Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Scanning Electrochemical Microscopy Secm With Amalgam Microelectrodes
Download Scanning Electrochemical Microscopy Secm With Amalgam Microelectrodes full books in PDF, epub, and Kindle. Read online Scanning Electrochemical Microscopy Secm With Amalgam Microelectrodes ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Scanning Electrochemical Microscopy (SECM) with Amalgam Microelectrodes by : Douglas Alexander Rudolph
Download or read book Scanning Electrochemical Microscopy (SECM) with Amalgam Microelectrodes written by Douglas Alexander Rudolph and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis focuses on in-situ studies at the solid-liquid interface by combining scanning electrochemical microscopy (SECM) with gold and platinum mercury amalgam microelectrodes. It is shown that stripping voltammetry experiments at imaging amalgam microelectrodes provide laterally resolved insight on the electrochemistry of biogeochemically relevant processes. SECM provides information on electroactive surface processes with high spatial resolution, and offers the opportunity to study heterogeneous electron-transfer reactions. Thereby, chemical species of interest, such as metal ions, can be electrochemically detected at mercury amalgam electrodes. Platinum and gold mercury amalgam microelectrodes were developed for the detection of biogeochemically relevant analytes such as manganese and iron during SECM imaging experiments at the mineral/water interface establishing the fundamental basis of SECM imaging with amalgam microelectrodes. SECM experiments were performed for the quantitative determination of Mn2+ during the dissolution of microstructured manganese carbonate (rhodochrosite) precipitates at mildly acidic conditions. SECM images along with spatially resolved quantitative data on the Mn2+ concentration were obtained. This measurement concept was then extended to the investigation of the corrosion behavior of diamond-like carbon (DLC) protected zinc selenide (ZnSe) waveguides applied in mid-infrared attenuated total reflectance spectroscopy at strongly oxidizing conditions. The corrosion behavior of DLC coated and uncoated ZnSe crystals was studied obtaining laterally resolved information on the oxidative degradation of ZnSe at defects of the DLC layer utilizing SECM in combination with square wave anodic stripping voltammetry (SWASV) at gold amalgam microelectrodes. Thereby, insight on the corrosion behavior of ZnSe and concentration profiles of Zn2+ at oxidizing conditions was obtained. These results corroborate the utility of SECM imaging with amalgam microelectrodes for addressing relevant analytical questions. Finally, the developed amalgam microelectrodes were applied for SECM studies of iron-reducing proteins separated from Shewanella microbes in native polyacrylamide gels. After calibration of Pt/Hg microelectrodes in bulk solution for the targeted analytes (iron and sulfur species), SECM approach curves recorded above the native gel enabled positioning of the amalgam electrode in close proximity above protein bands with suspected iron-reducing activity. This technique enabled the (semi)quantitative determination of the anaerobic respiratory activity associated with microbial proteins/protein complexes responsible for the reductive dissolution of manganese and iron oxides above microbial protein bands separated in a native gel matrix.
