Results 71 to 80 of about 6,511 (218)

Water Electrolysis Technologies for Extraterrestrial Water Resource Conversion

EcoEnergy, EarlyView.
This paper reviews four water electrolysis technologies for extraterrestrial water conversion: alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide water electrolysis, and anion exchange membrane water electrolysis. It elaborates on their mechanisms, components, and integration, highlighting challenges such as water ...
Yawen Jiang, Yuan Zhao, Lin Zu, Lili Ling, Yongwei Zhao, Jun Di, Pin Song   +6 more
wiley   +1 more source

Studies on strontium substituted rare earth manganites

, 1999
Sintering, electrical conductivity and thermal expansion behaviour of combustion synthesised strontium substituted rare earth manganites with the general formula Ln(1-x)Sr(x)MnO(3) (Ln = Pr, Nd and Sm; x = 0, 0.16 and 0.25) have been investigated as ...
Aruna, ST, Muthuraman, M, M. Muthuraman, Patil, KC, K.C. Patil, S.T. Aruna   +5 more
core   +1 more source

Recent Advances of Perovskite Oxides for Air Pollution Control Chemistry: The Closed Loop From Design to Application

EcoEnergy, EarlyView.
This review summarizes a descriptor‐guided framework for linking theoretical calculations, in situ/operando characterization, synthesis regulation, and application screening in functional materials. Emphasis is placed on dynamic structure–property relationships that enable low‐cost material design with enhanced activity, stability, and environmental ...
Yanyu Jin, Zezheng Tang, Hengfan Wu, Xing Yuan, Zongxiang Yang, Weijia An, Wenquan Cui, Xianguang Meng, Ying Xu, Junhua Li   +9 more
wiley   +1 more source

Local‐distortion regulation of small‐polaron transport: A design degree of freedom for thermoelectric oxides

InfoMat, EarlyView.
The thermoelectric performance of oxides is closely linked to how small polarons move through a locally distorted crystal lattice. Here, we compare Ce‐ and La‐doped CaMnO3 with comparable carrier concentrations but distinctly different local distortion backgrounds, showing that stronger distortion more strongly traps small polarons and delays their ...
Yang Zhang, Chengpeng Dong, Huimin Chen, Yihua Zhang, Guyang Peng, Yuxuan Yang, Lu Chen, Minghua Yang, Zhihao Zhao, Tong Song, Chaoliang Zhang, Tianle Xie, Kangjin Zhou, Kun Wang, Yushan Guo, Zhi Cao, Faming Cai, Fei Li, Haijun Wu, Jun Sun, Xiangdong Ding   +20 more
wiley   +1 more source

Electronically soft phases in manganites [PDF]

Nature, 2005
The phenomenon of colossal magnetoresistance in manganites is generally agreed to be a result of competition between crystal phases with different electronic, magnetic and structural order; a competition which can be strong enough to cause phase separation between metallic ferromagnetic and insulating charge-modulated states.
G C, Milward, M J, Calderón, P B, Littlewood   +2 more
openaire   +2 more sources

Epitaxial La0.5Sr0.5MnO3‐δ Bipolar Memristive Devices with Tunable and Stable Multilevel States

Advanced Materials Interfaces, 2023
Valence change memories are novel data storage devices in which the resistance is determined by a reversible redox reaction triggered by voltage. The oxygen content and mobility within the active materials of these devices play a crucial role in their ...
Carlos Moncasi, Gauthier Lefèvre, Quentin Villeger, Laetitia Rapenne, Thoai‐Khanh Khuu, Fabrice Wilhelm, Andrei Rogalev, Carmen Jiménez, Mónica Burriel   +8 more
doaj   +1 more source

Perovskite‐Based Catalysts for the Oxygen Evolution Reaction: Synthesis, Device Relevant Performance, and Scale‐Up Strategies

Small, EarlyView.
Perovskites are emerging as catalysts for acidic oxygen evolution in proton exchange membrane water electrolyzers. This manuscript focuses on catalyst behavior under device‐relevant conditions, highlighting surface reconstruction, elemental utilization, and membrane electrode assembly performance. By linking materials design with electrolyzer operation,
Jala Bib Khan, Norbert Kazamer, Marco Brand, Tim Hülser, Clemens Pollerberg, Ulrich Rost   +5 more
wiley   +1 more source

Efectos intergranulares en perovskitas de manganeso nanocristalinas

Boletín de la Sociedad Española de Cerámica y Vidrio, 2000
Intergranular magnetotransport effects are studied on polycrystalline manganites. Reducing grain size through sol-gel technology allows us to show new results on these materials.
Hueso, L. E., Fondado, A., Rivas, J., Rivadulla, F., López-Quintela, M. A   +4 more
doaj  

Interferometric Vector Piezoresponse Force Microscopy for Simultaneous Ferroelectric Domain and Crystallographic Orientation Mapping in Uniaxial Ferroelectric Polycrystals

Small, EarlyView.
Interferometric vector piezoresponse force microscopy is used to reconstruct crystallographic grain orientations in polycrystalline ferroelectrics directly from local electromechanical response. The approach reveals grain orientation, polarization direction, and domain structure simultaneously, establishing a pathway toward EBSD‐like orientation ...
R. Dragland, J. Schultheiß, I. N. Ushakov, R. Proksch, D. Meier   +4 more
wiley   +1 more source

Structural and chemical stability of the hexagonal manganites

, 2017
The link between atomic interactions and functional properties in the fascinating material system called hexagonal manganites is investigated in this thesis.
Skjærvø, Sandra Helen
core   +1 more source