Inorganic Chemistry Frontiers最新文献

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Regulating Photocatalysis by External-Stimuli Manipulation of Microenvironment in Europium-Organic Frameworks 通过外部刺激操纵铕-有机框架中的微环境来调节光催化作用
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-07-12 DOI: 10.1039/d4qi01226g
Xin Lu, Yifan Li, Chen-Li Wang, Jing-Yi Gao, Yi Zhou, Chuan-Lei Zhang
{"title":"Regulating Photocatalysis by External-Stimuli Manipulation of Microenvironment in Europium-Organic Frameworks","authors":"Xin Lu, Yifan Li, Chen-Li Wang, Jing-Yi Gao, Yi Zhou, Chuan-Lei Zhang","doi":"10.1039/d4qi01226g","DOIUrl":"https://doi.org/10.1039/d4qi01226g","url":null,"abstract":"Although catalysis is highly dependent on the catalytic active site, accurately regulating the microenvironment around the active site is an important way to improve the overall performance of catalysts. Herein, an Eu-based MOF with rod-shaped SBU was obtained through self-assembly strategy, named Eu-MOF-T (T = temperature). Eu-MOF-T can absolutely and kinetically transform into another structure, Eu-MOF-S (S = solvent), under the stimulus in different solvents. Interestingly, Eu-MOF-S is able to convert into Eu-MOF-T absolutely and thermodynamically upon temperature stimulation. These transformations are mainly caused by microenvironmental changes, including ligand torsion angle and cavity volume in the structure, and take place in the form of single-crystal-to-single-crystal. Incredibly, Eu-MOF-S exhibits a halved cavity volume due to the bending of the ligand, yet demonstrates a superior photocatalytic CO2RR capacity of 7886.1 μmol · g-1 · h-1, while Eu-MOF-T, which possesses a larger cavity porosity, is only 599.7 μmol · g-1 · h-1. Theoretical calculations further reveal that the Eu-MOF-S is more favorable for the formation of COOH* and promotes its further conversion to CO during CO2RR.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597296","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
Anisotropic X-ray Photovoltaics in 2D Trilayered Hybrid Perovskite EA4Pb3Br10 Single Crystals with Low Detection Limit 低检测限二维三层混合包晶 EA4Pb3Br10 单晶中的各向异性 X 射线光伏技术
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-07-12 DOI: 10.1039/d4qi00934g
Kewen Tao, Chenwei Xiong, Hui Yang, Hao Lin, D. C. Ma, Huashan Li, Shaopeng Lin, Biao Wang
{"title":"Anisotropic X-ray Photovoltaics in 2D Trilayered Hybrid Perovskite EA4Pb3Br10 Single Crystals with Low Detection Limit","authors":"Kewen Tao, Chenwei Xiong, Hui Yang, Hao Lin, D. C. Ma, Huashan Li, Shaopeng Lin, Biao Wang","doi":"10.1039/d4qi00934g","DOIUrl":"https://doi.org/10.1039/d4qi00934g","url":null,"abstract":"Two-dimensional (2D) hybrid perovskite ferroelectrics, characterized by highly tunable structure and intrinsic structural anisotropy, have emerged as promising materials for photodetection and X-ray detection, thanks to their outstanding photoelectric properties. Despite recent blooming advances, the relationship between structure and properties in 2D perovskite ferroelectrics remains unclear. In this study, we conducted a comprehensive analysis of the photoelectric properties along the crystallographic axes of the 2D perovskite ferroelectric EA<small><sub>4</sub></small>Pb<small><sub>3</sub></small>Br<small><sub>10</sub></small> (EA = ethylammonium), achieving successful X-ray detection at zero bias through bulk photovoltaic effects (BPVEs). The EA<small><sub>4</sub></small>Pb<small><sub>3</sub></small>Br<small><sub>10</sub></small> single crystals (SCs) exhibited notably anisotropic behaviors in dielectric properties, conductivity and carrier transport. Significant piezoelectric response of 3 and 6 pC/N were