The interfacial ionic transport of two-dimensional ZnAl-mixed metal oxides nanocomposite

Novel Perovskite Structured Nd0.5Ba0.5Co1/3Ni1/3Mn1/3O3−δ as Highly Efficient Catalyst for Oxygen Electrode in Solid Oxide Electrochemical Cells

“…Infrared spectroscopy was performed on NBCNM before testing and after SOFC and SOEC operations, and the test results are shown in Figure e. The infrared spectrum can be divided into four regions, among which, A1 and A2 regions are both O–H vibrational peaks in the range of 3500–3800 cm –1 mainly due to the material’s own post-testing water absorption, while the hydroxyl peaks near 1500 cm –1 are attributed to the passage of large amounts of water vapor at the cathode end of the material during the testing process, resulting in some O–H entering into the vibrational peaks in the A3 region, which are mainly CO bonds and CO 3 2– , are mainly due to the activation of NCAL at the anodic end by H 2 during the cell operation, causing some of the free Li + to migrate to the cathode and combine with CO 2 in the air to produce Li 2 CO 3 . − The vibrational peaks in the A4 region below 800 cm –1 are mainly considered as the absorption bands of metal oxides, when the number of spectral bands is small and often broadband, and the IR vibrations are classified as lattice vibration modes, mainly caused by the vibration of oxygen ions relative to metal cations or the relative movement between cations.…”

A Review on Low-Temperature Protonic Conductors: Principles and Chemical Sensing Applications

“…Metal oxides are considered crucial because they exhibit excellent electrical/electronic properties, the possibility of being doped with selective donors and acceptors ions using conventional methods, and adjustable band gap; the synthesis of mixed metal oxides with different crystalline conformations may improve proton transport in the resulting systems [74]. Metal oxides synthesized from different combinations of titanium, zinc, aluminum, niobium, vanadium, molybdenum, indium, tin, copper, barium, tantalum, and strontium oxides (and/or with selective dopants) have been used in protonic conductor applications [74][75][76][77][78][79].…”

A Review on the Use of Metal Oxide-Based Nanocomposites for the Remediation of Organics-Contaminated Water via Photocatalysis: Fundamentals, Bibliometric Study and Recent Advances

“…With these methods, it is possible to produce mixed MO nanocomposites composed of two or more metal oxides which interact at the surface and/or atomic level [ 81 ]. They have been preferentially used in technological applications, such as photocatalysts, due to the possibility of displaying improved structural and electronic properties, when compared to those known for their constituent oxides used individually [ 82 ].…”

“…When talking about heterogeneous (grain multiphase ( Figure 7 d), nanoplates ( Figure 7 e), among others) MO nanostructures [ 81 , 97 , 98 , 99 , 100 ], it is necessary to understand that the interaction between two or more metal oxides is seen as a viable alternative for the fabrication of MON systems with looked-for properties by simpler synthesis methods than those used for 3D hierarchical ones. The chosen synthesis method results in different textural, optical and morphological properties of the photocatalysts, which directly influence their chemical stability and recyclability [ 93 , 101 ].…”