Nickel-carbonate nanowire array: An efficient and durable electrocatalyst for water oxidation under nearly neutral conditions
Abstract It is highly attractive but still remains a great challenge to develop an efficient electrocatalyst for oxygen evolution reaction under nearly neutral conditions. In this work, we report the transformation of $ Ni_{3} %$ S_{2} $ nanowire array on nickel foam into the amorphous nickel carbonate nanowire array on nickel foam ($ NiCO_{3} $/NF). The resulting $ NiCO_{3} $/NF shows high electrocatalytic activity towards water oxidation and affords current density of 50 mA∙$ cm^{‒2} $ at overpotential of 395 mV in 1.0 mol∙$ L^{‒1} $ $ KHCO_{3} $. Moreover, this $ NiCO_{3} $/NF is also durable with a long-term electrochemical durability of 60 h. This catalyst electrode achieves a high turnover frequency of 0.21 mol $ O_{2} $∙$ s^{‒1} $ at the overpotential of 500 mV..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
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| Enthalten in: |
Frontiers of chemical engineering in China - 12(2018), 3 vom: Sept., Seite 467-472 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ji, Yuyao [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Themen: |
/NF |
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| doi: |
10.1007/s11705-018-1717-8 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Abstract It is highly attractive but still remains a great challenge to develop an efficient electrocatalyst for oxygen evolution reaction under nearly neutral conditions. In this work, we report the transformation of $ Ni_{3} %$ S_{2} $ nanowire array on nickel foam into the amorphous nickel carbonate nanowire array on nickel foam ($ NiCO_{3} $/NF). The resulting $ NiCO_{3} $/NF shows high electrocatalytic activity towards water oxidation and affords current density of 50 mA∙$ cm^{‒2} $ at overpotential of 395 mV in 1.0 mol∙$ L^{‒1} $ $ KHCO_{3} $. Moreover, this $ NiCO_{3} $/NF is also durable with a long-term electrochemical durability of 60 h. This catalyst electrode achieves a high turnover frequency of 0.21 mol $ O_{2} $∙$ s^{‒1} $ at the overpotential of 500 mV. | ||
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| 650 | 4 | |a electocatalyst |7 (dpeaa)DE-He213 | |
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| 700 | 1 | |a Ji, Xuqiang |e verfasserin |4 aut | |
| 700 | 1 | |a Xiong, Xiaoli |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Xuping |e verfasserin |4 aut | |
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