Phase transitions in tantalum-modified silver niobate ceramics for high power energy storage
文献情報
Li Jin, Qingyuan Hu, Kun Yu, Yongyong Zhuang, Giuseppe Viola, Zhuo Xu, Xiaoyong Wei
Ag(Nb0.8Ta0.2)O3 is used here as a model system to shed light on the nature of the low temperature phase behavior of the unsubstituted parent compound AgNbO3, which is an important material for high-power energy storage applications. The three dielectric anomalies previously identified as M1 ↔ M2, Tf and M2 ↔ M3 transitions in AgNbO3 ceramics are found to be intimately related to the polarization the behavior of the B-site cations. In particular, the M1 ↔ M2 transition is found to involve the disappearance of original ferroelectric polar structure in the M1 phase. Analysis of weak-field and strong field hysteresis loops in the M2 region below Tf suggests the presence of a weakly-polar structure exhibiting antipolar behavior (i.e., a non-compensated antiferroelectric), which can be considered as ferrielectric (FIE). Modeling of the permittivity data using the Curie–Weiss law indicates that the Curie temperature is close to the freezing temperature, Tf, which can be regarded as the Curie point of the FIE phase. Substitution by Ta5+ in this system enhances the stability of the weakly polar/antiferroelectric state, giving rise to an increased energy storage density of 3.7 J cm−3 under an applied field of 27 MV m−1, one of the highest values ever reported for a dielectric ceramic. Furthermore, the energy storage capability remains approximately constant at around 3 J cm−3 up to 100 °C, at an applied field of 22 MV m−1.
関連文献
Correction: Two-dimensional conjugated metal–organic frameworks (2D c-MOFs): chemistry and function for MOFtronics
Mingchao Wang, Renhao Dong, Xinliang Feng
DOI: 10.1039/D2CS90005J
Sample preparation method for analysis of swipe samples by inductively coupled plasma mass spectrometry
Éva Széles, Zsolt Varga, Zsolt Stefánka
DOI: 10.1039/B926332B
Carbon capture with polyethylenimine hydrogel beads (PEI HBs)
Xingguang Xu, Bobby Pejcic, Charles Heath, Colin D. Wood
DOI: 10.1039/C8TA07760F
A paper microfluidic device based colorimetric sensor for the detection and discrimination of elapid versus viper envenomation
Lakshmi Narashimhan Ramana, Santosh S. Mathapati, Nitin Salvi, M. V. Khadilkar, Anita Malhotra, Tarun Kumar Sharma
DOI: 10.1039/D1AN01698A
Parametric optimization and spectral line selection for liquid sampling-atmospheric pressure glow discharge – optical emission spectroscopy
Katja A. Hall, R. Kenneth Marcus
DOI: 10.1039/C9JA00325H
High sensitivity and rapid detection of hepatitis B virus DNA using lateral flow biosensors based on Au@Pt nanorods in the absence of hydrogen peroxide
Niu Li, Xiaoxue Xi, Junlun Zhu, Xiaowei Wu, Xiuhua Zhang, Shengfu Wang, Wei Wen
DOI: 10.1039/D1AN02084F
Probing nucleus-enriched proteins in single living cells via a subcellular-resolved plasmonic immunosandwich assay‡
Jia Liu, Dan Xie, Zhen Liu
DOI: 10.1039/D1AN00003A
A highly sensitive immunofluorescence sensor based on bicolor upconversion and magnetic separation for simultaneous detection of fumonisin B1 and zearalenone
Xudong Zhao, Yu Wang, Shuang Li, Yingkai Qin, Tie Han, Zhixian Gao, Hui Liu
DOI: 10.1039/D1AN00004G
こちらもおすすめ
(S)-四氢呋喃-3-羧酸の物理化学的性質は何ですか?
CAS番号168395-26-4の(S)-四氢呋喃-3-羧酸は、白色の結晶が特徴的な性質を持ちます。分子量は128.08であり、水に溶けやすく、アルコールなど...
塩基性硫黄化合物1,3-ジメチル-1-[5-(三氟甲基)-1,3,4-硫杂环己二酮-2-基]尿素を含む廃棄物はどのように処理すべきですか?
塩基性硫黄化合物1,3-ジメチル-1-[5-(三氟甲基)-1,3,4-硫杂环己二酮-2-基]尿素を含む廃棄物は、専門的な廃棄処理施設で焼却処理を行うべきです。ま...
インドリジン-2-カルボン酸は安全ですか?
インドリジン-2-カルボン酸は一般的に安全ですが、過度に濃い状態では刺激性があります。取り扱いには適切な防護具を使用し、直接触れや吸入を避ける必要があります。
5-甲基-2-(3-ピリジニル)-1,3-テイゾール-4-オールの市場動向や研究トレンドはどうですか?
5-甲基-2-(3-ピリジニル)-1,3-テイゾール-4-オールは、医薬品や農薬、および合成化学の分野において研究が進められています。市場動向としては、化学物質...
4,4',4''-(嘧啶-2,4,6-三基)三苯甲醛はどのように保存すればよいですか?
4,4',4''-(嘧啶-2,4,6-三基)三苯甲醛は、密閉容器に保管し、避けておくことが重要です。室温で保管し、直射日光を避けてください。
(3aR)-1,3,3-トリフェニルテトラヒドロ-3H-ピロロ[1,2-c][1,3,2]-オキザボロロールについて、適用される法規ガイドラインは何ですか?
(3aR)-1,3,3-トリフェニルテトラヒドロ-3H-ピロロ[1,2-c][1,3,2]-オキザボロロールは、GHS(国際危険物識別ルール)の分類が適用されま...
6-(4-氯苯氧基)吡啶-3-胺の代替品はありますか?
6-(4-氯苯氧基)吡啶-3-胺の代替品としては、他の芳香族アミン化合物や類似の除草剤が考えられます。ただし、他の化合物と同様に、代替品の選択には安全性と効果性...
3-フェニル-3,4-ジヒドロ-2H-1,4-ベンゾキサジンを取り扱う際の実験室安全事項は何ですか?
3-フェニル-3,4-ジヒドロ-2H-1,4-ベンゾキサジンを取り扱う際は、防塵マスク、ゴーグル、ゴム手袋を使用し、ドラフトチャンバー内で作業することを推奨しま...
掲載誌
Journal of Materials Chemistry A

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment














