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This is a 19th century history of Texas, focusing on its Spanish and Mexican past, as well as the war for independence. From the preface: "The field for historical research in Texas, covering two centuries of time, is wide and, for the most part, deeply interesting. To the present and future generations, however, its chief historic value is confined to that period of time beginning about the close of the 18th and the commencement of the 19th century. Anterior to that time, outside of feeble settlements at San Antonio, Goliad and Nacogdoches and a few straggling missions, the country remained a primeval wilderness. Nor did any real progress toward reclamation occur until an effort was made to...
The future of the precious metals is shiny and resistant. Although expensive and potentially replaceable by transition metal catalysts, precious metal implementation in research and industry shows potential. These metals catalyze oxidation and hydrogenation due to their dissociative behavior toward hydrogen and oxygen, dehydrogenation, isomerization, and aromatization, etc. The precious metal catalysts, especially platinum-based catalysts, are involved in a variety of industrial processes. Examples include Pt–Rh gauze for nitric acid production, the Pt/Al2O3 catalyst for cyclohexane and propylene production, and Pd/Al2O3 catalysts for petrochemical hydropurification reactions, etc. A quick...
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