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Enhanced photoelectrochemical performance of plasmonic Ag nanoparticles grafted ternary Ag/PaNi/NaNbO3 nanocomposite photoanode for photoelectrochemical water splitting

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  • Kumar, Dheeraj
  • Sharma, Surbhi
  • Khare, Neeraj

Abstract

In this work, we have successfully synthesized silver nanoparticles (Ag-NPs) decorated binary PaNi/NBO nanocomposite by facile chemisorption route and demonstrated enhanced photoelectrochemical (PEC) water splitting activity. The ternary Ag/PaNi/NBO nanocomposite photoanode exhibits ∼5 fold higher current density than pristine NaNbO3 nanofibers (NBO-NFs). The ternary Ag/PaNi/NBO photoanode exhibits a current density of 5.93 mA/cm2 at 0.9 V with respect to Ag/AgCl, whereas the pristine NBO-NFs photoanode exhibits only 0.85 mA/cm2 at 0.9 V. The improved performance is correlated to the high surface area, formation of the type-II heterojunction among PaNi and NBO-NFs and the introduction of the plasmonic behaviour of Ag-NPs as it expands the absorption of the visible part of the solar spectrum, which together decreases the recombination of charges with strong redox capability. Furthermore, the ternary Ag/PaNi/NBO photoanode showed lower charge transfer resistance (Rct) in the EIS measurements and improved incident photon to current efficiency (IPCE) of ∼31.3% which is ∼23% higher to the IPCE of bare NBO-NFs photoanode. Thus, these results suggest that the ternary Ag/PaNi/NBO nanocomposite is a promising material for PEC activity and wide practical applications.

Suggested Citation

  • Kumar, Dheeraj & Sharma, Surbhi & Khare, Neeraj, 2020. "Enhanced photoelectrochemical performance of plasmonic Ag nanoparticles grafted ternary Ag/PaNi/NaNbO3 nanocomposite photoanode for photoelectrochemical water splitting," Renewable Energy, Elsevier, vol. 156(C), pages 173-182.
    • Handle: RePEc:eee:renene:v:156:y:2020:i:c:p:173-182
    DOI: 10.1016/j.renene.2020.04.075
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    References listed on IDEAS

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    1. Xu, Shenming & Jiang, Jiangang & Ren, Wenyi & Wang, He & Zhang, Rui & Xie, Yingge & Chen, Yubin, 2020. "Construction of ZnO/CdS three-dimensional hierarchical photoelectrode for improved photoelectrochemical performance," Renewable Energy, Elsevier, vol. 153(C), pages 241-248.
    2. Boukhemikhem, Z. & Brahimi, R. & Rekhila, G. & Fortas, G. & Boudjellal, L. & Trari, M., 2020. "The photocatalytic hydrogen formation and NO2− oxidation on the hetero-junction Ag/NiFe2O4 prepared by chemical route," Renewable Energy, Elsevier, vol. 145(C), pages 2615-2620.
    3. Bai, Shouli & Han, Jingyi & Zhao, Yingying & Chu, Haomiao & Wei, Shiqiang & Sun, Jianhua & Sun, Lixia & Luo, Ruixian & Li, Dianqing & Chen, Aifan, 2020. "rGO decorated BiVO4/Cu2O n-n heterojunction photoanode for photoelectrochemical water splitting," Renewable Energy, Elsevier, vol. 148(C), pages 380-387.
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    Cited by:

    1. Liu, Yuhong & Zhu, Tianyu & Lin, Mingjuan & Liang, Yujie & Fu, Junli & Wang, Wenzhong, 2021. "Nonmetal plasmonic TiN nanoparticles significantly boost photoelectrochemical performance for hydrogen evolution of CdS nanoroad array photoanode," Renewable Energy, Elsevier, vol. 180(C), pages 1290-1299.
    2. Vinoth, S. & Pandikumar, A., 2021. "Ni integrated S-gC3N4/BiOBr based Type-II heterojunction as a durable catalyst for photoelectrochemical water splitting," Renewable Energy, Elsevier, vol. 173(C), pages 507-519.
    3. Kumar, Dheeraj & Sharma, Surbhi & Khare, Neeraj, 2021. "Electric polarization tune enhanced photoelectrochemical performance of visible light active ferroelectric Bi0.5Na0.5TiO3 nanostructure photoanode," Renewable Energy, Elsevier, vol. 180(C), pages 186-192.
    4. Kumar, Dheeraj & Sharma, Surbhi & Khare, Neeraj, 2021. "Piezo-phototronic and plasmonic effect coupled Ag-NaNbO3 nanocomposite for enhanced photocatalytic and photoelectrochemical water splitting activity," Renewable Energy, Elsevier, vol. 163(C), pages 1569-1579.
    5. Zeng, Jia & Xuan, Yimin, 2022. "Direct solar-thermal conversion features of flowing photonic nanofluids," Renewable Energy, Elsevier, vol. 188(C), pages 588-602.

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    Keywords

    PaNi; NaNbO3; Silver nanoparticle; Ag/PaNi/NBO; Water splitting;
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