measured along the a- and c-axes, respectively, confirming the material’s polar nature. Photodetectors fabricated from poled EA<small><sub>4</sub></small>Pb<small><sub>3</sub></small>Br<small><sub>10</sub></small> SCs showcased pronounced anisotropic BPVEs, with an open-circuited photovoltage of approximately 0.5 V along the a- and c-axes and an ultrafast response time of about 20/120 ns. The temperature-dependent photovoltaic currents of EA<small><sub>4</sub></small>Pb<small><sub>3</sub></small>Br<small><sub>10</sub></small> indicated that BPVEs are initially linked to its ferroelectricity. Leveraging the superior BPVEs and anisotropic properties, EA<small><sub>4</sub></small>Pb<small><sub>3</sub></small>Br<small><sub>10</sub></small> SCs demonstrated distinctive anisotropic X-ray responses, achieving a high sensitivity of 1251 µC Gyair<small><sup>−1</sup></small>cm<small><sup>−2</sup></small> and a low detection limit 56 nGyair s<small><sup>-1</sup></small> at 0 V bias. This study not only elucidates the anisotropic structure-property relation in 2D perovskite ferroelectric, but also underscores their significant potential for self-powered X-ray detection application.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597295","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
Supramolecular delivery of dinuclear ruthenium and osmium MCU inhibitors 双核钌和锇 MCU 抑制剂的超分子传递
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-07-11 DOI: 10.1039/d4qi01102c
Nicholas P. Bigham, Robyn J. Novorolsky, Keana R. Davis, Haipei Zou, Samantha N. MacMillan, Michael J. Stevenson, George S. Robertson, Justin J. Wilson
{"title":"Supramolecular delivery of dinuclear ruthenium and osmium MCU inhibitors","authors":"Nicholas P. Bigham, Robyn J. Novorolsky, Keana R. Davis, Haipei Zou, Samantha N. MacMillan, Michael J. Stevenson, George S. Robertson, Justin J. Wilson","doi":"10.1039/d4qi01102c","DOIUrl":"https://doi.org/10.1039/d4qi01102c","url":null,"abstract":"The transmembrane protein known as the mitochondrial calcium uniporter (MCU) mediates the influx of calcium ions (Ca<small><sup>2+</sup></small>) into the mitochondrial matrix. An overload of mitochondrial Ca<small><sup>2+</sup></small> (<small><sub><em>m</em></sub></small>Ca<small><sup>2+</sup></small>) is directly linked to damaging effects in pathological conditions. Therefore, inhibitors of the MCU are important chemical biology tools and therapeutic agents. Here, two new analogues of previously reported Ru- and Os-based MCU inhibitors Ru265 and Os245, of the general formula [(C<small><sub>10</sub></small>H<small><sub>15</sub></small>CO<small><sub>2</sub></small>)M(NH<small><sub>3</sub></small>)<small><sub>4</sub></small>(μ-N)M(NH<small><sub>3</sub></small>)<small><sub>4</sub></small>(O<small><sub>2</sub></small>CC<small><sub>10</sub></small>H<small><sub>15</sub></small>)](CF<small><sub>3</sub></small>SO<small><sub>3</sub></small>)<small><sub>3</sub></small>, where M = Ru (<strong>1</strong>) or Os (<strong>2</strong>), are reported. These analogues bear adamantane functional groups, which were installed to act as guests for the host molecule cucurbit-[7]-uril (CB[7]). These complexes were characterized and analyzed for their efficiency as guests for CB[7]. As shown through a variety of spectroscopic techniques, each adamantane ligand is encapsulated into one CB[7], affording a supramolecular complex of 1 : 2 stoichiometry. The biological effects of these compounds in the presence and absence of two equiv. CB[7] were assessed. Both complexes <strong>1</strong> and <strong>2</strong> exhibit enhanced cellular uptake compared to the parent compounds Ru265 and Os245, and their uptake is increased