Effect of Zr7Ni10 additive on hydrogen mobility in (TiCr1.8)1-xVx (x = 0.2, 0.4, 0.6, 0.8): An 1H NMR SFG study

Marina Shelyapina, Anna Dost, N. E. Skryabina, A. F. Privalov, M. Vogel, Daniel Fruchart

Результат исследований: Научные публикации в периодических изданияхстатья

Выдержка

In order to optimize hydrogen storage properties of bcc Ti–V–Cr alloys it was found that alloying with a few 4 at% of Zr 7Ni 10 results in acceleration the hydrogen sorption kinetics in the composite material. The novel intergranular phase plays a role of gate for hydrogen, leading parallel to its easy decrepitate, thus enhancing fast formation of Ti–V–Cr hydrides. Nevertheless, the question on how such a composite microstructure affects hydrogen mobility in the material is still open. Here we report on the results of the studies of hydrogen self-diffusion in hydrogenated (TiCr 1.8) 1-xV x based alloys (x = 0.2, 0.4, 0.6 and 0.8) carried out using proton nuclear magnetic resonance diffusiometry in a static field gradient . For all compounds the method has proved itself as a powerful tool to probe the microstructure of the multicomponent alloys with inhomogeneous element distribution in a few micrometer scale. It has been found that addition of Zr 7Ni 10 lowers the activation energy of hydrogen motion in (TiCr 1.8) 1-xV x alloys and leads appear two different diffusion areas. They can be associated with a redistribution of elements within the intra-granular phase due to opposite substitution of Ti and Ni atoms during synthesis and blurring the boundaries between the intra-granular and inter-granular phases.

Язык оригиналаанглийский
Число страниц9
ЖурналInternational Journal of Hydrogen Energy
DOI
СостояниеЭлектронная публикация перед печатью - 13 июл 2019

Отпечаток

Hydrogen
Nuclear magnetic resonance
nuclear magnetic resonance
hydrogen
Microstructure
Composite materials
Hydrogen storage
microstructure
composite materials
proton magnetic resonance
Alloying
blurring
Hydrides
Sorption
Substitution reactions
sorption
Activation energy
alloying
hydrides
micrometers

Предметные области Scopus

  • Физика конденсатов
  • Металлы и сплавы
  • Энергетическая технология
  • Технология топлива
  • Возобновляемые источники энергии и окружающая среда

Цитировать

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title = "Effect of Zr7Ni10 additive on hydrogen mobility in (TiCr1.8)1-xVx (x = 0.2, 0.4, 0.6, 0.8): An 1H NMR SFG study",
abstract = "In order to optimize hydrogen storage properties of bcc Ti–V–Cr alloys it was found that alloying with a few 4 at{\%} of Zr 7Ni 10 results in acceleration the hydrogen sorption kinetics in the composite material. The novel intergranular phase plays a role of gate for hydrogen, leading parallel to its easy decrepitate, thus enhancing fast formation of Ti–V–Cr hydrides. Nevertheless, the question on how such a composite microstructure affects hydrogen mobility in the material is still open. Here we report on the results of the studies of hydrogen self-diffusion in hydrogenated (TiCr 1.8) 1-xV x based alloys (x = 0.2, 0.4, 0.6 and 0.8) carried out using proton nuclear magnetic resonance diffusiometry in a static field gradient . For all compounds the method has proved itself as a powerful tool to probe the microstructure of the multicomponent alloys with inhomogeneous element distribution in a few micrometer scale. It has been found that addition of Zr 7Ni 10 lowers the activation energy of hydrogen motion in (TiCr 1.8) 1-xV x alloys and leads appear two different diffusion areas. They can be associated with a redistribution of elements within the intra-granular phase due to opposite substitution of Ti and Ni atoms during synthesis and blurring the boundaries between the intra-granular and inter-granular phases.",
keywords = "Hydrogen diffusion, Microstructure, NMR, Ti–V–Cr alloys",
author = "Marina Shelyapina and Anna Dost and Skryabina, {N. E.} and Privalov, {A. F.} and M. Vogel and Daniel Fruchart",
year = "2019",
month = "7",
day = "13",
doi = "10.1016/j.ijhydene.2019.06.136",
language = "English",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier",

}

Effect of Zr7Ni10 additive on hydrogen mobility in (TiCr1.8)1-xVx (x = 0.2, 0.4, 0.6, 0.8): An 1H NMR SFG study. / Shelyapina, Marina; Dost, Anna; Skryabina, N. E.; Privalov, A. F.; Vogel, M.; Fruchart, Daniel.