Book Synopsis Scanning Electrochemical Microscopy by : Allen J. Bard
Download or read book Scanning Electrochemical Microscopy written by Allen J. Bard and published by CRC Press. This book was released on 2012-04-16 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of its simplicity of use and quantitative results, Scanning Electrochemical Microscopy (SECM) has become an indispensable tool for the study of surface reactivity. The fast expansion of the SECM field during the last several years has been fueled by the introduction of new probes, commercially available instrumentation, and new practical ap
Book Synopsis Applications of Microelectrodes and Scanning Electrochemical Microscopy (SECM) to Complex Environmental Interfaces by : Ana Cristina Perdomo Marin
Download or read book Applications of Microelectrodes and Scanning Electrochemical Microscopy (SECM) to Complex Environmental Interfaces written by Ana Cristina Perdomo Marin and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Quantitative Scanning Electrochemical Microscopy (SECM) Imaging of Single and Array Micro and Nanoband Edge Platinum Electrodes by : Ugne Mitrikeviciute
Download or read book Development of Quantitative Scanning Electrochemical Microscopy (SECM) Imaging of Single and Array Micro and Nanoband Edge Platinum Electrodes written by Ugne Mitrikeviciute and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Applications of Scanning Electrochemical Microscopy (SECM). by : Renkang Zhu
Download or read book Development and Applications of Scanning Electrochemical Microscopy (SECM). written by Renkang Zhu and published by . This book was released on 2007 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Use of Scanning Electrochemical Microscopy for the Detection and Quantification of Adsorbed Intermediates at Electrodes by : Joaquin Rodriguez Lopez
Download or read book The Use of Scanning Electrochemical Microscopy for the Detection and Quantification of Adsorbed Intermediates at Electrodes written by Joaquin Rodriguez Lopez and published by . This book was released on 2010 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning electrochemical microscopy (SECM) was used for the study and characterization of catalytic and electrocatalytic processes occurring at electrodes. The Surface Interrogation mode (SI-SECM) was introduced for the detection and quantification of adsorbed intermediates and products of catalyzed chemical and electrochemical reactions at noble metals (Pt, Au). In SI-SECM two micro electrodes (i.e. an SECM tip and a substrate of the desired material) are aligned concentrically at a micrometric distance where SECM feedback effects operate. A contrast mechanism based on feedback effects allows for the detection of reactive adsorbed intermediates at the substrate: the SECM tip generates a reactive homogeneous species that "micro-titrates" the substrate adsorbates to yield an electrochemical signal that contains information about the amount of intermediate and about its kinetics of reaction with the redox mediator. The technique was used for the study of the reactivity of three model small adsorbates: 1) the reactivity of adsorbed oxygen on Au and Pt with a reducing mediator was explored and suggested the detection of "incipient oxides" at these surfaces; kinetic parameters of the reactivity of Pt oxides with mediators were obtained, fit to theory and used to explain observations about the electrocatalytic behavior of Pt under anodizing conditions; 2) the reactivity of oxidizing mediators with adsorbed hydrogen on Pt was studied and showed the cation of N, N, N, N-tetramethyl-p-phenylenediamine (TMPD) to be a successful interrogation agent, the detection of hydrogen generated by the decomposition of formic acid on Pt at open circuit was investigated; 3) electrogenerated bromine was used to catalytically interrogate carbon monoxide at Pt, this reaction was previously unreported. The mentioned applications of SECM were validated through the use of digital simulations of diffusion in the complex SECM geometry through flexible commercial finite element method software.
Book Synopsis Scanning Electrochemical Microscopy (SECM) as a Probe of Interfacial Photochemical and Electrochemical Processes by :
Download or read book Scanning Electrochemical Microscopy (SECM) as a Probe of Interfacial Photochemical and Electrochemical Processes written by and published by . This book was released on 2008 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Multi-dimensional Methods for Scanning Electrochemical Microscopy (SECM) by : Mario Alberto Alpuche Avilés
Download or read book Development of Multi-dimensional Methods for Scanning Electrochemical Microscopy (SECM) written by Mario Alberto Alpuche Avilés and published by . This book was released on 2005 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scanning Electrochemical Microscopy for the Characterisation of Surfaces Modified with Biological Molecules by : Joanne L. Holmes