further in the presence of CB[7]. Compared to Ru265 and Os245, <strong>1</strong> and <strong>2</strong> are less potent as <small><sub><em>m</em></sub></small>Ca<small><sup>2+</sup></small> uptake inhibitors in permeabilized cell models. However, in intact cell systems, <strong>1</strong> and <strong>2</strong> inhibit the MCU at concentrations as low as 1 μM, marking an advantage over Ru265 and Os245 which require an order of magnitude higher doses for similar biological effects. The presence of CB[7] did not affect the inhibitory properties of <strong>1</strong> and <strong>2</strong>. Experiments in primary cortical neurons showed that <strong>1</strong> and <strong>2</strong> can elicit protective effects against oxygen-glucose deprivation at lower doses than those required for Ru265 or Os245. At low concentrations, the protective effects of <strong>1</strong> were modulated by CB[7], suggesting that supramolecular complex formation can play a role in these biological conditions. The <em>in vivo</em> biocompatibility of <strong>1</strong> was investigated in mice. The intraperitoneal administration of these compounds and their CB[7] complexes led to time-dependent induction of seizures with no protective effects elicited by CB[7]. This work demonst","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141584520","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
Solution blow spinning of elastic 3D complex ZrO2@mullite nanofibrous aerogels toward customized thermal insulation 溶液吹旋弹性三维复合 ZrO2@ 莫来石纳米纤维气凝胶,用于定制隔热材料
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-07-10 DOI: 10.1039/d4qi01112k
Wenlu Zhang, Mengzhe Bao, Mengyao Chen, Wenbin Li, Weilin Xu, Chong He
{"title":"Solution blow spinning of elastic 3D complex ZrO2@mullite nanofibrous aerogels toward customized thermal insulation","authors":"Wenlu Zhang, Mengzhe Bao, Mengyao Chen, Wenbin Li, Weilin Xu, Chong He","doi":"10.1039/d4qi01112k","DOIUrl":"https://doi.org/10.1039/d4qi01112k","url":null,"abstract":"High-performance aerogel materials hold significant potential for thermal management applications. However, the widespread utilization of conventional ceramic granular aerogels is constrained by their inherent brittleness and rigidity. Herein, an additive blow spinning strategy is introduced for fabricating 3D ZrO<small><sub>2</sub></small>@mullite nanofibrous aerogels with complex morphologies and lamellar structures. A spinnable solution comprising polysiloxane and polyaluminum was synthesized and blow spinning was carried out at a high flow rate, typically ranging from 10 to 30 mL h<small><sup>−1</sup></small>. By incorporating ZrO<small><sub>2</sub></small> nanocrystals as a reinforcing phase, ZrO<small><sub>2</sub></small>@mullite nanofibers with enhanced mechanical properties are produced through pyrolysis. Utilizing a customized additive spinning strategy, 3D ZrO<small><sub>2</sub></small>@mullite fibrous aerogels with various complex morphologies (such as conical and cubic) and lamellar structures are achieved. Inter-layer spaces of fibrous aerogels can be controlled within 20–100 μm, while the fiber diameter varies in the 0.5–1.5 μm range. These 3D ZrO<small><sub>2</sub></small>@mullite fibrous aerogels showcase remarkable attributes including high compressibility over 60%, high-temperature resistance up to 1300 °C and remarkable bendability of around 360°, and their thermal conductivity remains between 0.01 and 0.026 W m<small><sup>−1</sup></small> K<small><sup>−1</sup></small>, which paves the way for further advancements in tailored fibrous aerogels.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141566077","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
