NiB非晶合金的制备及其催化噻吩加氢脱硫性能
何萍 , 邓书平 , 高爽 , 潘懿 , 陈晓陆 , 张京京
现代化工 ›› 2025, Vol. 45 ›› Issue (3) : 137 -140.
NiB非晶合金的制备及其催化噻吩加氢脱硫性能
Preparation of amorphous NiB alloy and its catalytic performance for thiophene hydrodesulfurization
采用反相微乳液法和化学还原法制备了4种NiB非晶态合金和负载型NiB非晶态合金催化剂,通过XRD、H2程序升温脱附(H2-TPD)、XPS、SEM、TEM、电感耦合等离子体发射光谱(ICP-OES)、N2吸附-脱附对催化剂进行表征,并考察了噻吩加氢脱硫反应中催化剂的催化性能。结果表明,反相微乳液法制备的NiB-RM催化剂能有效抑制颗粒团聚,更利于保持Ni物种以Ni0的形态存在,活性中心数量较多,催化活性更高。负载型非晶态合金催化剂中NiB/HZSM-5-RM催化剂中Ni质量分数较高,且多数以Ni0的形态存在,尽管比表面积低于NiB/HMCM-22-RM,仍具有较高的催化活性,噻吩转化率达到94.8%。
Four kinds of amorphous NiB alloy and supported amorphous NiB alloy catalysts are prepared through a reverse-phase microemulsion method and a chemical reduction method,respectively,and characterized by means of XRD,H2-TPD,XPS,SEM,TEM,ICP-OES and N2 adsorption-desorption.The catalytic performance of the catalysts in thiophene hydrodesulfurization is tested.Results show that NiB-RM catalyst prepared by reverse-phase microemulsion method can effectively inhibit particle agglomeration,which is more conducive to maintaining the existence of Ni species in the form of Ni0,with a larger number of active centers and higher catalytic activity.Among the supported amorphous alloy catalysts,NiB/HZSM-5-RM catalyst contains more Ni,and most of them exist in the form of Ni0.Although the specific surface area of NiB/HZSM-5-RM is lower than that of NiB/HMCM-22-RM,it still has a high catalytic activity,catalyzing thiophene to reach a conversion rate of 94.8%.
amorphous alloy / microemulsion / hydrodesulfurization / thiophene
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
张军, 李莉莉, 王修才, |
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
亓雪, 石秋杰, 谌伟庆, |
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
张荣斌, 李凤仪, 杨美华. 载体γ-Al2O3和钐对非晶态NiB合金热稳定性的影响[J]. 物理化学学报, 2003, 19(10):970-973. |
| [20] |
|
辽宁省区域创新发展联合基金(2022-YKLH-11)
辽宁省教育厅科学研究经费项目(LJKZ1203)
辽宁省自然科学基金联合基金(面上资助计划项目)(2023-MSLH-322)
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