通过与自还原框架结合增强多金属氧酸盐的氧化脱硫作用

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中文摘要：由于对燃油硫含量的控制日益严格,氧化脱硫(ODS)作为一种前景广阔的脱硫技术需要不断发展.本工作将构建多孔结构、提升磷钼酸(PMo)的负载量、提高两亲性以及利用载体的还原框架提高PMo的本征活性等策略整合实施,成功制备了具有出色ODS催化能力的PMo@PAF-54材料.在催化剂制备过程中,PAF-54不是简单地作为载体与PMo发生物理的结合,更是与PMo发生了电子转移,生成了具有更优催化活性的Mo5+.PAF-54的存在使PMo的催化活性得到了质的飞跃,实现了快速且高效的脱硫.我们还发现其他富氮多孔有机聚合物也可在负载过程中还原PMo中的部分Mo6+,并对其反应机理进行了探索研究.本工作为设计高效的ODS催化剂提供了一个切实可行的策略.

外文标题：Enhancing oxidative desulfurization of polyoxometalate by integrating with a self-reductive framework

外文摘要：With the strict control of sulfur content in fuels,oxidative desulfurization(ODS),a promising desulphuriza-tion technology,needs to be continuously developed.In this study,we integrated multiple approaches(fabricating a por-ous structure,increasing phosphomolybdic acid(PMo)load-ing,improving amphiphilicity,and enhancing the intrinsic activity of PMo using a reductive framework)into PAF-54 carriers to improve ODS catalytic ability.The catalytic per-formance suggested that PAF-54 was not simply used as a carrier for PMo by physical integration.During the binding process,electron transfer between PAF-54 and PMo formed Mo5+with superior catalytic activity.Owing to the presence of PAF-54,the catalytic activity of PMo as the active component qualitatively improved to achieve rapid and efficient de-sulfurization.More importantly,we found that other nitro-gen-rich porous organic polymers can also reduce some of Mo6+in PMo during loading,and its formation mechanism was investigated.This work provides a feasible strategy for designing highly efficient DOS catalysts.

外文关键词：

PAF-54self-reductionoxidative desulfurizationMo5+

作者：

林泳慧、赵晓君、常深圳、张艺馨、甘乐天、田宇阳、潘勤鹤、朱广山

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作者单位：

Key Laboratory of Advanced Materials of Tropical Island Resources,Ministry of Education,School of Chemistry and Chemical Engineering,Hainan University,Haikou 570228,China

Faculty of Chemistry,Northeast Normal University,Changchun 130024,China

关键词：

PAF-54 self-reduction oxidative desulfurization Mo5+

基金：

Hainan Provincial Natural Science Foundation of ChinaNational Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaInnovation Platform for Academicians of Hainan ProvinceSpecific Research Fund of the Innovation Platform for Academicians of Hainan ProvinceInternational Science & Technology Cooperation Program of Hainan Province

项目编号：

220MS0052022YFB38059022236101722075040YSPTZX202321GHYF2022006

出版年：

2024

DOI：

10.1007/s40843-023-2873-y

中国科学:材料科学(英文)

CSTPCD

ISSN：

年,卷(期)：2024.67(9)