Structure and Facet Characterization of Platinum Nanoparticles Loaded on Carbon Black Particles using HRTEM
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 11
Abstract
The atomic structure of platinum nanoparticles (Pt NPs) loaded on carbon black (CB) particles was investigated using high-resolution transmission electron microscopy (HRTEM). The Pt NPs were inhomogeneously strained and approximated as monoclinic structures. No correlation was observed between the monoclinic lattice parameters and the size of Pt NPs. About 80 % of the Pt NPs were compressively strained, and about 20 % of the Pt NPs were expansively strained. Side-view HRTEM analyses of Pt NPs were performed for specimens milled by a focused ion beam apparatus (FIB). The (111), (100), and (110) facets of the Pt NPs were observed to be adhered to CB particles. The frequency of Pt NP-CB adhesion interfaces decreased in the order of (111), (100), and (110) facets. This order was consistent with the (111), (100), and (110) planar packing fractions of Pt, the observed frequencies of (111), (100), and (110) facets of Pt NPs, and the (111), (100), and (110) surface energies of Pt. Further, variation of (111) interplanar spacing of Pt NPs on CB particles was measured as a function of azimuth angle of the (111) planes, and no correlation was observed between the variation of (111) interplanar spacing and the azimuth angle.
Authors and Affiliations
Kun’ichi Miyazawa, Shuichi Shimomura, Masaru Yoshitake, Yumi Tanaka
Keywords
Related Articles
- EP ID EP409200
- DOI 10.9790/9622-0811011321.
- Views 140
- Downloads 0
A Design of Sigma-Delta ADC Using OTA
Sigma-Delta Analog-to-Digital converter (ADC), is widely used in portable electronic products. An operational transconductance amplifier (OTA) is one of the most important components of ADC. This paper presents a new des...
Efficient Control of Doubly Fed Induction Generator Wind Turbine Implementation in Matlab Simulink
This paper presents an efficient control of Doubly Fed Induction Generator in variable speed wind power generation. The DFIGs are widely used in variable speed wind energy conversion system (WECS) because their voltage s...
Estimation of seasonal salt balance in soil water of Siwa Oasis closed basin, Western Desert, Egypt
Salinity of soil water problem in closed basins is so vital to water and soil. Siwa Oasis suffers from serious soil-water salinization and water logging problems. During the last four decades, more trials were carried ou...
A Review on Performance improvement of Non conventional air compressor
In this century, most of machine runs by electricity and for produce that electricity we use non-accessible element or fuel like: coal but these non-accessible element or fuel will not available in near future. This mode...
Attribute Based Image Duplication Alert Message Using Big Data
Using this paper “Attribute Based Image Duplication Alert Message Using Big Data” the stranger cannot copy any of the photo which is related to the user and, we also provide fast image search. That means, the image will...