除氧
钼
碳化物
催化作用
氮化物
磷化物
加氢脱氮
过渡金属
材料科学
无机化学
硫黄
苯并噻吩
加氢脱硫
化学
有机化学
噻吩
图层(电子)
作者
Uliana Akhmetzyanova,Zdeněk Tišler,Nikita Sharkov,Lenka Skuhrovcová,Lenka Pelíšková,Oleg Kikhtyanin,Päivi Mäki‐Arvela,Maksym Opanasenko,Markus Peurla,Dmitry Yu. Murzin
标识
DOI:10.1002/slct.201901634
摘要
Abstract Transition metal nitrides, carbides and phosphides have the potential to replace the expensive and hazardous catalysts typically used for the conversion of fatty acids. However, there has been little research on the influence of treatment conditions and precursor nature on the properties of such catalytic systems. To better understand these dependencies, we synthesized a number of Mo catalysts by temperature‐programmed reduction (700‐900 °C; CH 4 /N 2 , N 2 /H 2 ) using ammonium heptamolybdate, diammonium phosphate and hexamethylenetetramine (HMT) as Mo, C, N and P sources. The presence of HMT in the precursor mixtures ensured the synthesis of pure phase Mo 2 C, Mo 2 N and MoP. Catalytic activity in the (hydro)deoxygenation of stearic acid (240 min; 360 °C; 50 bar of H 2 ) decreased in the following order: Mo 2 C>Mo 2 N>MoP. However, all of the studied Mo‐based catalysts showed good deoxygenation efficiency and, thus, represent excellent alternatives to traditional noble and sulfur‐containing catalysts.
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