Copper adatoms mediated adsorption of benzotriazole on a gold substrate

Grillo, Federico; Gattinoni, Chiara; Larrea, Christian Rodriguez; Lacovig, Paolo; Richardson, Neville V.

doi:10.1016/j.apsusc.2022.154087

Cited by 5 publications

(4 citation statements)

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“…However, the presence of Cu(I) could not be directly determined due to the absence of a clear shift in the BE position of metal Cu and Cu(I); it could only be inferred from XPS analysis that some of the metal Cu was oxidized to Cu(II) and bound with BTA. From the N 1s spectrum (Figure e), two distinct 1s BE peaks were observed for both BTA-Ag and BTA-Cu: a higher peak at 400.01 eV (BTA-Ag) and 400.10 eV (BTA-Cu), attributed to the N atoms on BTA not involved in metal (M n+ ) coordination, and a lower peak at 399.56 eV (BTA-Ag) and 399.66 eV (BTA-Cu), attributed to the N atoms on BTA involved in metal coordination . Generally, it was believed that three N atoms in the five-membered ring of BTA have the same chemical environment, and during the inhibition process, it was mainly the #2 and #3 N atoms (Figure ) that coordinate with the metal ions .…”

Section: Resultsmentioning

confidence: 95%

“…From the N 1s spectrum (Figure 4e), two distinct 1s BE peaks were observed for both BTA-Ag and BTA-Cu: a higher peak at 400.01 eV (BTA-Ag) and 400.10 eV (BTA-Cu), attributed to the N atoms on BTA not involved in metal (M n+ ) coordination, and a lower peak at 399.56 eV (BTA-Ag) and 399.66 eV (BTA-Cu), attributed to the N atoms on BTA involved in metal coordination. 38 Generally, it was believed that three N atoms in the five-membered ring of BTA have the same chemical environment, and during the inhibition process, it was mainly the #2 and #3 N atoms (Figure 2) that coordinate with the metal ions. 39 Based on the peak areas (with excess corrosion inhibitor in this study), it could be inferred that BTA mainly coordinated with Ag(I) through the #2 and #3 N atoms (399.56 eV), and coordinated with Cu(II) through one of the #2 or #3 N atoms (399.66 eV), leaving the remaining N atoms (400.01/400.10 eV) uncoordinated.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Microscale Corrosion Inhibition Behavior of Four Corrosion Inhibitors (BTA, MBI, MBT, and MBO) on Archeological Silver Artifacts Based on Scanning Electrochemical Cell Microscopy

Sun,

Liu,

et al. 2023

Anal. Chem.

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The problem of corrosion-induced discoloration and embrittlement in silverware is a significant concern for the long-term preservation of excavated archeological silver artifacts, even after thermal restoration. The key to addressing this issue lies in the meticulous selection and evaluation of corrosion inhibitors that possess targeted corrosion inhibition capabilities. This study focuses on the evaluation of corrosion inhibitors for archeological silver artifacts using scanning electrochemical cell microscopy (SECCM) and X-ray photoelectron spectroscopy (XPS). The researchers aimed to compare the inhibition effects of four corrosion inhibitors [1,2,3-benzotriazole (BTA), 2-mercaptobenzimidazole (MBI), 2-mercaptobenzothiazole (MBT), and 2-mercaptobenzoxazole (MBO)] on a simulated Ag–Cu alloy sample and understand their mechanisms. The results showed that MBT exhibited better corrosion inhibition for microstructural regions with higher silver content due to its ability to form stable chelation structures with Ag(I). MBO exhibited better corrosion inhibition for microstructural regions with higher copper content due to its strong affinity with Cu(I). The targeted corrosion inhibition ability for the β-phase was ranked as MBO > BTA ≈ MBI > MBT, while for the α-phase the ranking was MBT > MBO > MBI > BTA. The study demonstrated the feasibility and capabilities of SECCM in the targeted screening of corrosion inhibitors for different compositions and microstructural regions in archeological metal artifacts. This study highlights the potential of SECCM in corrosion inhibitor research for archeological metal artifacts and wider applications in metal material corrosion protection.

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Section: Resultsmentioning

confidence: 95%

Section: ■ Results and Discussionmentioning

confidence: 99%

Microscale Corrosion Inhibition Behavior of Four Corrosion Inhibitors (BTA, MBI, MBT, and MBO) on Archeological Silver Artifacts Based on Scanning Electrochemical Cell Microscopy

Sun,

Liu,

et al. 2023

Anal. Chem.

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“…As shown in Figure 2c, the N 1s peak of the M-BT powder was deconvoluted into three separate peaks with binding energies of 399.1, 400.0, and 400.6 eV, corresponding to the N−C, N− N�N, and H−N−C bonds in M-BT, respectively. 40 Since the number of N atoms forming the corresponding bond is equal, the area ratio of the three peaks is nearly 1:1:1. However, in M-BT-treated ZnO, the deconvoluted N 1s spectra exhibited different area ratios for the three peaks.…”

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confidence: 99%

“…To further confirm the chemical binding of M-BT on the ZnO surface, we analyzed the XPS spectra of the N 1s core level on M-BT powder and ZnO/M-BT film. As shown in Figure c, the N 1s peak of the M-BT powder was deconvoluted into three separate peaks with binding energies of 399.1, 400.0, and 400.6 eV, corresponding to the N–C, N–NN, and H–N–C bonds in M-BT, respectively . Since the number of N atoms forming the corresponding bond is equal, the area ratio of the three peaks is nearly 1:1:1.…”

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confidence: 99%

Long-Term Thermal Stability of Nonfullerene Organic Solar Cells via Facile Self-Assembled Interface Passivation

Lee,

Jin,

Moon

et al. 2023

ACS Energy Lett.

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Although the morphological instability of the bulkheterojunction (BHJ) organic solar cells (OSCs) based on a smallmolecule nonfullerene acceptor (SM-NFA) is regarded as an important issue for understanding thermal stability, interfacial deterioration between the chemically vulnerable SM-NFAs and an interfacial layer containing reactive species is also crucial. Herein, we identified that chemical degradation of SM-NFA on a zinc oxide (ZnO) interfacial layer under thermal stress is more critical by systematically examining three SM-NFAs that have different thermal transition temperature (T g ) values; as T g decreased, the interfacial degradation of SM-NFAs increased. However, the introduction of a highly polar and volatile molecule, 5-methyl-1Hbenzotriazole (M-BT), into the BHJ effectively passivates the defects of the ZnO surface by forming a self-assembled layer. The optimized target device exhibited excellent long-term thermal stability that retains above 85% of the initial efficiency after 1000 h (=T 85 ) at 85 °C under a N 2 atmosphere, while a short T 85 within 20 h was obtained in the control device.

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Understanding the passivation layer formed by tolyltriazole on copper, bronze, and brass surfaces

Rossin,

Grillo,

Francis

et al. 2024

Applied Surface Science

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Copper adatoms mediated adsorption of benzotriazole on a gold substrate

Cited by 5 publications

References 76 publications

Microscale Corrosion Inhibition Behavior of Four Corrosion Inhibitors (BTA, MBI, MBT, and MBO) on Archeological Silver Artifacts Based on Scanning Electrochemical Cell Microscopy

Microscale Corrosion Inhibition Behavior of Four Corrosion Inhibitors (BTA, MBI, MBT, and MBO) on Archeological Silver Artifacts Based on Scanning Electrochemical Cell Microscopy

Long-Term Thermal Stability of Nonfullerene Organic Solar Cells via Facile Self-Assembled Interface Passivation

Understanding the passivation layer formed by tolyltriazole on copper, bronze, and brass surfaces

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