Focus on Catalysts, Journal Year: 2023, Volume and Issue: 2023(11), P. 1 - 2
Published: Nov. 1, 2023
Language: Английский
Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(16), P. 9457 - 9579
Published: Aug. 16, 2024
The large production volumes of commodity polyolefins (specifically, polyethylene, polypropylene, polystyrene, and poly(vinyl chloride)), in conjunction with their low unit values multitude short-term uses, have resulted a significant pressing waste management challenge. Only small fraction these is currently mechanically recycled, the rest being incinerated, accumulating landfills, or leaking into natural environment. Since are energy-rich materials, there considerable interest recouping some chemical value while simultaneously motivating more responsible end-of-life management. An emerging strategy catalytic depolymerization, which portion C-C bonds polyolefin backbone broken assistance catalyst and, cases, additional molecule reagents. When products molecules materials higher own right, as feedstocks, process called upcycling. This review summarizes recent progress for four major upcycling strategies: hydrogenolysis, (hydro)cracking, tandem processes involving metathesis, selective oxidation. Key considerations include macromolecular reaction mechanisms relative to mechanisms, design transformations, effect conditions on product selectivity. Metrics describing critically evaluated, an outlook future advances described.
Language: Английский
Citations
26
ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(9), P. 6470 - 6487
Published: April 12, 2024
Solar-assisted CO2 conversion into fuels and chemical products involves a range of technologies aimed at driving industrial decarbonization methods. In this work, we report on the development series multifunctional metal-organic frameworks (MOFs) based nitro- or amino-functionalized UiO-66(M) (M: Zr Zr/Ti) supported RuOx NPs as photocatalysts, having different energy band level diagrams, for hydrogenation under simulated concentrated sunlight irradiation. RuOx(1 wt %; 2.2 ± 0.9 nm)@UiO-66(Zr/Ti)-NO2 was found to be reusable photocatalyst, selective methanation (5.03 mmol g-1 after 22 h;, apparent quantum yield 350, 400, 600 nm 1.67, 0.25, 0.01%, respectively), show about 3-6 times activity compared with previous investigations. The photocatalysts were characterized by advanced spectroscopic techniques like femto- nanosecond transient absorption, spin electron resonance, photoluminescence spectroscopies together (photo)electrochemical measurements. photocatalytic mechanism assessed operando FTIR spectroscopy. results indicate that most active photocatalyst operates dual photochemical photothermal mechanism. This investigation shows potential MOFs solar-driven recycling.
Language: Английский
Citations
10
Renewable and Sustainable Energy Reviews, Journal Year: 2024, Volume and Issue: 210, P. 115196 - 115196
Published: Dec. 18, 2024
Language: Английский
Citations
8
ACS Materials Au, Journal Year: 2025, Volume and Issue: 5(2), P. 385 - 396
Published: Jan. 14, 2025
Nonthermal plasma (NTP) has opened unexplored routes for small-scale, decentralized ammonia production. However, understanding the formation pathways when employing NTP-driven processes is challenging due to complex nature of process. In this work, we report effects morphology and textural properties on Herein, explore mesoporous macroporous regimes in silica. Performance silica with a gyroid displays highest production rate 160.7 μmol/min·g-cat at power 15 W. The findings from work provide insights into tailoring porous structures powered by NTP. This presents significant progress development earth-abundant materials, achieved their structure improve efficiency
Language: Английский
Citations
1
Catalysis Today, Journal Year: 2023, Volume and Issue: 426, P. 114365 - 114365
Published: Sept. 9, 2023
Zeolites today are a unique and highly successful class of catalytic materials, but their role in future low-carbon scenarios comes into question. This perspective article summarises the authors' joint view on zeolite chemistry's direction for applications to stimulate discussion identifying pillars which scientific community should focus. Particular challenges discussed here include i) our synthesis focused new structures with optimised textural properties design catalysts precise control location active sites; ii) current, mostly industrial, requests zeolitic catalysts; iii) emerging zeolites play key role; last not least iv) opportunities types microporous solids. Although some these rather challenging, many barriers overcome, we suggest fostering research directions as maintaining crucial catalysts. Discussion science technology is organised consideration three possible scenarios: (i) BAU (business-as-usual) scenario (ii) two advanced scenarios, differ terms degree circularity (low high, LC HC respectively), (iii) level substitution fossil fuels alternative energy carbon sources. Trends characterising impact provide readers elements, tools clues identify priorities application
Language: Английский
Citations
17
ChemCatChem, Journal Year: 2024, Volume and Issue: 16(24)
Published: Sept. 20, 2024
Abstract The CO 2 methanation reaction, or Sabatier is experiencing renewed interest in the context of large‐scale recycling point emissions, leading to power‐to‐gas technology. reaction represents a flexible route transform into methane by hydrogenation with (green) dihydrogen. This exothermic transformation takes place at reasonable rate temperatures above 200 °C and directed targeted product low temperatures. nevertheless remains kinetically limited due chemical stability high bond dissociation energy for C═O . Therefore, current urgent demand development catalysts associated processes superior activity activation critical review aims overview state art this low‐temperature technology using thermal, plasma photo‐assisted catalysis. We summarize research advances around methanation, focusing on catalyst formulations (metal, supports promoters), mechanisms suitable processes. discuss each these aspects identify main challenges opportunities temperature (≤200 °C) methanation.
