sup>+</sup> extraction. The quantified diffusional analysis and theoretical calculations demonstrate that the Mo<sup>6+</sup>-doping improves the Na<sup>+</sup> diffusion kinetics, optimizes the energy band structure and enhances the TM-O bond strength. Additionally, the as-fabricated pouch cells by paring NNMMO cathode and hard carbon anode show impressive cycling stability with an energy density of 296.7 Wh/kg. This study broadens the perspective for high-valence metal ion doping to obtain superior cathode materials and pave the way for developing high-energy-density SIBs.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 8","pages":"Article 110993"},"PeriodicalIF":9.4,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Phase diagram as a lens for unveiling thermodynamics trends in lithium–sulfur batteries 相图作为揭示锂硫电池热力学趋势的透镜

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2025-02-21 DOI: 10.1016/j.cclet.2025.110986

Bo-Bo Zou, Hong-Jie Peng

引用次数: 0

Dye-mediated FRET strategy for constructing semi-synthetic large Stokes shift far-red fluorescent protein 染料介导的FRET策略构建半合成大斯托克斯位移远红色荧光蛋白

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2025-02-20 DOI: 10.1016/j.cclet.2025.110984

Xuelian Zhou , Lu Miao , Wei Zhou , Qinglong Qiao , Zhaochao Xu

{"title":"Dye-mediated FRET strategy for constructing semi-synthetic large Stokes shift far-red fluorescent protein","authors":"Xuelian Zhou , Lu Miao , Wei Zhou , Qinglong Qiao , Zhaochao Xu","doi":"10.1016/j.cclet.2025.110984","DOIUrl":"10.1016/j.cclet.2025.110984","url":null,"abstract":"<div><div>Red fluorescent proteins with large Stokes shift (LSS-RFPs) are advantageous for multicolor imaging applications that allow simultaneous visualizations of multiple biological events. But it is difficult to develop LSS-RFPs by extending the emission wavelength of RFPs to far-red region. Here, we employed Förster resonance energy transfer (FRET) strategy to engineer the far-red fluorescent proteins with large Stokes shift. LSS-mApple and LSS-mCherry were constructed by fusing HaloTag to mApple and mCherry, allowing the fluorophore TMSiR to be connected to these RFPs. FRET between RFPs and TMSiR enabled them to apply the excitation of donor RFPs to emit far-red fluorescence of acceptor TMSiR. The Stokes shifts of LSS-mApple and LSS-mCherry were 97 nm and 75 nm, respectively. The high FRET efficiency of LSS-mCherry (E<sub>FRET</sub> = 83.7 %) can greatly reduce the fluorescence from the donor channel, which did not affect co-imaging with mCherry. In addition, LSS-mCherry also showed excellent photostability (<em>t</em><sub>1/2</sub> = 449.3 s), enabling stable confocal fluorescence imaging for 15 min under continuous strong excitation. Furthermore, LSS-mCherry was applied for fluorescence labeling and imaging of the nucleus, mitochondria, lysosomes, and endoplasmic reticulum in living cells. Finally, we applied LSS-mCherry to perform multi-color bioimaging of 2–4 channels, and there was no obvious crosstalk between these channels.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 10","pages":"Article 110984"},"PeriodicalIF":9.4,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

IFC - Editorial Board/ Publication info IFC -编辑委员会/出版信息

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2025-02-19 DOI: 10.1016/S1001-8417(25)00059-2

引用次数: 0

Solvent engineering in perovskite nanocrystal colloid inks for super-fine electrohydrodynamic inkjet printing of color conversion microstructures in micro-LED displays 钙钛矿纳米晶体胶体油墨的溶剂工程，用于超细电流体动力喷墨打印微细led显示屏的彩色转换微结构

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2025-02-19 DOI: 10.1016/j.cclet.2025.110976

Shuli Wang , Xuemin Kong , Siting Cai , Yunshu Luo , Yuxuan Gu , Xiaotong Fan , Guolong Chen , Xiao Yang , Zhong Chen , Yue Lin

