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| 100 | 1 | _ | |a Böhm, Daniel |0 P:(DE-Juel1)180434 |b 0 |e Corresponding author |
| 245 | _ | _ | |a V(III)-Doped Nickel Oxide-Based Nanocatalysts for Electrochemical Water Splitting: Influence of Phase, Composition, and Doping on the Electrocatalytic Activity |
| 260 | _ | _ | |a Washington, DC |c 2020 |b American Chemical Society |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Doped nickel oxide-based compounds are attracting great interest as very efficient and abundant catalysts and were thoroughly investigated as battery materials in the past. However, there is still no clear understanding of the influence of dopants on the complex dynamic character of their chemically and potentially driven transformations. We have developed a synthesis procedure enabling the controlled formation of nanosized nickel hydroxide and nickel oxide polymorphs substituted with vanadium(III) [V(III)] ions and further investigated their structure–activity correlation for electrochemical water oxidation. This work therefore primarily focuses on an in-depth structural characterization of the homogeneously doped nanosized α- and β-Ni(OH)2 polymorphs. It could be shown that concentrations of 10 at. % V(III) and higher can effectively inhibit a spontaneous phase transformation known as chemical aging of the turbostratic α-phase to the more crystalline β-Ni(OH)2 phase in neutral aqueous media. The Fe-impurity-biased electrocatalytic activity determined for α-/β-Ni1–xVx(OH)2 showed only a minor increase of 10% oxygen evolution reaction (OER) activity for an 1 at. % doped nonaged sample resembling the α-phase, while a 5 at. % V(III)-doped sample chemically aged over 24 h led to a doubled OER activity versus the undoped reference which transformed into β-Ni(OH)2 over that period of time. |
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| 700 | 1 | _ | |a Beetz, Michael |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Kutz, Christopher |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Zhang, Siyuan |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Scheu, Christina |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Bein, Thomas |0 P:(DE-HGF)0 |b 5 |e Corresponding author |
| 700 | 1 | _ | |a Fattakhova-Rohlfing, Dina |0 P:(DE-Juel1)171780 |b 6 |e Corresponding author |
| 773 | _ | _ | |a 10.1021/acs.chemmater.0c02851 |g Vol. 32, no. 24, p. 10394 - 10406 |0 PERI:(DE-600)1500399-1 |n 24 |p 10394 - 10406 |t Chemistry of materials |v 32 |y 2020 |x 1520-5002 |
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| 856 | 4 | _ | |y Published on 2020-11-16. Available in OpenAccess from 2021-11-16. |u https://juser.fz-juelich.de/record/890551/files/2020_V-doped_Ni%28OH%292_acs.chemmater.0c02851_LastAuthorVersion.pdf |
| 856 | 4 | _ | |y Published on 2020-11-16. Available in OpenAccess from 2021-11-16. |u https://juser.fz-juelich.de/record/890551/files/2020_V-doped_Ni%28OH%292_acs.chemmater.0c02851_SuppInfo_Verlagsversion.pdf |
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