Inorganic Chemistry Frontiers最新文献

筛选
英文 中文
Broad-Spectrum Suppression and Disassembly of α-Synuclein Variant Aggregates Mediated by a Ruthenium Metallodrug via Conserved Metal-Coordination 钌金属药物通过保守金属配位介导的α-突触核蛋白变异聚集体的广谱抑制和分解
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-10-11 DOI: 10.1039/d5qi01863c
Shenghu Wang, Weiwei Wu, Lili Sun, Siming Yuan, Wanqian Wei, Kaiming Cao, Yangzhong Liu
{"title":"Broad-Spectrum Suppression and Disassembly of α-Synuclein Variant Aggregates Mediated by a Ruthenium Metallodrug via Conserved Metal-Coordination","authors":"Shenghu Wang, Weiwei Wu, Lili Sun, Siming Yuan, Wanqian Wei, Kaiming Cao, Yangzhong Liu","doi":"10.1039/d5qi01863c","DOIUrl":"https://doi.org/10.1039/d5qi01863c","url":null,"abstract":"Inhibiting α-synuclein (α-Syn) aggregation is a promising therapeutic strategy for Parkinson's disease (PD); however, its structural disorder and heterogeneity of aggregates across familial variants pose significant challenges. Here, we demonstrate that NAMI-A, a ruthenium-based compound effectively inhibits aggregation of wildtype and pathogenic familial α-Syn variants. Biophysical and biochemical analyses revealed that NAMI-A binds α-Syn via coordination to conserved regions, preventing the structural transition to β-sheet and inhibiting aggregation. Notably, NAMI-A dismantles preformed aggregates of diverse structures from various pathogenic variants. Cellular assays confirmed that NAMI-A significantly reduces α-Syn-induced cytotoxicity in neuronal cells by attenuating ROS generation. This work establishes that metallo-agents can act as broad-spectrum therapeutic agents to overcome mutation-dependent limitations for PD treatment.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"11 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261028","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
Membrane-Shaped MOF Proton Conductors 膜状MOF质子导体
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-10-10 DOI: 10.1039/d5qi01763g
Lei Wu, Kaixi Lan, Yaocheng Han, Yanting Zhang, Yian Shi, Dongyang Han, Kun Zhang, Manni Li
{"title":"Membrane-Shaped MOF Proton Conductors","authors":"Lei Wu, Kaixi Lan, Yaocheng Han, Yanting Zhang, Yian Shi, Dongyang Han, Kun Zhang, Manni Li","doi":"10.1039/d5qi01763g","DOIUrl":"https://doi.org/10.1039/d5qi01763g","url":null,"abstract":"The escalating global energy demand has spurred intensive research into alternative energy technologies, among which proton-exchange membrane fuel cells (PEMFCs) stand out for their high efficiency and environmental benignity. However, conventional proton conductors like Nafion® face critical limitations, including water-dependent conductivity, high production costs, and poor performance under high-temperature/low-humidity conditions. Metal-organic frameworks (MOFs), with their tunable structures, high porosity, and diverse functionalization, have emerged as promising candidates to overcome these challenges. This review systematically summarizes the recent progress in membrane-shaped MOF proton conductors, focusing on three mainstream fabrication strategies: MOF-polymer blend membranes, MOF glass membranes, and substrate-deposited MOF films. The proton conduction mechanisms, structural design principles, and performance optimization strategies for each type are discussed. Additionally, the current challenges and future perspectives in advancing MOF-based membranes for practical PEMFC applications are highlighted.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"114 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145255230","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
Polar Rotor for Designing Antiferroelectricity-Antiferromagnetism in a Quasi-2D Organic-Inorganic Hybrid Perovskite 准二维有机-无机杂化钙钛矿反铁电-反铁磁性极性转子设计
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-10-10 DOI: 10.1039/d5qi01473e