{"title":"Solvent engineering in perovskite nanocrystal colloid inks for super-fine electrohydrodynamic inkjet printing of color conversion microstructures in micro-LED displays","authors":"Shuli Wang , Xuemin Kong , Siting Cai , Yunshu Luo , Yuxuan Gu , Xiaotong Fan , Guolong Chen , Xiao Yang , Zhong Chen , Yue Lin","doi":"10.1016/j.cclet.2025.110976","DOIUrl":"10.1016/j.cclet.2025.110976","url":null,"abstract":"<div><div>Super-fine electrohydrodynamic inkjet (SIJ) printing of perovskite nanocrystal (PNC) colloid ink exhibits significant potential in the fabrication of high-resolution color conversion microstructures arrays for full-color micro-LED displays. However, the impact of solvent on both the printing process and the morphology of SIJ-printed PNC color conversion microstructures remains underexplored. In this study, we prepared samples of CsPbBr<sub>3</sub> PNC colloid inks in various solvents and investigated the solvent's impact on SIJ printed PNC microstructures. Our findings reveal that the boiling point of the solvent is crucial to the SIJ printing process of PNC colloid inks. Only does the boiling point of the solvent fall in the optimal range, the regular positioned, micron-scaled, conical PNC microstructures can be successfully printed. Below this optimal range, the ink is unable to be ejected from the nozzle; while above this range, irregular positioned microstructures with nanoscale height and coffee-ring-like morphology are produced. Based on these observations, high-resolution color conversion PNC microstructures were effectively prepared using SIJ printing of PNC colloid ink dispersed in dimethylbenzene solvent.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 8","pages":"Article 110976"},"PeriodicalIF":9.4,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144223665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Modulation of the structures and properties of iron-carbon composites by different small molecular carbon sources for Fenton-like reactions 不同小分子碳源对类芬顿反应中铁碳复合材料结构和性能的调节

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2025-02-13 DOI: 10.1016/j.cclet.2025.110955

Siyuan You , Rui Li , Haoyun Lu , Lifei Hou , Xing Xu , Yanan Shang

{"title":"Modulation of the structures and properties of iron-carbon composites by different small molecular carbon sources for Fenton-like reactions","authors":"Siyuan You , Rui Li , Haoyun Lu , Lifei Hou , Xing Xu , Yanan Shang","doi":"10.1016/j.cclet.2025.110955","DOIUrl":"10.1016/j.cclet.2025.110955","url":null,"abstract":"<div><div>In this study, different types of small molecular carbon sources such as melamine, dicyandiamine, pyrocatechol, and <em>o</em>-phenylenediamine were used to regulate the surface structures of iron/nitrogen/carbon-based composites (Fe-N/C), which were used to activate peroxymonosulfate (PMS). The relationship between different small molecular carbon sources and the electronic structure was investigated. The characteristics of metal-carrier interaction in the Fe-N/C were clarified. As a result, there were significant differences in the degradation efficiency of catalysts prepared with different small molecular carbon sources, which was related to the types of active sites. Density functional theory (DFT) and experiments results showed that the catalyst rich in C<img>O-C and FeN<sub>x</sub> exhibited better catalytic activity, which may be attributed to the higher adsorption energy for PMS. The main active species for catalytic degradation of ofloxacin were identified as sulfate radical (SO<sub>4</sub><sup>•-</sup>) and hydroxyl radical (<sup>•</sup>OH) by electron paramagnetic resonance (EPR) spectra. The introduction of different small molecular carbon sources can significantly affect the distribution and electronic structure of active sites on the catalyst surface, thereby regulating the generation and migration of radicals.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 9","pages":"Article 110955"},"PeriodicalIF":9.4,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144579309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Macrocyclic host molecules: Rising as a promising supramolecular material 大环宿主分子：作为一种有前途的超分子材料正在崛起

