The choice of tungsten in catalysis is influenced by several factors: 1. High Thermal Stability: Tungsten maintains its structural integrity at high temperatures, making it ideal for reactions that require elevated temperatures. 2. Resistance to Corrosion: Tungsten's chemical stability ensures it remains effective in harsh reaction environments. 3. Versatility: Tungsten can be combined with other metals and non-metals to form complex catalysts that are effective for a wide range of reactions.