CAJ | 학술논문

以1,6-己二胺和钼酸铵为前躯体，采用有机-无机杂化法及后续的程序升温碳化法制备了纳米线β-Mo2C。通过机械混合法制备了镁改性的β-Mo2C催化剂并考察了其在CO加氢反应中的催化性能。结果表明，镁的改性对纳米线碳化钼的织构性质没有明显的影响，但在CO加氢反应中显著提高了CO转化率，且提高了烷烃的选择性及其链增长能力，表现为抑制了甲烷而促进了C2~C5烷烃的生成。但是Mg的添加对醇选择性及链增长能力影响不明显。
이1,6-기이알화목산안위전구체，채용유궤-무궤잡화법급후속적정서승온탄화법제비료납미선β-Mo2C。통과궤계혼합법제비료미개성적β-Mo2C최화제병고찰료기재CO가경반응중적최화성능。결과표명，미적개성대납미선탄화목적직구성질몰유명현적영향，단재CO가경반응중현저제고료CO전화솔，차제고료완경적선택성급기련증장능력，표현위억제료갑완이촉진료C2~C5완경적생성。단시Mg적첨가대순선택성급련증장능력영향불명현。
β-Mo2C nanowires were prepared by an organic-inorganic hybrid method with 1,6-hexamethylenediamine and ammonium molybdate as precursors, then modified with magnesium by mechanical mixing. The performances of the prepared Mg-doped nanostructuredβ-Mo2C catalysts for hydrogenation of CO were investigated. The results showed that the doping of MgO did not alter the textural properties of the catalysts, but increased CO conversation, improved the selectivity to hydrocarbons and promoted hydrocarbon chain growth, which resulted in that the formation of methane was inhibited and the yield of C2-C5 alkanes increased. However, the selectivity towards alcohols and the ability of alcohol chain growth almost unchanged.