Zi-Ao Qiu, Hua-Kai Li, Ze-Jiang Xu, Liang-Han Shen, Xiang Zhang, Chao Shi, Na Wang, Xiaobin Fu, Nian-Tao Yao, Heng-Yun Ye, Le-Ping Miao
{"title":"Polar Rotor for Designing Antiferroelectricity-Antiferromagnetism in a Quasi-2D Organic-Inorganic Hybrid Perovskite","authors":"Zi-Ao Qiu, Hua-Kai Li, Ze-Jiang Xu, Liang-Han Shen, Xiang Zhang, Chao Shi, Na Wang, Xiaobin Fu, Nian-Tao Yao, Heng-Yun Ye, Le-Ping Miao","doi":"10.1039/d5qi01473e","DOIUrl":"https://doi.org/10.1039/d5qi01473e","url":null,"abstract":"Antiferroelectric-antiferromagnetic (AFE-AFM) multiferroic materials have received extensive attention due to their applications in high-energy storage devices. However, achieving AFE-AFM properties in a hybrid molecular material has greater challenges because electric dipole orders and magnetic dipole orders are often mutually exclusive. Here, we report a molecular strategy that utilizes polar rotors combined with magnetic modules to overcome the above exclusion in a Quasi-two-dimensional (Q-2D) hybrid perovskite platform. Based on the non-ferroic [CBA]2CoCl4 (CBA = cyclobutylaminium, CBC), F-substituted [DFCBA]2CoCl4 (DFCBA = 3,3-difluorocyclobutylamine, DFCBC) with polar rotors shows AFE-AFM properties. Systematic experimental results reveal that the rotor movement freezing forms antiparallel arranged dipole arrays, which is the origin of the AFE feature. Moreover, DFCBC exhibits antiferromagnetism from the inorganic [CoCl4]2– component, reaching 1.73 Nβ at 50 kOe. Our study presents the advantages of the Ruddlesden-Popper (RP) hybrid perovskite molecular rotor platform for realizing AFE-AFM properties. It gives insight into the molecular design for controlling the macroscopic physical properties.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"28 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145255226","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
Interlayer-expanded MoSe2/C superlattice hollow nanospheres as stable anodes for sodium/potassium ion batteries 层间膨胀MoSe2/C超晶格空心纳米球作为钠/钾离子电池的稳定阳极
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-10-09 DOI: 10.1039/d5qi01642h
Qiannian Li, Yanting Xia, Jinmao Fang, Junwei Chen, Yan Zhang, Wenpei Kang, Jun Xu
{"title":"Interlayer-expanded MoSe2/C superlattice hollow nanospheres as stable anodes for sodium/potassium ion batteries","authors":"Qiannian Li, Yanting Xia, Jinmao Fang, Junwei Chen, Yan Zhang, Wenpei Kang, Jun Xu","doi":"10.1039/d5qi01642h","DOIUrl":"https://doi.org/10.1039/d5qi01642h","url":null,"abstract":"As a layered two-dimensional material, MoSe2 exhibits interlayer-tunable properties and exceptional theoretical capacities, making it have the potential to be used in Na+/K+ ion storage systems. Nevertheless, its inadequate conductivity and irreversible reactions during charge and discharge seriously affect its electrochemical performance. Herein, a hierarchical interlayer-expanded MoSe2/C (IE-MoSe2/C) hybrid architecture with interlinked hollow nanospheres is engineered via a twostage fabrication process combining hydrothermal self-assembly and controlled pyrolysis. The interlayer spacing increases to 1.02 nm, which accelerates the transport of sodium and potassium ions. Additionally, the strong interface between carbon and MoSe2 improves the conductivity, thereby enhancing the electrochemical kinetics of sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs). On the other hand, the unique hierarchical IE-MoSe2/C structure with hollow nanospheres can effectively mitigate variations in volume during cycling. Thus, the outstanding electrochemical characteristics of IE-MoSe2/C are achieved as anode materials for SIBs and PIBs. Specifically, IE-MoSe2/C exhibits better rate capability (98 mAh g-1 at 20 A g-1 in SIBs) and cycling performance (269/174 mAh g-1 at 2.0/5.0 A g-1 over 1100 cycles in SIBs, 133/96 mAh g-1 at 1.0/2.0 A g-1 over 1000 cycles for PIBs). Additionally, at 0.5C, the built full cell of IE-MoSe2/C||Na3V2(PO4)3 can display a consistent capacity of 93 mAh g-1 , demonstrating the potential for future practical applications.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"101 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145247671","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
