Highly-Dispersed Zinc Species on Zeolites for the Continuous and Selective Dehydrogenation of Ethane with CO2 as a Soft Oxidant DOI Creative Commons
Jiaxu Liu, Ning He, Zhenmei Zhang

et al.

ACS Catalysis, Journal Year: 2021, Volume and Issue: 11(5), P. 2819 - 2830

Published: Feb. 16, 2021

We report herein the preparation, characterization, and catalytic performance of a series heterogeneous catalysts featuring highly dispersed zinc sites on zeolitic SSZ-13 ZSM-5 frameworks. The materials are evaluated in CO2-assisted oxidative ethane dehydrogenation, very important reaction for synthesis platform chemicals. In particular, we find that Zn2.92/SSZ-13 exhibits high reactivity conversion C2H6 CO2 ethene selectivity. line with experimental results, show selective character catalyst is due to characteristic compositional structure support its topology can effectively confine molecules. An in-depth molecular analysis via operando studies DFT calculations shows rate-limiting step second C–H bond dissociation give C2H4. addition reduces energy barrier this step, favoring desorption C2H4 while limiting byproduct formation. Overall, work demonstrates breakthrough potential made species zeolites relevant transformations.

Language: Английский

Synergistic promotions between CO2 capture and in-situ conversion on Ni-CaO composite catalyst DOI Creative Commons
Bin Shao, Zhi-Qiang Wang, Xue‐Qing Gong

et al.

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

Published: Feb. 22, 2023

The integrated CO2 capture and conversion (iCCC) technology has been booming as a promising cost-effective approach for Carbon Neutrality. However, the lack of long-sought molecular consensus about synergistic effect between adsorption in-situ catalytic reaction hinders its development. Herein, we illustrate promotions through constructing consecutive high-temperature Calcium-looping dry reforming methane processes. With systematic experimental measurements density functional theory calculations, reveal that pathways reduction carbonate dehydrogenation CH4 can be interactively facilitated by participation intermediates produced in each process on supported Ni-CaO composite catalyst. Specifically, adsorptive/catalytic interface, which is controlled balancing loading size Ni nanoparticles porous CaO, plays an essential role ultra-high conversions 96.5% 96.0% at 650 °C, respectively.

Language: Английский

Citations

105
Green transformation of CO2 to ethanol using water and sunlight by the combined effect of naturally abundant red phosphorus and Bi2MoO6 DOI
Risov Das, Kousik Das, Bitan Ray

et al.

Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(5), P. 1967 - 1976

Published: Jan. 1, 2022

A novel type-II composite heterostructure obtained by combining earth-abundant, non-toxic, cost-effective red phosphorus and Bi 2 MoO 6 selectively converts CO to ethanol using sunlight water.

Language: Английский

Citations

88
Reactive Capture of CO2: Opportunities and Challenges DOI Creative Commons

Rachel E. Siegel,

Santanu Pattanayak,

Louise A. Berben

et al.

ACS Catalysis, Journal Year: 2022, Volume and Issue: 13(1), P. 766 - 784

Published: Dec. 27, 2022

Reactive capture of CO2 (RCC) refers to the process integration with conversion captured into a product. The RCC approach does not include step where is released (thermally) from agent and thus has potential provide significant energy savings relative traditional release processes. This Perspective highlights just selection prior contributions chemistry, thermal RCC, electrochemically driven RCC. Opportunities reduction are highlighted, challenges for future development mentioned. will require multidisciplinary across industry, chemical engineering, advanced manufacturing, this was written view bridge some these areas.

Language: Английский

Citations

85
CO2 electroreduction to multicarbon products from carbonate capture liquid DOI Creative Commons
Geonhui Lee, Armin Sedighian Rasouli, Byoung‐Hoon Lee

et al.

Joule, Journal Year: 2023, Volume and Issue: 7(6), P. 1277 - 1288

Published: May 26, 2023

Alkali hydroxide systems capture CO2 as carbonate; however, generating a pure stream requires significant energy input, typically from thermal cycling to 900°C. What is more, the subsequent valorization of gas-phase into products presents additional requirements and system complexities, including managing formation (bi)carbonate in an electrolyte separating unreacted downstream. Here, we report direct electrochemical conversion CO2, captured form carbonate, multicarbon (C2+) products. Using interposer Cu/CoPc-CNTs electrocatalyst, achieve 47% C2+ Faradaic efficiency at 300 mA cm−2 full cell voltage 4.1 V. We 56 wt % C2H4 no detectable C1 gas product stream: CO, CH4, combined total below 0.9 (0.1 vol %). This approach obviates need for regenerate lost issue seen prior CO2-to-C2+ reports.

