Fuel cells are one of the most promising renewable energy sources. However, they are relatively expensive due to their use of platinum, a precious metal, as the catalyst. Much research has been conducted with the aim of optimizing fuel cell efficiency, including identifying alternative catalysts. In this study, we propose a new parameter known as relative bond strength as an indicator for the catalytic properties of a material. Relative bond strength is calculated based upon the relationship between bond length and bond strength. The results of this study provide evidence for the viability of this parameter through computational calculation involving different types of materials and cluster sizes.
Type of bond is vital to understand the mechanism of interaction between corresponds atoms. We used three kinds of method to determine the type of bond between diatomic cluster of platinum and hydrogen: types of element, electronegativity and electron distribution. In this work, we found that the results from these three methods are not unanimously agreed with each other for bond type forming in platinum-hydrogen diatomic cluster. Thus, we conclude that the type of bond is hybrid of both: mainly covalent and slightly ionic.
ABSTRAKJenis ikatan adalah penting bagi memahami mekanisme sesuatu interaksi antara dua atom terbabit. Kami telah menggunakan tiga kaedah dalam menentukan jenis ikatan di antara kelompok dwi-atom platinum dan hidrogen: jenis unsur, keelektronegatifan dan taburan elektron. Dalam kajian ini, kami dapati bahawa keputusan daripada ketiga-tiga kaedah tidak sepakat mengenai jenis ikatan yang terbentuk antara kelompok dwi-atom platinum dan hidrogen. Oleh itu, kami menyimpulkan bahawa jenis ikatan yang terbentuk adalah campuran ikatan kovalen dan ionik.Kata kunci: Ikatan kacukan; jenis ikatan; kelompok dwiatom; platinum
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