{"title":"Heterointerface synergy between a 3 × 3 tunnel τ-MnO2 cathode and Mg2(OH)3Cl·4H2O for achieving long cycle-life aqueous zinc-ion batteries","authors":"Fang Xu, Jialin Zheng, Dai-Huo Liu, Ao Wang, Zhenjiang Li, Chunyan Xu, Mengqin Song, Beinuo Zhang, Zhengyu Bai, Zhongwei Chen","doi":"10.1039/d4qi02572e","DOIUrl":"https://doi.org/10.1039/d4qi02572e","url":null,"abstract":"Manganese dioxide is considered an ideal cathode candidate material for aqueous zinc-ion batteries. However, its poor conductivity and nanostructural degeneration impede its further application. Herein, a 3 × 3 tunnel-structured τ-MnO<small><sub>2</sub></small> cathode material was synthesized through the addition of excessive Mg<small><sup>2+</sup></small>. During its preparation, a portion of Mg<small><sup>2+</sup></small> was embedded into the 3 × 3 tunnel of τ-MnO<small><sub>2</sub></small> to stabilize the microstructure, while another portion of Mg<small><sup>2+</sup></small> formed a new phase, <em>i.e.</em>, Mg<small><sub>2</sub></small>(OH)<small><sub>3</sub></small>Cl·4H<small><sub>2</sub></small>O, adjoining τ-MnO<small><sub>2</sub></small>, resulting in a cathode material with heterointerface synergy between τ-MnO<small><sub>2</sub></small> and Mg<small><sub>2</sub></small>(OH)<small><sub>3</sub></small>Cl·4H<small><sub>2</sub></small>O. The charge arrangement of the heterointerface between τ-MnO<small><sub>2</sub></small> and Mg<small><sub>2</sub></small>(OH)<small><sub>3</sub></small>Cl·4H<small><sub>2</sub></small>O enabled more active sites and accelerated ion-diffusion kinetics. The introduction of Mg<small><sub>2</sub></small>(OH)<small><sub>3</sub></small>Cl·4H<small><sub>2</sub></small>O increased the proportion of Mn(<small>IV</small>) and suppressed the structural instability caused by Jahn–Teller distortion, thereby improving the electrochemical performance of the τ-MnO<small><sub>2</sub></small> cathode (capacity retention of 86.7% after 1800 cycles at 1 A g<small><sup>−1</sup></small>).","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142541334","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}
Lin Geng, Di Wang, Ran-Qi Chen, San-Tai Wang, Chan Zheng, Wei-Hui Fang, Jian Zhang
{"title":"Unprecedented aluminum molecular ring based-layer with tailorable optical limiting effect","authors":"Lin Geng, Di Wang, Ran-Qi Chen, San-Tai Wang, Chan Zheng, Wei-Hui Fang, Jian Zhang","doi":"10.1039/d4qi02507e","DOIUrl":"https://doi.org/10.1039/d4qi02507e","url":null,"abstract":"The uncontrolled assembly of Al(III) octahedra makes the synthesis of related two-dimensional (2D) compounds unpredictable, thus limiting their potential applications. In contrast to traditional synthesis methods, we propose a stepwise synthetic approach based on aluminum molecular rings. By fine-tuning the angle of the coordination unit and direction of anchoring modulation, a zero-dimensional (0D) aluminum molecular ring (AlOC-196) can be successfully preserved as a unique building block, allowing for the construction of a targeted 2D configuration (AlOC-197). Notably, the weak interlayer interactions facilitate its further exfoliation process. Moreover, compared to bulk crystals, nanosheets produced through liquid-phase exfoliation exhibit enhanced third-order nonlinear optical (NLO) properties. This coordination-driven self-assembly strategy shows promise in expanding the structural diversity and functionality of aluminum molecular ring-based materials.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519871","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}