Mo-Doped δ-MnO2 Nanoflowers Enable Efficient Nitrogen Oxidation to Nitrate under Mild Conditions mo掺杂δ-MnO2纳米花能在温和条件下高效氧化成硝酸盐
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-10-09 DOI: 10.1039/d5qi01648g
Mingrui Wu, Quan Li, Dongcai Shen, Zhengting Xiao, Minghui Hao, Wentai Wang
{"title":"Mo-Doped δ-MnO2 Nanoflowers Enable Efficient Nitrogen Oxidation to Nitrate under Mild Conditions","authors":"Mingrui Wu, Quan Li, Dongcai Shen, Zhengting Xiao, Minghui Hao, Wentai Wang","doi":"10.1039/d5qi01648g","DOIUrl":"https://doi.org/10.1039/d5qi01648g","url":null,"abstract":"The development of efficient electrocatalysts for nitrogen oxidation reaction (NOR) under mild conditions is crucial for sustainable nitrate synthesis. Mo-doped δ-MnO<small><sub>2</sub></small> electrocatalysts with varying Mo concentrations were successfully prepared for NOR. Structural and electrochemical analysis revealed that Mo doping simultaneously enhanced the conductivity and electrochemically active surface area (ECSA) while promoting N<small><sub>2</sub></small> adsorption and activation through electronic structure modulation. The optimized 2.5% Mo-doped δ-MnO<small><sub>2</sub></small> (denoted as MM2.5) exhibited superior NOR performance in 0.1 M KOH, delivering a NO<small><sub>3</sub></small><small><sup>−</sup></small> production rate of 116.75 μg h<small><sup>−1</sup></small> mg<small><sub>cat</sub></small><small><sup>−1</sup></small> with a Faradaic efficiency (FE) of 7.04% and excellent long-term stability. In addition, a Zn-N<small><sub>2</sub></small> device was formed with MM2.5 as the anode and Zn plate as the cathode, and the NO<small><sub>3</sub></small><small><sup>−</sup></small> yield obtained in this device was even higher than 144.5 μg h<small><sup>−1</sup></small> mg<small><sub>cat</sub></small><small><sup>−1</sup></small>. However, structural characterization revealed that excessive Mo doping disrupted the δ-MnO<small><sub>2</sub></small> crystal structure, reducing specific surface area and active sites density. Density functional theory (DFT) calculations demonstrated that Mo doping lowered the Gibbs free energy of the rate−determining step (*N<small><sub>2</sub></small>→*NNOH) from 2.41 eV to 1.94 eV by facilitating electron transfer, thereby optimizing the reaction pathway. This study provides a new strategy for the design of transition metal oxide-based electrocatalysts, as well as the application in artificial nitrogen fixation.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"28 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145247669","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
In Situ Synthesis of MoS2-GO Catalyst and Unveiling Its Potential for Deep Hydrogenation Desulfurization MoS2-GO催化剂的原位合成及其深度加氢脱硫潜力的揭示
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-10-09 DOI: 10.1039/d5qi01825k
Xianglong Meng, Hailing Guo, Kun Sun, Xuyu Zhao, Girolamo Giordano, Yongming Chai, Chenguang Liu
