Visible-Light-Harvesting Hedgehog like Copper Bismuth Oxide: Optical, Structural and Electrochemical Properties

Enhanced Hydrogen Evolution Reaction Performances of Ultrathin CuBi2O4 Nanoflakes

“…Particularly, copper bismuth oxide (CuBi 2 O 4 ) possesses many potentials toward wide application areas; for example, electrocatalysts [14], photoelectrochemical water splitting [15][16][17], sensor [18][19][20], and photocatalysis [21][22][23][24]. Furthermore, the small band-gap energy (1.5-1.8 eV) and the high physicochemical stability of CuBi 2 O 4 allow us to use it in high-performance electrocatalytic water splitting [25][26][27][28]. With regard to the synthesis of the CuBi 2 O 4 nanostructure, there are a lot of experimental methods, for instance, solvothermal [21,29], combustion [30], coprecipitation [31][32][33], sonochemical [34,35], hydrothermal [22,36,37], solution process [26], drop casting [38], sputtering [39], sol-gel [40], and polymerization [19].…”

“…Furthermore, the small band-gap energy (1.5-1.8 eV) and the high physicochemical stability of CuBi 2 O 4 allow us to use it in high-performance electrocatalytic water splitting [25][26][27][28]. With regard to the synthesis of the CuBi 2 O 4 nanostructure, there are a lot of experimental methods, for instance, solvothermal [21,29], combustion [30], coprecipitation [31][32][33], sonochemical [34,35], hydrothermal [22,36,37], solution process [26], drop casting [38], sputtering [39], sol-gel [40], and polymerization [19]. Among these, the coprecipitation method is one of the prominent fabrication techniques because of its facileness, swiftness, cost-effectiveness, and high compatibility for mass production [41].…”