Advanced zeolite and ordered mesoporous silica-based catalysts for the conversion of CO₂to chemicals and fuels

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(5), P. 1773 - 1946

Published: Jan. 1, 2023

This review summarizes the use of zeolites and ordered mesoporous silica-based catalysts, development new processes technologies to boost conversion CO 2 into chemicals fuels.

Language: Английский

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Advances in Selectivity Control for Fischer–Tropsch Synthesis to Fuels and Chemicals with High Carbon Efficiency

ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(19), P. 12092 - 12112

Published: Sept. 21, 2022

Fischer–Tropsch synthesis (FTS) is a versatile technology to produce high-quality fuels and key building-block chemicals from syngas derived nonpetroleum carbon resources such as coal, natural gas, shale biomass, solid waste, even CO2. However, the product selectivity of FTS always limited by Anderson–Schulz–Flory (ASF) distribution, scientific problems including control, energy saving, CO2 emission reduction still challenge current technology. Herein, we review recent significant progress in field obtain specific target products fuels, olefins, aromatics, higher alcohols with high selectivity. These achievements are enabled developing highly efficient catalysts controlled reaction pathway based on an integrated process. The structural nature catalytic active sites established structure–performance relationships clarified. Moreover, specially focus utilization efficiency, efforts tune preferential formation value-added strategies reduce summarized. challenges perspectives for future development efficiency also discussed.

Language: Английский

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Efficient solvent- and hydrogen-free upcycling of high-density polyethylene into separable cyclic hydrocarbons

Nature Nanotechnology, Journal Year: 2023, Volume and Issue: 18(7), P. 772 - 779

Published: June 26, 2023

Language: Английский

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Recent advances in CO₂ capture and reduction

Nanoscale, Journal Year: 2022, Volume and Issue: 14(33), P. 11869 - 11891

Published: Jan. 1, 2022

Given the continuous and excessive CO2 emission into atmosphere from anthropomorphic activities, there is now a growing demand for negative carbon technologies, which requires efficient capture conversion of to value-added chemicals. This review highlights recent advances in chemistry processes. It first summarizes various adsorbent materials that have been developed capture, including hydroxide-, amine-, metal organic framework-based adsorbents. then reviews efforts devoted two types reaction: thermochemical hydrogenation electrochemical reduction. While thermal reactions are often accomplished presence H2, realized by direct use electricity can be renewably generated solar wind power. The key success these develop catalysts rationally engineer catalyst-electrolyte interfaces. further covers studies integrating processes so energy efficiency overall optimized. Lastly, briefs some new approaches future directions coupling air technologies as solutions sustainability.

Language: Английский

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Engineering nanoscale H supply chain to accelerate methanol synthesis on ZnZrOx

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Feb. 13, 2023

Metal promotion is the most widely adopted strategy for enhancing hydrogenation functionality of an oxide catalyst. Typically, metal nanoparticles or dopants are located directly on catalyst surface to create interfacial synergy with active sites oxide, but enhancement effect may be compromised by insufficient hydrogen delivery these sites. Here, we introduce a promote ZnZrOx methanol synthesis incorporating activation and functions through optimized integration Pd supported carbon nanotube (Pd/CNT). The CNT in Pd/CNT + system delivers activated broad area surface, factor 10 compared conventional Pd-promoted catalyst, which only transfers Pd-adjacent In CO2 methanol, exhibits drastically boosted activity-the highest among reported ZnZrOx-based catalysts-and excellent stability over 600 h stream test, showing potential practical implementation.

Language: Английский

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Elucidating the structural evolution of highly efficient Co–Fe bimetallic catalysts for the hydrogenation of CO2 into olefins

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 328, P. 122476 - 122476

Published: Feb. 16, 2023

Language: Английский

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Modulating Electronic Interaction over Zr–ZnO Catalysts to Enhance CO₂ Hydrogenation to Methanol

ACS Catalysis, Journal Year: 2023, Volume and Issue: 14(1), P. 508 - 521

Published: Dec. 22, 2023

ZnZrOx catalysts have been widely used to catalyze CO2 hydrogenation methanol, the catalytic characteristics of active sites being closely related electronic interaction between components. However, Zn and Zr for is not clear. Herein, we investigate impact on behavior catalysts. XPS results DFT calculations demonstrate that there an with electron transfer from Zn, resulting in formation electron-rich sites. Combined H2-TPD, propylene reaction, H2–D2 exchange experiments, situ DRIFTS, solid-state 1H NMR results, it evident more conductive accelerate H2 dissociation form hydride species, likely due Meanwhile, such transfers can promote adsorption bidentate bicarbonate carbonate species also boost their formate methoxy assistance species. The experimental show favorable enhance CH3OH selectivity yield, indicating dominant enhancing CH3OH. This work reveals pivotal role hydrogenation, which beneficial rationally design optimize required

Language: Английский

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CO2 fixation into carbon nanofibres using electrochemical–thermochemical tandem catalysis

Nature Catalysis, Journal Year: 2024, Volume and Issue: 7(1), P. 98 - 109

Published: Jan. 11, 2024

Language: Английский

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Selectivity control in CO2 hydrogenation to one-carbon products

Chem, Journal Year: 2024, Volume and Issue: 10(4), P. 1084 - 1117

Published: March 13, 2024

Language: Английский

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Review of Iron-Based Catalysts for Carbon Dioxide Fischer–Tropsch Synthesis

Transactions of Tianjin University, Journal Year: 2024, Volume and Issue: 30(2), P. 178 - 197

Published: April 1, 2024

Abstract Capturing and utilizing CO 2 from the production process is key to solving excessive emission problem. hydrogenation with green hydrogen produce olefins an effective promising way utilize valuable chemicals. The can be produced by through two routes, i.e., -FTS (carbon dioxide Fischer–Tropsch synthesis) MeOH (methanol-mediated), among which has significant advantages over in practical applications due its relatively high conversion low energy consumption potentials. However, faces challenges of difficult activation selectivity. Iron-based catalysts are for their dual functionality catalyzing RWGS CO-FTS reactions. This review summarizes recent progress on iron-based via FTS route analyzes catalyst optimization perspectives additives, active sites, reaction mechanisms. Furthermore, we also outline principles rational design high-performance catalysts.

Language: Английский

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