An Insoluble p-Type Organic Polymer Cathode with 9,9'-Bicarbazole Core for Highly Stable Li/Na/K-Based Dual-Ion Full Batteries 一种具有 9,9'-联咔唑核心的不溶性 p 型有机聚合物阴极,可用于高稳定性锂/镎/钾基双离子全电池
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-07-09 DOI: 10.1039/d4qi01364f
Kexin Fan, Huilin Ma, Wu Tang, Wenjun Li, Shan Jia, Jiahui Hu, Xinyu Liu, Yuanhe Zhang, Cong Fan
{"title":"An Insoluble p-Type Organic Polymer Cathode with 9,9'-Bicarbazole Core for Highly Stable Li/Na/K-Based Dual-Ion Full Batteries","authors":"Kexin Fan, Huilin Ma, Wu Tang, Wenjun Li, Shan Jia, Jiahui Hu, Xinyu Liu, Yuanhe Zhang, Cong Fan","doi":"10.1039/d4qi01364f","DOIUrl":"https://doi.org/10.1039/d4qi01364f","url":null,"abstract":"A p-type organic polymer cathode called poly[bicarbazole-alt-dihydrophenazine] (P(BCz4PZ)) is designed for dual-ion batteries (DIBs). P(BCz4PZ) can stably store PF6- anions above 3 V versus Li/Na/K-metal anodes, bringing in a theoretical specific capacity (CT) of ~155 mAh g-1. Meanwhile, P(BCz4PZ) can show the high initial columbic efficiency values of 91%/87%/96% in Li/Na/K-based half cells. Consequently, the Li/Na/K-based dual-ion full batteries can be fabricated by using P(BCz4PZ) as the universal cathode without any pretreatments, as well as the low-cost graphite (C)/hard carbon (HC)/graphite (C) as the related anodes respectively. The three full batteries can deliver the peak discharge capacities of 115/122/122 mAh g-1cathode and the high average discharge voltages of 3.29/3.3/2.8 V, corresponding to the high energy densities of 193/185/140 Wh kg-1 based on total mass (cathode+anode+electrolyte), respectively. Except for Li element, the electrodes in our three dual-ion full battery systems are composed of the cost-effective and readily-accessible elements of C, H, N, P, F, Na and K.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141566085","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
A WS2/Co9S8 heterostructure with a carbon layer anchored in nitrogen-doped graphene foam as an anode for boosting lithium storage 将带有碳层的 WS2/Co9S8 异质结构锚定在掺氮石墨烯泡沫中,作为促进锂存储的负极
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-07-09 DOI: 10.1039/d4qi01221f
Guijie Chen, Xinyue Jiang, Chen Huang, Junye Zhang, Mingyi Wang, Wenqi Tan, Likang Qin, Linlin Wang, Shigang Lu, Luyang Chen
{"title":"A WS2/Co9S8 heterostructure with a carbon layer anchored in nitrogen-doped graphene foam as an anode for boosting lithium storage","authors":"Guijie Chen, Xinyue Jiang, Chen Huang, Junye Zhang, Mingyi Wang, Wenqi Tan, Likang Qin, Linlin Wang, Shigang Lu, Luyang Chen","doi":"10.1039/d4qi01221f","DOIUrl":"https://doi.org/10.1039/d4qi01221f","url":null,"abstract":"In this work, globular WS<small><sub>2</sub></small>/Co<small><sub>9</sub></small>S<small><sub>8</sub></small> nanoflowers coated with nitrogen-doped carbon (NC) and anchored on nitrogen-doped porous graphene (NPG) foam (NPG@WS<small><sub>2</sub></small>/Co<small><sub>9</sub></small>S<small><sub>8</sub></small>@NC) were successfully fabricated <em>via</em> solvothermal and chemical vapor deposition methods. The WS<small><sub>2</sub></small>/Co<small><sub>9</sub></small>S<small><sub>8</sub></small> heterostructure has the ability to generate an internal electric field that acts as a powerful driving factor for charge transport. The NC layer and three-dimensional NPG foam provide a special structure for the stabilization of WS<small><sub>2</sub></small> nanosheets and Co<small><sub>9</sub></small>S<small><sub>8</sub></small> nanoparticles, which not only increases its conductivity and expands the layer spacing, but also mitigates structural changes in electrode materials during charge and discharge. When NPG@WS<small><sub>2</sub></small>/Co<small><sub>9</sub></small>S<small><sub>8</sub></small>@NC is treated as the anode in a lithium-ion battery (LIB), a capacity of 952 mA h g<small><sup>−1</sup></small> at 1 A g<small><sup>−1</sup></small> can be achieved even after 600 cycles. The combined effect of self-supported electrodes and heterostructures has given us some new opportunities for improving the capability of anode components in LIBs.