Scalable and inexpensive strategy to fabricate CuO/ZnO nanowire heterojunction for efficient photoinduced water splitting
Source abstract
Abstract
In this paper, highly efficient and stable CuO/ZnO nanowire (CuO/ZnO-nw) based photocathode was fabricated using a facile and scalable technique for application in photoelectrochemical water splitting. Electro-deposition of Cu film on FTO glass followed by a subsequent chemical oxidation and dip-coating methods was implemented to fabricate a p-type CuO/ZnO-nw heterostructure photoelectrode. The as-prepared CuO/ZnO-nw heterostructure consisted of a copper (II) oxide (CuO) nanowire covered by zinc oxide (ZnO) nanoparticle film serving as both protecting and charge transfer layer. We optimized the coating concentration and the number of layers to achieve enhanced p-type CuO/ZnO-nw photoelectrode material. The best photocathode material exhibited a maximum current of − 8.1 mAcm−2 at 0 versus RHE. The obtained photocurrent density was outstanding compared to other reported CuO-based heterostructure photoelectrodes. The enhancement in photocurrent performance originated from the combined effect of charge separation and the light absorption properties of the heterostructure photoelectrode. The result demonstrated a simple and scalable approach for the fabrication of enhanced CuO nanowire-based photoelectrode for the production of H2 using solar light.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: ZnO doping and properties · Copper-based nanomaterials and applications · Electronic and Structural Properties of Oxides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
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1. Anthony S, Simone A, Lu G, Marcel AV et al (2015) Efficient water reduction with gallium phosphide nanowires. Nat Commun 6:782410.1038/ncomms9147 ↗
2. Kibria MG, Chowdhury FA, Zhao S et al (2015) Visible light-driven efficient overall water splitting using p-type metal-nitride nanowire arrays. Nat Commun 6:679710.1038/ncomms7797 ↗
3. Takashi H, Jun K, Kazunari D (2014) Recent advances in semiconductors for photocatalytic and photoelectrochemical water splitting. Chem Soc Rev 43:7520–753510.1039/C3CS60378D ↗
4. Ismail AA, Bahnemann DW (2014) Photochemical splitting of water for hydrogen production by photocatalysis: a review. Solar Energy Mater Solar Cells 128:85–10110.1016/j.solmat.2014.04.037 ↗
5. Hansen BJ, Kouklin N, Lu G, Lin IK, Chen J, Zhang X (2010) Transport, analyte detection, and opto-electronic response of p-type CuO nanowires. J Phys Chem C 114:2440–244710.1021/jp908850j ↗
6. Zhang Z, Wang P (2012) Highly stable copper oxide composite as an effective photocathode for water splitting via a facile electrochemical synthesis strategy. J Mater Chem 22:2456–246510.1039/C1JM14478B ↗
7. Kargar A, Jing Y, Kim SJ, Riley CT, Pan X, Wang D (2013) ZnO/CuO heterojunction branched nanowires for photoelectrochemical hydrogen generation. ACS Nano 7:11112–1112010.1021/nn404838n ↗
8. Shaislamov U, Krishnamoorthy K, Kim SJ et al (2016) Highly stable hierarchical p-CuO/ZnO nanorod/nanobranch photoelectrode for efficient solar energy conversion. Int J Hydrog Energy 41:2253–226210.1016/j.ijhydene.2015.10.146 ↗
9. Huang Q, Feng K, Liu H, Li Q, Xiao X (2013) Highly aligned Cu2O/CuO/TiO2 core/shell nanowire arrays as photocathodes for water photoelectrolysis. J Mater Chem A 1:2418–242510.1039/C2TA00918H ↗
