Inorganic Chemistry Frontiers最新文献

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Highly Reversible Zinc Electrodeposition Enabled by Glutathione-Protected Copper Nanoclusters for Aqueous Zn-Ion Batteries 利用谷胱甘肽保护铜纳米团簇实现锌的高可逆性电沉积,用于水性锌-离子电池
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-11-27 DOI: 10.1039/d4qi02605e
Lu-Fan Wang, Xiao-Yuan Wang, Shu Xu, Zhou Wu, Guoqiang Sun, Xiao-Fei Liu, Ren-Wu Huang, Shuang-Quan Zang
{"title":"Highly Reversible Zinc Electrodeposition Enabled by Glutathione-Protected Copper Nanoclusters for Aqueous Zn-Ion Batteries","authors":"Lu-Fan Wang, Xiao-Yuan Wang, Shu Xu, Zhou Wu, Guoqiang Sun, Xiao-Fei Liu, Ren-Wu Huang, Shuang-Quan Zang","doi":"10.1039/d4qi02605e","DOIUrl":"https://doi.org/10.1039/d4qi02605e","url":null,"abstract":"Dendrite growth and side reactions occurring in Zn anodes hinder the development and practical application of aqueous Zn-ion batteries. Herein, for the first time, we demonstrated the use of ligand-protected Cu nanoclusters as Zn plating/stripping mediators to construct dendrite-free Zn anodes. The abundant polar functional groups (–COOH, –NH2, and –CO–NH–) on the peripheral ligands modulated the solvation structure and regulated the transport of Zn2+, whereas the zincophilic Cu cores functioned as nucleating agents to guide the uniform nucleation and plating of Zn. Using such bifunctional CuNCs, the asymmetric cell achieves a Coulombic efficiency of 99.4% for over 1000 cycles, and the symmetric cell exhibits low voltage hysteresis and superior cycling over 400 h with a high depth of discharge of 40%. These findings may contribute to the design of multifunctional mediators at the atomic level.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"13 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142718986","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
Enhancing White Light-Emitting Diode Performance with Ultra-Wide Spectrum ZnS:Mn-CDs@SiO2 Dual Core@Shell Composite 利用超宽光谱 ZnS:Mn-CDs@SiO2 双核@壳复合材料提高白光发光二极管的性能
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-11-26 DOI: 10.1039/d4qi01099j
Yuanhui Zheng, Haijiang Qiu, Song Yang, Min Li, Haixin Chen, Yongqi Zhang, Xin Chen
{"title":"Enhancing White Light-Emitting Diode Performance with Ultra-Wide Spectrum ZnS:Mn-CDs@SiO2 Dual Core@Shell Composite","authors":"Yuanhui Zheng, Haijiang Qiu, Song Yang, Min Li, Haixin Chen, Yongqi Zhang, Xin Chen","doi":"10.1039/d4qi01099j","DOIUrl":"https://doi.org/10.1039/d4qi01099j","url":null,"abstract":"Recent progress in the field of carbon dots (CDs) has highlighted their significant potential, attributed to their exceptional optical properties and diverse applications, most notably in the realm of white light-emitting diodes (WLEDs). CDs are recognized for their broad spectrum of emission, adjustable fluorescence, and excellent thermal stability, making them ideal candidates for use in WLEDs. However, the challenge lies in synthesizing CDs that can emit long-wavelength, multicolor light from a single host material. This research presents a highly efficient dual-core-shell structured white-emitting phosphor, denoted as ZnS:Mn-CDs@SiO2, which has achieved an impressive photoluminescence quantum yield (PLQY) of 25.8% and an expansive full width at half maximum (FWHM) of 131 nm. The successful implementation of this novel material has led to the creation of WLEDs with Commission Internationale de l'Eclairage (CIE) coordinates at (0.32, 0.38) and a correlated color temperature (CCT) of 5856 K, marking a significant stride in the development of high-performance WLEDs.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"7 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142713124","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
Electron diffraction unveils the 2D metal-radical framework of two molecule-based magnets† 电子衍射揭示了两种分子磁体的二维金属-辐射框架。
IF 6.1 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-11-26 DOI: 10.1039/D4QI02257B