Download or read book Scanning Electrochemical Microscopy for the Characterisation of Surfaces Modified with Biological Molecules written by Joanne L. Holmes and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes a novel fabrication procedure for microelectrodes to be used with the scanning electrochemical microscope (SECM), the characterisation of a variety of novel impedance based immunosensors, and the characterisation of a novel oligonucleotide biosensor. The thesis firstly describes the development of a protocol for the fabrication of reproducible microelectrodes characterised to identify suitability in use with the SECM. The thesis then describes the use of SECM in feedback mode to interrogate a variety of antibody-polyelectrolyte films determining whether the changes observed by impedance were detectable by SECM. A screen printed carbon ink surface was patterned with an array of biotinylated polyethyleneimine (PEI) which was exposed to Neutravidin and then the biotinylated antibody of interest. Using ferrocenecarboxylic acid as the redox couple, the array was interrogated by SECM, scanning before and following exposure to a series of concentrations of the complementary antigen and a non-complementary antigen. Upon the exposure of the PEI/Neutravidin/biotinylated antibody array to the antigen, the feedback current over the functionalised region was observed to change. The change observed increased as the concentration of the antigen exposed to the array was increased showing linear correlation. On exposure of the array to a non-complementary antigen, only a small change in the feedback current was observed. NSE, PSA, Ciprofloxacin and NTx were all investigated with limits of detection of 0.5 pg ml-1, 1 pg ml-1, 0.1 ng ml-1 and 1 nM respectively. Finally using a similar method as employed above, SECM was utilised in the detection of binding events of short oligonucleotides. Once again scans were conducted before and after exposure to both complementary and non-complementary oligonucleotide sequences and by subtraction absolute changes in feedback current were determined. On exposure to the complementary oligonucleotide sequence a change in feedback was observed when the array was exposed to the non-complementary oligonucleotide sequence, as with the antibody/antigen array, only a small change in the feedback current was observed.
Book Synopsis Modelling Scanning Electrochemical Microscopy (SECM) Experiments on Microstructured Functionalised Surfaces by : Oleg Sklyar
Download or read book Modelling Scanning Electrochemical Microscopy (SECM) Experiments on Microstructured Functionalised Surfaces written by Oleg Sklyar and published by . This book was released on 2004 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flexible Microelectrode Probes for Scanning Electrochemical Microscopy by : Andreas Lesch
Download or read book Flexible Microelectrode Probes for Scanning Electrochemical Microscopy written by Andreas Lesch and published by . This book was released on 2012 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preparation and Scanning Electrochemical Microscopy (SECM) Applications of Carbon Fiber and Metal Particle Ultramicroelectrodes (UMEs) by : Emad El-Deen Mohamed El-Giar
Download or read book Preparation and Scanning Electrochemical Microscopy (SECM) Applications of Carbon Fiber and Metal Particle Ultramicroelectrodes (UMEs) written by Emad El-Deen Mohamed El-Giar and published by . This book was released on 2004 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Electron Transfer Processes and Surface Modifications with Scanning Electrochemical Microscopy (SECM) by : Marisa Sheffer
Download or read book Investigation of Electron Transfer Processes and Surface Modifications with Scanning Electrochemical Microscopy (SECM) written by Marisa Sheffer and published by . This book was released on 2008 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studing Charge Transfer Processes by the Scanning Electrochemical Microscope (Secm) by : Yoram Selzer
Download or read book Studing Charge Transfer Processes by the Scanning Electrochemical Microscope (Secm) written by Yoram Selzer and published by . This book was released on 1999 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scanning Electrochemical Microscopy (SECM) by : Kristian Torbensen
Download or read book Scanning Electrochemical Microscopy (SECM) written by Kristian Torbensen and published by . This book was released on 2011 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electroanalytical Chemistry by : Allen J. Bard
Download or read book Electroanalytical Chemistry written by Allen J. Bard and published by CRC Press. This book was released on 2011-11-16 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than three decades the Electroanalytical Chemistry Series has delivered the most in-depth and critical research related to issues in electrochemistry. Volume 24 continues this gold-standard with practical reviews of recent applications as well as innovative contributions from internationally respected specialists who highlight the emergence of new technologies and trends in the field.
Book Synopsis Scanning electrochemical microscope (SECM) study of charge transfer through solid/liquid interfaces, liquid/liquid interfaces, and bilayer lipid membranes by : Junfeng Zhou
Download or read book Scanning electrochemical microscope (SECM) study of charge transfer through solid/liquid interfaces, liquid/liquid interfaces, and bilayer lipid membranes written by Junfeng Zhou and published by . This book was released on 2000 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
