Sodium Promoted FeZn@SiO2-C Catalysts for Sustainable Production of Low Olefins by CO2 Hydrogenation DOI Open Access
Zhijiang Ni,

Mingxing Cai,

Shiyu Zhong

et al.

Catalysts, Journal Year: 2023, Volume and Issue: 13(12), P. 1508 - 1508

Published: Dec. 12, 2023

A prepared FeZnNa@SiO2-C catalyst with graphitized carbon (C)-modified mesoporous SiO2 supports metal nanoparticles the sol–gel method. The effect of adding Na and Zn promoters as a dispersion on CO2 hydrogenation to low olefins was systematically studied. results showed that Zn–Na, combination, could promote absorption improved conversion rate CO2. an alkaline substance can improve more acidic CO2, which increase 59.03%. Meanwhile, addition secondary Fe-based catalysts form surface alloy alter adsorption activation C-O bonds, inhibit subsequent paraffins, facilitate reduction Fe2O3 formation active Fe5C2 species. species found in TEM XRD, selectivity target product 41.07%. deep inhibited, space–time yield (STY) raised again by inhibiting their hydrogenations, up 0.0436. However, corresponding STY did not infinitely doping, higher catalytic performance for be exhibited when doping reached 6.4%. Compared Fe@SiO2-C catalyst, Na- Zn-promoted catalysts, modified sol-gel method, used directly highly efficient thus has promising application prospect future.

Language: Английский

Understanding and Tuning the Effects of H2O on Catalytic CO and CO2 Hydrogenation DOI
Mingrui Wang, Guanghui Zhang, Hao Wang

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(21), P. 12006 - 12085

Published: Oct. 31, 2024

Catalytic COx (CO and CO2) hydrogenation to valued chemicals is one of the promising approaches address challenges in energy, environment, climate change. H2O an inevitable side product these reactions, where its existence effect are often ignored. In fact, significantly influences catalytic active centers, reaction mechanism, performance, preventing us from a definitive deep understanding on structure-performance relationship authentic catalysts. It necessary, although challenging, clarify provide practical strategies tune concentration distribution optimize influence. this review, we focus how induces structural evolution catalysts assists processes, as well efforts understand underlying mechanism. We summarize discuss some representative tuning for realizing rapid removal or local enrichment around catalysts, along with brief techno-economic analysis life cycle assessment. These fundamental understandings further extended reactions CO CO2 reduction under external field (light, electricity, plasma). also present suggestions prospects deciphering controlling applications.

Language: Английский

Citations

13

The electronic interaction of encapsulating graphene layers with FeCo alloy promotes efficient CO2 Hydrogenation to light olefins DOI
Miao Zhang, Limin Zhang, Mingrui Wang

et al.

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2025, Volume and Issue: 68, P. 366 - 375

Published: Jan. 1, 2025

Language: Английский

Citations

2

Highly Efficient CO2 Hydrogenation to Linear α-Olefins on FeZnK Catalysts with Balanced Zn–O–Fe Interfaces and Fe5C2 Species DOI
Jian Han, Wei Liu, Lina Zhang

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 3940 - 3954

Published: Feb. 20, 2025

Language: Английский

Citations

2

CO2 Hydrogenation to Hydrocarbons over Fe‐Based Catalysts: Status and Recent Developments DOI Creative Commons
Laura Kraußer, Qingxin Yang, Evgenii V. Kondratenko

et al.

ChemCatChem, Journal Year: 2024, Volume and Issue: 16(13)

Published: March 4, 2024

Abstract To control anthropogenic CO 2 emissions worldwide, it is necessary not only to align the chemical industry and energy sector with renewable resources but also implement large‐scale utilization of as a feedstock. The Fe‐catalyzed ‐modified Fischer‐Tropsch Synthesis (CO ‐FTS) one most promising options for efficient utilization, can be used synthesize desired higher hydrocarbons (C 2+ ), including lower olefins = ‐C 4 main building blocks industry, long‐chain 5+ which fuels. optimize catalyst process design purpose developing an economically viable industrial process, reaction mechanism factors controlling product selectivity need fully understood. This article discusses current state‐of‐the‐art in approaches making effective progress addressing these challenges.

Language: Английский

Citations

9

Construction of Highly Active Fe5C2–FeCo Interfacial Sites for Oriented Synthesis of Light Olefins from CO2 Hydrogenation DOI
Teng Li, Heng Zhao, Lisheng Guo

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 1112 - 1122

Published: Jan. 3, 2025

The hydrogenation of CO2 into high-value chemistry is seen as one the viable strategies for solving energy crisis future. Light olefins have attracted considerable attention basic feedstocks in industry. In this work, a series Fe–Co bimetallic active site catalysts were constructed by typical sol–gel strategy. synergistic regulation layout catalyst highly interfaces and exhibited high conversion (56.9%) CO2, low CO selectivity (3.6%), (40.5%) light olefins, remarkable yield (22.2%). results associated characterization analysis indicate that activity formed sites are fundamental reason olefins. introduction cobalt drive RWGS reaction forward (Le Chatelier's Principle), which further enhances conversion. addition, dynamic evolution physical phase structure, elemental composition valence, H2 adsorption ability, formation process during analyzed situ DRIFT spectra other characterizations, potential mechanism to proposed. This work provides an effective rational design strategy bimetals with promote efficient oriented synthesis

Language: Английский

Citations

1

Direct carbon dioxide hydrogenation to long-chain α-olefins over FeMnK catalysts DOI
Hao Ren, Haiyan Yang, Xin Jing

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 358, P. 124440 - 124440

Published: July 27, 2024

Language: Английский

Citations

6

Alkali metal promotion on Fe-Co-Ni trimetallic catalysts for CO2 hydrogenation to light olefins DOI

Yunxia Zhao,

Jiajun Ma,

Juli Yin

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: 657, P. 159783 - 159783

Published: Feb. 25, 2024

Language: Английский

Citations

5

Ternary System with Sandwich Configuration Facilitates Aromatic Production from CO2 Hydrogenation DOI
Jiaming Liang, Hengyang Liu,

Bowei Meng

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 357, P. 124305 - 124305

Published: June 24, 2024

Language: Английский

Citations

4

An efficient catalyst derived from FeMn-BTC for CO2 hydrogenation to α-olefins DOI
Zheng Huang, Gang Li,

Anfeng Peng

et al.

Fuel, Journal Year: 2025, Volume and Issue: 397, P. 135401 - 135401

Published: April 16, 2025

Language: Английский

Citations

0

A theoretical study of the role of K on the reverse water-gas shift reaction on Hägg carbide DOI

Xianxuan Ren,

Rozemarijn D.E. Krösschell, Zhuowu Men

et al.

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2025, Volume and Issue: 72, P. 289 - 300

Published: May 1, 2025

Language: Английский

Citations

0