Characterization of the surface changes during the activation process of erbium/erbium oxide for hydrogen storage.
Erbium is known to effectively load with hydrogen when held at high temperature in a hydrogen atmosphere. To make the storage of hydrogen kinetically feasible, a thermal activation step is required. Activation is a routine practice, but very little is known about the physical, chemical, and/or electronic processes that occur during Activation. This work presents in situ characterization of erbium Activation using variable energy photoelectron spectroscopy at various stages of the Activation process. Modification of the passive surface oxide plays a significant role in Activation. The chemical and electronic changes observed from core-level and valence band spectra will be discussed along with corroborating ion scattering spectroscopy measurements.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1026969
- Report Number(s):
- SAND2010-6958C; TRN: US201121%%180
- Resource Relation:
- Conference: Proposed for presentation at the AVS 57th International Symposium & Exhibition held October 17-22, 2010 in Albuquerque, NM.
- Country of Publication:
- United States
- Language:
- English
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