10. Martinez-Garcia A, Vendra VK, Sunkara S, Haldankar P, Jasinski J, Sunkara MK (2013) A tungsten oxide-coated copper oxide nanowire arrays for enhanced activity and durability with photoelectrochemical water splitting. J Mater Chem 1:15235–1524110.1039/c3ta13912c ↗
11. Withana SAI, Jaramillo TF, Baeck SH, McFarland EW (2003) Cu2O/TiO2 heterojunction thin film cathode for photoelectrocatalysis. Sol Energy Mater Sol Cells 77:229–23710.1016/S0927-0248(02)00343-4 ↗
12. Paracchino A, Mathews N, Hisatomi T, Stefik M, Tilley SD, Gratzel M (2012) Highly active oxide photocathode for photoelectrochemical water reduction. Energy Environ Sci 5:8673–868110.1039/c2ee22063f ↗
13. Kang Z, Yan X, Wang Y et al (2015) Electronic structure engineering of Cu2O film/ZnO nanorods array all oxide p-n heterostructure for enhanced photoelectrochemical property and self-powered biosensing application. Sci Rep 5:788210.1038/srep07882 ↗
14. Walter MG, Warren EL, McKone JR et al (2010) Solar water splitting cells. Chem Rev 110:6446–647310.1021/cr1002326 ↗
15. Dai P, Xie J, Mayer MT, Yang X, Zhan J, Wang D (2013) Solar hydrogen generation by silicon nanowires modified with platinum nanoparticle catalysts by atomic layer deposition. Angew Chem Int Ed 52:11119–1112310.1002/anie.201303813 ↗
16. Luo J, Steier L, Son M-K, Schreier M, Mayer MT, Grätzel M (2016) Cu2O nanowire photocathodes for efficient and durable solar water splitting. Nano Lett 16:848–857
17. Tsege EL, Vu Thi HH, Atabaev ST, Kim H-K, Hwang Y-H (2016) Effect of Er3 + and Yb3 + Co-doping on the performance of a ZnO-based DSSC. J Korean Phys Soc 68:1381–138910.3938/jkps.68.1381 ↗
18. Özgür Ü, Alivov YI, Liu C, Teke A, Reshchikov MA, Doğan S, Avrutin V, Cho S-J, Morkoç H (2005) A comprehensive review of ZnO materials and devices. J Appl Phys 98:041301–04130310.1063/1.1992666 ↗
19. Paracchino A, Laporte V, Sivula K, Grätzel M, Thimsen E (2011) Highly active oxide photocathode for photoelectrochemical water reduction. Nat Mater 10:456–46110.1038/nmat3017 ↗
20. Zhang Z, Dua R, Zhang L, Zhu H, Zhang H, Wang P (2013) Carbon-layer-protected cuprous oxide nanowire arrays for efficient water reduction. ACS Nano 7:1709–171710.1021/nn3057092 ↗
21. Ho-Kimura S, Moniz SJA, Tang J, Parkin IP (2015) A method for synthesis of renewable Cu2O junction composite electrodes and their photoelectrochemical properties. Chem Eng 3:710–717
22. Guo X, Diao P, Xu D et al (2014) CuO/Pd composite photocathodes for photoelectrochemical hydrogen evolution reaction. Int J Hydrog Energy 39:7686–769610.1016/j.ijhydene.2014.03.084 ↗
23. Li D, Hu J, Wu R, Lu JG (2010) Conductometric chemical sensor based on individual CuO nanowire. Nanotechnology 21:485502–48550610.1088/0957-4484/21/48/485502 ↗
24. Wu D, Zhang Q, Tao M (2006) LSDA + U study of cupric oxide: electronic structure and native point defects. Phys Rev B 73:23520610.1103/PhysRevB.73.235206 ↗
25. Tsege EL, Atabaev ST, Hossain MA, Lee D, Kim H-K, Hwang Y-H (2016) Cu-doped flower-like hematite nanostructures for efficient water splitting applications. J Phys Chem Solids 98:283–28910.1016/j.jpcs.2016.07.014 ↗
26. Sunkaraa S, Vendraa VK, Kim JH, Druffel T, Sunkaraa MK (2013) Scalable synthesis and photoelectrochemical properties of copper oxide nanowire arrays and films. Catal Today 199:27–3510.1016/j.cattod.2012.03.014 ↗
27. Janotti A, Van de Walle CG (2009) Fundamentals of zinc oxide as a semiconductor. Rep Prog Phys 72:12650110.1088/0034-4885/72/12/126501 ↗
28. Maragliano C, Lilliu S, Dahlem MS et al (2014) Quantifying charge carrier concentration in ZnO thin films by scanning kelvin probe microscopy. Sci Rep 4:420310.1038/srep04203 ↗