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Nonmetal plasmonic TiN nanoparticles significantly boost photoelectrochemical performance for hydrogen evolution of CdS nanoroad array photoanode

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  • Liu, Yuhong
  • Zhu, Tianyu
  • Lin, Mingjuan
  • Liang, Yujie
  • Fu, Junli
  • Wang, Wenzhong

Abstract

We report for the first time that nonmetal plasmonic TiN nanoparticles act as hot-electron booster to remarkably enhance photocurrent and hydrogen production of CdS nanoroad arrays (NRAs) via a photoelectrochemical cell. The optimized TiN–CdS NRAs produce a bias-free photocurrent of 2.9 mA cm−2. Furthermore, the highest photoconversion efficiency of the TiN–CdS nanorod array (NRA) photoanode with optimized loading of the TiN NPs is up to 2.2%, 1.6-fold that of the pristine CdS NRA photoanode (1.4%) at 0.22 V versus RHE. Most importantly, TiN–CdS NRAs achieve a hydrogen production rate of 101.5 μmol h−1 cm−2, about 2 times higher than that of the CdS NRAs. Experimental evidences of the photoluminescence emission apparently confirm that hot-electron injection from TiN to CdS plays a crucial role for enhancing photocurrent and hydrogen production. This work demonstrates that nonmetal plasmonic TiN can be integrated into new platforms for efficient solar energy conversion.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:renene:v:180:y:2021:i:c:p:1290-1299
    DOI: 10.1016/j.renene.2021.09.050
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    References listed on IDEAS

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    1. 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.
    2. Jiangtian Li & Scott K. Cushing & Peng Zheng & Fanke Meng & Deryn Chu & Nianqiang Wu, 2013. "Plasmon-induced photonic and energy-transfer enhancement of solar water splitting by a hematite nanorod array," Nature Communications, Nature, vol. 4(1), pages 1-8, December.
    3. Kaur, Gurpreet & Divya, & Khan, Saif A. & Satsangi, Vibha R. & Dass, Sahab & Shrivastav, Rohit, 2021. "Nano-hetero-structured thin films, ZnO/Ag-(α)Fe2O3, with n/n junction, as efficient photoanode for renewable hydrogen generation via photoelectrochemical water splitting," Renewable Energy, Elsevier, vol. 164(C), pages 156-170.
    4. 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.
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    1. Belessiotis, George V. & Kontos, Athanassios G., 2022. "Plasmonic silver (Ag)-based photocatalysts for H2 production and CO2 conversion: Review, analysis and perspectives," Renewable Energy, Elsevier, vol. 195(C), pages 497-515.

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