Accelerating Anode Reaction with Electro-oxidation of Alcohols over Ru Nanoparticles to Reduce the Potential for Water Splitting

Author(s):  
Pei Zhu ◽  
Yongli Shen ◽  
Linxiu Dai ◽  
Qiuyuan Yu ◽  
Zhi-Ming Zhang ◽  
...  
2021 ◽  
Author(s):  
Yuhou Pei ◽  
Jiong Cheng ◽  
Heng Zhong ◽  
Zhenfeng Pi ◽  
Zhao Yu ◽  
...  

Replacing the sluggish oxygen evolution reaction (OER) by sulfide electro-oxidation reaction (SOR) could be a promising way to decrease the energy consumption for hydrogen evolution reaction (HER) and to treat...


2021 ◽  
Vol 9 (35) ◽  
pp. 11855-11861
Author(s):  
Zhiyong Fang ◽  
Peili Zhang ◽  
Mei Wang ◽  
Fusheng Li ◽  
Xiujuan Wu ◽  
...  

1999 ◽  
Vol 103 (26) ◽  
pp. 5505-5511 ◽  
Author(s):  
Pablo A. Mandelbaum ◽  
Alberto E. Regazzoni ◽  
Miguel A. Blesa ◽  
Sara A. Bilmes

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Dae-Soo Yang ◽  
Kwang-Sik Sim ◽  
Hai-Doo Kwen ◽  
Seong-Ho Choi

Pt-Ru catalysts based on functional polymer-grafted MWNT (Pt-Ru@FP-MWNT) were prepared by radiolytic deposition of Pt-Ru nanoparticles on functional polymer-grafted multiwalled carbon nanotube (FP-MWNT). Three different types of functional polymers, poly(acrylic acid) (PAAc), poly(methacrylic acid) (PMAc), and poly(vinylphenyl boronic acid) (PVPBAc), were grafted on the MWNT surface by radiation-induced graft polymerization (RIGP). Then, Pt-Ru nanoparticles were deposited onto the FP-MWNT supports by the reduction of metal ions usingγ-irradiation to obtain Pt-Ru@FP-MWNT catalysts. The Pt-Ru@FP-MWNT catalysts were then characterized by XRD, XPS, TEM ,and elemental analysis. The catalytic efficiency of Pt-Ru@FP-MWNT catalyst was examined for CO stripping and MeOH oxidation for use in a direct methanol fuel cell (DMFC). The Pt-Ru@PVPBAc-MWNT catalyst shows enhanced activity for electro-oxidation of CO and MeOH oxidation over that of the commercial E-TEK catalyst.


2020 ◽  
Vol 21 (1) ◽  
pp. 573-583
Author(s):  
Rajesh Kodiyath ◽  
Gubbala V. Ramesh ◽  
Maidhily Manikandan ◽  
Shigenori Ueda ◽  
Takeshi Fujita ◽  
...  

2015 ◽  
Vol 12 (4) ◽  
Author(s):  
Long-long Wang ◽  
Hong-min Mao ◽  
Xiao-jin Zhou ◽  
Qun-jie Xu ◽  
Qiao-xia Li

Well-dispersed and low Pt content Pt–Ru/C nanoparticles were prepared by a developed impregnating reduction method with sodium citrate as stabilizer. The as-prepared Pt–Ru/C catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and energy dispersive X-ray (EDX) analysis. TEM showed that the Pt–Ru particles were quite uniformly distributed on the surface of the carbon with an average particle size of 3.5–4.5 nm. The effect of pH values on methanol electro-oxidation reaction was examined by cyclic voltammetry (CV) and chronoamperometry (CA). Pre-adsorbed CO monolayer stripping was used to evaluate the antipoisoning ability. The results showed that Pt–Ru/C (pH = 8) catalyst had the highest catalytic activity and stability toward the oxidation of methanol. Finally, comparing Pt–Ru/C (Pt–Ru 20 wt.%, Pt/Ru = 1:1) catalysts with Pt/C (Pt 20 wt.%), the onset potential was 200 mV lower and electrochemical active area was much bigger.


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