As a clean and efficient energy conversion device, solid oxide fuel cells have been garnering attention due to their environmentally friendly adaptability. Consequently, they become one of the current research directions new energy. The cathode, as electrochemical reaction site an oxidation atmosphere in cells, plays key role determining output performance. In recent years, development double perovskite cathode materials with mixed ionic electronic conductors has made significant progress...

1.8 -μm-(Pb0.97La0.02)(Zr0.95−xSnxTi0.05)O3 antiferroelectric thick films with orthorhombic (x = 0.05 and 0.25) tetragonal 0.40) structure were deposited on platinum-buffered silicon substrates by using a chemical solution way. All the had uniform microstructure pure perovskite phase. With increasing x value, dielectric constant critical electric breakdown field of gradually increased, while their saturated polarizations decreased. As result, maximum recoverable energy-storage density was...

In this work, 1-μm-thick relaxor ferroelectric (FE) films with a typical composition of Pb0.91La0.09(Ti0.65Zr0.35)O3 (PLZT 9/65/35) were successfully deposited on platinum-buffered silicon substrates via sol-gel technique. The microstructure, electrical properties, and energy-storage performance the obtained thin investigated in detail. X-ray diffraction (XRD) analysis field-emission scanning electron microscopy pictures indicated that crystallized showed random orientation uniform dense...

Abstract Poriferous TiO 2 /GO (denoted as TGO-x%) photocatalysts with ultrathin grapheme oxide (GO) layer were prepared by a hydrothermal method, the adsorption and photocatalytic degradation its kinetics about Methylene blue(MB) studied systematically. All TGO-x% showed improved photodegradation performance. TGO-25% had excellent adsorptivity while TGO-20% exhibit highest visible light activity. The capacity for was 20.25 mg/g catalyst along k 1 0.03393 min·g /mg, this enhancement mainly...

A luminescence ferroelectric oxide, Na0.5Bi2.5Nb2O9 (NBN), system with bismuth layer structure introduced by lanthanide ion (Er3+) has been demonstrated to exhibit reversible, high-contrast modulation (95%) and excellent fatigue resistance based on visible-light-driven photochromism (407 nm or sunlight). The coloration decoloration process can be effectively read out dual modes, upconversion downshifting, reversibly converted between green dark gray alternating visible light sunlight...

Black zirconia ceramics has many problems, such as uneven color and poor phase stability. The reason for this phenomenon is that the colorant uses a with complex black spinel structure, also application of dyeing method. To improve uniformity stability ceramics, TiO2 was introduced to replace traditional spinel, high-temperature reduction method (HTR) employed prepare Ti-doped ceramic, stead conventional After HTR at 1400 °C, concentration Ti3+ oxygen vacancies increased, lightness ceramic...

Reversible luminescence photoswitching upon photochromic reactions with excellent reproducibility is achieved in a new inorganic material: Na(0.5)Bi(2.5)Nb2O9: Pr(3+) (NBN:Pr) ferroelectric oxides. Upon blue light (452 nm) or sunlight irradiation, the material exhibits reversible photochromism (PC) performance between dark gray and green color by alternating visible thermal stimulus without inducing any structure changes accompanied red emission at 613 nm. The coloration decoloration process...

The development of cathode materials with high catalytic activity and low cost is a challenge for CO2 electrolysis based on solid oxide cells. Herein, we report low-cost highly active metallic Fe nanoparticle-decorated Ruddlesden-Popper (La, Sr)FeO4+δ catalyst (Fe-RPLSF), which shows oxygen vacancy concentration robust reduction rate. At 850 °C, the current density cell Fe-RPLSF reaches −1920 mA cm–2 at voltage 1.5 V, Faraday efficiency as 100%. polarization resistance frequency (0.1–10 Hz),...

(100)-oriented Pb0.97La0.02(Zr0.95Ti0.05)O3 (PLZT) antiferroelectric films with a thickness of about 1.7 μm were deposited on Pt-buffered silicon substrates via sol-gel process. The room-temperature capacitance density the was above 195 nF/cm2 over frequency range from 1 kHz to MHz. recoverable energy enlarged increasing measurement field, and maximum value 12.4 J/cm3 at 1120 kV/cm obtained room temperature. From temperature-dependent electric-field-induced polarization hysteresis loops,...

A kind of new photosensitive material, Sm doped K_0.5Na_0.5NbO₃ (KNN) ceramics, exhibits excellent photochromism and reversible luminescence switching properties.

Er/Yb co-doped NBN photochromics exhibit excellent luminescence readout capability by using a two-photon absorption mode with extremely low destruction on information recording.

High luminescent switching contrast of photochromic materials is extremely important in improving the sensitivity and resolution optical switches high-density data storage devices. To date, conventional methods, such as tuning absorption emission bands based on electron or resonance energy transfer mechanisms well-known organic molecules compounds, have routinely been adopted to tune behavior. However, these strategies are not effectively applied luminescence inorganic because their crystal...

Owing to their natural abundance, the low potential, and cost of potassium, potassium-ion batteries are regarded as one alternatives lithium-ion batteries. In this work, we successfully fabricated a FeP/C composite, novel electrode material for PIBs, through simple productive high-energy ball-milling method. The delivers reversible capacity 288.9 mA·h·g–1 (2nd) at discharge rate 50 mA g–1, which can meet future energy storage requirements. Density functional theory calculations suggest lower...

20CrMnTi steel is widely used in the gear manufacturing field of engineering machinery. The addition Ti element to can effectively improve its low-temperature impact toughness and enhance mechanical properties. However, during smelting process 20CrMnTi, large-sized TiN inclusions are inevitably formed steel, which affects service performance improvement. This paper focuses on directional modification behaviors by rare earth Ce under deoxygenation conditions Si–Ca–Ba alloy. results show that...

1.5-μm-thick (Pb0.91La0.09)(Zr0.65Ti0.35)O3 (PLZT) relaxor ferroelectric (RFE) films doped by Mn from 0 to 5 mol. % were deposited on LaNiO3/Si(100) substrates via a sol-gel method. The microstructure, dielectric properties, and energy-storage performance of PLZT thin investigated as function content. X-ray diffraction patterns scanning electron microscopy indicated that all the possessed similar microstructure with pure perovskite phase. However, constant, average breakdown fields,...