ACS Publications. Most Trusted. Most Cited. Most Read
My Activity
CONTENT TYPES

Nano-Photoelectrochemical Cell Arrays with Spatially Isolated Oxidation and Reduction Channels

View Author Information
Department of Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213-3890, United States
Cite this: ACS Nano 2017, 11, 2, 2150–2159
Publication Date (Web):January 17, 2017
https://doi.org/10.1021/acsnano.6b08387
Copyright © 2017 American Chemical Society

    Article Views

    1691

    Altmetric

    -

    Citations

    LEARN ABOUT THESE METRICS
    Other access options
    Supporting Info (1)»

    Abstract

    Abstract Image

    Photoelectrochemical conversion of solar energy is explored for many diverse applications but suffers from poor efficiencies due to limited solar absorption, inadequate charge carrier separation, redox half-reactions occurring in close proximity, and/or long ion diffusion lengths. We have taken a drastically different approach to the design of photoelectrochemical cells (PECs) to spatially isolate reaction sites at the nanoscale to different materials and flow channels, suppressing carrier recombination and back-reaction of intermediates while shortening ion diffusion paths and, importantly, avoiding mixed product generation. We developed massively parallel nano-PECs composed of an array of open-ended carbon nanotubes (CNTs) with photoanodic reactions occurring on the outer walls, uniformly coated with titanium dioxide (TiO2), and photocathodic reactions occurring on the inner walls, decorated with platinum (Pt). We verified the redox reaction isolation by demonstrating selective photodeposition of manganese oxide on the outside and silver on the inside of the TiO2/CNT/Pt nanotubes. Further, the nano-PECs exhibit improved solar absorption and efficient charge transfer of photogenerated carriers to their respective redox sites, leading to a 1.8% photon-to-current conversion efficiency (a current density of 4.2 mA/cm2) under white-light irradiation. The design principles demonstrated can be readily adapted to myriads of photocatalysts for cost-effective solar utilization.

    Read this article

    To access this article, please review the available access options below.

    Get instant access

    Purchase Access

    Read this article for 48 hours. Check out below using your ACS ID or as a guest.

    Recommended

    Access through Your Institution

    You may have access to this article through your institution.

    Your institution does not have access to this content. You can change your affiliated institution below.

    Supporting Information

    ARTICLE SECTIONS
    Jump To

    The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acsnano.6b08387.

    • Figures of (1) TGA of TiO2/CNT membrane, (2) high-resolution TEM image of TiO2/CNT/Pt membranes, (3) adsorption isotherms and pore characteristics of TiO2/CNT membranes, (4) adsorption–desorption equilibration time of methylene blue dye on TiO2/CNT/Pt and TiO2/CNT membranes in the dark, (5) dye absorption spectra at various reaction time intervals, (6) photocatalytic methylene blue dye degradation of TiO2/CNT and TiO2/CNT/Pt membrane under white-light, (7) SEM image of TiO2/CNT/Pt membrane after being filled with PVA polymer, (8) J–V curves of TiO2/CNT/Pt membrane on the RHE scale, (9) ΔJ–V curves on an RHE scale for TiO2/CNT membranes under white- and visible-light, (10) ΔJ–V curves on an RHE scale by TiO2, TiO2/Pt, CNT, CNT/Pt membranes under white- and visible-light, (11) TEM images of MnOx flakes on the outer wall surface and Ag nanoparticles on the inside of TiO2/CNT/Pt nanotubes, and (12) conventional-resolution TEM images of photodeposited Ag nanoparticles on the interior CNT wall of TiO2/CNT/Pt membranes (PDF)

    Terms & Conditions

    Most electronic Supporting Information files are available without a subscription to ACS Web Editions. Such files may be downloaded by article for research use (if there is a public use license linked to the relevant article, that license may permit other uses). Permission may be obtained from ACS for other uses through requests via the RightsLink permission system: http://pubs.acs.org/page/copyright/permissions.html.

    Cited By

    This article is cited by 17 publications.