Emre Yörük, Constance Lecourt, Dominique Housset, Yuuta Izumi, Wai Li Ling, Stéphanie Kodjikian, Evgeny Tretyakov, Katsuya Inoue, Kseniya Maryunina, Cédric Desroches, Holger Klein and Dominique Luneau
{"title":"Electron diffraction unveils the 2D metal-radical framework of two molecule-based magnets†","authors":"Emre Yörük, Constance Lecourt, Dominique Housset, Yuuta Izumi, Wai Li Ling, Stéphanie Kodjikian, Evgeny Tretyakov, Katsuya Inoue, Kseniya Maryunina, Cédric Desroches, Holger Klein and Dominique Luneau","doi":"10.1039/D4QI02257B","DOIUrl":"10.1039/D4QI02257B","url":null,"abstract":"<p >Low-dose electron diffraction has been instrumental in determining the crystal structures of two compounds with metal-radical coordination frameworks {[Mn<small><sup>II</sup></small><small><sub>2</sub></small>(NITIm)<small><sub>3</sub></small>]CF<small><sub>3</sub></small>SO<small><sub>3</sub></small>·CH<small><sub>3</sub></small>OH}<small><sub><em>n</em></sub></small> (<strong>1</strong>) and {[Mn<small><sup>II</sup></small><small><sub>2</sub></small>(NITImMe<small><sub>2</sub></small>)<small><sub>3</sub></small>]ClO<small><sub>4</sub></small>}<small><sub><em>n</em></sub></small> (<strong>2</strong>) that could never be grown to a crystal size large enough for single-crystal X-ray diffraction characterization. The compounds crystallize as nanocrystals upon addition of triflate (<strong>1</strong>) and perchlorate (<strong>2</strong>) anions and coordination of manganese(<small>II</small>) with bis-chelate nitronyl nitroxide radicals NITImH (<strong>1</strong>) and NITImHMe<small><sub>2</sub></small> (<strong>2</strong>) which are respectively 2-(2-imidazolyl)- and 2-(4,5-dimethylimidazol-2-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1<em>H</em>-imidazol-3-oxide-1-oxyl. The two compounds have layered crystal structures in which cationic 2D metal-radical coordination polymers {[Mn<small><sup>II</sup></small><small><sub>2</sub></small>(NITIm)<small><sub>3</sub></small>]<small><sup>+</sup></small>}<small><sub><em>n</em></sub></small> (<strong>1</strong>) and {[Mn<small><sup>II</sup></small><small><sub>2</sub></small>(NITImMe<small><sub>2</sub></small>)<small><sub>3</sub></small>]<small><sup>+</sup></small>}<small><sub><em>n</em></sub></small> (<strong>2</strong>) are separated by layers of triflate (<strong>1</strong>) or perchlorate (<strong>2</strong>) anions. Magnetic measurements evidence a ferrimagnetic behavior within the 2D metal-radical sheets due to alternating antiferromagnetically coupled spins (<em>S</em><small><sub>Mn</sub></small><small><sup>2+</sup></small> = 5/2 and <em>S</em><small><sub>radical</sub></small> = 1/2). Both compounds exhibit a long-range 3D ordering of weak-ferromagnetic type due to spin canting with Curie temperatures <em>T</em><small><sub>c</sub></small> = 45 K (<strong>1</strong>) and 40 K (<strong>2</strong>). This is associated with a field-induced metamagnetic transition from antiferromagnetic to ferromagnetic coupling of 2D metal-radical sheets. Studies of the crystal structures allows to rationalize how the molecular structure of nitronyl nitroxide radicals and of the counter-anions along with crystal packing affect the magnetic behavior related to interlayer distance and framework flexibility. These results are striking evidence that electron crystallography is a unique tool to solve structures of metal–organic compounds crystallizing as nanocrystals even with nitronyl nitroxide radical components too sensitive to typical electron doses. Overcoming the crystal size barrier, it allows the validation of chemical syn","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":" 1","pages":" 328-341"},"PeriodicalIF":6.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142718988","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
Integrating multiple emission centers for photoluminescence regulation in copper–antimony/bismuth halides† 整合多个发射中心以调节铜锑/铋卤化物中的光致发光