{"title":"Reversible single-crystal to single-crystal photoreaction between a coordination comb and a ladder displays photo-switchable fluorescence","authors":"Ni-Ya Li, Xin-Yu Wang, Pei-Xuan Zhang, Ning-Ning Zou, Wen Qiu, Yu-Fei Xing, Yunjian Wang, Xiaoyan Tang, Dong Liu","doi":"10.1039/d4qi02162b","DOIUrl":"https://doi.org/10.1039/d4qi02162b","url":null,"abstract":"Photoreactive coordination polymers are important platforms for the implementation of tailored solid-state photochemical reactions. These crystalline compounds can also be employed as photo-controlled intelligent materials for the design and manufacture of advanced devices. Herein, a comb-like photoreactive coordination polymer, formulated as {[Zn(5-Cl-1,3-bdc)(H2O)(2,3-ppe)]·H2O}n (1) was prepared based on the hydrothermal reaction between Zn(NO3)2·6H2O, 5-chlorobenzene-1,3-dicarboxylic acid (5-Cl-1,3-H2BDC) and 1-(2-pyridyl)-2-(3-pyridyl)-ethylene (2,3-ppe). Upon irradiation with sunlight, the 1H NMR spectroscopy, UV-vis absorption spectroscopy and single crystal X-ray diffraction analysis results indicated that 1 can perform a [2+2] photocycloaddition reaction and thus generate a unique ladder-like coordination chain {[Zn(5-Cl-1,3-bdc)(H2O)(2,3-bpbpcb)0.5]·H2O}n (1a, 2,3-bpbpcb = 1,3-bis(2-pyridyl)-2,4-bis(3-pyridyl)cyclobutane) via single-crystal to single-crystal (SCSC) transformation. Upon irradiation of UV light with a wavelength of 254 nm, the newly-formed coordination chain 1a can undergo a reversible cycloreversion reaction and return to 1. The reversible photo-controllable cycloaddition-cycloreversion reaction between 1 and 1a also exhibits an interesting behavior of photo-switchable fluorescence. The reversible structural transformation and fluorescence switching behavior of 1 makes it a potential photo-controlled intelligent material for optical information storage, optical anti-counterfeiting, fluorescence sensors and other fields.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519889","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}
Sha Jianchun, Wang Qiang, Li Xue, Liu Zhoulin, Bao Jiaxin, Li Lianhui, Tian Jie, Chen Weilong, Liu Wenhong, Zhang Zhiqiang
{"title":"Achieving high power density and stability in aqueous Mg–air batteries using taurine electrolyte additives","authors":"Sha Jianchun, Wang Qiang, Li Xue, Liu Zhoulin, Bao Jiaxin, Li Lianhui, Tian Jie, Chen Weilong, Liu Wenhong, Zhang Zhiqiang","doi":"10.1039/d4qi01842g","DOIUrl":"https://doi.org/10.1039/d4qi01842g","url":null,"abstract":"Aqueous Mg–air batteries are promising candidates for large-scale energy storage, but their practical application is significantly hindered by water-induced parasitic reactions and the chunk effect. In this study, taurine (Tau) is an effective electrolyte additive for aqueous Mg–air batteries utilizing various magnesium anodes. The non-sacrificial Tau molecules, possessing both donor and acceptor groups, disrupt the inherent hydrogen bond network of H<small><sub>2</sub></small>O and replace solvated H<small><sub>2</sub></small>O in the Mg<small><sup>2+</sup></small> solvation sheath, forming dynamic adsorption on Mg and creating a hydrophobic electric double layer. Consequently, taurine inhibits H<small><sub>2</sub></small>O attack on Mg, promoting uniform Mg stripping. An appropriate amount of Tau not only enhances the discharge activity of the AZ31 anode but also suppresses its self-discharge phenomenon, achieving a surprising effect of simultaneously boosting voltage and anode utilization. Therefore, 0.2 M Tau was identified as the optimal electrolyte concentration and successfully incorporated in Mg–air batteries utilizing various routine Mg anodes (such as VW83, VW103, and LA103Z). The results demonstrate that Tau effectively enhances the discharge properties for Mg–air batteries employing various magnesium anodes.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519896","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}
