Anchoring ultrafine metallic and oxidized Pt nanoclusters on yolk-shell TiO2 for unprecedentedly high photocatalytic hydrogen production

Jun Jin, Chao Wang, Xiao Ning Ren, Shao Zhuan Huang, Min Wu, Li Hua Chen, Tawfique Hasan, Bin Jie Wang, Yu Li, Bao Lian Su

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

We demonstrate an alkali modification process to produce highly dispersed ultrafine Pt nanoclusters with metallic Pt0 and oxidized Pt2+ species as co-catalyst anchored on nanosheet-constructed yolk-shell TiO2 (NYTiO2-Pt) acting as light harvesting reactor for highly efficient photocatalytic H2 production. Benefiting from the high surface area, highly dispersed ultrafine Pt nanoclusters (~0.6 nm) with Pt0 and Pt2+ species and special nanosheet-constructed yolk-shell structure, this novel light harvesting reactor exhibits excellent performance for photocatalytic H2 production. The NYTiO2-Pt-0.5 (0.188 wt% Pt) demonstrates an unprecedentedly high H2 evolution rate of 20.88 mmol h−1 g−1 with excellent photocatalytic stability, which is 87 times than that of NYTiO2-Pt-3.0 (0.24 mmol h−1 g−1, 1.88 wt% Pt), and also much higher than those of other TiO2 nanostructures with the same Pt content. Such H2 evolution rate is the highest reported for photocatalytic H2 production with such a low Pt content under simulated solar light. Our strategy here suggests that via alkali modifying the photocatalysts, we can not only enhance the H2 production for solar energy conversion but also significantly decrease the noble metal content for cost saving.

langueAnglais
Pages118-126
Nombre de pages9
journalNano Energy
Volume38
Les DOIs
étatPublié - 1 août 2017

Empreinte digitale

Nanoclusters
Hydrogen production
Nanosheets
Alkalies
Photocatalysts
Precious metals
Energy conversion
Solar energy
Nanostructures
Catalysts
Ultrafine
Costs

mots-clés

    Citer ceci

    Jin, Jun ; Wang, Chao ; Ren, Xiao Ning ; Huang, Shao Zhuan ; Wu, Min ; Chen, Li Hua ; Hasan, Tawfique ; Wang, Bin Jie ; Li, Yu ; Su, Bao Lian. / Anchoring ultrafine metallic and oxidized Pt nanoclusters on yolk-shell TiO2 for unprecedentedly high photocatalytic hydrogen production. Dans: Nano Energy. 2017 ; Vol 38. p. 118-126
    @article{fb6ae10882b04772b5e4732ab0a4a1ca,
    title = "Anchoring ultrafine metallic and oxidized Pt nanoclusters on yolk-shell TiO2 for unprecedentedly high photocatalytic hydrogen production",
    abstract = "We demonstrate an alkali modification process to produce highly dispersed ultrafine Pt nanoclusters with metallic Pt0 and oxidized Pt2+ species as co-catalyst anchored on nanosheet-constructed yolk-shell TiO2 (NYTiO2-Pt) acting as light harvesting reactor for highly efficient photocatalytic H2 production. Benefiting from the high surface area, highly dispersed ultrafine Pt nanoclusters (~0.6 nm) with Pt0 and Pt2+ species and special nanosheet-constructed yolk-shell structure, this novel light harvesting reactor exhibits excellent performance for photocatalytic H2 production. The NYTiO2-Pt-0.5 (0.188 wt{\%} Pt) demonstrates an unprecedentedly high H2 evolution rate of 20.88 mmol h−1 g−1 with excellent photocatalytic stability, which is 87 times than that of NYTiO2-Pt-3.0 (0.24 mmol h−1 g−1, 1.88 wt{\%} Pt), and also much higher than those of other TiO2 nanostructures with the same Pt content. Such H2 evolution rate is the highest reported for photocatalytic H2 production with such a low Pt content under simulated solar light. Our strategy here suggests that via alkali modifying the photocatalysts, we can not only enhance the H2 production for solar energy conversion but also significantly decrease the noble metal content for cost saving.",
    keywords = "Alkali modification, Nanosheet-constructed yolk-shell TiO, Photocatalytic H production, Pt nanoclusters, Pt and Pt",
    author = "Jun Jin and Chao Wang and Ren, {Xiao Ning} and Huang, {Shao Zhuan} and Min Wu and Chen, {Li Hua} and Tawfique Hasan and Wang, {Bin Jie} and Yu Li and Su, {Bao Lian}",
    year = "2017",
    month = "8",
    day = "1",
    doi = "10.1016/j.nanoen.2017.05.025",
    language = "English",
    volume = "38",
    pages = "118--126",
    journal = "Nano Energy",
    issn = "2211-2855",
    publisher = "Elsevier",

    }

    Anchoring ultrafine metallic and oxidized Pt nanoclusters on yolk-shell TiO2 for unprecedentedly high photocatalytic hydrogen production. / Jin, Jun; Wang, Chao; Ren, Xiao Ning; Huang, Shao Zhuan; Wu, Min; Chen, Li Hua; Hasan, Tawfique; Wang, Bin Jie; Li, Yu; Su, Bao Lian.