IF 6.1 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-11-26 DOI: 10.1039/D4QI02614D
Abdusalam Ablez, Hao-Wei Lin, Sheng-Mao Zhang, Guo-Yang Chen, Jia-Hua Luo, Ke-Zhao Du, Ze-Ping Wang and Xiao-Ying Huang
{"title":"Integrating multiple emission centers for photoluminescence regulation in copper–antimony/bismuth halides†","authors":"Abdusalam Ablez, Hao-Wei Lin, Sheng-Mao Zhang, Guo-Yang Chen, Jia-Hua Luo, Ke-Zhao Du, Ze-Ping Wang and Xiao-Ying Huang","doi":"10.1039/D4QI02614D","DOIUrl":"10.1039/D4QI02614D","url":null,"abstract":"<p >Zero-dimensional (0-D) heterometallic halides containing multiple metal–halogen units are emerging optoelectronic materials with diverse photophysical properties. In this work, eight 0-D ionic compounds, including heterometallic halides [(Tp)<small><sub>3</sub></small>Cu<em>X</em>]<em>MX</em><small><sub>6</sub></small> (Tp = protonated thiomorpholine; <em>X</em> = Cl, Br; <em>M</em> = Sb, Bi), monometallic halides (Tp)<small><sub>3</sub></small><em>MX</em><small><sub>6</sub></small> (<em>M</em> = Bi when <em>X</em> = Cl; <em>M</em> = Bi, Sb when <em>X</em> = Br), and (Tp)Br have been synthesized. Their structures and photoluminescence have been comparatively studied. Inserting a Cu<em>X</em> unit into the three (Tp)<small><sup>+</sup></small> cation moieties of (Tp)<small><sub>3</sub></small><em>MX</em><small><sub>6</sub></small> results in the formation of [(Tp)<small><sub>3</sub></small>Cu<em>X</em>]<em>MX</em><small><sub>6</sub></small> with a complex cation of [(Tp)<small><sub>3</sub></small>Cu<em>X</em>]<small><sup>3+</sup></small>. The assembly of two distinct metal–halogen units in the heterometallic halide enables charge transfer between the complex cation and anion unit, as verified by DFT calculations, and meanwhile achieves the wide modulation of the luminescent color (green to red region) resulting from the integration of both complex cationic and anionic emission centers in one single lattice of [(Tp)<small><sub>3</sub></small>CuBr]<em>M</em>Br<small><sub>6</sub></small>. The luminescence mechanisms of monometallic and heterometallic halides are elucidated by detailed structural and spectral comparisons. Moreover, the compound [(Tp)<small><sub>3</sub></small>CuBr]SbBr<small><sub>6</sub></small> shows significant potential for low-temperature optical temperature sensing applications based on the fluorescence intensity ratio of its dual emissions, with absolute sensitivity (<em>S</em><small><sub>a</sub></small>) and relative sensitivity (<em>S</em><small><sub>r</sub></small>) values of 0.078 K<small><sup>−1</sup></small> and 5.38% K<small><sup>−1</sup></small>, respectively. This study not only provides a new strategy for developing heterometallic halide photoluminescence materials, but also offers new ideas for a better understanding of the photophysical mechanism of 0-D heterometallic halides.</p>","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":" 1","pages":" 369-378"},"PeriodicalIF":6.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142713123","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
Correction: Coordination tuning of Ni/Fe complex-based electrocatalysts for enhanced oxygen evolution 更正:基于镍/铁配合物的电催化剂的配位调整以提高氧的进化能力
IF 6.1 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-11-25 DOI: 10.1039/D4QI90086C
Hongbo Zhou, Xuan Hao, Jiexin Guan, Yilin Deng, Zi Wei, Yashu Liu and Guoxing Zhu
{"title":"Correction: Coordination tuning of Ni/Fe complex-based electrocatalysts for enhanced oxygen evolution","authors":"Hongbo Zhou, Xuan Hao, Jiexin Guan, Yilin Deng, Zi Wei, Yashu Liu and Guoxing Zhu","doi":"10.1039/D4QI90086C","DOIUrl":"10.1039/D4QI90086C","url":null,"abstract":"<p >Correction for ‘Coordination tuning of Ni/Fe complex-based electrocatalysts for enhanced oxygen evolution’ by Hongbo Zhou <em>et al.</em>, <em>Inorg. Chem. Front.</em>, 2024, <strong>11</strong>, 8110–8122, https://doi.org/10.1039/D4QI01934B.</p>","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":" 24","pages":" 8953-8953"},"PeriodicalIF":6.1,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/qi/d4qi90086c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142696656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rapid room-temperature H2S detection based on Bi2S3/CuO heterostructures: the synergy of increased surface-adsorbed oxygen and heterojunction effect 基于 Bi2S3/CuO 异质结构的室温 H2S 快速检测:表面吸附氧增加与异质结效应的协同作用
