scholarly journals PtRu/C Electrocatalysts Prepared Using Gamma and Electron Beam Irradiation for Methanol Electrooxidation

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Dionisio F. Silva ◽  
Adriana N. Geraldes ◽  
Eddy S. Pino ◽  
Almir Oliveira Neto ◽  
Marcelo Linardi ◽  
...  

PtRu/C electrocatalysts (carbon-supported PtRu nanoparticles) were prepared in a single step submitting water/2-propanol mixtures containing Pt(IV) and Ru(III) ions and the carbon support to gamma and electron beam irradiation. The electrocatalysts were characterized by energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD), transmission electron microscopy (TEM), and cyclic voltammetry and tested for methanol electrooxidation. PtRu/C electrocatalyst can be prepared in few minutes using high dose rate electron beam irradiation while using low dose rate gamma irradiation some hours were necessary to prepare it. The obtained materials showed the face-centered cubic (fcc) structure of Pt and Pt alloys with average nanoparticle sizes of around 3 nm. The material prepared using electron beam irradiation was more active for methanol electrooxidation than the material prepared using gamma irradiation.

Fuel ◽  
2020 ◽  
Vol 274 ◽  
pp. 117695 ◽  
Author(s):  
Kunpeng Wang ◽  
Harika Rao Damarla ◽  
Ilan Clifford Berman ◽  
David Staack

2021 ◽  
Vol 640 (3) ◽  
pp. 032006
Author(s):  
U A Bliznyuk ◽  
P Yu Borchegovskaya ◽  
A P Chernyaev ◽  
V S Ipatova ◽  
V A Leontiev ◽  
...  

2018 ◽  
Vol 143 ◽  
pp. 8-13
Author(s):  
Huaili Qin ◽  
Guang Yang ◽  
Shan Kuang ◽  
Qiang Wang ◽  
Jingjing Liu ◽  
...  

Author(s):  
M. Yu. Tashmetov ◽  
I. I. Yuldashova ◽  
N. B. Ismatov

Effect of 2 MeV electron beam at the current density 0.09 nA/cm2 on surface structure, nanocrystallite size of (ZrTi)CN nanocomposite coating on steel was investigated at Scanning Electron and Atomic Force microscopes, and also X-ray diffractometer. Using the Rietveld method, two structure phases were indentified in the pristine samples: (ZrTi)(CN)-cubic (space group Fm-3m) and TiC — trigonal (sp.gr.R-3m). Electron beam irradiation to the fluency of [Formula: see text] electron/cm2 resulted in the phase transition of TiC from trigonal (sp.gr.R-3m) to cubic structure (sp.gr.Fm-3m). Besides, nanocrystallite size and shape have changed after the fluency [Formula: see text] electron/cm2. The lattice parameters have increased up to [Formula: see text] electron/cm2 fluence and the nanorcrystallite size of nanocomposite was enlarged 26%, which was attributed to generation of defects.


2020 ◽  
Vol 323 (2) ◽  
pp. 975-982 ◽  
Author(s):  
Yongsheng Ling ◽  
Song Hu ◽  
Ting Chen ◽  
Xionghui Fei ◽  
Guang Wang ◽  
...  

2002 ◽  
Vol 178 (6) ◽  
pp. 330-335 ◽  
Author(s):  
Mohammad Maarouf ◽  
Ursula Schleicher ◽  
Axel Schmachtenberg ◽  
Jürgen Ammon

LWT ◽  
1999 ◽  
Vol 32 (6) ◽  
pp. 372-376 ◽  
Author(s):  
S. Van Calenberg ◽  
O. Van Cleemput ◽  
W. Mondelaers ◽  
A. Huyghebaert

LWT ◽  
1998 ◽  
Vol 31 (3) ◽  
pp. 252-258 ◽  
Author(s):  
Sabine Van Calenberg ◽  
Gauthier Vanhaelewyn ◽  
Oswald Van Cleemput ◽  
Freddy Callens ◽  
Wim Mondelaers ◽  
...  

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