Interaction between adsorbed hydrogen and potassium on a carbon nanocone containing material as studied by photoemission

Journal Article · Mon Sep 14 00:00:00 EDT 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4930569· OSTI ID:22489476

Yu, Xiaofeng ^[1]; Raaen, Steinar ^[2]

---

1. Nesna University College, 8700 Nesna (Norway)
2. Physics Department, Norwegian University of Science and Technology, 7491 Trondheim (Norway)

Hydrogen adsorption on a potassium doped carbon nanocone containing material was studied by photoelectron spectroscopy and work function measurement. The valence band spectra indicate that there is charge transfer from potassium to carbon. Upon deposition on carbon potassium is in its ionic state for lower doping and shows both ionic and metallic behavior at higher doping. Adsorption of hydrogen facilitates diffusion of potassium on the carbon material as seen by changes in the K{sub 2p} core level spectrum. Variations in the measured sample work function indicate that hydrogen initially adsorb on the K dopants and subsequently adsorb on the carbon cone containing material.

• OSTI ID: 22489476
• Journal Information: Journal of Applied Physics, Vol. 118, Issue 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADSORPTION
CARBON
CONES
DEPOSITION
DIFFUSION
DOPED MATERIALS
HYDROGEN
NANOSTRUCTURES
PHOTOELECTRON SPECTROSCOPY
PHOTOEMISSION
POTASSIUM
SPECTRA
WORK FUNCTIONS