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-11-25 DOI: 10.1039/d4qi01542h
Chengcheng Hu, Meiling Yu, Zhenze Zhou, Chenda Wei, You Wang, Juanyuan Hao
{"title":"Rapid room-temperature H2S detection based on Bi2S3/CuO heterostructures: the synergy of increased surface-adsorbed oxygen and heterojunction effect","authors":"Chengcheng Hu, Meiling Yu, Zhenze Zhou, Chenda Wei, You Wang, Juanyuan Hao","doi":"10.1039/d4qi01542h","DOIUrl":"https://doi.org/10.1039/d4qi01542h","url":null,"abstract":"Transition metal dichalcogenides (TMDCs)/metal oxide are increasing recognized as competitive sensing materials to detect at room temperature (RT). However, the unsatisfactory properties causing by low sensitivity, slow response, and weak discriminating ability towards interfering gases preclude their further applications in advanced sensing platforms. Herein, a Bi2S3/CuO heterostructure was demonstrated for H2S detection with highly sensitive and rapidly responding at RT. The Bi2S3/CuO sensor exhibited a greatly improved response (31.2 to 1 ppm H2S) with impressive response kinetics (7.5 s), surpassing that of pure Bi2S3 by a factor of 5 and 17, respectively. Besides, the sensor exhibits outstanding selectivity, repeatability, low detection limit (25 ppb), humidity tolerance and long-term stability. The distinctive enhancement of sensing capabilities primarily results from the synergistic influence of the heterostructure configuration and increased surface-adsorbed oxygen. The strategy of constructing heterostructures between a metal oxide and TMDC offers fundamental insights to develop room-temperature sensors.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"64 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142696658","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
Critical assessment of the exsolution process in Cu-doped SrTiO3 by a combined spectroscopic approach† 利用组合光谱法对掺铜 SrTiO3 中的溶出过程进行严格评估。
IF 6.1 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-11-22 DOI: 10.1039/D4QI02391A
Pietro Mariani, Xiao Sun, Simone Mascotto, Luisa Raimondo, Adele Sassella, Damiano Monticelli, Enrico Berretti, Alessandro Lavacchi, Matus Stredansky, Cinzia Cepek, Silvia Mostoni, Carlo Santoro, Barbara Di Credico, Roberto Scotti and Massimiliano D'Arienzo
{"title":"Critical assessment of the exsolution process in Cu-doped SrTiO3 by a combined spectroscopic approach†","authors":"Pietro Mariani, Xiao Sun, Simone Mascotto, Luisa Raimondo, Adele Sassella, Damiano Monticelli, Enrico Berretti, Alessandro Lavacchi, Matus Stredansky, Cinzia Cepek, Silvia Mostoni, Carlo Santoro, Barbara Di Credico, Roberto Scotti and Massimiliano D'Arienzo","doi":"10.1039/D4QI02391A","DOIUrl":"10.1039/D4QI02391A","url":null,"abstract":"<p >The surface transformation and defect evolution of Cu-doped SrTiO<small><sub>3</sub></small> upon copper exsolution have been studied by exploiting a multi-technique approach which integrates, for the first time, common methods describing exsolution like XAS, XPS and STEM with unconventional strategies, namely electron paramagnetic resonance (EPR) and UV-Vis diffuse reflectance (UV-DRS). XAS and EPR indicated that copper is present in the matrix in a disordered coordination environment as amorphous Cu<small><sub>2</sub></small>O and CuO located at the surface and as substitutional Cu<small><sup>2+</sup></small> lattice species with a distorted octahedral structure. Interestingly, EPR unveiled that, during exsolution, Cu<small><sup>2+</sup></small> surface