Tungsten Oxide Hydrogen Reduction Method

Cov txheej txheem txo hydrogen rau kev tsim cov tungsten hmoov feem ntau muaj ob theem: thawj theem, ntawm 500-700 degree, txo tungsten trioxide rau tungsten dioxide; theem ob, ntawm 700-900 degree, txo tungsten dioxide rau tungsten hmoov. Qhov txo qis cov tshuaj tiv thaiv feem ntau yog ua nyob rau hauv lub tubular hluav taws xob rauv lossis lub qhov cub tawg. Txoj kev no tsuas yog tsim nyog rau kev lag luam me me.

Ultrafine tungsten hmoov yog ib qho tseem ceeb raw khoom rau kev tsim cov cemented carbide, thiab tus nqi qis - nqi, loj - nplai ntau lawm ntawm uniform ultrafine tungsten hmoov yeej ib txwm yog ib qho kev tshawb fawb hotspot. Tam sim no, industrially, ultrafine tungsten hmoov yog npaj los ntawm hydrogen txo ntawm tungsten oxide. Blue tungsten yog cov khoom siv raw khoom tsim nyog; los ntawm kev tswj cov txheej txheem tsis xws li txo qhov kub thiab txias thiab hydrogen txaus tus nqi, uniform ultrafine tungsten hmoov tuaj yeem tsim. Zhai Yuchun et al. siv WO3 ua raw khoom thiab kaw- txoj kev txo qis hydrogen ntawm 600℃kom tau txais tungsten hmoov nrog qhov loj me ntawm 20-60 nm thiab purity ntawm 99.76%. Kev txo qis ntawm WO3 hmoov nyob rau hauv ib qho chaw hydrogen yog raws li nram no:

Liao Chunfa et al. tau ua cov kev sim txo hydrogen ntawm tungsten oxide thiab kawm txog cov txheej txheem txo hydrogen ntawm xiav tungsten. Lawv pom tias txoj kev txo hydrogen ntawm tungsten oxide los npaj ultrafine tungsten hmoov yog qhov yooj yim, muaj cov txheej txheem luv luv, thiab tsim nyog rau loj - nplai kev lag luam.