    1. Zhongchuan Wang, Luyao Zhang, Pengfei Fang, Lu Wang, Weiwei Wang. Study on Simultaneous Removal of Dye and Heavy Metal Ions by NiAl-Layered Double Hydroxide Films. ACS Omega 2020, 5 (34) , 21805-21814. https://doi.org/10.1021/acsomega.0c02875
    2. Hui Zhang, Weimin Wang, Huanxin Zhao, Lixia Zhao, Li-Yong Gan, Liang-Hong Guo. Facet-Dependent Interfacial Charge Transfer in Fe(III)-Grafted TiO2 Nanostructures Activated by Visible Light. ACS Catalysis 2018, 8 (10) , 9399-9407. https://doi.org/10.1021/acscatal.8b02075
    3. Eran Edri, Shaul Aloni, and Heinz Frei . Fabrication of Core–Shell Nanotube Array for Artificial Photosynthesis Featuring an Ultrathin Composite Separation Membrane. ACS Nano 2018, 12 (1) , 533-541. https://doi.org/10.1021/acsnano.7b07125
    4. Zongyu Wang, Siyuan Liu, Jianan Zhang, Jiajun Yan, Yepin Zhao, Clare Mahoney, Rachel Ferebee, Danli Luo, Joanna Pietrasik, Michael R. Bockstaller, and Krzysztof Matyjaszewski . Photocatalytic Active Mesoporous Carbon/ZnO Hybrid Materials from Block Copolymer Tethered ZnO Nanocrystals. Langmuir 2017, 33 (43) , 12276-12284. https://doi.org/10.1021/acs.langmuir.7b02492
    5. Heinz Frei. Ultrathin electron and proton-conducting membranes for nanoscale integrated artificial photosystems. Sustainable Energy & Fuels 2023, 7 (14) , 3213-3231. https://doi.org/10.1039/D3SE00499F
    6. Won Jun Jo, Hongna Zhang, Georgios Katsoukis, Heinz Frei. Ultrathin Silica Layers as Separation Membranes for Artificial Photosynthesis. 2022, 298-341. https://doi.org/10.1039/9781839163708-00298
    7. Aufandra Cakra Wardhana, Sou Yasuhara, Min-Wen Yu, Akira Yamaguchi, Tadaaki Nagao, Satoshi Ishii, Masahiro Miyauchi. Direct imaging of visible-light-induced one-step charge separation at the chromium( iii ) oxide–strontium titanate interface. Journal of Materials Chemistry A 2022, 10 (2) , 752-761. https://doi.org/10.1039/D1TA08950A
    8. Shan Huang, Xianfeng Du, Mingbo Ma, Lilong Xiong. Recent progress in the synthesis and applications of vertically aligned carbon nanotube materials. Nanotechnology Reviews 2021, 10 (1) , 1592-1623. https://doi.org/10.1515/ntrev-2021-0102
    9. Zhongrui Yu, Haobo Liu, Mingyuan Zhu, Ying Li, Wenxian Li. Interfacial Charge Transport in 1D TiO 2 Based Photoelectrodes for Photoelectrochemical Water Splitting. Small 2021, 17 (9) https://doi.org/10.1002/smll.201903378
    10. V. Vinesh, A. R. Mahammed Shaheer, B. Neppolian. Nanostructuring of Hybrid Materials Using Wrapping Approach to Enhance the Efficiency of Visible Light-Responsive Semiconductor Photocatalyst. 2021, 217-232. https://doi.org/10.1007/978-3-030-72076-6_8
    11. Xin-Zheng Yue, Chuan-Qi Li, Zhong-Yi Liu, Sha-Sha Yi, De-Liang Chen, Feng Wang, Shuai-Hui Li. Steering charge kinetics in W2C@C/TiO2 heterojunction architecture: Efficient solar-light-driven hydrogen generation. Applied Catalysis B: Environmental 2019, 255 , 117760. https://doi.org/10.1016/j.apcatb.2019.117760
    12. Ajay S. Pisat, Paul A. Salvador, Gregory S. Rohrer. The Facet Structure and Photochemical Reactivity of Arbitrarily Oriented Strontium Titanate Surfaces. Advanced Materials Interfaces 2019, 6 (16) https://doi.org/10.1002/admi.201900731
    13. Thuraya Al-Fahdi, Faisal Al Marzouqi, Alex T. Kuvarega, Bhekie B. Mamba, Salma M.Z. Al Kindy, Younghun Kim, Rengaraj Selvaraj. Visible light active CdS@TiO2 core-shell nanostructures for the photodegradation of chlorophenols. Journal of Photochemistry and Photobiology A: Chemistry 2019, 374 , 75-83. https://doi.org/10.1016/j.jphotochem.2019.01.019
    14. Wenbo Shi, Desiree L. Plata. Vertically aligned carbon nanotubes: production and applications for environmental sustainability. Green Chemistry 2018, 20 (23) , 5245-5260. https://doi.org/10.1039/C8GC02195C
    15. Mouza Al Ruqaishy, Faisal Al Marzouqi, Kezhen Qi, Shu-yuan Liu, Sreejith Karthikeyan, Younghun Kim, Salma Mohamed Zahran Al-Kindy, Alex Tawanda Kuvarega, Rengaraj Selvaraj. Template-free preparation of TiO2 microspheres for the photocatalytic degradation of organic dyes. Korean Journal of Chemical Engineering 2018, 35 (11) , 2283-2289. https://doi.org/10.1007/s11814-018-0122-9
    16. Shiman He, Yuying Meng, Qili Wu, Jingling Yang, Senchuan Huang, Xiaohui Li, Shengfu Tong, Tewodros Asefa, Mingmei Wu. Ta-Doped porous TiO 2 nanorod arrays by substrate-assisted synthesis: efficient photoelectrocatalysts for water oxidation. Nanoscale 2018, 10 (41) , 19367-19374. https://doi.org/10.1039/C8NR04003F
    17. Huilin Hou, Huabing Liu, Fengmei Gao, Minghui Shang, Lin Wang, Linli Xu, Wai-Yeung Wong, Weiyou Yang. Packaging BiVO4 nanoparticles in ZnO microbelts for efficient photoelectrochemical hydrogen production. Electrochimica Acta 2018, 283 , 497-508. https://doi.org/10.1016/j.electacta.2018.06.148

    Pair your accounts.

    Export articles to Mendeley

    Get article recommendations from ACS based on references in your Mendeley library.

    Pair your accounts.

    Export articles to Mendeley

    Get article recommendations from ACS based on references in your Mendeley library.

    You’ve supercharged your research process with ACS and Mendeley!

    STEP 1:
    Click to create an ACS ID

    Please note: If you switch to a different device, you may be asked to login again with only your ACS ID.

    Please note: If you switch to a different device, you may be asked to login again with only your ACS ID.

    Please note: If you switch to a different device, you may be asked to login again with only your ACS ID.

    MENDELEY PAIRING EXPIRED
    Your Mendeley pairing has expired. Please reconnect