{"title":"In Situ Synthesis of MoS2-GO Catalyst and Unveiling Its Potential for Deep Hydrogenation Desulfurization","authors":"Xianglong Meng, Hailing Guo, Kun Sun, Xuyu Zhao, Girolamo Giordano, Yongming Chai, Chenguang Liu","doi":"10.1039/d5qi01825k","DOIUrl":"https://doi.org/10.1039/d5qi01825k","url":null,"abstract":"MoS2 catalyst shows great potential in deep hydrodesulfurization (HDS) but is limited by high metal usage and low active site utilization. A MoS2-GO composite catalyst with trace amounts of graphene oxide (GO) was synthesized via an in situ solvothermal method. Owing to its high polarity, deionized water acts as an effective dispersant for GO, ensuring uniform dispersion while preserving its sheet-like morphology. The Mo precursor, bearing organic functional groups, is homogeneously anchored onto the oxygen functionalities of GO sheets, resulting in a densely packed monolayer MoS2 structure with abundant, highly exposed HDS edge sites across the layered GO surface. Combined X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) analyses reveal that MoS2 forms a heterostructure with GO through interactions between S atoms and the surface oxygen functionalities of GO. In the HDS reaction, it achieves 98.3% Dibenzothiophene (DBT) conversion at 280 °C and exhibits high hydrogenation desulfurization (HYD) selectivity (S(HYD/DDS) up to 12.8). Notably, it demonstrates excellent activity for sterically hindered 4,6-dimethyldibenzothiophene (4,6-DMDBT, 80.7% conversion at 300 °C) and a high HYD pathway selectivity (S(HYD/DDS) up to 13.9). Raman spectroscopy coupled with DFT calculations reveals that the MoS2-GO catalyst features extensive Mo-S-O(GO) electron-transport networks, which facilitate H2 dissociation and drive continuous hydrodesulfurization of sulfur-containing species. This provides insights for the preparation of heavy oil hydrocracking catalysts and the regulation of hydrogenation pathway selectivity.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"14 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145247309","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
The Rise of Functional Organoarsenic Chemistry 功能性有机砷化学的兴起
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-10-08 DOI: 10.1039/d5qi01401h
Hiroaki Imoto, Chihiro Okochi, Kazuma Kikuchi, Kensuke Naka
{"title":"The Rise of Functional Organoarsenic Chemistry","authors":"Hiroaki Imoto, Chihiro Okochi, Kazuma Kikuchi, Kensuke Naka","doi":"10.1039/d5qi01401h","DOIUrl":"https://doi.org/10.1039/d5qi01401h","url":null,"abstract":"Organoarsenic compounds have long been viewed through the lens of toxicity, yet recent advances in their synthesis, reactivity, and molecular design have begun to redefine their role in modern chemistry. This review highlights the emerging field of functional organoarsenic chemistry, which spans molecular frameworks, polymeric materials, metal coordination complexes, and reactive intermediates. Key developments include the design of π-conjugated arsole-based polymers with tunable optoelectronic properties, the construction of coordination and redox-active frameworks by harnessing the soft Lewis basicity of arsenic, and the exploitation of As(III)/As(V) redox cycles for catalysis. Furthermore, the development of arsonium-based ionic liquids and hypervalent arsenic-centered dications demonstrates the expanding versatility of arsenic across diverse chemical contexts. Collectively, these findings illustrate how arsenic’s unique electronic and structural attributes—distinct from its phosphorus congener—enable new functionalities that enrich the toolbox of molecular and materials science. The rise of functional organoarsenic chemistry represents both a revival and a reimagination of this historically overlooked element, paving the way for future applications in catalysis, photonics, sensing, and soft materials.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"128 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145247313","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
Molecular Weaving towards Metalloporphyrin Polymer Coatings with Integrated High Stiffness and Flexibility for Anti-SARS-CoV-2 Application 高刚度、高柔韧性金属卟啉高分子涂层的分子编织研究
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-10-07 DOI: 10.1039/d5qi01837d
Xiaoman Yao, Jie Han, Xuanxu Chen, Caier Huang, Mingjin Shi, Qiuhua Wei, Xiaojie Ma, Qian-You Wang, Tao Wang, Yifa Chen, Bo Wang, Yaqian Lan
