177 citations · 1.5k across the 20 of their papers we have counts for
20 papers
Dewetted Au nanoparticles on TiO surfaces -- Evidence of a size-independent plasmonic photo-electrochemical response
Markus Licklederer, Nhat Truong Nguyen, Reza Mohammadi +6
Flat TiO layers are deposited by magnetron sputtering on Ti/Si wafers. The TiO surfaces are then sputter-coated with thin Au films of a nominal thickness of 0.5-10 nm that…
Enhanced Solar Water Splitting by Swift Charge Separation in Au/FeOOH Sandwiched Single Crystalline FeO Nanoflake Photoelectrodes
Lei Wang, Nhat Truong Nguyen, Yajun Zhang +2
In this work, single crystalline -FeO nanoflakes (NFs) are formed in a highly dense array by Au seeding of a Fe substrate by a thermal oxidation technique. The NFs are c…
Highly Conducting Spaced TiO Nanotubes Enable Defined Conformal Coating with Nanocrystalline NbO and High Performance Supercapacitor Applications
Selda Ozkan, Nhat Truong Nguyen, Imgon Hwang +2
In this work, we report on the electrochemical behavior of nitrided spaced TiO nanotubes conformally coated with a nanocrystalline NbO layer and find for these hierarch…
Effect of Low Oxygen Annealing on Photoelectrochemical Water Splitting Properties of -FeO
Yoichi Makimizu, Nhat Truong Nguyen, Hyo-Jin Ahn +4
Photoelectrochemical (PEC) water splitting is a promising method for conversing solar energy into chemical energy stored in the form of hydrogen. Nanostructured hematite (-Fe$_2…
Nanoporous AuPt and AuPtAg alloy co-catalysts formed by dewetting-dealloying on ordered TiO2 nanotube surface lead to significantly enhanced photocatalytic H2 generation
Nhat Truong Nguyen, Selda Ozkan, Ondrej Tomanec +3
Effective co-catalysts are of key importance for photocatalytic H2 generation from aqueous environments. An attractive co-catalyst candidate are AuPt (metastable) alloys due to the…
Amorphous Mo-Ta oxide nanotubes for long-term stable Mo oxide based supercapacitors
Bowen Jin, Seyedsina Hejazi, Florian Pyczak +8
With a large-scale usage of portable electric appliances, a high demand for increasingly high density energy storage devices has emerged. MoO3 has, in principle, a large potential…
Spaced TiO Nanotube Arrays Allow for High Performance Hierarchical Supercapacitor Structure
Nhat Truong Nguyen, Selda Ozkan, Imgon Hwang +2
In this work we describe the synthesis and electrochemical properties of nitridated hierarchical TiO nanotubes as an electrode for supercapacitors. The hierarchical TiO nan…
Black Magic in Gray Titania: Noble-Metal-Free Photocatalytic H2 Evolution from Hydrogenated Anatase
Ning Liu, Xuemei Zhou, Nhat Truong Nguyen +5
"Black" TiO2 has gained increasing interest because of its outstanding properties and promising applications in a wide range of fields. Among the outstanding features of the materi…
Forming a highly active, homogeneously alloyed AuPt co-catalyst decoration on O2 nanotubes directly during anodic growth
Haidong Bian, Nhat Truong Nguyen, JeongEun Yoo +10
Au and Pt do not form homogeneous bulk alloys as they are thermodynamically not miscible. However, we show that anodic TiO nanotubes (NTs) can in-situ be uniformly decorated wi…
TiO2 nanotubes with laterally spaced ordering enable optimized hierarchical structures with significantly enhanced photocatalytic H2 generation
Nhat Truong Nguyen, Selda Ozkan, Imgon Hwang +2
In the present work we grow self-organized TiO2 nanotube arrays with a defined and controlled regular spacing between individual nanotubes. These defined intertube gaps allow to bu…
TiO2 nanotubes: N-ion implantation at low-dose provides noble-metal-free photocatalytic H2-evolution activity
Xuemei Zhou, Volker Häublein, Ning Liu +7
Low-dose nitrogen implantation induces in TiO2 nanotubes a co-catalytic activity for photocatalytic H2-evolution. The use of an ion implantation process leads to a N-implanted zone…
Stable Co-Catalyst-Free Photocatalytic H2 Evolution From Oxidized Titanium Nitride Nanopowders
Xuemei Zhou, Eva M. Zolnhofer, Nhat Truong Nguyen +3
In the present work, a simple strategy is used to thermally oxidize TiN nanopowder (ca. 20 nm) to an anatase phase of a TiO2:Ti3+:N compound. In contrast to the rutile phase of suc…
Use of Anodic TiO2 Nanotube Layers as Mesoporous Scaffolds for Fabricating CH3NH3PbI3 Perovskite-based Solid State Solar Cells
Raul Salazar, Marco Altomare, Kiyoung Lee +7
We optimize the deposition of CH3NH3PbI3 perovskite into mesoporous electrodes consisting of anodic TiO2 nanotube layers. By a simple spin coating approach, complete filling of the…
Noble metals on anodic TiO2 nanotubes mouths: Thermal dewetting of minimal Pt co-catalyst loading leads to significantly enhanced photocatalytic H2 generation
Nhat Truong Nguyen, Marco Altomare, JeongEun Yoo +2
The least is the best. We introduce a technique to strongly reduce Pt use for photocatalytic hydrogen generation from TiO2 nanotubes. By site-selectively depositing thin layers of…
Suspended Pt nanoparticles over TiO2 nanotubes for enhanced photocatalytic H2 evolution
Nhat Truong Nguyen, JeongEun Yoo, Marco Altomare +1
In the present work we introduce a technique to form a photocatalyst, based on Pt nanoparticles suspended over the mouth of TiO2 nanotubes. These structures are obtained by the dec…
Aligned metal oxide nanotube arrays: key-aspects of anodic TiO2 nanotube formation and properties
Francesca Riboni, Nhat Truong Nguyen, Seulgi So +1
Over the past ten years, self-aligned TiO2 nanotubes have attracted tremendous scientific and technological interest due to their anticipated impact on energy conversion, environme…
Efficient Photocatalytic H2 Evolution: Controlled Dewetting-Dealloying to Fabricate Site-Selective High-activity Nanoporous Au Particles on Highly Ordered TiO2 Nanotube Arrays
Nhat Truong Nguyen, Marco Altomare, JeongEun Yoo +1
Overlaid self-ordering processes: we form anodic self-organized TiO2 nanostumps and exploit them for self-ordering dewetting of Au-Ag sputtered films. This forms ordered particle c…
Controlled spacing of self-organized anodic TiO2 nanotubes
Selda Ozkan, Nhat Truong Nguyen, Anca Mazare +1
We report on how to grow and control self-organized TiO2 nanotube arrays that show defined and regular gaps between individual nanotubes. For this we use electrochemical anodizatio…
Aminated TiO2 nanotube as a Photoelectrochemical Water Splitting photoanode
Seyedsina Hejazi, Nhat Truong Nguyen, Anca Mazare +1
The present work reports on the enhancement of TiO2 nanotubes photoelectrochemical water splitting rate by decorating the nanostructure with an amine layer in a hydrothermal proces…
Anodic TiO2 nanotube layers: why does self-organized growth occur - A mini review
Xuemei Zhou, Nhat Truong Nguyen, Selda Ozkan +1
The present review gives an overview of the highlights of more than 10 years of research on synthesis and applications of ordered oxide structures (nanotube layers, hexagonal pore…