The effect of B site doping on infrared emissivity of lanthanum manganites La0.8Sr0.2Mn1−B O3 (B = Ti or Cu)

Infrared emissivity of Sr doped lanthanum manganites in coating form

“…4 shows the relationship between the ε N of the coatings and LSMO concentration in both 3-5 and 8-14 m wavebands. As can be seen in the figure, ε N of the coatings decreases with increasing LSMO, and ε N of x = 100% sample in the 8-14 m waveband decreases to 0.693, which was reported in our previous work [25]. The reason for this can be explained by Fig.…”

Composite structure and enhanced photocatalytic activity in Mn–Co–Ni–O/LaMnO3 microparticles

“…The MnO 6 octahedra in LM perovskite is cooperatively distorted due to Jahn-Teller instability of the Mn 3+ ions, which is responsible for second absorption structure near 600 nm. The decrease in lattice symmetry caused by the perovskite structure can effectively promote the absorption of lattice vibrations [17], thereby improving the light absorption in the long wavelength range. According to the previous study, there is another absorption structure located at 730 nm, which is attributed to the d-d transition of Co 3+ (t 2g ) → Co 2+ (t 2 ) [10].…”

Preparation of environmentally friendly high‐emissivity Ca2+‐Fe3+ co‐doped LaAlO3 ceramic

“…For example, they can be used in thermal furnaces to improve the efficiency of radiation heat transfer. [4][5][6][7] Infrared radiation materials such as SiC, SiB 6 , and cordierite have been applied to thermal equipment to improve their radiation heat transfer capacities at high temperatures. [8][9][10] However, these materials have two main drawbacks.…”