Submitted for the MAR11 Meeting of The American Physical Society DNA-Templated Synthesis of Pt Nanoparticles on Single-Walled Carbon Nanotubes and their Electrocatalytic Properties QIANQIAN LIU, LIFENG DONG1, Missouri State University — Platinum (Pt) supported on singlewalled carbon nanotubes is one of the most efficient catalysts for both methanol and ethanol electroxidations. However, there i...

We report a new strategy for electrochemical detection of hepatitis C virus (HCV) based on the electrocatalytic signal amplification of gold nanoparticles (AuNPs) combining with a conformation-switched hairpin DNA probe for improving selectivity.

Quasi oxygen-deficient indium tin oxide nanoparticles (ITO NPs) were prepared by photoinduced chlorine doping, and exhibited much enhanced electrocatalytic activity for oxygen reduction reaction (ORR) in alkaline media, as compared with pristine ITO.

We report Pt nanocubes of ∼4.5 nm in size synthesized by thermal decomposition in the presence of PVP. The Pt cubic electrocatalysts with dominantly exposed {100} facets show much improved electrocatalytic activities in methanol, ethanol and formic acid electrooxidation.

A heated oxide covered copper electrode (HOCE) was facilely fabricated for the first time, providing a highly enhanced electrocatalytic oxidation, and cost effective and sensitive determination for polyhydroxy compounds such as glucose and shikimic acid.

Tetrahexahedral Au nanocrystals with exposed {520} facets have been prepared in high yield by facile seed-mediated growth and the as-synthesized tetrahexahedral Au nanocrystals possess enhanced electrocatalytic activity toward the oxidation of formic acid.

Thallium modified shape-controlled Pt nanoparticles were prepared and their electrocatalytic activity towards formic acid electrooxidation was evaluated in 0.5 M sulfuric acid. The electrochemical and in situ FTIR spectroscopic results show a remarkable improvement in the electrocatalytic activity, especially in the low potential region (around 0.1-0.2 V vs. RHE). Cubic Pt nanoparticles modifie...

Aiming at the investigation of spillover and transport effects in electrocatalytic reactions on bimetallic catalyst electrodes, we have prepared novel, nanostructured electrodes consisting of arrays of homogeneously distributed pairs of Pt and Ru nanodisks of uniform size and with controlled separation on planar glassy carbon substrates. The nanodisk arrays (disk diameter ≈ 60 nm) were fabricat...

Electrochemical sensors consisting of electrodes loaded with carbon nanotubes and Pt nanoparticles (PtNPs) protected by dendrimers have been developed using a facile method to fabricate them on two types of disposable electrochemical printed chips with a screen-printed circular gold or a screen-printed circular glassy carbon working electrode. The electrochemical performance of these sensors in...

In this contribution we report on the electrocatalytic reduction of CO2 for the production of liquid fuels by using two different approaches under i) liquid and ii) gas phase conditions. The main aim of the work is the comparison of these two experimental setups, in terms of productivity, kinds of liquid compounds produced and efficiencies, due to the differences in the mechanism which underlay...