Preparation and hydrogen sorption performance of a modified Zr–C getter

Xiong, Yongliang; Wei, Xiuying; Qin, Guanlin; Yuan, Peiyan; Mao, Chang Hui; Du, Juan

doi:10.1016/j.vacuum.2007.10.008

Cited by 16 publications

(5 citation statements)

References 4 publications

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“…Alternatively, intermetallic compounds combining last transition metals, such as Ni and Co, with early transition metals or REs can be used as secondary phases. In this case, they tend to disproportionate upon activation leading to the segregation of catalytic Ni and Co nanoparticles which facilitate dihydrogen dissociation at the getter surface [25,33,34].…”

Section: Discussionmentioning

confidence: 99%

“…However, they need to be heated at rather high temperature (850 °C) to be activated. Efforts have been made to lower this activation temperature by adding the intermetallic compound LaNi5 to the Zr and C mixture [25]. Sorption properties at room temperature (RT), as concern both the absorption speed as a function of time and quantity of hydrogen absorbed, have been compared to the non-modified getter (without LaNi5 addition).…”

Section: Zr-cmentioning

confidence: 99%

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Intermetallic alloys as hydrogen getters

Cuevas

Latroche

2022

Journal of Alloys and Compounds

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Section: Discussionmentioning

confidence: 99%

Section: Zr-cmentioning

confidence: 99%

Intermetallic alloys as hydrogen getters

Cuevas

Latroche

2022

Journal of Alloys and Compounds

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“…The Majorana representation and the Majorana mass term will be discussed in details in a separate publication 10 .…”

Section: Spinon and Chargon: General Couplingsmentioning

confidence: 99%

From the fourth color to spin-charge separation: Neutrinos and spinons

Xiong

2015

Mod. Phys. Lett. A

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We introduce the spin-charge separation mechanism to the quark-lepton unification models which consider the lepton number as the fourth color. In certain finite-density systems, quarks and leptons are decomposed into spinons and chargons, which carry the spin and charge degrees of freedom respectively. Neutrinos can be related to the spinons with respect to the electric-charge and spin separation in the early universe or other circumstances. Some effective, probably universal couplings between the spinon sector and the chargon sector are derived and a phenomenological description for the chargon condensate is proposed. It is then demonstrated that the spinon current can induce vorticity in the chargon condensate, and spinon zero modes are trapped in the vortices, forming spinon-vortex bound states. In cosmology this configuration may lead to the emission of extremely high energy neutrinos when vortices split and reconnect.Keywords: massive neutrinos, spin-charge separation, quark-lepton unification The fourth color and the haplon modelNeutrinos are one of the most important probes to the quark-lepton unification. It has been proposed forty years ago that the lepton number can be considered as the fourth "color" 1 in the frameworks based on the gauge group SU (2) L × SU (2) R × SU (4) c , and the gauge group SO(10) 2 , respectively. Right-handed neutrinos are introduced in both models. The descents from the SO(10) are through the SU (5) group or the SU (2) L × SU (2) R × SU (4) c group. In the latter case the usual color group SU (3) c is extended to the group SU (4) c and the leptons are interpreted as the fourth color column. Using the original notations in Ref.1 , the first two generations of fermions are written as(1) where (P, N , λ, χ) indicates valency and (a, b, c, d) indicates color degrees of freedom. In Ref.1 the matrices (1) are also written in a composite way, with the more arXiv:1503.09158v1 [hep-ph]

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“…According to previous studies [15,16], the gettering process of a getter is composed of adsorption dominant process and diffusion dominant process. The gettering process starts with the H 2 molecules adsorption and decomposition, subsequently H diffusion into the bulk of the getter, and the latter needs high reaction energy.…”

Section: Pumping Properties At Different Working Temperaturesmentioning

confidence: 99%