In situ Investigation of the Silver-CTAB system

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Recent research has shown that biologically inspired approaches to materials synthesis and self-assembly, hold promise of unprecedented atomic level control of structure and interfaces. In particular, the use of organic molecules to control the production of inorganic technological materials has the potential for controlling grain structure to enhance material strength; controlling facet expression for enhanced catalytic activity; and controlling the shape of nanostructured materials to optimize optical, electrical and magnetic properties. In this work, we use organic molecules to modify silver crystal shapes towards understanding the metal-organic interactions that lead to nanoparticle shape control. Using in situ electrochemical AFM (EC-AFM) ... continued below

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Gray, J J; Orme, C A; Du, D & Srolovitz, D April 16, 2007.

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Recent research has shown that biologically inspired approaches to materials synthesis and self-assembly, hold promise of unprecedented atomic level control of structure and interfaces. In particular, the use of organic molecules to control the production of inorganic technological materials has the potential for controlling grain structure to enhance material strength; controlling facet expression for enhanced catalytic activity; and controlling the shape of nanostructured materials to optimize optical, electrical and magnetic properties. In this work, we use organic molecules to modify silver crystal shapes towards understanding the metal-organic interactions that lead to nanoparticle shape control. Using in situ electrochemical AFM (EC-AFM) as an in situ probe, we study the influence of a cationic surfactant cetyltrimethylamminobromide (CTAB) on Ag growth during electrochemical deposition on Ag(100). The results show that the organic surfactant promotes the growth of steps on the (100) surface and changes the surface evolution from island nucleation to step flow growth. Overall, this leads to a smoother, faster growing (100) surface, which may promote plate-formation.

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PDF-file: 7 pages; size: 1.1 Mbytes

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  • Presented at: Materials Research Society, San Francisco, CA, United States, Apr 08 - Apr 13, 2007

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  • Report No.: UCRL-CONF-230182
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 908103
  • Archival Resource Key: ark:/67531/metadc878002

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Office of Scientific & Technical Information Technical Reports

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  • April 16, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 29, 2016, 2:42 p.m.

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Gray, J J; Orme, C A; Du, D & Srolovitz, D. In situ Investigation of the Silver-CTAB system, article, April 16, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc878002/: accessed June 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.