Synthesis of porous LaNiO thin films by chemical solution deposition for enhanced oxygen evolution reaction

Herein, a facile chemical solution deposition (CSD) strategy is adopted to synthesize LaNiO 3 (LNO) thin films with an obvious porous structure (P-LNO). It is demonstrated that the porous structure can greatly promote the OER performance of LNO, requiring an overpotential of 367 mV to achieve 10 mA...

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Published in:Dalton transactions : an international journal of inorganic chemistry 2023-07, Vol.52 (29), p.993-997
Main Authors: Zhu, Min, Sheng, Zongqiang, Gao, Juan, Li, Yang, Zhang, Chao, Zhu, Xuebin
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Summary:Herein, a facile chemical solution deposition (CSD) strategy is adopted to synthesize LaNiO 3 (LNO) thin films with an obvious porous structure (P-LNO). It is demonstrated that the porous structure can greatly promote the OER performance of LNO, requiring an overpotential of 367 mV to achieve 10 mA cm −2 , which is much lower than that of a normal LNO thin film (478 mV). As revealed by the following experimental results, the presence of the porous structure offers more exposed active sites and promotes electron transfer between catalysts and electrolyte, giving rise to an enhanced OER performance of the P-LNO film. Porous LaNiO 3 thin films, which are prepared by a facile chemical solution deposition method, exhibit an enhanced OER activity.
ISSN:1477-9226
1477-9234
DOI:10.1039/d3dt01645e