Advances in the Catalytic Conversion of Ethanol into Nonoxygenated Added‐Value Chemicals DOI
Xueli Yao, Teng Li, Sang‐Ho Chung

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 6, 2024

Abstract Given that ethanol can be obtained from abundant biomass resources (e.g., crops, sugarcane, cellulose, and algae), waste, CO 2 , its conversion into value‐added chemicals holds promise for the sustainable production of high‐demand chemical commodities. Nonoxygenated chemicals, including light olefins, 1,3‐butadiene, aromatics, gasoline, are some most important these commodities, substantially contributing to modern lifestyles. Despite industrial implementation ethanol‐to‐hydrocarbons processes, several fundamental questions technological challenges remain unaddressed. In addition, utilization as an intermediate provides new opportunities direct valorization . Herein, recent advances in design catalysts summarized, providing mechanistic insights corresponding reactions catalyst deactivation, discussing related future research directions, exploitation active site proximity achieve better synergistic effects involving ethanol.

Language: Английский

Promoted hydrogenation of CO2 to methanol over single-atom Cu sites with Na+-decorated microenvironment DOI Creative Commons

Li−Li Ling,

Xinyu Guan, Xiaoshuo Liu

et al.

National Science Review, Journal Year: 2024, Volume and Issue: 11(6)

Published: March 21, 2024

ABSTRACT Although single-atom Cu sites exhibit high efficiency in CO2 hydrogenation to methanol, they are prone forming nanoparticles due reduction and aggregation under reaction conditions, especially at temperatures. Herein, stabilized by adjacent Na+ ions have been successfully constructed within a metal–organic framework (MOF)-based catalyst, namely MOF-808-NaCu. It is found that the electrostatic interaction between Hδ− species plays pivotal role upholding atomic dispersion of MOF-808-NaCu during hydrogenation, even temperatures up 275°C. This exceptional stabilization effect endows catalyst with excellent activity (306 g·kgcat−1·h−1), selectivity methanol (93%) long-term stability elevated temperatures, far surpassing counterpart absence (denoted as MOF-808-Cu). work develops an effective strategy for fabrication stable advanced catalysis creating alkali-decorated microenvironment close proximity.

Language: Английский

Citations

17
Localized assembly in biological activity: Origin of life and future of nanoarchitectonics DOI
Jingwen Song, Kohsaku Kawakami, Katsuhiko Ariga

et al.

Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 339, P. 103420 - 103420

Published: Feb. 3, 2025

Language: Английский

Citations

3
The Reinforced Separation of Intractable Gas Mixtures by Using Porous Adsorbents DOI
Quanli Ke, Feng Xiong,

Guonan Fang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(41)

Published: Aug. 19, 2024

Abstract This review focuses on the mechanism and driving force in intractable gas separation using porous adsorbents. A variety of mixtures have been discussed, including air separation, carbon capture, hydrocarbon purification. Moreover, systems are categorized according to distinctly biased modes depending minor differences kinetic diameter, dipole/quadruple moment, polarizability adsorbates, or sorted by varied occasions (e.g., CO 2 capture from flue air) forces (thermodynamic molecular sieving). Each section highlights functionalization strategies for materials, like synthesis condition optimization organic group modifications cation exchange heteroatom doping zeolites, metal node‐organic ligand adjustments MOFs. These subsequently associated with enhanced adsorption performances (capacity, selectivity, structural/thermal stability, moisture resistance, etc.) toward analog mixtures. Finally, this also discusses future challenges prospects materials separation. Therein, combination theoretical calculation parameters adsorbents may great potential, given its fast targeting candidate deeper insights into confined pores cages.

Language: Английский

Citations

8
Mechanistic Insights into the Methylation and Formylation of Amines with CO2: Exploring Diverse CO2 Activation Models DOI
Pan Du, Ling Han, Xue Zhang

et al.

The Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

The urgent need to address global warming and resource depletion has spurred research into sustainable methods for the utilization of CO2 as a C1 source. However, challenge remains in developing metal-free, cost-effective, environmentally friendly approaches conversion. Here, we investigate mechanisms activation methylation formylation amines using both theoretical experimental approaches. Our study reveals that process is complex, with "double H model" proving most effective, while reaction more straightforward, favoring "single model." Control experiments confirmed these distinct models by monitoring HCOOH formation. We further evaluated key influencing factors, including Hirshfeld charge nucleophilicity. Based on our findings, successfully designed new reactions, demonstrating practical applications mechanisms. This provides valuable insights conversion strategies, advancing field chemistry.

