Browsing NTNU Open by Author "Sarfraz, Adnan"
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Azobenzene-based self-assembled monolayer modified gold electrodes: Thioacetate suppresses, thiole enhances perchlorate adsorption
Pang, Beibei; Iqbal, Danish; Sarfraz, Adnan; Biedermann, Paul Ulrich; Erbe, Andreas (Journal article; Peer reviewed, 2022) -
Cathodic delamination kinetics of thin polystyrene model coatings bound to zinc via organosilanes
Iqbal, Danish; Rechmann, Julian; Bashir, Ali; Sarfraz, Adnan; Altin, Abdulrahman; Erbe, Andreas (Journal article; Peer reviewed, 2018)The cathodic delamination of poly(styrene) [PS] model coatings from oxidecovered zinc has been evaluated by scanning Kelvin probe (SKP). Linear and acrylate cross-linked PS model coatings covalently bound to zinc oxide ... -
Charge transfer quantification in a SnOx/CuPc semiconductor heterostructure: investigation of buried interface energy structure by photoelectron spectroscopies
Krzywiecki, Maciej; Grzadziel, Lucyna; Sarfraz, Adnan; Erbe, Andreas (Journal article; Peer reviewed, 2017)A tin oxide/copper phthalocyanine (CuPc) layer stack was investigated with two complementary photoemission methods. Non-destructive analysis of the electronic properties at the SnOx/CuPc interface was performed applying ... -
Cyclodextrin inhibits zinc corrosion by destabilizing point defect formation in the oxide layer
Altin, Abdulrahman; Krzywiecki, Maciej; Sarfraz, Adnan; Toparli, Cigdem; Laska, Claudius; Kerger, Philipp; Zeradjanin, Aleksandar; Mayrhofer, Karl J.J.; Rohwerder, Michael; Erbe, Andreas (Journal article; Peer reviewed, 2018)Corrosion inhibitors are added in low concentrations to corrosive solutions for reducing the corrosion rate of a metallic material. Their mechanism of action is typically the blocking of free metal surface by adsorption, ... -
Detection of intra-band gap defects states in spin-coated sol-gel SnOx nanolayers by photoelectron spectroscopies
Grządziel, Lucyna; Krzywiecki, Maciej; Szwajca, Anna; Sarfraz, Adnan; Genchev, Georgi; Erbe, Andreas (Journal article; Peer reviewed, 2018)The presence of occupied intra-band gap states in oxygen-deficient tin dioxide (SnO x ; 1 < x < 2) is crucial for efficient manufacturing of multipurpose electronic devices based on transparent conducting oxides. Former ... -
Gradient in defect density of ZnO nanorods grown by cathodic delamination, a corrosion process, leads to end-specific luminescence
Iqbal, Danish; Sarfraz, Adnan; Erbe, Andreas (Journal article; Peer reviewed, 2018)ZnO nanorods were grown on a zinc substrate via cathodic delamination of a polymer coating, a tailored corrosion process, at room temperature. A comparison between in situ Raman spectra and post mortem cross sectional ... -
In situ and operando observation of surface oxides during oxygen evolution reaction on copper
Toparli, Cigdem; Sarfraz, Adnan; Wieck, Andreas D.; Rohwerder, Michael; Erbe, Andreas (Journal article; Peer reviewed, 2017)Formation and dissolution of oxide on copper under transpassive conditions, i.e. during OER and transpassive dissolution, in alkaline electrolyte was investigated by a combination of electrochemical techniques and in situ ... -
Pretreatment with a β-cyclodextrin - corrosion inhibitor complex stops an initiated corrosion process on zinc
Altin, Abdulrahman; Vimalanandan, Ashokandand; Sarfraz, Adnan; Rohwerder, Michael; Erbe, Andreas (Journal article; Peer reviewed, 2018)Metal pretreatment is typically the first step in a reliable corrosion protection system. This work explores the incorporation of complexes between the cyclic oligosaccharide β-cyclodextrin (β-CD) and the molecular organic ...