X-Ray photoelectron spectroscopy (XPS) analysis were performed on the calcined ... It is observed that the samples Al and 1CuAl are poorly crystalline materials and present X-ray patterns of an ...

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The carbon cycle is the biogeochemical cycle focused on carbon and how it is sequestered in and moves between different reservoirs in the Earth system. Microbial activity in marine sediment acts ...

Thus, the CBDs can be classified in two large groups of materials based on carbon: 12-16 carbon quantum dots (CQDs), which present a quantum confinement and crystalline structure ... X-ray ...

[6] Effect of annealing in an H 2 gas atmosphere on the physical properties for 70V 2 O 5· 30TeO 2 (mol%) glasses ...