a70a42c4-af78-4db9-bcae-c25caa8c7cea Niobium oxide 氧化铌 columbium oxide; niobia columbium oxide; niobia Materials production Inorganic chemicals Niobium oxide, sometimes called columbium oxide, refers to the general formula Nb 3n+1 O 8n−2 where n ranges from 5 - 8 inclusive, e.g. Nb 8 O 19 (Nb 16 O 38 ). Natural niobium oxide is known as niobia. Niobium oxidizes in Earth's atmosphere very slowly, hence its application in jewelry as a hypoallergenic alternative to nickel. Niobium oxide (Nb 2 O 5) is a transition metal oxide that exhibits a bandgap value of 3.4 eV. It is used in electrochromic devices, energy-efficient windows, oxygen sensors, and photocatalysis. 氧化铌，有时也称为氧化钶，通式为 Nb 3n+1 O 8n-2，其中 n 为 5 - 8（含 5 - 8），例如 Nb 8 O 19（Nb 16 O 38）。天然氧化铌被称为niobia。铌在地球大气中的氧化速度非常缓慢，因此它可作为镍的低过敏性替代品应用于珠宝首饰中。氧化铌（Nb 2 O 5）是一种过渡金属氧化物，带隙值为 3.4 eV。它可用于电致变色设备、节能窗、氧传感器和光催化。 Nb 3n+1 O 8n−2; Nb 2 O 5 0 Product flow 2024-04-16T19:00:20.917733+08:00 ILCD format 00.01.05 Mass 1.0