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Attractive double-layer forces and charge regulation upon interaction between electrografted amine layers and silica

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Publisher
Academic Press
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Keywords
  • Amine Functionalities Have Been Introduced On Glassy Carbon Surfaces Through Electrografting Of 4-(2
  • The Grafted Layers Were Characterized By Ellipsometry And By Nanomechanical Mapping In Air And Aqueo
  • The Layer Was Found To Be 2
  • 5Nm Thick With Low Roughness
  • Comparable To That Of The Glassy Carbon Substrate
  • However
  • Small Semi-Spherical Features Were Observed In The Topographical Image
  • Indicating A Clustering Of The Grafted Amine Compound
  • The Nanomechanical Mapping Also Demonstrated Some Swelling Of The Layer In Water And Pointed Toward
  • The Forces Between An Aminated Glassy Carbon Surface And A μM-Sized Silica Particle In Aqueous Solu
  • The Results Demonstrate That An Attractive Double-Layer Force Predominates At Large Separations
  • And That The Surface Charge Densities Increase As The Separation Between The Surfaces Decreases
  • The Degree Of Charge Regulation On The Aminated Glassy Carbon Is Significant
  • The Relatively Low Surface Charge Density Of The Aminated Glassy Carbon Is Attributed To Significant

Abstract

Attractive double-layer forces and charge regulation upon interaction between electrografted amine layers and silica - DTU Orbit (27/05/14) Attractive double-layer forces and charge regulation upon interaction between electrografted amine layers and silica - DTU Orbit (27/05/14) Dunér, G, Iruthayaraj, J, Daasbjerg, K, Pedersen, SU, Thormann, E & Dėdinaitė, A 2012, 'Attractive double-layer forces and charge regulation upon interaction between electrografted amine layers and silica' Journal of Colloid and Interface Science, vol 385, no. 1, pp. 225-234., 10.1016/j.jcis.2012.06.071

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