Low-temperature synthesis of porous hollow structured Cu2O for photocatalytic activity and gas sensor application

Tuning SnO 2 architectures with unitary or composite microstructure for the application of gas sensors

“…The increase in adsorbed volume at higher relative pressures indicates interparticle porosity [31]. These shapes of curves display type IV isotherms according to the IUPAC classification, which is the characteristic isotherm of mesoporous materials [28,29]. The results reveal that the surface area of S1 and S2 are 10.48 and 18.46 m 2 /g, correspondingly.…”

“…As shown in Fig. 6a and b, hysteresis loops of S1 at the p/p 0 ranges of 0.75-0.98 and S2 at the p/p 0 ranges of 0.70-0.99 are associated with the filling and emptying of the mesopores by capillary condensation [29]. The increase in adsorbed volume at higher relative pressures indicates interparticle porosity [31].…”

“…Large specific surface area and well-defined pore can provide enough active sites and are also beneficial to the mass transportation of target analytes on the surface of gas sensors [28][29][30]. To gather BET surface area regarding on the S1 and S2 samples, the N 2 adsorption and desorption isotherms and pore size distribution measurements are conducted.…”

CdS nanowires decorated with Cu2O nanospheres: Synthesis, formation process and enhanced photoactivity and stability

“…A more cost-effective approach is to create band structure-matched heterojunctions, for example, type II heterojunctions, and then to facilitate the charge separation [31]. Cu 2 O is a p-type semiconductor with a small energy band gap of around 2 eV, and it has been extensively studied as an excellent photocatalytic material because of its outstanding spectral response to visible light [32][33][34][35][36]. However, the role of Cu 2 O in this work is to promote charge separation through forming a type II heterojunction with CdS nanowires.…”

Facile and template-free synthesis of spherical Cu2O as anode materials for lithium-ion batteries

“…Cuprous oxide (Cu 2 O), another important transition metal oxide, as a reddish p-type semiconductor with a direct forbidden band gap 2.17 eV, has a various applications in photo-catalysis [5], sensors [6], solar cells [7], CO oxidation, and lithium-ion batteries [8]. As used in lithium-ion batteries, Cu 2 O was regarded as a promising anode material due to some temptation advantages, such as its reversible mechanism with Li ?…”