Open Access. Powered by Scholars. Published by Universities.®
- Discipline
Articles 1 - 3 of 3
Full-Text Articles in Chemistry
Combinatorial Synthesis And Reactivity Screening Of Electro-Oxidation Catalyst Gradients, Shrisudersan Jayaraman, Andrew C. Hillier
Combinatorial Synthesis And Reactivity Screening Of Electro-Oxidation Catalyst Gradients, Shrisudersan Jayaraman, Andrew C. Hillier
Andrew C. Hillier
Combinatorial methods represent an appealing experimental method for the discovery of heterogeneous catalysts. One can efficiently identify candidate materials or sample vast regions of composition space using a combination f dense catalyst libraries and high-throughput reactivity screening techniques. This is particularly appealing for the discovery of novel catalysts for low temperature fuel cells where multi-component systems have shown improved performance.
A Multi-Electrode Electrochemical And Scanning Differential Electrochemical Mass Spectrometry Study Of Methanol Oxidation On Electrodeposited Ptxruy, K. Jambunathan, S. Jayaraman, Andrew C. Hillier
A Multi-Electrode Electrochemical And Scanning Differential Electrochemical Mass Spectrometry Study Of Methanol Oxidation On Electrodeposited Ptxruy, K. Jambunathan, S. Jayaraman, Andrew C. Hillier
Andrew C. Hillier
Methanol electro-oxidation was studied on a series of electrodeposited PtxRuy catalysts constructed as multielement band electrodes. A combination of electrochemical and scanning differential electrochemical mass spectrometry measurements were performed to evaluate the composition-dependence of methanol oxidation, methanol decomposition, CO2 current efficiency, and the product distribution at 25 and 50 °C. At 25 °C, cyclic voltammetry revealed that the presence of Ru led to enhanced methanol oxidation rates over that of pure Pt. Methanol decomposition showed a similar composition-dependence. Mass spectrometry measurements revealed the evolution of HCOOH and CO2 during methanol oxidation and allowed indirect determination …
Construction And Reactivity Screening Of A Surface Composition Gradient For Combinatorial Discovery Of Electro-Oxidation Catalysts, Shrisudersan Jayaraman, Andrew C. Hillier
Construction And Reactivity Screening Of A Surface Composition Gradient For Combinatorial Discovery Of Electro-Oxidation Catalysts, Shrisudersan Jayaraman, Andrew C. Hillier
Andrew C. Hillier
Materials possessing gradients in composition or structure are of interest for a range of applications, including the construction of functionally graded structural materials, as novel sensor and actuator platforms, and to control the site-specific binding of proteins and cells on surfaces. Gradients can also be used as sample libraries for combinatorial materials discovery that present an extremely dense sample set.