{"title":"Molecular Weaving towards Metalloporphyrin Polymer Coatings with Integrated High Stiffness and Flexibility for Anti-SARS-CoV-2 Application","authors":"Xiaoman Yao, Jie Han, Xuanxu Chen, Caier Huang, Mingjin Shi, Qiuhua Wei, Xiaojie Ma, Qian-You Wang, Tao Wang, Yifa Chen, Bo Wang, Yaqian Lan","doi":"10.1039/d5qi01837d","DOIUrl":"https://doi.org/10.1039/d5qi01837d","url":null,"abstract":"High stiffness and high flexibility are often considered as conflicting properties within polymers, which sets obstacles in developing next-generation materials such as coatings with high mechanical strength. We overcome this conflict by designing a series of metalloporphyrin polymers through an in-situ copolymerization strategy based on stiff porphyrin units and flexible thiourea linkers. Mechanically robust metalloporphyrin polymer coatings can be readily formed in place once their starting materials are coated on substrates such as cloth, fiber, paper cup, glass and metal foil. The coupling of stiffness with flexibility not only endows these properties of the metalloporphyrin polymer to the coated substrates, but also promises surface adaptability when applying onto a broad scope of materials. Modified with metal centers, anti-pathogenic functions for viruses like SARS-CoV-2 can be achieved when manufactured as mask coatings, holding promise in medical prevention and life protection.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"56 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241662","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
Outstanding energy density and hardness in Ba0.85Ca0.15Zr0.1Ti0.9O3-based ceramics via weakly coupled relaxor design 基于弱耦合弛豫设计的ba0.85 ca0.15 zr0.1 ti0.9 o3基陶瓷具有优异的能量密度和硬度
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-10-07 DOI: 10.1039/d5qi01466b
Dandan Han, Longxiao Duan, Yunfei Ma, Hao Liang, Yan Wang, Wenfeng Yue, Zhenhao Fan, Raz Muhammad, Changhao Wang, Dawei Wang
{"title":"Outstanding energy density and hardness in Ba0.85Ca0.15Zr0.1Ti0.9O3-based ceramics via weakly coupled relaxor design","authors":"Dandan Han, Longxiao Duan, Yunfei Ma, Hao Liang, Yan Wang, Wenfeng Yue, Zhenhao Fan, Raz Muhammad, Changhao Wang, Dawei Wang","doi":"10.1039/d5qi01466b","DOIUrl":"https://doi.org/10.1039/d5qi01466b","url":null,"abstract":"Lead-free ceramic-based dielectric capacitors demonstrate significant potential for pulse power energy storage applications due to their high power density and rapid charge/discharge characteristics. In this study, highly dynamic polar nanoregions (PNRs) were constructed in (1 − <em>x</em>)[0.92Ba<small><sub>0.85</sub></small>Ca<small><sub>0.15</sub></small>Zr<small><sub>0.1</sub></small>Ti<small><sub>0.9</sub></small>O<small><sub>3</sub></small>–0.08Bi(Zn<small><sub>2/3</sub></small>Ta<small><sub>1/3</sub></small>)O<small><sub>3</sub></small>]-<em>x</em>Bi<small><sub>0.5</sub></small>Na<small><sub>0.5</sub></small>TiO<small><sub>3</sub></small> (abbreviated as BNT<em>x</em>) dielectric ceramics by introducing the strongly polar relaxor end-member Bi<small><sub>0.5</sub></small>Na<small><sub>0.5</sub></small>TiO<small><sub>3</sub></small> (BNT). Meanwhile, the hybridization of Bi 6s and O 2p orbitals improves the polarization capability of the ceramics, resulting in a larger polarization difference (Δ<em>P</em> ∼47.8 μC cm<small><sup>−2</sup></small>). Furthermore, due to the high doping concentration of BNT and Ta donor doping, BNT<em>x</em> relaxor ferroelectrics exhibit high bulk resistivity, submicron grain size (∼0.57 μm), and wide bandgap characteristics, leading to a remarkable improvement in breakdown strength (<em>E</em><small><sub>b</sub></small> ∼710 kV cm<small><sup>−1</sup></small>). Both the electroactive regions corresponding to the bulk and grain boundaries showed similar