{"title":"Optimizing spin qubit performance of lanthanide-based metal−organic frameworks","authors":"Xiya Du, Lei Sun","doi":"10.1039/d4qi02324b","DOIUrl":"https://doi.org/10.1039/d4qi02324b","url":null,"abstract":"Lanthanide-based spin qubits are intriguing candidates for high-fidelity quantum memories owing to their spin-optical interfaces. Metal−organic frameworks (MOFs) offer promising solid-state platforms to host lanthanide ions because their bottom-up synthesis enables rational optimization of both spin coherence and luminescence. Here, we incorporated Nd<small><sup>3+</sup></small> and Gd<small><sup>3+</sup></small> into a La<small><sup>3+</sup></small>-based MOF with various doping levels and examined their qubit performance including the spin relaxation time (<em>T</em><small><sub>1</sub></small>) and phase memory time (<em>T</em><small><sub>m</sub></small>). Both Nd<small><sup>3+</sup></small> and Gd<small><sup>3+</sup></small> behave as spin qubits with <em>T</em><small><sub>1</sub></small> exceeding 1 ms and <em>T</em><small><sub>m</sub></small> approaching 2 μs at 3.2 K under low doping levels. Variable-temperature spin dynamic studies unveiled spin relaxation and decoherence mechanisms, highlighting critical roles of spin-phonon coupling and spin-spin dipolar coupling. Accordingly, reducing the spin concentration, spin-orbit coupling strength, and ground spin state improves the qubit performance of lanthanide-based MOFs. These optimization strategies serve as guidelines for future development of solid-state lanthanide qubits targeting quantum information technologies.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519891","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}
Maddalena Paolillo, Giarita Ferraro, Irene Cipollone, Eugenio Garribba, Maria Monti and Antonello Merlino
{"title":"Correction: Unexpected in crystallo reactivity of the potential drug bis(maltolato)oxidovanadium(iv) with lysozyme","authors":"Maddalena Paolillo, Giarita Ferraro, Irene Cipollone, Eugenio Garribba, Maria Monti and Antonello Merlino","doi":"10.1039/D4QI90073A","DOIUrl":"10.1039/D4QI90073A","url":null,"abstract":"<p >Correction for ‘Unexpected <em>in crystallo</em> reactivity of the potential drug bis(maltolato)oxidovanadium(<small>IV</small>) with lysozyme’ by Maddalena Paolillo <em>et al.</em>, <em>Inorg. Chem. Front.</em>, 2024, <strong>11</strong>, 6307–6315, https://doi.org/10.1039/D4QI01528B.</p>","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/qi/d4qi90073a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142489843","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}
{"title":"Amorphous MoaZr0.8Ox-500 catalyzed selective oxidation of sulfides to sulfoxides mediated by 1O2 from direct heterolytic cleavage of H2O2","authors":"Tong Li, Jiaheng Qin, Xueyao Zhang, Xiaoqi Tang, Mingzhe Lv, Weiwen Mao, Linkun Dong, Tongtong Fan, Yu Long, Jiantai Ma","doi":"10.1039/d4qi02008a","DOIUrl":"https://doi.org/10.1039/d4qi02008a","url":null,"abstract":"Sulfoxides, a class of pharmaceuticals and fine chemicals of significant importance, are readily peroxidized to sulfones in the H<small><sub>2</sub></small>O<small><sub>2</sub></small> system. Altering the intermediate oxygen species is the key to achieving selectivity regulation. Herein, Zr(OH)<small><sub>4</sub></small> was used to support Mo species, after calcining at 500 °C, obtaining a unique amorphous composite oxide with Mo uniformly dispersed in the ZrO<small><sub>2</sub></small> matrix (Mo<small><sub><em>a</em></sub></small>Zr<small><sub>0.8</sub></small>O<small><sub><em>x</em></sub></small>-500). Mo<small><sub><em>a</em></sub></small>Zr<small><sub>0.8</sub></small>O<small><sub><em>x</em></sub></small>-500 demonstrates enhanced catalytic proficiency, enabling the synthesis of sulfoxides within 30 minutes at 30 °C. Reactive oxygen species (ROS) quenching experiments and EPR spectra indicate that Mo<small><sub><em>a</em></sub></small>Zr<small><sub>0.8</sub></small>O<small><sub><em>x</em></sub></small>-500 possesses the ability to rapidly and directly participate in the heterolytic cleavage of H<small><sub>2</sub></small>O<small><sub>2</sub></small> to produce <small><sup>1</sup></small>O<small><sub>2</sub></small> without passing through the intermediate ˙O<small><sup>2−</sup></small>, preventing the peroxidation of sulfoxides to sulfones. Additionally, the prevalence of basic sites in Mo<small><sub><em>a</em></sub></small>Zr<small><sub>0.8</sub></small>O<small><sub><em>x</em></sub></small>-500 is conducive to proton transfer, which plays a significant role in the heterolytic cleavage of H<small><sub>2</sub></small>O<small><sub>2</sub></small>. Furthermore, Mo<small><sub><em>a</em></sub></small>Zr<small><sub>0.8</sub></small>O<small><sub><em>x</em></sub></small>-500 exhibits excellent reproducibility, scalability, and broad substrate applicability. This study provides new insights into the selective regulation of the sulfide oxidation reaction, as well as the preparation of amorphous solid solution.