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Showing 1 to 12 of 159 entries
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Reliable metal deposition into TiO(2) nanotubes for leakage-free interdigitated electrode structures and use as a memristive electrode.

Angewandte Chemie (International ed. in English)

Liu N, Lee K, Schmuki P.
PMID: 24123424
Angew Chem Int Ed Engl. 2013 Nov 18;52(47):12381-4. doi: 10.1002/anie.201306334. Epub 2013 Oct 02.

Nearly 100 % filling of TiO2 nanotubes with metals, including Ag, Cu, Au, and Pt, was achieved by defect-sealing treatment at the bottom of the nanotubes, followed by metal deposition using nuclei formation/coalescence. The resulting short-circuit-free interdigitated electrode configurations...

"Suspended" Pt nanoparticles over TiO₂ nanotubes for enhanced photocatalytic H₂ evolution.

Chemical communications (Cambridge, England)

Nguyen NT, Yoo J, Altomare M, Schmuki P.
PMID: 25019463
Chem Commun (Camb). 2014 Sep 04;50(68):9653-6. doi: 10.1039/c4cc04087b.

In the present work we introduce a technique to form a photocatalyst based on Pt nanoparticles suspended over the mouth of anodic TiO2 nanotubes. These structures are obtained by decorating the top end of highly ordered TiO2 nanotubes with...

Molten o-H3PO4: A New Electrolyte for the Anodic Synthesis of Self-Organized Oxide Structures--WO3 Nanochannel Layers and Others.

Journal of the American Chemical Society

Altomare M, Pfoch O, Tighineanu A, Kirchgeorg R, Lee K, Selli E, Schmuki P.
PMID: 25884483
J Am Chem Soc. 2015 May 06;137(17):5646-9. doi: 10.1021/jacs.5b02104. Epub 2015 Apr 23.

We introduce the use of pure molten ortho-phosphoric acid (o-H3PO4) as an electrolyte for self-organizing electrochemistry. This electrolyte allows for the formation of self-organized oxide architectures (one-dimensional nanotubes, nanochannels, nanopores) on metals such as tungsten that up to now...

Self-organized arrays of single-metal catalyst particles in TiO2 cavities: a highly efficient photocatalytic system.

Angewandte Chemie (International ed. in English)

Yoo JE, Lee K, Altomare M, Selli E, Schmuki P.
PMID: 23765440
Angew Chem Int Ed Engl. 2013 Jul 15;52(29):7514-7. doi: 10.1002/anie.201302525. Epub 2013 Jun 13.

Peas in a pod: A highly aligned Au(np)@TiO2 photocatalyst was formed by self-organizing anodization of a Ti substrate followed by dewetting of a gold thin film. This leads to exactly one Au nanoparticle (np) per TiO2 nanocavity. Such arrays...

NH₃ treatment of TiO₂ nanotubes: from N-doping to semimetallic conductivity.

Chemical communications (Cambridge, England)

Al-Thabaiti SA, Hahn R, Liu N, Kirchgeorg R, So S, Schmuki P, Basahel SN, Bawaked SM.
PMID: 24918106
Chem Commun (Camb). 2014 Jul 28;50(59):7960-3. doi: 10.1039/c4cc02069c.

In the present work we show that a suitable high temperature ammonia treatment allows for the conversion of single-walled TiO2 nanotube arrays not only to a N-doped photoactive anatase material (which is already well established), but even further into...

Voltage-induced payload release and wettability control on TiO2 and TiO2 nanotubes.

Angewandte Chemie (International ed. in English)

Song YY, Roy P, Paramasivam I, Schmuki P.
PMID: 19998403
Angew Chem Int Ed Engl. 2010;49(2):351-4. doi: 10.1002/anie.200905111.

No abstract available.

Nb doping of TiO2 nanotubes for an enhanced efficiency of dye-sensitized solar cells.

Chemical communications (Cambridge, England)

Yang M, Kim D, Jha H, Lee K, Paul J, Schmuki P.
PMID: 21184009
Chem Commun (Camb). 2011 Feb 21;47(7):2032-4. doi: 10.1039/c0cc04993j. Epub 2010 Dec 24.

Nb-doped TiO(2) nanotube (with C(Nb) < 1 wt%) layers were successfully fabricated by self-ordered electrochemical anodization of Ti-Nb alloys. When used in dye-sensitized solar cells the efficiency enhanced by up to 30% compared to non-doped TiO(2) nanotubes. IMVS measurements...

Morphological instability leading to formation of porous anodic oxide films.

Nature materials

Hebert KR, Albu SP, Paramasivam I, Schmuki P.
PMID: 22138790
Nat Mater. 2011 Dec 04;11(2):162-6. doi: 10.1038/nmat3185.

Electrochemical oxidation of metals, in solutions where the oxide is somewhat soluble, produces anodic oxides with highly regular arrangements of pores. Although porous aluminium and titanium oxides have found extensive use in functional nanostructures, pore initiation and self-ordering are...

Highly self-ordered nanochannel TiO2 structures by anodization in a hot glycerol electrolyte.

Chemical communications (Cambridge, England)

Lee K, Kim D, Schmuki P.
PMID: 21494725
Chem Commun (Camb). 2011 May 28;47(20):5789-91. doi: 10.1039/c1cc11160d. Epub 2011 Apr 14.

In the present work, we report on the self-organized growth of TiO(2) layers consisting of a highly aligned nanochannel morphology. We show that an electrochemical anodization process of Ti in a hot glycerol/K(2)HPO(4) electrolyte can be adjusted to yield...

Advanced geometries of PEDOT formed in titania nanotubes.

Chemphyschem : a European journal of chemical physics and physical chemistry

Kowalski D, Schmuki P.
PMID: 23033216
Chemphyschem. 2012 Dec 07;13(17):3790-3. doi: 10.1002/cphc.201200735. Epub 2012 Oct 02.

In and out of tube: Robust poly-3,4-ethylene-dioxythiophene nanostructures in the form of nanopore arrays and inverse nanotube arrays are obtained by site-selective deposition into TiO(2) nanotubes. The deposition process critically depends on the applied potential and is in line...

Forming a Highly Active, Homogeneously Alloyed AuPt Co-catalyst Decoration on TiO.

ACS applied materials & interfaces

Bian H, Nguyen NT, Yoo J, Hejazi S, Mohajernia S, Müller J, Spiecker E, Tsuchiya H, Tomanec O, Sanabria-Arenas BE, Zboril R, Li YY, Schmuki P.
PMID: 29741090
ACS Appl Mater Interfaces. 2018 May 30;10(21):18220-18226. doi: 10.1021/acsami.8b03713. Epub 2018 May 18.

Au and Pt do not form homogeneous bulk alloys as they are thermodynamically not miscible. However, we show that anodic TiO

Anodizing of Self-Passivating W .

ACS applied materials & interfaces

Siol S, Beall C, Ott N, Döbeli M, González-Castaño M, Wick-Joliat R, Tilley SD, Jeurgens LPH, Schmutz P, Cancellieri C.
PMID: 30734550
ACS Appl Mater Interfaces. 2019 Mar 06;11(9):9510-9518. doi: 10.1021/acsami.8b19170. Epub 2019 Feb 19.

TiO

Showing 1 to 12 of 159 entries