    Dans: Nano Energy, Vol 38, 01.08.2017, p. 118-126.

    Résultats de recherche: Contribution à un journal/une revueArticle

    TY - JOUR

    T1 - Anchoring ultrafine metallic and oxidized Pt nanoclusters on yolk-shell TiO2 for unprecedentedly high photocatalytic hydrogen production

    AU - Jin,Jun

    AU - Wang,Chao

    AU - Ren,Xiao Ning

    AU - Huang,Shao Zhuan

    AU - Wu,Min

    AU - Chen,Li Hua

    AU - Hasan,Tawfique

    AU - Wang,Bin Jie

    AU - Li,Yu

    AU - Su,Bao Lian

    PY - 2017/8/1

    Y1 - 2017/8/1

    N2 - We demonstrate an alkali modification process to produce highly dispersed ultrafine Pt nanoclusters with metallic Pt0 and oxidized Pt2+ species as co-catalyst anchored on nanosheet-constructed yolk-shell TiO2 (NYTiO2-Pt) acting as light harvesting reactor for highly efficient photocatalytic H2 production. Benefiting from the high surface area, highly dispersed ultrafine Pt nanoclusters (~0.6 nm) with Pt0 and Pt2+ species and special nanosheet-constructed yolk-shell structure, this novel light harvesting reactor exhibits excellent performance for photocatalytic H2 production. The NYTiO2-Pt-0.5 (0.188 wt% Pt) demonstrates an unprecedentedly high H2 evolution rate of 20.88 mmol h−1 g−1 with excellent photocatalytic stability, which is 87 times than that of NYTiO2-Pt-3.0 (0.24 mmol h−1 g−1, 1.88 wt% Pt), and also much higher than those of other TiO2 nanostructures with the same Pt content. Such H2 evolution rate is the highest reported for photocatalytic H2 production with such a low Pt content under simulated solar light. Our strategy here suggests that via alkali modifying the photocatalysts, we can not only enhance the H2 production for solar energy conversion but also significantly decrease the noble metal content for cost saving.

    AB - We demonstrate an alkali modification process to produce highly dispersed ultrafine Pt nanoclusters with metallic Pt0 and oxidized Pt2+ species as co-catalyst anchored on nanosheet-constructed yolk-shell TiO2 (NYTiO2-Pt) acting as light harvesting reactor for highly efficient photocatalytic H2 production. Benefiting from the high surface area, highly dispersed ultrafine Pt nanoclusters (~0.6 nm) with Pt0 and Pt2+ species and special nanosheet-constructed yolk-shell structure, this novel light harvesting reactor exhibits excellent performance for photocatalytic H2 production. The NYTiO2-Pt-0.5 (0.188 wt% Pt) demonstrates an unprecedentedly high H2 evolution rate of 20.88 mmol h−1 g−1 with excellent photocatalytic stability, which is 87 times than that of NYTiO2-Pt-3.0 (0.24 mmol h−1 g−1, 1.88 wt% Pt), and also much higher than those of other TiO2 nanostructures with the same Pt content. Such H2 evolution rate is the highest reported for photocatalytic H2 production with such a low Pt content under simulated solar light. Our strategy here suggests that via alkali modifying the photocatalysts, we can not only enhance the H2 production for solar energy conversion but also significantly decrease the noble metal content for cost saving.

    KW - Alkali modification

    KW - Nanosheet-constructed yolk-shell TiO

    KW - Photocatalytic H production

    KW - Pt nanoclusters

    KW - Pt and Pt

    UR - http://www.scopus.com/inward/record.url?scp=85020036908&partnerID=8YFLogxK

    U2 - 10.1016/j.nanoen.2017.05.025

    DO - 10.1016/j.nanoen.2017.05.025

    M3 - Article

    VL - 38

    SP - 118

    EP - 126

    JO - Nano Energy

    T2 - Nano Energy

    JF - Nano Energy

    SN - 2211-2855

    ER -