Enhancing the performance of photoelectrochemical glucose sensorviathe electron cloud bridge of Au in SrTiO₃/PDA electrodes

Abstract

Developing photoelectrochemical biosensors via efficient photogenerated-charge separation remains a challenging task in biomolecule detection. In this work, a gold electron cloud bridge constructed at the interface is proposed to improve the efficiency of charge separation.

Favoring Product Desorption by a Tailored Electronic Environment of Oxygen Vacancies in SrTiO3 via Cr Doping for Enhanced and Selective Electrocatalytic CO2 to CO Conversion

“…The size distribution histograms for pristine and Cr-STO 5 depicted in Figure c,f indicate reduced dimensions of pristine STO nanocubes from average sizes of 52–47 nm. The lattice fringe spacing of 0.273 nm for pristine STO (Figure S4) is consistent with the (110) lattice spacing of the perovskite cubic phase . The lattice fringe spacing of 0.277 nm for Cr-STO 5 was slightly larger than that of pristine STO, which again confirms the substitution of smaller Ti 4+ with larger Cr 3+ , in agreement with the XRD analysis.…”

“…The lattice fringe spacing of 0.273 nm for pristine STO (Figure S4) is consistent with the (110) lattice spacing of the perovskite cubic phase. 57 The lattice fringe spacing of 0.277 nm for Cr-STO 5 was slightly larger than that of pristine STO, which again confirms the substitution of smaller Ti 4+ with larger Cr 3+ , in agreement with the XRD analysis. The SAED pattern of pristine and doped STO shown in Figure 2b,e revealed a set of diffraction rings, indicating the polycrystalline nature of the catalyst, which can be indexed to the (110), (111), (200), and (211) planes of cubic SrTiO 3 .…”