sites with disordered coordination primarily migrate undergoing selective reduction, while a delay is observed for the lattice defects. UV-DRS resulted in a valid alternative to HRTEM to determine the size of exsolved nanoparticles by tracking the plasmon resonance effect. Moreover, when XANES showed the complete regain of the pristine state of Cu after reoxidation, both UV-DRS and EPR highlighted that the original features are not entirely restored. These outcomes suggest that the chemical environment of exsolvable species is much more heterogeneous and the exsolution process much less straightforward than expected. Thus, alternative and original characterization techniques should be exploited to provide a solid methodological benchmark for an effective evaluation of this phenomenon.</p>","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":" 1","pages":" 311-327"},"PeriodicalIF":6.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/qi/d4qi02391a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142684775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
G-quadruplex-guided bifunctional platinum complex induce multiple pyroptosis pathways for antitumor therapy G-四链引导的双功能铂复合物可诱导多种热解途径用于抗肿瘤治疗
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-11-22 DOI: 10.1039/d4qi02098g
Tian-Zhu Ma, Liu-Yi Liu, You-Liang Zeng, Ke Ding, Wenting Liu, Xushen Xiong, Zong-Wan Mao
{"title":"G-quadruplex-guided bifunctional platinum complex induce multiple pyroptosis pathways for antitumor therapy","authors":"Tian-Zhu Ma, Liu-Yi Liu, You-Liang Zeng, Ke Ding, Wenting Liu, Xushen Xiong, Zong-Wan Mao","doi":"10.1039/d4qi02098g","DOIUrl":"https://doi.org/10.1039/d4qi02098g","url":null,"abstract":"G-quadruplexes (G4s), as a special nucleic acid secondary structure, is a promising therapeutic target for enhancing immune response. We designed a bifunctional (two Pt-Cl bond) PyPDSplatin complex (BiPP) by coupling PyPDS with cisplatin.Due to the retention of two chlorine atoms, BiPP can covalently bind to two sites on G4s, thereby enhancing binding stability. BiPP retains the classical cisplatin structure, which helps to maintain it in a neutral or weakly charged state, facilitating the passage of dichloroplatin complexes across the cell membrane. BiPP not only significantly bolstered the antitumor efficacy of chemotherapy but also induced the damage to G4s, facilitating their efflux from the nucleus and thereby activating the synergistic interplay between the absent in melanoma 2-apoptosis-associated speck-like protein containing a CARD (AIM2-ASC) and cyclic GMP-AMP synthase-stimulator of the interferon gene (cGAS-STING) pathways. Moreover, BiPP initiated a molecular cascade that triggers pyroptosis by down-regulating baculoviral IAP repeat containing 7 (BIRC7) gene expression. During this process, caspase-3 is activated to cleave gasdermin E (GSDME), releasing its N-terminal domain(GSDNE-N), which subsequently instigates pyroptosis. This interaction culminates in the formation of a highly integrated antitumor immune network in conjunction with the BIRC7-caspase-3-GSDME system. Our findings not only unveil the pivotal role played by the G4s in the context of antitumor immunity, but also open an avenue for the application of G4-guided chemotherapy agents in immunotherapy.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"34 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142684776","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
Developments and Perspectives of Transition Metal-Nitrogen-Carbon Catalysts with Regulated Coordination Environment for Enhanced Oxygen Reduction Reaction Performance 具有调节配位环境的过渡金属-氮-碳催化剂在提高氧还原反应性能方面的发展与展望
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-11-21 DOI: 10.1039/d4qi02430c
Wei-Wei Zhao, Wen-Jun Niu, Ru-Ji Li, Bing-Xin Yu, Chen-Yu Cai, Fu-Ming Wang, Li-Yang Xu
