CAJ | 학술논문

为了研究载体性质对Ru负载型催化剂的CO2加氢合成甲酸反应性能的影响，制备了以Al2 O3纳米棒和γ-Al2 O3为载体的一系列Ru基催化剂，采用透射电镜（ TEM）、X射线衍射（ XRD）、D2／OH 交换和程序升温还原（ H2-TPR）等方法详细表征催化剂的性质，并考察CO2加氢制甲酸的反应性能。结果表明：与传统Ru／Al2 O3催化剂相比，以Al2 O3纳米棒为载体时，RuOx 物种在载体表面的分散程度高，Al2 O3纳米棒的表面OH数目多，有利于提高催化剂的反应活性，另外当Ru在Al2 O3纳米棒上的负载量（质量分数）为1％时，甲酸产量最高可以达到11．7 mmol／h。
위료연구재체성질대Ru부재형최화제적CO2가경합성갑산반응성능적영향，제비료이Al2 O3납미봉화γ-Al2 O3위재체적일계렬Ru기최화제，채용투사전경（ TEM）、X사선연사（ XRD）、D2／OH 교환화정서승온환원（ H2-TPR）등방법상세표정최화제적성질，병고찰CO2가경제갑산적반응성능。결과표명：여전통Ru／Al2 O3최화제상비，이Al2 O3납미봉위재체시，RuOx 물충재재체표면적분산정도고，Al2 O3납미봉적표면OH수목다，유리우제고최화제적반응활성，령외당Ru재Al2 O3납미봉상적부재량（질량분수）위1％시，갑산산량최고가이체도11．7 mmol／h。
For studying the effects of supports of Ru-based catalyst on the performance of CO 2 hydrogenation to formic acid reaction, a series of catalysts made of Ru supported on γ-Al2 O3 and Al2 O3 nanorods was prepared .The TEM, XRD, D2/OH exchange and H 2-TPR were applied to characterize the properties of catalysts .The catalysts on the performance of CO 2 hydrogenation to formic acid were also tested .The results show that compared with the traditional Ru/Al2 O3 catalyst, the Al2 O3 nanorods as supports lead to the highly dispersed RuO x species and abundant hydroxyl groups , which appears to be more effective for reaction .Among these catalysts , Al2 O3 nanorods supported 1.0%(mass fraction) Ru catalyst gives the highest activity for hydrogenation CO 2 reaction with the yield of formic acid up to 11 .7 mmol /h.