Tuning graphene doping by carbon monoxide intercalation at the Ni(111) interface

Puppo, Simone del; Carnevali, Virginia; Perilli, Daniele; Zarabara, Francesca; Rizzini, A. Lodi; Fornasier, Gabriele; Zupanič, Erik; Fiori, Sara; Patera, Laerte L.; Panighel, Mirco; Bhardwaj, Sunil; Zou, Zhiyu; Comelli, Giovanni; Africh, Cristina; Cepek, Cinzia; Valentin, Cristiana Di; Peressi, Maria

doi:10.1016/j.carbon.2021.01.120

Cited by 13 publications

(3 citation statements)

References 37 publications

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“…Upon increasing the ethylene pressure to 1 mbar, the oligomer coverage increases. While at 0.1 mbar, only CO has been detected in the O 1s spectrum (Figure 4a), increasing the pressure of ethylene to 1 mbar leads to the formation of Ni oxide (Figure 4b) [55] . As imaged by UHV‐STM after exposure to 1 mbar, NiO patches appear as disordered islands (Figure 4c) [56] .…”

Section: Resultsmentioning

confidence: 98%

“…While at 0.1 mbar, only CO has been detected in the O 1s spectrum (Figure 4 a), increasing the pressure of ethylene to 1 mbar leads to the formation of Ni oxide (Figure 4 b). [55] As imaged by UHV‐STM after exposure to 1 mbar, NiO patches appear as disordered islands (Figure 4 c). [56] According to previous studies, CO dissociation on Ni(111) can be excluded as a source of oxygen.…”

Section: Resultsmentioning

confidence: 99%

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In Situ Observation of C−C Coupling and Step Poisoning During the Growth of Hydrocarbon Chains on Ni(111)

et al. 2022

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The synthesis of high‐value fuels and plastics starting from small hydrocarbon molecules plays a central role in the current transition towards renewable energy. However, the detailed mechanisms driving the growth of hydrocarbon chains remain to a large extent unknown. Here we investigated the formation of hydrocarbon chains resulting from acetylene polymerization on a Ni(111) model catalyst surface. Exploiting X‐ray photoelectron spectroscopy up to near‐ambient pressures, the intermediate species and reaction products have been identified. Complementary in situ scanning tunneling microscopy observations shed light onto the C−C coupling mechanism. While the step edges of the metal catalyst are commonly assumed to be the active sites for the C−C coupling, we showed that the polymerization occurs instead on the flat terraces of the metallic surface.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

In Situ Observation of C−C Coupling and Step Poisoning During the Growth of Hydrocarbon Chains on Ni(111)

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…While at 0.1 mbar, only CO has been detected in the O 1s spectrum (Figure 4a), increasing the pressure of ethylene to 1 mbar leads to the formation of Ni oxide (Figure 4b). [55] As imaged by UHV-STM after exposure to 1 mbar, NiO patches appear as disordered islands (Figure 4c). [56] According to previous studies, CO dissociation on Ni(111) can be excluded as a source of oxygen.…”

Section: Forschungsartikelmentioning

confidence: 99%

In Situ Observation of C−C Coupling and Step Poisoning During the Growth of Hydrocarbon Chains on Ni(111)

et al. 2022

Self Cite

View full text Add to dashboard Cite

The synthesis of high-value fuels and plastics starting from small hydrocarbon molecules plays a central role in the current transition towards renewable energy. However, the detailed mechanisms driving the growth of hydrocarbon chains remain to a large extent unknown. Here we investigated the formation of hydrocarbon chains resulting from acetylene polymerization on a Ni(111) model catalyst surface. Exploiting X-ray photoelectron spectroscopy up to near-ambient pressures, the intermediate species and reaction products have been identified. Complementary in situ scanning tunneling microscopy observations shed light onto the CÀ C coupling mechanism. While the step edges of the metal catalyst are commonly assumed to be the active sites for the CÀ C coupling, we showed that the polymerization occurs instead on the flat terraces of the metallic surface.

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Boudouard reaction under graphene cover on Ni(1 1 1)

Davì

Carraro

Stojkovska

et al. 2022

Applied Surface Science

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Tuning graphene doping by carbon monoxide intercalation at the Ni(111) interface

Cited by 13 publications

References 37 publications

In Situ Observation of C−C Coupling and Step Poisoning During the Growth of Hydrocarbon Chains on Ni(111)

In Situ Observation of C−C Coupling and Step Poisoning During the Growth of Hydrocarbon Chains on Ni(111)

In Situ Observation of C−C Coupling and Step Poisoning During the Growth of Hydrocarbon Chains on Ni(111)

Boudouard reaction under graphene cover on Ni(1 1 1)

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