{"title":"Developments and Perspectives of Transition Metal-Nitrogen-Carbon Catalysts with Regulated Coordination Environment for Enhanced Oxygen Reduction Reaction Performance","authors":"Wei-Wei Zhao, Wen-Jun Niu, Ru-Ji Li, Bing-Xin Yu, Chen-Yu Cai, Fu-Ming Wang, Li-Yang Xu","doi":"10.1039/d4qi02430c","DOIUrl":"https://doi.org/10.1039/d4qi02430c","url":null,"abstract":"The sluggish kinetics of oxygen reduction reaction (ORR) at the cathode in those proton exchange membrane fuel cells (PEMFCs) and metal-air batteries usually require high-performance catalysts to reduce the reaction overpotential for practical applications. Among various electrocatalysts, the most effective platinum group metal (PGM) catalysts suffer from the drawbacks of high cost, scarcity, and poor cycling stability. Platinum group metal-free (PGM-free) catalysts, especially transition metal and nitrogen co-doped carbon (TM-N-C) catalysts, including single atom catalysts, single atom and clusters/nanoparticles catalysts have received increasing attention due to their low-cost, high atom-utilization and remarkable ORR performance recently. However, the TM-N-C catalysts with different local coordination environments typically exhibit completely different ORR catalytic activity and selectivity in both alkaline and acidic media. Therefore, the research progresses of TM-N-C catalysts with regulated coordination environment for enhanced ORR performance are systematically summarized in this review. Specially, the strategies for regulating the coordination environment of TM-N-C catalysts are emphasized, including coordination number regulation, types of N regulation, heteroatom coordination or doping in M-Nx, and synergies of clusters or nanoparticles to M-Nx. Finally, key challenges and prospects regarding the future development of catalysts with regulated coordination environment for ORR in the emerging field are discussed.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"20 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142684854","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
Chemical substitution towards a rare-earth borate deep ultraviolet NLO crystal exhibiting a strong SHG response 化学置换出具有强烈 SHG 响应的稀土硼酸盐深紫外 NLO 晶体
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-11-21 DOI: 10.1039/d4qi02469a
xianghao Kong, Jing Chai, Huijian Zhao, Ning Ye, Zhanggui Hu, Yicheng Wu, Conggang Li
{"title":"Chemical substitution towards a rare-earth borate deep ultraviolet NLO crystal exhibiting a strong SHG response","authors":"xianghao Kong, Jing Chai, Huijian Zhao, Ning Ye, Zhanggui Hu, Yicheng Wu, Conggang Li","doi":"10.1039/d4qi02469a","DOIUrl":"https://doi.org/10.1039/d4qi02469a","url":null,"abstract":"The fabrication of nonlinear optical (NLO) materials that exhibits both pronounced second harmonic generation (SHG) response and broad ultraviolet (UV) transmission range remains a big challenge. In this study, we employed a flux method to extract a potential rare-earth borate UV NLO crystal, K7.5Lu2.5B15O30, by chemical cosubstitution strategy. The title compound crystallizes into a trigonal space group R32 with a three-dimensional structural framework consisting of [B5O10] and [LuO6] groups. Remarkably, K7.5Lu2.5B15O30 possesses a notably short cutoff edge of 198 nm and a wide band gap of 6.3 eV. Moreover, it demonstrates a strong phase-matched SHG efficiency of 1.2×KDP, which represents an optimal balance between a strong NLO effect and a wide UV transmission range. Besides, theoretical calculations and structural analyses unveil that the NLO properties observed in K7.5Lu2.5B15O30 are primarily attributable to the synergistic effect of the [B5O10] groups and [LuO6] octahedra. These findings indicate that K7.5Lu2.5B15O30 has potential applications as beryllium-free UV NLO materials","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"2 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142678681","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}
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