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141566079","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
Hetero-nanojunction armored with carbon layer for boosting water oxidation over RuO2 in acid 铠装碳层的异质纳米结促进 RuO2 在酸中的水氧化作用
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-07-09 DOI: 10.1039/d4qi00932k
Fanfan Shang, Huijie He, Yuan Lin, Bei An, Hairui Cai, Xiaoqian Li, Weitong Wang, Chao Liang, Shengchun Yang, Bin Wang
{"title":"Hetero-nanojunction armored with carbon layer for boosting water oxidation over RuO2 in acid","authors":"Fanfan Shang, Huijie He, Yuan Lin, Bei An, Hairui Cai, Xiaoqian Li, Weitong Wang, Chao Liang, Shengchun Yang, Bin Wang","doi":"10.1039/d4qi00932k","DOIUrl":"https://doi.org/10.1039/d4qi00932k","url":null,"abstract":"In this work, a high-performance electrocatalyst, (Co<small><sub>3</sub></small>O<small><sub>4</sub></small>|RuO<small><sub>2</sub></small>)@C, was developed for the oxygen evolution reaction (OER) in acid. Despite the low loading of Ru (0.66 wt%) and Co (0.35 wt%), the catalyst exhibited remarkable performance, achieving an overpotential of 202 mV at 10 mA cm<small><sup>−2</sup></small>. Notably, when employed as an anodic catalyst in a proton exchange membrane (PEM) electrolyzer, (Co<small><sub>3</sub></small>O<small><sub>4</sub></small>|RuO<small><sub>2</sub></small>)@C demonstrated exceptional stability, operating continuously for 300, 100, and 100 h at current densities of 10, 50, and 100 mA cm<small><sup>−2</sup></small>, respectively. Experiments and theoretical investigations revealed that the regulated electronic structure of RuO<small><sub>2</sub></small> by the Co<small><sub>3</sub></small>O<small><sub>4</sub></small>|RuO<small><sub>2</sub></small> nanojunction, coupled with the carbon coating layer, led to excellent OER performance of (Co<small><sub>3</sub></small>O<small><sub>4</sub></small>|RuO<small><sub>2</sub></small>)@C. The construction of the Co<small><sub>3</sub></small>O<small><sub>4</sub></small>|RuO<small><sub>2</sub></small> nanojunction triggered the electron transfer from Co<small><sub>3</sub></small>O<small><sub>4</sub></small> to RuO<small><sub>2</sub></small>, decreasing the energy barrier of *O → *OOH and mitigating the over-oxidation of Ru sites. Furthermore, the carbon layer surrounding the crystalline Co<small><sub>3</sub></small>O<small><sub>4</sub></small>|RuO<small><sub>2</sub></small> facilitated mass/charge transfer across the electrolyte-catalyst interface and acted as a protective “chain mail” to enhance the durability of (Co<small><sub>3</sub></small>O<small><sub>4</sub></small>|RuO<small><sub>2</sub></small>)@C.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141566155","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
[Sn3OF]PO4 vs [Sn3F3]PO4: Enhancing Birefringence through Breaking R3 Symmetry and Realigning Lone Pairs [Sn3OF]PO4与[Sn3F3]PO4:通过打破R3对称性和重新排列孤对来增强双折射性
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-07-09 DOI: 10.1039/d4qi01203h
Yu-Yan Hu, Xi Xu, Rui-Xi Wang, Jing-Yun Han, Shun-Song Zhang, Shu-Hui Zhang, Jing-Yu Guo, Li-Ming Wu, Ling Chen
