Platinum Metals Review - Volume 10, Issue 4, 1966

Sufficient information is now available to lead the intending user of a supported noble metal catalyst to that combination of metal and support most likely to catalyse the reaction he desires to perform. However, each combination can be prepared by a number of different techniques, and the resulting catalysts need to be evaluated since their performance in the desired reaction will depend on a number of factors that are still only poorly understood. The purpose of this article is to describe some of the precautions which need to be observed in evaluating catalysts for liquid-phase reactions.

Adequate instrumentation and control of glass melting furnaces can yield large savings in fuel and marked increases in throughput. Among the variables to be controlled the temperatures of both the molten glass and the atmosphere above glass level are of great importance and a great deal of attention has been given to the best means of indicating these temperatures and thus of controlling glass temperature. In this article the author reviews Russian and British practice in this field and compares certain details of procedure and instrumentation

The relative electrocatalytic activities of some binary platinum alloys for the oxidation and ionisation of hydrogen and the anodic oxidation of methanol are briefly described. For the hydrogen electrode reaction in acid solution the ruthenium-platinum and rhodium-platinum alloys are generally not as active as bright platinum itself. This is also found for the anodic oxidation of methanol in acid solution. At the low voltametric “sweep” rates used in the latter experiments the activities are somewhat greater on the reverse scan, from high to low positive potentials, than on the forward scan.