Language: Английский

Citations

0
Electrocatalysis: Prospects and Role to Enable an E‐Chemistry Future DOI Creative Commons
Gabriele Centi, Siglinda Perathoner

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
Developments of catalysts for the direct conversion of aqueous ethanol to butadiene DOI Creative Commons

Liu Na,

Mingkai Wang, Yijun Zhou

et al.

Green Carbon, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
Zirconia Nanoparticles Uniformly Supported on Mesoporous Alumina–Carbon as a Highly Efficient Catalyst for the Direct Ethanol-to-Butadiene Reaction DOI
Yan Hao, Yang Zhou, Zheng Gao

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(33), P. 12313 - 12327

Published: Aug. 5, 2024

The direct ethanol-to-butadiene (ETB) reaction is a complex tandem reaction, and the precise control of multifunctional active sites key to improving production butadiene. Considering fact that synergistic effect Zr–Al dual centers hydrophobicity carbon surface are beneficial for ETB Zr/Al–C catalyst has been prepared via initial wet impregnation using zirconium nitrate as precursor mesoporous alumina–carbon support. obtained zirconia nanoparticles uniformly dispersed on with mean particle size about 3.5 nm due confinement channels strong interaction between alumina zirconia. 10Zr/Al–C loading 10 wt % exhibits much higher butadiene selectivity (58 vs 6.2%) ethanol conversion (95 70%) compared Al–C at 375 °C under space velocity 4.74 h–1, formation zirconia–alumina solid solution. Moreover, increase Zr led increased medium acid decreased various oxygen vacancies, which affected selectivity. It was found an appropriate acid/medium ratio 0.43 base/total base 0.17 were balance each step, necessary achieve high recycling studies showed could maintain 89% 50% after running 120 h. provides efficient method reaction.

Language: Английский

Citations

2
Carbon-based material for CO 2 catalytic conversion applications DOI Creative Commons

Wenhang Wang,

Yang Wang, Xiangjin Kong

et al.

Carbon Future, Journal Year: 2024, Volume and Issue: 1(3), P. 9200016 - 9200016

Published: Aug. 7, 2024

Carbon dioxide (CO2) is not only a greenhouse gas but also an abundant carbon resource. CO2 hydrogenation from electrocatalysis and thermocatalysis processes to high-value-added chemicals has attracted wide attention. The development of the catalyst was critical in reaction, key innovation its synthesis strategy. materials were widely employed reactions due their unique physical chemical properties. species could play many roles during preparation reaction process, as bulk catalysts structure modifiers catalyst, support electronic regulator catalyst. In this review, we summarized strategy by assisting method our research group, which can be applied for thermochemical electrochemical hydrogenation. This review aims inspire new ideas through design carbon-based catalysts.

Language: Английский

Citations

2
A review on understanding the structure-performance relationships of metal-zeolite catalysts for direct dehydrogenation of propane to propylene DOI
Weijie Zhang, Kangzhou Wang, Tong Liu

et al.

Fuel, Journal Year: 2024, Volume and Issue: 380, P. 133181 - 133181

Published: Sept. 23, 2024

Language: Английский

Citations

2
Boosting Long-Chain Linear α-Olefins Synthesis from CO2 Hydrogenation over K–FeMn Catalyst via Stabilizing Active Sites DOI
Kangzhou Wang, Ziqin Li,

Tong Liu

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: unknown, P. 17469 - 17479

Published: Nov. 12, 2024

CO2 to long-chain linear α-olefins (LAOs) is an effective strategy for the production of LAOs and realization resource utilization. However, control activation chain growth improve catalytic activity selectivity remains a great challenge. Herein, we report that K–FeMn catalyst prepared by precoordinated combustion method exhibits prominent performance in hydrogenation LAOs, which achieved more than 67% C4+ hydrocarbon conversion 36.6% at 320 °C, 1.5 MPa, 30 gcat.·h·mol–1. The structure well correlated. catalysts possessed strong interactions between Fe Mn species, effectively promoted generation Fe-carbides inhibited generated olefins, thereby improving LAOs. These findings will provide theoretical basis guidance in-depth understanding development efficient catalysts.

Language: Английский

Citations

2