Synergistic promotions between CO2 capture and in-situ conversion on Ni-CaO composite catalyst

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Фев. 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.

Язык: Английский

---

Reactive Capture of CO₂: Opportunities and Challenges

ACS Catalysis, Год журнала: 2022, Номер 13(1), С. 766 - 784

Опубликована: Дек. 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.

Язык: Английский

---

Green transformation of CO₂ to ethanol using water and sunlight by the combined effect of naturally abundant red phosphorus and Bi₂MoO₆

Energy & Environmental Science, Год журнала: 2022, Номер 15(5), С. 1967 - 1976

Опубликована: Янв. 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.

Язык: Английский

---

CO2 electroreduction to multicarbon products from carbonate capture liquid

Joule, Год журнала: 2023, Номер 7(6), С. 1277 - 1288

Опубликована: Май 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.

Язык: Английский

---

Recent advances in CO₂ capture and reduction

Nanoscale, Год журнала: 2022, Номер 14(33), С. 11869 - 11891

Опубликована: Янв. 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.

Язык: Английский

---

Homogeneous Hydrogenation of CO₂ and CO to Methanol: The Renaissance of Low‐Temperature Catalysis in the Context of the Methanol Economy

Angewandte Chemie International Edition, Год журнала: 2022, Номер 61(42)

Опубликована: Авг. 3, 2022

The traditional economy based on carbon-intensive fuels and materials has led to an exponential rise in anthropogenic CO

Язык: Английский

---

CO2 capture and mineral storage: State of the art and future challenges

Renewable and Sustainable Energy Reviews, Год журнала: 2023, Номер 189, С. 113908 - 113908

Опубликована: Окт. 27, 2023

Язык: Английский

---

Reactive CO2 capture: A path forward for process integration in carbon management

Joule, Год журнала: 2023, Номер 7(4), С. 631 - 651

Опубликована: Апрель 1, 2023

Язык: Английский

---

CO2 capture and in-situ conversion to organic molecules

Journal of CO2 Utilization, Год журнала: 2024, Номер 82, С. 102753 - 102753

Опубликована: Март 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.

Язык: Английский

---

Catalytic Conversion of Carbon Dioxide to Propylene Carbonate: Catalyst Design and Industrialization Progress

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 1305 - 1340

Опубликована: Янв. 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.

Язык: Английский

---