Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Study on the RuO2 Electrode Catalyst Prepared by Colloidal Method

콜로이드법으로 합성한 RuO2 전극촉매의 연구

  • PARK, JIN-NAM (School of New & Renewable Energy, Kyungil University)
  • 박진남 (경일대학교 신재생에너지학부)
  • Received : 2019.05.29
  • Accepted : 2019.06.30
  • Published : 2019.06.30
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Abstract

$RuO_2$, $PtO_2$, and various $(Ru,Pt)O_2$ colloidal solution were prepared using modified Watanabe method. Electrodes were manufactured by dipping of Ni mesh into the colloidal solution. Manufactured electrodes were characterized by XRD, SEM, and EDS. $(Ru,Pt)O_2$ electrodes showed $RuO_2$ crystal structure and high roughness. The hydrogen evolution reaction (HER) activities were evaluated by Linear Sweep Voltammetry. 1Ru2Pt electrode showed similar activity with commercial electrode, HER potentials are -0.9 V for both.

Keywords

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Fig. 1. Typical Chlor-alkali process1)

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Fig. 2. Preparation of PtO2 colloid

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Fig. 3. Preparation of (Ru,Pt)O2 colloid

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Fig. 4. Preparation of RuO2 colloid

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Fig. 5. XRD spectra of Ru, 2Ru1Pt, 1Ru1Pt, 1Ru2Pt, and Pt

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Fig. 6. SEM images of Ru (a, b), 2Ru1Pt (c, d), 1Ru1Pt (e, f), 1Ru2Pt (g, h), and Pt (I, j) (left: ×350, right: ×2,300)

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Fig. 8. Polarization curves of Ru, 2Ru1Pt, 1Ru1Pt, 1Ru2Pt, and Pt

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Fig. 7. Polarization curves of Pt mesh, Ni mesh, and commer-cial electrode

Table 1. Notation of electrode

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Table 2. EDS Results of Ru, 2Ru1Pt, 1Ru1Pt, 1Ru2Pt, and Pt

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References

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