NiO hollow nanospheres with different surface by a bubble-template approach and its gas sensing

Acceleration of ammonium phosphate hydrolysis using TiO2 microspheres as a catalyst for hydrogen production

“…44 ) and NiO. 45 All such reported studies supported the “soft template” mechanism of the produced CO 2 bubbles for the self-assembly of the produced aggregates. For the current study, it is believed that the quantity of urea and thereby that of the CO 2 bubbles will directly affect the morphology of the product TiO 2 .…”

“…[33][34][35] For instance, Zhou et al prepared hollow Sn 2 Nb 2 O 7 microspheres using urea as a source of bubbles, which will act as a template for the formation of the microspheres. 36 Similarly, urea was used as a source of bubbles to solvothermally produce microspheres of numerous materials, such as BiVO 4 , 37 K 4 Nb 6 O 17 , 38 hydroxyapatite, 39,40 45 All such reported studies supported the "so template" mechanism of the produced CO 2 bubbles for the self-assembly of the produced aggregates. For the current study, it is believed that the quantity of urea and thereby that of the CO 2 bubbles will directly affect the morphology of the product TiO 2 .…”

Ni/NiO/C hollow microspheres fabricated by a mist-CVD process using ethanolamine: an efficient OER catalyst

“…Various routes, such as self-templating, 25 hard-templating, 26 soft-templating, 27 and template-free methods, 28 have been utilized to synthesize NiO hollow microspheres. Wang et al 26 prepared NiO hollow microspheres using a hard template, and the preparation process involved a multi-step reaction, including the synthesis of sulfonated polystyrene microspheres, the growth of NiO precursor and the removal of templates.…”

Oxygen Interactions with Covalently Grafted 2D Nanometric Carboxyphenyl Thin Films—An Experimental and DFT Study

“…In general, oxygen bubbles and microbubbles are interesting prospects for future practical applications, and they allow exploration of the electrical characteristics of the gas-water interface using different analytical approaches. They are engaged in several activities, including photoassisted water splitting reactions [12,13], in the fabrication of gas-sensing electrodes [14,15], Scheme 1. The surface modification of Au with PhCOOH layers and the interaction of the generated interface with molecular oxygen are depicted schematically.…”