Nano-ceramic support materials for low temperature fuel cell catalysts

Nanoscale ◽  
2014 ◽  
Vol 6 (10) ◽  
pp. 5063-5074 ◽  
Author(s):  
Haifeng Lv ◽  
Shichun Mu

Nano-ceramic materials have attracted much attention for increasing the stability of low temperature fuel cell catalysts due to their outstanding oxidation and acid corrosion resistance, and excellent thermal stability.

2009 ◽  
Vol 180 (9-10) ◽  
pp. 746-763 ◽  
Author(s):  
E. Antolini ◽  
E.R. Gonzalez

2004 ◽  
Vol 104 (10) ◽  
pp. 4613-4636 ◽  
Author(s):  
Andrea E. Russell ◽  
Abigail Rose

2019 ◽  
Vol 10 (1) ◽  
pp. 91 ◽  
Author(s):  
Chenchen Shen ◽  
Rui Li ◽  
Jianzhong Pei ◽  
Jun Cai ◽  
Tao Liu ◽  
...  

To solve the nanoparticles (NPs) agglomeration phenomena of nanometer calcium carbonate (nano-CaCO3) modified asphalt binder, in this paper, solvent-free CaCO3 nanofluids (NFs) were prepared based on surface-functionalized CaCO3 NPs to study the effect on asphalt. Microscopic structures, compositions, and thermal stability were characterized by Fourier transform infrared spectrometer (FTIR), X-ray diffractometer (XRD), transmission electron microscope (TEM), and thermogravimetric analyzer (TGA), respectively. Results showed that perfect CaCO3 NFs were successfully prepared, and were good enough for asphalt mixing due to their excellent thermal stability. Scanning electron microscopy (SEM), conventional tests, dynamic shear rheometry (DSR), and bending beam rheometry (BBR) were conducted to investigate the modifying effect. The SEM results indicated that CaCO3 NFs had better compatibility with asphalt binder than original CaCO3 NPs. Conventional and DSR test results demonstrated that CaCO3 NFs had slight negative effects on high-temperature performance while improving the low-temperature performance of the asphalt binder. The BBR test results confirmed that the modifier addition effectively enhanced asphalt binders’ low-temperature crack resistance performance.


2016 ◽  
Vol 4 (24) ◽  
pp. 9394-9402 ◽  
Author(s):  
Han Gil Seo ◽  
Yoonseok Choi ◽  
Bonjae Koo ◽  
Ahreum Jang ◽  
WooChul Jung

Nano-precipitates of Sm-doped CeO2 were uniformly coated onto porous Pt thin films via cathodic electrochemical deposition. Deposition of only 5 min created an oxide coating that increased the values of the electrode conductance by more than two orders of magnitude and provided outstanding thermal stability even at 600 °C for more than 100 h compared to the bare Pt electrodes.


2013 ◽  
Vol 03 (04) ◽  
pp. 121-153 ◽  
Author(s):  
Maryam Yaldagard ◽  
Mohsen Jahanshahi ◽  
Naser Seghatoleslami

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