В: International Journal of Hydrogen Energy, 13.07.2019.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Effect of Zr7Ni10 additive on hydrogen mobility in (TiCr1.8)1-xVx (x = 0.2, 0.4, 0.6, 0.8): An 1H NMR SFG study

AU - Shelyapina, Marina

AU - Dost, Anna

AU - Skryabina, N. E.

AU - Privalov, A. F.

AU - Vogel, M.

AU - Fruchart, Daniel

PY - 2019/7/13

Y1 - 2019/7/13

N2 - In order to optimize hydrogen storage properties of bcc Ti–V–Cr alloys it was found that alloying with a few 4 at% of Zr 7Ni 10 results in acceleration the hydrogen sorption kinetics in the composite material. The novel intergranular phase plays a role of gate for hydrogen, leading parallel to its easy decrepitate, thus enhancing fast formation of Ti–V–Cr hydrides. Nevertheless, the question on how such a composite microstructure affects hydrogen mobility in the material is still open. Here we report on the results of the studies of hydrogen self-diffusion in hydrogenated (TiCr 1.8) 1-xV x based alloys (x = 0.2, 0.4, 0.6 and 0.8) carried out using proton nuclear magnetic resonance diffusiometry in a static field gradient . For all compounds the method has proved itself as a powerful tool to probe the microstructure of the multicomponent alloys with inhomogeneous element distribution in a few micrometer scale. It has been found that addition of Zr 7Ni 10 lowers the activation energy of hydrogen motion in (TiCr 1.8) 1-xV x alloys and leads appear two different diffusion areas. They can be associated with a redistribution of elements within the intra-granular phase due to opposite substitution of Ti and Ni atoms during synthesis and blurring the boundaries between the intra-granular and inter-granular phases.

AB - In order to optimize hydrogen storage properties of bcc Ti–V–Cr alloys it was found that alloying with a few 4 at% of Zr 7Ni 10 results in acceleration the hydrogen sorption kinetics in the composite material. The novel intergranular phase plays a role of gate for hydrogen, leading parallel to its easy decrepitate, thus enhancing fast formation of Ti–V–Cr hydrides. Nevertheless, the question on how such a composite microstructure affects hydrogen mobility in the material is still open. Here we report on the results of the studies of hydrogen self-diffusion in hydrogenated (TiCr 1.8) 1-xV x based alloys (x = 0.2, 0.4, 0.6 and 0.8) carried out using proton nuclear magnetic resonance diffusiometry in a static field gradient . For all compounds the method has proved itself as a powerful tool to probe the microstructure of the multicomponent alloys with inhomogeneous element distribution in a few micrometer scale. It has been found that addition of Zr 7Ni 10 lowers the activation energy of hydrogen motion in (TiCr 1.8) 1-xV x alloys and leads appear two different diffusion areas. They can be associated with a redistribution of elements within the intra-granular phase due to opposite substitution of Ti and Ni atoms during synthesis and blurring the boundaries between the intra-granular and inter-granular phases.

KW - Hydrogen diffusion

KW - Microstructure

KW - NMR

KW - Ti–V–Cr alloys

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UR - http://www.mendeley.com/research/effect-zr7ni10-additive-hydrogen-mobility-ticr181xvx-x-02-04-06-08-1h-nmr-sfg-study

U2 - 10.1016/j.ijhydene.2019.06.136

DO - 10.1016/j.ijhydene.2019.06.136

M3 - Article

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

ER -