A Pt/SnO₂/rGO interface more capable of converting ethanol to CO₂ in ethanol electro-oxidation: a detailed experimental/DFT study

Abstract

In this study, we developed hierarchically structured Pt/SnO2/rGO electrocatalysts through a “layer-by-layer” synthetic strategy. Particularly, a morphologically controlled synthesis was adopted to obtain the regularly shaped SnO2 crystallites comprising the...

Large-Area and Visible-Light-Driven Heterojunctions of In2O3/Graphene Built for ppb-Level Formaldehyde Detection at Room Temperature

“…The O 1s spectrum of In­(OH) 3 is fitted to two peaks at 531.44 and 532.46 eV (Figure S6c), corresponding to InOH and surface-adsorbed oxygen/water, respectively. In the C 1s spectrum of InAG (Figure S6d), three peaks with binding energies at 284.81, 286.16, and 288.86 eV are assigned to CC/CC (sp 2 /sp 3 hybridized carbon), CO (hydroxyl or epoxy carbon), and CO (carboxyl) groups, respectively. ,, The N 1s peak at 400.57 eV and the S 2p peak at 167.78 eV can be observed in the spectrum of InAG (Figure S6e,f), proving the successful assembly of ANS/rGO nanosheets and In 2 O 3 nanorods.…”

“…In the C 1s spectrum of InAG (Figure S6d), three peaks with binding energies at 284.81, 286.16, and 288.86 eV are assigned to C�C/C�C (sp 2 /sp 3 hybridized carbon), C�O (hydroxyl or epoxy carbon), and C�O (carboxyl) groups, respectively. 9, 32,37 The N 1s peak at 400.57 eV and the S 2p peak at 167.78 eV can be observed in the spectrum of InAG (Figure S6e,f), proving the successful assembly of ANS/rGO nanosheets and In 2 O 3 nanorods. UPS was used to confirm the band structure of In 2 O 3 and ANS/rGO, as well as the charge transfer between them.…”

Activating bulk nickel foam for the electrochemical oxidization of ethanol by anchoring MnO2@Au nanorods

“…A carbon-neutral society depends on a sustainable energy system for high-efficiency energy conversion. 1–5 Direct methanol/ethanol fuel cells (DMFCs/DEFCs) can use the biomass-derived renewable fuels and possess high energy density, being promising candidates for such energy systems. 4,6,7 Compared with methanol, ethanol shows higher theoretical energy density (8.01 vs. 6.09 kW h kg −1 ) and lower permeability in membranes, 4 being more plausible as a fuel.…”

“…1–5 Direct methanol/ethanol fuel cells (DMFCs/DEFCs) can use the biomass-derived renewable fuels and possess high energy density, being promising candidates for such energy systems. 4,6,7 Compared with methanol, ethanol shows higher theoretical energy density (8.01 vs. 6.09 kW h kg −1 ) and lower permeability in membranes, 4 being more plausible as a fuel. However, the widespread application of DEFCs is impeded by their current utilization of noble Pt/Pd catalysts and the sluggish electro-oxidation kinetics of ethanol.…”

Ultrafine PdAgAu alloy nanowires for ethanol oxidation electrocatalysis

“…1–9 But the slow reaction kinetics of the ethanol oxidation reaction (EOR) greatly limits the commercial application of DEFCs. 10–12 At present, Pd-based nanomaterials are considered as one of the most effective EOR catalysts with excellent catalytic activity. 13–19 Nevertheless, the carbonaceous intermediates produced during the EOR will be adsorbed on the surface of Pd-based catalysts, which will reduce the catalytic performance.…”