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2025-02-12 DOI: 10.1016/j.cclet.2025.110950

Xinguo Mao , Shuo Zhang , Qiang Shi , Hua Cheng , Leyong Wang

引用次数: 0

Element transfer reaction theory: Scientific connotation and its applications in chemical industry 元素转移反应理论：科学内涵及其在化学工业中的应用

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2025-02-07 DOI: 10.1016/j.cclet.2025.110924

Hongen Cao , Xinrui Xiao , Xu Zhang , Yiyang Zhang , Lei Yu

引用次数: 0

Highly stereo- and enantio‑selective synthesis of spiro cyclopropyl oxindoles via organic catalyst-mediated cyclopropanation 通过有机催化剂介导的环丙化合成高立体和对映选择性的螺环丙基氧吲哚

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2025-02-06 DOI: 10.1016/j.cclet.2025.110923

Min Liu , Di Wang , Zenghui Ye , Donghao Jiang , Bencan Tang , Yanqi Wu , Fengzhi Zhang

引用次数: 0

Harnessing the interfacial sulfur-edge and metal-edge sites in ZnIn2S4/MnS heterojunctions boosts charge transfer for photocatalytic hydrogen production 利用ZnIn2S4/MnS异质结中硫边和金属边的界面位点促进光催化制氢的电荷转移

IF 9.4 1区化学

Chinese Chemical Letters Pub Date : 2025-02-05 DOI: 10.1016/j.cclet.2025.110922

Yueting Ma , Zhiyan Feng , Yuxin Dong , Zhiyong Yan , Hou Wang , Yan Wu

{"title":"Harnessing the interfacial sulfur-edge and metal-edge sites in ZnIn2S4/MnS heterojunctions boosts charge transfer for photocatalytic hydrogen production","authors":"Yueting Ma , Zhiyan Feng , Yuxin Dong , Zhiyong Yan , Hou Wang , Yan Wu","doi":"10.1016/j.cclet.2025.110922","DOIUrl":"10.1016/j.cclet.2025.110922","url":null,"abstract":"<div><div>Rapid carrier recombination and slow charge transfer dynamics have significantly reduced the performance of photocatalytic hydrogen production. Construction of heterojunctions <em>via</em> utilizing the sulfur-edge and metal-edge sites of metal sulfide semiconductor for improving photocatalytic activity remains a significant challenge. Herein, a novel ZnIn<sub>2</sub>S<sub>4</sub>/MnS S-scheme heterojunction was prepared by hydrothermal synthesis to accelerate charge carrier transfer for efficient photocatalysis. Notably, ZnIn<sub>2</sub>S<sub>4</sub>/MnS exhibited excellent photocatalytic hydrogen evolution activity (7.95 mmol g<sup>−1</sup> h<sup>−1</sup>) under visible light irradiation (≥420 nm), up to 4.7 times higher than that of pure ZnIn<sub>2</sub>S<sub>4</sub>. Additionally, cycling experiments showed that ZM-2 remained high stability after four cycles. Density-functional theory (DFT) calculations and <em>in situ</em> XPS results confirm the formation of S-scheme heterojunction, indicating that the tight interfacial contact between ZnIn<sub>2</sub>S<sub>4</sub> and MnS with the presence of Mn-S bonds (the unsaturated Mn edges of MnS and the uncoordinated S atoms in the edge of ZnIn<sub>2</sub>S<sub>4</sub>) promoted faster charge transfer. Besides, the unsaturated S atom on the surface of MnS is an active site with strong H<sup>+</sup> binding ability, which can effectively reduce the overpotential or activation barrier for hydrogen evolution. This study illustrates the critical influence of the interfacial Mn-S bond on the ZnIn<sub>2</sub>S<sub>4</sub>/MnS S-scheme heterojunction to achieve efficient photocatalytic hydrogen production and provides relevant guidance for carrying out rational structural/interfacial modulation.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 6","pages":"Article 110922"},"PeriodicalIF":9.4,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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