characteristics, indicating a homogeneous electrical microstructure and intrinsic resistance which significantly contributed to maintaining the high resistivity of the samples. Through compositional optimization, the 20% BNT-doped BCZT-based relaxor ferroelectric ceramic (BNT20) achieves a Vickers hardness of ∼8.608 GPa while demonstrating exceptional energy storage performance, including an outstanding recoverable energy density (<em>W</em><small><sub>rec</sub></small>) of ∼10.6 J cm<small><sup>−3</sup></small> and ultrahigh energy efficiency (<em>η</em>) of ∼87%. Notably, the stable PNRs significantly improved the temperature and frequency stability of the dielectric constant and energy storage performance. Furthermore, the BNT20 ceramic exhibits a high current density (<em>C</em><small><sub>D</sub></small> ∼1108.3 A cm<small><sup>−2</sup></small>), power density (<em>P</em><small><sub>D</sub></small> ∼132.99 MW cm<small><sup>−3</sup></small>), and an ultrafast discharge speed (<em>t</em><small><sub>0.9</sub></small> ∼79.9 ns), demonstrating its promising application prospects in pulse power systems.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"4 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235283","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
Superior performance of Ga-MFI zeolite with hierarchical structure and moderate acidity in the catalytic cracking of low-density polyethylene 分级结构、酸度适中的Ga-MFI分子筛在低密度聚乙烯催化裂化中的优越性能
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-10-07 DOI: 10.1039/d5qi01659b
Hao Wu, Yi Wang, Pingping Wu, Hongchao Fan, Yuanhao Liu, Shuyan Liu, Peng Bai, Zi-Feng Yan, Svetlana Mintova
{"title":"Superior performance of Ga-MFI zeolite with hierarchical structure and moderate acidity in the catalytic cracking of low-density polyethylene","authors":"Hao Wu, Yi Wang, Pingping Wu, Hongchao Fan, Yuanhao Liu, Shuyan Liu, Peng Bai, Zi-Feng Yan, Svetlana Mintova","doi":"10.1039/d5qi01659b","DOIUrl":"https://doi.org/10.1039/d5qi01659b","url":null,"abstract":"Addressing the global challenge of waste plastic management, catalytic cracking utilizing zeolite catalysts offers a sustainable approach for converting plastics into valuable products. The acidity and diffusion of zeolites play a critical role in determining the efficiency of this process. However, conventional aluminum-containing zeolites exhibit excessive acidity, which results in increased gas formation and a diminished yield of liquid products. Additionally, microporous zeolites with limited diffusion of large molecules significantly impair their activity and overall utilization efficiency. In this study, we developed gallium-modified MFI zeolite catalysts (Ga-MFI) that possess a well-balanced micro- and mesoporosity along with controlled acidity. These Ga-MFI catalysts exhibited enhanced diffusion properties and moderate acidity, which contributed to an improved gasoline yield (64.84–77.69%), alongside a significant reduction in liquefied gas yield (from 23.21% to 13.07%) during the catalytic cracking of low-density polyethylene (LDPE) when compared to the ZSM-5 catalyst. Furthermore, the Ga-MFI catalysts demonstrated a significant enhancement in the selectivity for cycloalkenes within the liquid products, increasing from 35.62% to 51.53%. This improvement can be attributed to the promotion of bimolecular cracking reactions occurring on moderate acidic sites, which facilitate olefin formation, as well as the high concentration of Lewis acid sites that aid in the dehydrogenation of cycloalkanes to cyclo-olefins. These findings underscore the potential of Ga-MFI zeolite as a promising catalyst for the sustainable conversion of plastic wastes.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"1 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145235336","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信