<P>A high activity of a two-dimensional (2D) copper oxide (CuO) electrocatalyst for the oxygen evolution reaction (OER) is presented. The CuO electrode self-assembles on a stainless steel substrate<I>via</I>chemical bath deposition a...
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https://www.riss.kr/link?id=A107648025
2017
-
SCOPUS,SCIE
학술저널
12747-12751(5쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>A high activity of a two-dimensional (2D) copper oxide (CuO) electrocatalyst for the oxygen evolution reaction (OER) is presented. The CuO electrode self-assembles on a stainless steel substrate<I>via</I>chemical bath deposition a...
<P>A high activity of a two-dimensional (2D) copper oxide (CuO) electrocatalyst for the oxygen evolution reaction (OER) is presented. The CuO electrode self-assembles on a stainless steel substrate<I>via</I>chemical bath deposition at 80 °C in a mixed solution of CuSO4and NH4OH, followed by air annealing treatment, and shows a 2D nanosheet bundle-type morphology. The OER performance is studied in a 1 M KOH solution. The OER starts to occur at about 1.48 V<I>versus</I>the RHE (<I>η</I>= 250 mV) with a Tafel slope of 59 mV dec<SUP>−1</SUP>in a 1 M KOH solution. The overpotential (<I>η</I>) of 350 mV at 10 mA cm<SUP>−2</SUP>is among the lowest compared with other copper-based materials. The catalyst can deliver a stable current density of >10 mA cm<SUP>−2</SUP>for more than 10 hours. This superior OER activity is due to its adequately exposed OER-favorable 2D morphology and the optimized electronic properties resulting from the thermal treatment.</P>