https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Switched photocurrent on tin sulfide-based nanoplate photoelectrodes https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:30691 2 nanoplate photoelectrode is prepared by using a mild wet-chemical method. Depending on the calcination temperatures, SnS2-based photoelectrodes can either retain their n-type nature with greatly enhanced anodic photocurrent density (ca. 1.2 mA cm−2 at 0.8 V vs. Ag/AgCl) or be completely converted into p-type SnS to generate approximately 0.26 mA cm−2 cathodic photocurrent density at −0.8 V vs. Ag/AgCl. The dominance of sulfur and tin vacancies are found to account for the dramatically different photoelectrochemical behaviors of n-type SnS2 and p-type SnS photoelectrodes. In addition, the band structures of n-type SnS2 and p-type SnS photoelectrodes are also deduced, which may provide an effective strategy for developing SnS2/SnS films with controllable energy-band levels through a simple calcination treatment.]]> Sat 24 Mar 2018 07:35:09 AEDT ]]> Coupling 0D and 1D carbons for electrochemical hydrogen production promoted by a percolation mechanism https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38932 -2, a small Tafel slope of 87 mV dec-1 and prominent durability. Percolation theory was for the first time introduced to interpret the catalytic mechanism of the CD/CF catalysts. The special morphology assembled by the 0D carbons constituted the percolating clusters and promoted electron transport throughout the 1D carbons. The strategy and theory can be adapted to general electrocatalytic applications for achieving and interpreting precise tuning on highly efficient electron transfer in electrocatalysts.]]> Fri 15 Sep 2023 15:54:21 AEST ]]>