A new method for the preparation of Ru quasi single crystal surfaces

Copper underpotential deposition on Ru quasi-single-crystal films

“…Attard et al recently demonstrated, that it is also possible to prepare quasi-single crystalline Ru films on Pt(1 1 1), Pt(1 0 0) and stepped single-crystal surfaces vicinal to these planes. For Ru-films prepared on a Pt(1 1 1) single-crystal electrode, voltammetric peaks are similar to those reported for single crystal Ru(0 0 0 1) electrodes [13]. The film electrodes are formed by resistive heating of Ru deposited on Pt single-crystal surfaces in a nitrogen atmosphere.…”

“…Platinum metals used to manufacture the single-crystal electrodes were supplied by Goodfellow Metals Ltd. (>99.999% purity). The Pt single-crystal was mounted in a homebuilt Teflon-holder -with a second Pt wire attached to the crystal's head for electric contact (for details see [13]) to close the electric circuit in the resistive heating of the crystal. Preparation of the Pt electrodes was performed by flame annealing according to the method of Clavilier et al [1], heating the crystal to red colour in the flame of a butane gas burner and cooling it afterwards in high-purity hydrogen gas (99.995%).…”

A study of the growth and CO electrooxidation behaviour of PtRh alloys on Pt{100} single crystals

“…In order to carry out the resistive heating treatment of the single crystal in nitrogen directly in the glass electrochemical cell, we used a special holder (details about the resistive heating holder are given elsewhere [41]). Fig.…”

Electrochemical characterisation of gold on Pt{hkl} for ethanol electrocatalysis

“…Hence, much fundamental work has been undertaken to explore the role of defects, adatoms and various electrode materials in facilitating complete activation of ethanol [11,[13][14][15][16][17]. Recently, we have been exploring the feasibility of using Pt{h kl} electrodes as templates for the formation of well defined monometallic and bimetallic adlayers [18][19][20][21]. It is found that so long as the lattice parameter difference between the adsorbate and Pt is not too dissimilar, good pseudomorphic analogues of the bulk adsorbate Miller index plane may be reproduced using a combination of 'forced deposition' and thermal annealing under well defined conditions [18][19][20][21].…”

“…Recently, we have been exploring the feasibility of using Pt{h kl} electrodes as templates for the formation of well defined monometallic and bimetallic adlayers [18][19][20][21]. It is found that so long as the lattice parameter difference between the adsorbate and Pt is not too dissimilar, good pseudomorphic analogues of the bulk adsorbate Miller index plane may be reproduced using a combination of 'forced deposition' and thermal annealing under well defined conditions [18][19][20][21]. In addition, interesting results have been reported previously when adatoms are preferentially deposited at stepped surfaces.…”