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Solid-state Analytical Characterization of Electrochemically Modified Glassy Carbon Electrodes by Mark L. Bowers; Jesse Hefter; Donald L. Dugger; Rosemary Wilson is a Chemistry article available to read on EtoBox.

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Glassy carbon l ctro s w r l ctroch mically mo ifi in sulfat , phosphat an carbonat m ia (an att mpts at mo ification w r tri in p rchlorat m ia) by cycling to high positiv pot ntials, yi l ing l ctro s capabl of incorporating cations . Unmo ifi an mo ifi l ctro s (with an without ruth nium-h xaammin or copp r-t traammin incorporation) w r xamin by scanning l ctron microscopy (SEM), n rgy isp rsiv x-ray analysis (EDX), s con ary ion mass sp ctrom try (SIMS) an x-ray photo l ctron sp ctroscopy (XPS) . Examination of l ctro s by SEM has shown that th sulfat -mo ifi l ctro s contain irr gularly shap r gions (ca . 2-20 μm in siz an < 5`,li of total ar a) that isapp ar on uptak of th Ru or Cu compl x s EDX an SIMS r v al th s ar as contain larg amounts of sulfur an sulfat , r sp ctiv ly . Th us of SIMS also in icat that th mo ifi l ctro s ha b n alt r to a pth of 100-300 nm (for l ctro s cycl for 10 min) . Also, XPS of th carbon cor -l v l sp ctra for mo ifi l ctro s show varying xt nts of functionalization p n ing on th mo ification m ia. How v r, on incorporation of r ox activ cations, th surfac app ar l ss oxi iz . Th m chamsm an structur for th formation of mo ifi l ctro s ar iscuss

Who reads Solid-state Analytical Characterization of Electrochemically Modified Glassy Carbon Electrodes?

Author

Mark L. Bowers; Jesse Hefter; Donald L. Dugger; Rosemary Wilson

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0003-2670)

Published

1991

Language

EN

Field

Chemistry (Physical Sciences)