Language: Английский
Citations
7
Processes, Journal Year: 2023, Volume and Issue: 11(9), P. 2647 - 2647
Published: Sept. 4, 2023
Given the urgency to combat climate change and ensure environmental sustainability, this review examines transition net-zero emissions in chemical process industries. It addresses core areas of carbon reduction, efficient energy use, sustainable practices. What is new, however, that it focuses on cutting-edge technologies such as biomass utilization, biotechnology applications, waste management strategies are key drivers transition. In particular, study unique challenges faced by industries cement manufacturing highlights need for innovative solutions effectively reduce their footprint. role hydrogen a clean fuel at heart revolutionizing sectors, pointing way cleaner greener operations. addition, manuscript explores immense importance European Green Deal Sustainable Development Goals (SDGs) industry. These initiatives provide clear roadmap framework advancing driving innovation, reducing industry’s impact, notable contribution existing body knowledge. Ultimately, alignment with SDGs can bring numerous benefits industry, increasing its competitiveness, promoting societal well-being, supporting cross-sector collaboration achieve shared sustainability goals. By highlighting novelty integrating technologies, addressing industrial challenges, positioning global initiatives, report offers valuable insights guide transformative path future.
Language: Английский
Citations
15
Catalysis Today, Journal Year: 2025, Volume and Issue: unknown, P. 115185 - 115185
Published: Jan. 1, 2025
Language: Английский
Citations
0
The Chemical Record, Journal Year: 2025, Volume and Issue: unknown
Published: March 3, 2025
Abstract Electrocatalysis is a crucial technology that will enable future low‐carbon chemical production and energy beyond fossil fuels. Notwithstanding the intense growing research in area, potentialities of field are largely unexplored. We provide case examples discuss emerging possibilities have still not been investigated enough but necessary to exploit this potential e‐chemistry. Starting from defining trends setting scene, as well clarifying difference between electrochemistry electrocatalysis, some elements vision foster innovation discussed. The aim stimulate discussion reflection rather than review state‐of‐the‐art. Aspects discussed regard i) passing electro photoelectrocatalytic approaches, ii) making chemicals air, iii) exploitation both anodic cathodic reactions, tandem/paired electrocatalytic iv) for selective oxidation mediated synthesis. Priorities strategies an e‐chemistry Intensifying these directions extending still‐too‐limited current including modelling design, effort accelerate realisation distributed
Language: Английский
Citations
0
Deleted Journal, Journal Year: 2025, Volume and Issue: 7(4)
Published: March 27, 2025
Non-thermal plasma (NTP) catalysis has emerged as a transformative technology for achieving sustainable chemical production, particularly within energy-intensive industries. With advantages like rapid response times, low thermal input, and the ability to operate at atmospheric pressures, NTP systems are well-suited integration with renewable energy sources. However, translating lab-scale insights into scalable industrial applications presents substantial challenges, in understanding plasma-catalyst interactions designing reactors that perform efficiently larger scales. This review explores recent advancements catalysis, highlighting studies provide foundational knowledge of plasma-surface chemistry, catalyst behavior, reactor design. Additionally, we examine novel approaches photo- electro-catalysis, which offer added control over reaction pathways. The further addresses scaling challenges potential solutions, from design modifications process optimization under industrially relevant conditions. By linking fundamental research applications, this narrative aims identify pathways through can contribute zero-emission, circular carbon economy.
Language: Английский
Citations
0