A scalable Al–Ni alloy powder catalyst prepared by metallurgical microstructure control

2020 ◽  
Vol 8 (22) ◽  
pp. 11133-11140 ◽  
Author(s):  
Sang Won Im ◽  
Hehsang Ahn ◽  
Da Hye Seo ◽  
Sunghak Park ◽  
Seungwoo Choi ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Alloy Powder ◽  
Pt Catalysts ◽  
Large Area ◽  
Facile Synthesis ◽  
Microstructure Control ◽  
Ni Alloys ◽  
Ni Alloy ◽  
Metallurgical Microstructure

Metallurgical microstructure control of Al–Ni alloys enabled scalable and facile synthesis of large-area electrodes for alkaline hydrogen evolution catalysts comparable to conventional Pt catalysts.

Facile synthesis of large-area CeO 2 /ZnO nanotube arrays for enhanced photocatalytic hydrogen evolution

2014 ◽  
Vol 247 ◽  
pp. 545-550 ◽  
Author(s):  
Cheng-hui Zeng ◽  
Shilei Xie ◽  
Minghao Yu ◽  
Yangyi Yang ◽  
Xihong Lu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Nanotube Arrays ◽  
Large Area ◽  
Facile Synthesis ◽  
Photocatalytic Hydrogen Evolution ◽  
Zno Nanotube

Facile Synthesis of SnO2 Nanostructures for Enhanced Electrochemical Hydrogen Evolution Reaction

2021 ◽  
pp. 158597
Author(s):  
Yongming Zhang ◽  
Jing Zou ◽  
Zemin He ◽  
Yuzhen Zhao ◽  
Xiaoxi Kang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Sno2 Nanostructures ◽  
Facile Synthesis

Co-Ni alloy nanoparticles supported by carbon nanofibers for hydrogen evolution reaction

2021 ◽  
Vol 868 ◽  
pp. 159172
Author(s):  
Jibiao Guan ◽  
Yuanjian Liu ◽  
Yini Fang ◽  
Xiangheng Du ◽  
Yaqin Fu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Carbon Nanofibers ◽  
Hydrogen Evolution Reaction ◽  
Alloy Nanoparticles ◽  
Ni Alloy

scholarly journals Nuclear Gamma Resonance Study of the Ir —Fe and Ir —Ni Alloy Systems

1971 ◽  
Vol 26 (3) ◽  
pp. 343-352 ◽  
Author(s):  
R.L. Mössbauer ◽  
M. Lengsfeld ◽  
W. Von Lieres ◽  
W. Potzel ◽  
T. Teschner ◽  
...  
Keyword(s):  
Composition Range ◽  
Magnetic Hyperfine Field ◽  
Band Model ◽  
Hyperfine Fields ◽  
Ni Alloys ◽  
Dilute Alloys ◽  
Ni Alloy ◽  
Bulk Magnetization ◽  
Bcc Phase ◽  
Alloy Systems

Abstract The Ir-Fe and Ir-Ni alloy systems were studied over the whole composition range by means of the nuclear resonance absorption of the 73 keV y-rays of 193Jr and of the 14.4 keV y-rays of 57Fe. The magnetic hyperfine field at the Ir-nuclei in Ir-Ni alloys decreases approximately linearly with the Ir concentration from - 460 kOe at 4.2 K in very dilute alloys to zero at about 20 at.-% Ir. This behaviour is paralleled by the decrease of the magnetic moment per Ni atom as determined from bulk magnetization measurements. The hyperfine fields at both Ir and Fe were measured for the ferromagnetic bcc phase of the Ir-Fe system. They turned out to be virtually independent of concentration with values of about -1400 kOe and - 330 kOe, respectively. Linewidths increasing with the Ir concentration indicate a distribution of hyperfine fields. The fee phase of the Ir-Fe system has been found to be paramagnetic at 4.2 K throughout the range of its existence. The dependence of the hyperfine fields on concentration is discussed in terms of a rigid 3d-band model combined with local shielding. A discussion of the concentration dependence of the 193Ir and 57Fe isomer shifts has to take into account lattice expansion as well as band repopulation effects.

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