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142489510","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}
{"title":"Exploring the optimal posttreatment strategy for boosting the electrochemical performances of a new bimetal–organic framework-based supercapacitor","authors":"Xinwen Dou, Mingyue Liu, Tian Cao, Chan Wang, Yingjie Zhang, Yuhang Jia, Qiang Ju, Zhenlan Fang","doi":"10.1039/d4qi02314e","DOIUrl":"https://doi.org/10.1039/d4qi02314e","url":null,"abstract":"Metal–organic frameworks (MOFs) have attracted great interest owing to their potential application in electrochemical energy storage. However, the poor conductivity, low structural stability and specific capacitance of pristine MOFs are their critical limitations for practical applications in energy storage devices. To solve these issues, different methods of posttreatments have been applied for MOFs to get their derivations, which are expected to exhibit unique porous structures, fascinating morphology and different chemical compositions, conductivity, stability as well as fasinating electrochemical behaviors. Nevertheless, to the best of our knowledge, the systematic investigations on the effects of different posttreatment methods on electrochemical behaviors of MOF derivatives have never been reported. Here, we have synthesized a series of new monometallic and bimetallic Ni/Co-MOF with varied ratio of Ni to Co ions through self-assembly of metal ions and terephthalic acid (BDC). Four different types of posttreatment methods including sulfidation, carbonization, oxidation, and hydroxylation have been applied in the bimetallic Ni/Co-MOF with the ratio of Ni to Co equaling to 2:1 (Ni2Co1-MOF) due to its best electrochemical behavior among these MOF precursors, and the generated MOF derivatives are named as Ni2Co1-S, Ni2Co1-C, Ni2Co1-O and Ni2Co1-OH, respectively. The obtained optimized Ni2Co1-S-140-6 electrode shows the highest specific capacitance (1500 F g−1 at 1 A g−1), the best conductivity (Rs = 2.38Ω), excellent rate capability (73.3%) and the highest cycle stability (88.2% retention after 5000 cycles) in relation to that of Ni2Co1-C, Ni2Co1-O and Ni2Co1-OH electrodes, demonstrating that sulfidation is the best posttreatment strategy. Moreover, an aqueous asymmetric supercapacitor (A-ASC), assembled by the cathode of Ni2Co1-S-140-6 and the anode of PPy in-situ growing on acid-etched carbon cloth (AECC), exhibits a wide voltage window (1.7V), competitive energy density of 147 Wh kg–1 at the power density of 845 W kg–1 and ideal long-term stability with specific capacitance retention of 75.9% after 5000 cycles at 10 A g–1. This work offers full view of postsynthetic strategies of MOFs for developing high-performance electrochemical energy storage devices.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142488544","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}
Han Wang, Rongkai Kang, Boya Zhang, Xingchang Zhang, Guowen Chen, Yiqun Du, Jian-Xin Zhang
