CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Uniform Doping of Titanium in Hematite Nanorods for Efficient Photoelectrochemical Water Splitting
Wang, DG; Chen, HC; Chang, GL; Lin, X; Zhang, YY; Aldalbahi, A; Peng, C; Wang, JQ; Fan, CH; Aldalbahi, A (reprint author), King Saud Univ, Dept Chem, Riyadh 11451, Saudi Arabia.
2015
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume7Issue:25Pages:14072—14078
Subtype期刊文献
AbstractDoping elements in hematite nanostructures is a promising approach to improve the photoelectrochemical (PEC) water-splitting performance of hematite photoanodes. However, uniform doping with precise control on doping amount and morphology is the major challenge for quantitatively investigating the PEC water-splitting enhancement. Here, we report on the design and synthesis of uniform titanium (Ti)-doped hematite nanorods with precise control of the Ti amount and morphology for highly effective PEC water splitting using an atomic layer deposition assisted solid-state diffusion method. We found that Ti doping promoted band bending and increased the carrier density as well as the surface state. Remarkably, these uniformly doped hematite nanorods exhibited high PEC performance with a pronounced photocurrent density of 2.28 mA/cm(2) at 1.23 V vs reversible hydrogen electrode (RHE) and 4.18 mA/cm(2) at 1.70 V vs RHE, respectively. Furthermore, as-prepared Ti-doping hematite nanorods performed excellent repeatability and durability; over 80% of the as-fabricated photoanodes reproduced the steady photocurrent density of 1.9-2.2 mA/cm(2) at 1.23 V vs RHE at least 3 h in a strong alkaline electrolyte solution.
KeywordAtomic Layer Deposition Oxidation Photoanodes Oxide Electrodes Arrays Nanostructures Activation Nanowires Dynamics
Language英语
WOS IDWOS:000357436800041
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25091
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorAldalbahi, A (reprint author), King Saud Univ, Dept Chem, Riyadh 11451, Saudi Arabia.
Recommended Citation
GB/T 7714
Wang, DG,Chen, HC,Chang, GL,et al. Uniform Doping of Titanium in Hematite Nanorods for Efficient Photoelectrochemical Water Splitting[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(25):14072—14078.
APA Wang, DG.,Chen, HC.,Chang, GL.,Lin, X.,Zhang, YY.,...&Aldalbahi, A .(2015).Uniform Doping of Titanium in Hematite Nanorods for Efficient Photoelectrochemical Water Splitting.ACS APPLIED MATERIALS & INTERFACES,7(25),14072—14078.
MLA Wang, DG,et al."Uniform Doping of Titanium in Hematite Nanorods for Efficient Photoelectrochemical Water Splitting".ACS APPLIED MATERIALS & INTERFACES 7.25(2015):14072—14078.
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