Language: Английский

Citations

77
Recent advances in CO2 capture and reduction DOI
Kecheng Wei, Huanqin Guan, Qiang Luo

et al.

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

Citations

73
CO2 capture and mineral storage: State of the art and future challenges DOI Open Access
Huachen Liu, Hao Lu, Heng Hu

et al.

Renewable and Sustainable Energy Reviews, Journal Year: 2023, Volume and Issue: 189, P. 113908 - 113908

Published: Oct. 27, 2023

Language: Английский

Citations

64
Reactive CO2 capture: A path forward for process integration in carbon management DOI Creative Commons

Megan C. Freyman,

Zhe Huang, Dwarakanath Ravikumar

et al.

Joule, Journal Year: 2023, Volume and Issue: 7(4), P. 631 - 651

Published: April 1, 2023

Language: Английский

Citations

49
CO2 capture and in-situ conversion to organic molecules DOI Creative Commons

Zhao Lan,

Hai Hu,

An‐Guo Wu

et al.

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 82, P. 102753 - 102753

Published: March 30, 2024

To address the CO2 accumulation in atmosphere, various initiatives have been proposed, among which capture and utilization (CCU) is regarded as an appealing strategy to reconcile carbon emission resource utilization. Especially, integrated (ICCU), i.e. performing in-situ conversion can circumvent energy-intensive desorption step thus facilitate establishing step- energy-efficient process, rendering at mild conditions particularly low pressure due substantial activation upon uptake. However, not simple add-up of these two processes. Its successful implementation relies on harmonization reagents, substrates corresponding catalysts. By far, tremendous efforts made this field a plethora reagents including inorganic bases, organic ionic liquids carbonaceous materials utilized protocols such hydrogenation, cycloaddition, carboxylative cyclization etc. explored for captured CO2. As result, valuable products containing methanol, methane, carbonates, carbamates, oxazolidinones, ureas, quinazolinone obtained from more importantly, chemistry theory also enriched via investigating structure reactivity reactions. In review, we summarize progress based reaction types absorbents. It's hoped that review shed light design inspire further development field.

Language: Английский

Citations

18
Catalytic Conversion of Carbon Dioxide to Propylene Carbonate: Catalyst Design and Industrialization Progress DOI
Jun Wu,

Yaxuan Du,

Xiejun Wang

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 1305 - 1340

Published: Jan. 7, 2025

Converting CO2 into valuable chemicals is an effective way to alleviate the high level of global CO2. The cycloaddition reaction and propylene oxide (PO) has atomic economy advantage environmental friendliness compared with traditional phosgene method carbonate (PC). Due chemical inertness CO2, catalysts are needed make proceed smoothly. Through rational design, a multifunctional catalyst that combines activation sites attack PO adsorption can be formed. At same time, use harmful substances reduced by making catalytic process more environmentally friendly. In this work, we discuss research progress synthesis PC from PO. Starting mechanism, system summarized perspective design. homogeneous catalysts, focus on effect composition performance. heterogeneous heterogenization (preparation methods), including supported, confined, polymerized catalysts. addition, promising photocatalysis biomass catalysis especially introduced. Finally, in order experimental results move toward industrial production, several problems existing industrialization discussed, production equipment, influence source, product/catalyst separation.

Language: Английский

Citations

2
Recent Progress with Pincer Transition Metal Catalysts for Sustainability DOI Open Access
Luca Piccirilli, Danielle L. J. Pinheiro, Martin Nielsen

et al.

Catalysts, Journal Year: 2020, Volume and Issue: 10(7), P. 773 - 773

Published: July 11, 2020

Our planet urgently needs sustainable solutions to alleviate the anthropogenic global warming and climate change. Homogeneous catalysis has potential play a fundamental role in this process, providing novel, efficient, at same time eco-friendly routes for both chemicals energy production. In particular, pincer-type ligation shows promising properties terms of long-term stability selectivity, as well allowing mild reaction conditions low catalyst loading. Indeed, pincer complexes have been applied plethora chemical processes, such hydrogen release, CO2 capture conversion, N2 fixation, biomass valorization synthesis high-value fuels. work, we show main advances last five years use transition metal key catalytic processes aiming more

Language: Английский

Citations

97