Hydrogenation of Pt/TiO2{101} nanobelts: a driving force for the improvement of methanol catalysis

2015 ◽  
Vol 17 (43) ◽  
pp. 28626-28634 ◽  
Author(s):  
Feila Liu ◽  
Peng Xiao ◽  
Wei Quan Tian ◽  
Ming Zhou ◽  
Yanhong Li ◽  
...  

Single-crystalline anatase TiO2 nanobelts with a dominant surface of the {101} facet were hydrogenated and used as active substrates of platinum for methanol oxidation reaction (MOR).

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 595
Author(s):  
Yang ◽  
Park ◽  
Kim ◽  
Kang

Au nanostructures (Au NSs) have been considered promising materials for applications in fuel cell catalysis, electrochemistry, and plasmonics. For the fabrication of high-performance Au NS-based electronic or electrochemical devices, Au NSs should have clean surfaces and be directly supported on a substrate without any mediating molecules. Herein, we report the vapor-phase synthesis of Au NSs on a fluorine-doped tin oxide (FTO) substrate at 120 °C and their application to the electrocatalytic methanol oxidation reaction (MOR). By employing AuCl as a precursor, the synthesis temperature for Au NSs was reduced to under 200 °C, enabling the direct synthesis of Au NSs on an FTO substrate in the vapor phase. Considering that previously reported vapor-phase synthesis of Au NSs requires a high temperature over 1000 °C, this proposed synthetic method is remarkably simple and practical. Moreover, we could selectively synthesize Au nanoparticles (NPs) and nanoplates by adjusting the location of the substrate, and the size of the Au NPs was controllable by changing the reaction temperature. The synthesized Au NSs are a single-crystalline material with clean surfaces that achieved a high methanol oxidation current density of 14.65 mA/cm2 when intimately supported by an FTO substrate. We anticipate that this novel synthetic method can widen the applicability of vapor-phase synthesized Au NSs for electronic and electrochemical devices.


Nanoscale ◽  
2015 ◽  
Vol 7 (7) ◽  
pp. 2856-2861 ◽  
Author(s):  
Chunyong He ◽  
Shiyong Chang ◽  
Xiangdong Huang ◽  
Qingquan Wang ◽  
Ao Mei ◽  
...  

The Magnéli phase Ti8O15 nanowires have been synthesized and used as conductive carbon-free supports to load Pt nanoparticles for direct methanol oxidation reaction (MOR) with higher performance.


2020 ◽  
Vol 56 (32) ◽  
pp. 4448-4451 ◽  
Author(s):  
Yan Guo ◽  
Shuai Chen ◽  
Yuan Li ◽  
Yunwei Wang ◽  
Houbing Zou ◽  
...  

A significant porous structure effect of mesoporous rhodium nanoparticles on the electrocatalytic methanol oxidation reaction was reported.


2017 ◽  
Vol 42 (51) ◽  
pp. 30109-30118 ◽  
Author(s):  
Yuan-Yuan Feng ◽  
Gui-Hua Song ◽  
Qiang Zhang ◽  
Hua-Shuai Hu ◽  
Mei-Ying Feng ◽  
...  

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