Fe-decorated hierarchical molybdenum carbide for direct conversion of CO2 into ethylene: Tailoring activity and stability

被引：19

作者：

Raghav, Himanshu ^{[1
,2
]}

Konathala, L. N. Siva Kumar ^{[3
]}

Mishra, Neeraj ^{[4
]}

Joshi, Bhanu ^{[1
,2
]}

Goyal, Reena ^{[5
,6
]}

Agrawal, Ankit ^{[1
,2
]}

Sarkar, Bipul ^{[1
,2
]}

机构：

[1] CSIR Indian Inst Petr, Upstream & Wax Rheol Div, Catalyt Depolymerizat Area, Haridwar Rd, Dehra Dun 248005, Uttarakhand, India

[2] Acad Sci & Innovat Res AcSIR, CSIR HRDC Campus,Joggers Rd,Kamla Nehru Nagar, Ghaziabad 201002, India

[3] CSIR Indian Inst Petr, Analyt Sci Div, Haridwar Rd, Dehra Dun 248005, Uttarakhand, India

[4] Indian Inst Technol, Dept Energy Sci & Engn, Mumbai 400076, Maharashtra, India

[5] CSIR Indian Inst Petr, Light Feedstock Div, Nano Catalysis Area, Haridwar Rd, Dehra Dun 248005, Uttarakhand, India

[6] Indian Inst Technol Roorkee, Dept Chem Engn, Roorkee 247667, Uttarakhand, India

来源：

JOURNAL OF CO2 UTILIZATION | 2021年 / 50卷

关键词：

Silica hard template; Mesoporous Mo2C; Electronic structure; CO2; hydrogenation; Light olefin; LOWER OLEFINS; HYDROGEN EVOLUTION; HIGH-SELECTIVITY; STEAM CRACKING; SYNTHESIS GAS; ENERGY USE; CATALYSTS; HYDROCARBONS; METHANOL; COBALT;

D O I：

10.1016/j.jcou.2021.101607

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In the past few years, the production of olefins from various resources, particularly from carbon-rich sources, such as crude oil, natural gas, coal, and biomass, has received considerable attention. This study presented the production of light olefins by conducting CO2 hydrogenation through modified Fischer-Tropsch synthesis (M-FTS) by employing a Fe-decorated large surface molybdenum carbide catalyst. A novel strategy was adopted for the synthesis of large surface mesoporous molybdenum carbide by using a hard template. A theoretical loading limit of Fe nanoparticles, calculated using density functional theory, was decorated over beta-Mo2C through simple wetness impregnation. The trans isomers of Fe-doped beta-Mo2C exhibited higher symmetry and were energetically slightly more stable for the hydrogenation of CO2 into light olefins than the cis isomers. Under the optimized condition, Fe(0.5)-Mo2C showed 7.3% CO2 conversion with 79.4% C-2(=) olefins.

引用

页数：10

共 58 条

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