Tailoring the surface-oxygen defects of a tin dioxide support towards an enhanced electrocatalytic performance of platinum nanoparticles

Abstract

Tin-dioxide nanofacets (SnO2 NFs) are crystal-engineered so that oxygen defects on the maximal {113} surface are long-range ordered to give rise to a non-occupied defect band (DB) in the bandgap. SnO2 NFs-supported platinum-nanoparticles exhibit an enhanced ethanol-electrooxidation activity due to the promoted charge-transport via the DB at the metal-semiconductor interface.

Chitosan nanoparticles having higher degree of acetylation induce resistance against pearl millet downy mildew through nitric oxide generation

“…Early blight and Fusarium wilt of tomato were significantly reduced due to Cu-chitosan nanoparticles 7 . Blast disease of rice and finger millet were effectively suppressed by Chitosan nanoparticles 8 , 24 .…”

Pt Nanoparticles Supported on Mesoporous CeO2 Nanostructures Obtained through Green Approach for Efficient Catalytic Performance toward Ethanol Electro-oxidation

“…Pt/CeO 2 nanostructures have been achieved by chemical reduction process similar to the previously reported protocol. 15 In a typical synthesis, 5 mM of aqueous Pt precursor solution (K 2 PtCl 4 •6H 2 O, was dissolved in 50 mL of Milli-Q water containing 50 mg of presynthesized CeO 2 nanostructures. This mixture was magnetically stirred for 2 h, followed by dropwise addition of 50 mL of freshly prepared 0.…”

Electrochemical CO2 reduction over nitrogen-doped SnO2 crystal surfaces

“…They were cleaved from the optimized SnO 2 bulk. These three planes encompass higher peaks in the XRD pattern than others [29][30][31][32] , which indicate that these crystal facets are relatively stable and easy to be exposed during the synthesis process. Furthermore, we chose oxygen atoms, which could be replaced by the N atom, as the terminated surfaces for different crystal faces.…”

“…The reported catalysts for the CO 2 -to-HCOOH conversion include Hg, In, Pd, Sn, Bi, Cd, Tl, Co 3 O 4 and SnO 2 [11][12][13][14][15][16][17] . Among these catalysts, SnO 2 holds great promise because of its high selectivity, cost-effectiveness, environmental friendliness, and outstanding thermal stability [18][19][20] . For example, a hierarchical SnO 2 microsphere catalyst demonstrated a remarkable catalytic activity and selectivity due to its hierarchical structure with abundant active sites for boosting the CO 2 RR [21] .…”