催化劑產(chǎn)品及廠家
均相催化劑的組成較單純，通常為某種化合物。多相催化用負載型催化劑的組成較復雜，通常由活性金屬組分、助催化劑及載體組成。助催化劑是添加到催化劑中的少量物質(zhì)，它本身無活性或活性很小，但能改善催化劑的性能。載體是催化劑活性組分的分散劑或支持物。載體的主要作用是增加催化劑的有效表面，提供合適的孔結(jié)構(gòu)，保證足夠的機械強度和熱穩(wěn)定性。常用的催化劑載體有al2o3、sio2，多孔陶瓷、活性炭等。不同類型的催化劑有不同的制備方法。
更新時間:2025-11-02
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