{"title":"Boosted Aluminum Storage Performance by d-p Orbital Modulation in Zinc Selenide with Manganese Element Dopants","authors":"Han Wang, Rongkai Kang, Boya Zhang, Xingchang Zhang, Guowen Chen, Yiqun Du, Jian-Xin Zhang","doi":"10.1039/d4qi02173h","DOIUrl":"https://doi.org/10.1039/d4qi02173h","url":null,"abstract":"Transition metal chalcogenides (TMCs) are extensively employed as cathode materials for rechargeable aluminum batteries (RABs) due to their high theoretical specific capacity and voltage plateau. Although promising, practical applications are hindered by challenges such as inferior structure stability, slow reaction kinetics, and inadequate electronic conductivity. Herein, Mn-ion doping engineering and g-C3N4 etched porous carbon frameworks (Mn-ZnSe@CNPC) were integrated to synergistically enhance the electrochemical properties of ZnSe. Through modulating the center of the d- and p-band and regulating electronic interaction, Mn-ion doping enhances the adsorption for solvent groups and reduces electron transfer energy barriers, resulting in Mn-ZnSe@CNPC cathodes with high redox activity and fast reaction kinetics. In addition, the porous carbon nanocages act as support frameworks, preventing the agglomeration of ZnSe nanoparticles and providing ample ion transport channels, thus addressing issues related to poor cyclability and slow electrochemical kinetics in RABs. Benefiting from the d-p orbital modulation strategy and structural advantages, the tailored Mn-ZnSe@CNPC cathode exhibits boosted electrochemical performance and excellent stability.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142488557","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}
Changhao Wang, Jiaxi Hao, Longxiao Duan, Jianfan Zhang, Wenfeng Yue, Zhenhao Fan, Dandan Han, Raz Muhammad, Fanxu Meng, Dawei Wang
{"title":"Superior energy storage performance with a record high breakdown strength in bulk Ba0.85Ca0.15Zr0.1Ti0.9O3-based lead-free ceramics via multiple synergistic strategies","authors":"Changhao Wang, Jiaxi Hao, Longxiao Duan, Jianfan Zhang, Wenfeng Yue, Zhenhao Fan, Dandan Han, Raz Muhammad, Fanxu Meng, Dawei Wang","doi":"10.1039/d4qi02126f","DOIUrl":"https://doi.org/10.1039/d4qi02126f","url":null,"abstract":"A high breakdown strength (<em>E</em><small><sub>b</sub></small>) together with a large maximum polarization (<em>P</em><small><sub>m</sub></small>) is essential for achieving a high recoverable energy density (<em>W</em><small><sub>rec</sub></small>) in energy storage dielectric ceramics. However, meeting the urgent need for practical applications remains a challenge due to the intrinsic properties of bulk dielectric ceramics. Herein, a composition and structure optimization strategy combined with a two-step sintering (TSS) process is proposed to design and fabricate (1−<em>x</em>)Ba<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>−<em>x</em>Bi(Mg<small><sub>1/2</sub></small>Sn<small><sub>1/2</sub></small>)O<small><sub>3</sub></small> (BCZT-BMS<em>x</em>-TSS) lead-free ceramics. Highly dynamic locally polar nano-regions (PNRs) are formed <em>via</em> composition optimization, exhibiting a very high <em>P</em><small><sub>m</sub></small> and energy storage efficiency (<em>η</em>). Compared to the traditional one-step sintering (OSS) process, the TSS process results in a composition with finer grain size and higher density, dramatically increasing <em>E</em><small><sub>b</sub></small>. As a result, an ultrahigh energy storage performance with <em>W</em><small><sub>rec</sub></small> ∼ 10.53 J cm<small><sup>−3</sup></small> and <em>η</em> ∼ 85.71% is achieved for the BCZT-BMS<em>x</em>-TSS (<em>x</em> = 0.08) ceramic which is attributed to a record high <em>E</em><small><sub>b</sub></small> ∼ 830 kV cm<small><sup>−1</sup></small> and a large <em>P</em><small><sub>m</sub></small> ∼ 44.66 μC cm<small><sup>−2</sup></small>. Complex impedance spectroscopy revealed that the activation energies of the bulk and grain boundary counterparts significantly increased, suggesting an increase in insulation resistance and a decrease in oxygen vacancies, which is the main reason for the high <em>E</em><small><sub>b</sub></small> value. In addition, excellent thermal/frequency stability is achieved in both energy density and efficiency, along with good charge–discharge performance. These findings suggest that BCZT-based lead-free ceramics have the potential for practical use in the future.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142488543","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}