{"title":"[Sn3OF]PO4 vs [Sn3F3]PO4: Enhancing Birefringence through Breaking R3 Symmetry and Realigning Lone Pairs","authors":"Yu-Yan Hu, Xi Xu, Rui-Xi Wang, Jing-Yun Han, Shun-Song Zhang, Shu-Hui Zhang, Jing-Yu Guo, Li-Ming Wu, Ling Chen","doi":"10.1039/d4qi01203h","DOIUrl":"https://doi.org/10.1039/d4qi01203h","url":null,"abstract":"Tin(II)-containing phosphates as promising candidates for designing and searching materials with enhanced birefringence. Herein, we present a novel [Sn3OF]PO4 compound exhibiting significant birefringence (∆nobv = 0.117 at 546 nm), a five-fold improvement compared to that of a related compound [Sn3F3]PO4 discovered nearly 40 years ago. The remarkable enhancement in birefringence is primarily attributed to the isotropic [SnO3F]5- structure building unit. By simple regulation of the F/O ratio, the undesirable R3 symmetry in [Sn3F3]PO4 is disrupted. This regulation also realigns the lone pairs, resulting in substantial optical anisotropy.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141566078","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
Electronic metal–support interaction via Ni defect-induced Ru-modified Ni–CeO2 for enhanced hydrogen oxidation activity 通过镍缺陷诱导的 Ru 改性 Ni-CeO2 实现电子金属-支撑相互作用,从而提高氢氧化活性
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-07-09 DOI: 10.1039/d4qi01233j
Shuqing Zhou, Yi Liu, Lianrui Cheng, Tayirjan Taylor Isimjan, Jianniao Tian, Xiulin Yang
{"title":"Electronic metal–support interaction via Ni defect-induced Ru-modified Ni–CeO2 for enhanced hydrogen oxidation activity","authors":"Shuqing Zhou, Yi Liu, Lianrui Cheng, Tayirjan Taylor Isimjan, Jianniao Tian, Xiulin Yang","doi":"10.1039/d4qi01233j","DOIUrl":"https://doi.org/10.1039/d4qi01233j","url":null,"abstract":"The creation of refined surface vacancies, a crucial bridge between theoretical structural studies and catalyst design, has attracted significant attention. Herein, we utilize a MOF pyrolytic derivatization strategy to create monodispersed Ru nanoparticles anchored on Ni–CeO<small><sub>2</sub></small> mesoporous microspheres with abundant Ni vacancies (Ru/Ni–CeO<small><sub>2</sub></small>). Introducing nickel vacancies in Ru/Ni–CeO<small><sub>2</sub></small> is conducive to enhancing electrical conductivity and accelerating mass-charge transfer efficiency. As anticipated, the Ru/Ni–CeO<small><sub>2</sub></small> displays admirable hydrogen oxidation reaction (HOR) electrocatalytic activity with exchange current density (<em>j</em><small><sub>0</sub></small>) and mass activity reaching 3.27 mA cm<small><sup>−2</sup></small> and 1.93 mA g<small><sub>Ru</sub></small><small><sup>−1</sup></small>, respectively, surpassing the values for cutting-edge Pt/C and most recorded Ru-based HOR electrocatalysts. Surprisingly, Ru/Ni–CeO<small><sub>2</sub></small> demonstrates robust tolerance to 1000 ppm CO, outperforming Pt/C. Integrated analysis suggests that Ni defect-induced directional electron transfer at the Ru/Ni–CeO<small><sub>2</sub></small> heterointerface arises from a strong electron–metal support interaction (EMSI) effect between Ru and Ni–CeO<small><sub>2</sub></small>. This interaction optimizes the adsorption of H and OH, thereby enhancing HOR behavior.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141566075","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
Zirconium-based metal–organic frameworks: the relation between linker connectivity, structure stability, and catalytic activity towards organophosphates 锆基金属有机框架:连接体连通性、结构稳定性与有机磷催化活性之间的关系
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2024-07-09 DOI: 10.1039/d4qi01366b
Daniel Bůžek, Jan Hynek, Matouš Kloda, Veronika Zlámalová, Petr Bezdička, Slavomír Adamec, Kamil Lang, Jan Demel
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