The green chemistry paradigm in modern organic synthesis

Russian Chemical Reviews, Journal Year: 2023, Volume and Issue: 92(12), P. RCR5104 - RCR5104

Published: Dec. 1, 2023

After the appearance of green chemistry concept, which was introduced in vocabulary early 1990s, its main statements have been continuously developed and modified. Currently, there are 10–12 cornerstones that should form basis for an ideal chemical process. This review analyzes accumulated experience achievements towards design products processes reduce or eliminate use generation hazardous substances. The presents views leading Russian scientists specializing various fields this subject, including homogeneous heterogeneous catalysis, fine basic organic synthesis, electrochemistry, polymer chemistry, based on bio-renewable feedstocks energetic compounds materials. A new approach to quantitative evaluation environmental friendliness by authors is described. <br> bibliography includes 1761.

Language: Английский

---

Recent research progress of bismuth-based electrocatalysts for electrochemical reduction of carbon dioxide

Microstructures, Journal Year: 2025, Volume and Issue: 5(1)

Published: Feb. 18, 2025

With modern science and technology developing, the concentration of atmospheric carbon oxide (CO2) has increased substantially. CO2 electroreduction reaction (CO2RR) can efficiently utilize sustainable power to produce value-added chemicals implement energy storage. Previous researches have proved bismuth metal bismuth-based materials transfer formate selectively. However, in this paper, latest progress synthesis advanced electrocatalysts with CO2RR catalysts is reviewed from aspects catalyst material design, synthesis, mechanism performance verification/optimization. Some methods designing are discussed analyzed different angles, including morphology, defects heterogeneous structures. In particular, application situ characterization technique introduced. Subsequently, some views expectations regarding current challenges future potential research presented.

Language: Английский

---

CO₂-Assisted Oxidative Dehydrogenation of Propane over VO_x/In₂O₃ Catalysts: Interplay between Redox Property and Acid–Base Interactions

ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(18), P. 11239 - 11252

Published: Sept. 1, 2022

In this work, a series of VOx-loaded In2O3 catalysts were prepared, and their catalytic performance was evaluated for CO2-assisted oxidative dehydrogenation propane (CO2-ODHP) compared with alone. The optimal composition is obtained on 3.4V/In2O3 (surface V density 3.4V nm–2), which exhibited not only higher C3H6 selectivity than other V/In under isoconversion conditions but also an improved reaction stability. To elucidate the catalyst structure–activity relationship, VOx/In2O3 characterized by chemisorption [NH3-temperature-programmed desorption (TPD), NH3-diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), CO2-TPD, CO2-DRIFTS], H2-temperature-programmed reduction (TPR), in situ Raman spectroscopy, UV–vis diffuse near-ambient pressure X-ray photoelectron absorption further examined using functional theory. In–O–V structure extent oligomerization, play crucial role improving stability, identified catalysts. particular, presence surface VOx (i) inhibits deep In2O3, thereby preserving activity, (ii) neutralizes excess basicity thus suppressing dry reforming achieving propylene selectivity, (iii) introduces additional redox sites that participate utilizing CO2 as soft oxidant. present work provides insights into developing selective, stable, robust metal-oxide CO2-ODHP controlling conversion reagents via desired pathways through interplay between acid–base interactions properties.

Language: Английский

---

Atomic layer deposition of Ga2O3 on γ-Al2O3 catalysts with higher interactions and improved activity and propylene selectivity in CO2-assisted oxidative dehydrogenation of propane

Applied Catalysis A General, Journal Year: 2023, Volume and Issue: 655, P. 119117 - 119117

Published: Feb. 25, 2023

Language: Английский

---

Tailoring the Olefin Selectivity in Catalytic Oxidative Dehydrogenation of Light Alkane by the Isolation Strategy

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(4), P. 2502 - 2521

Published: Feb. 2, 2024

Olefins are important building blocks that have been extensively used to produce diverse consumer products in petrochemical industry. Owing the requirement of low-carbon-footprint processes and increasing use light alkanes sourced from shale gas, an environmentally friendly economic route alternative state-of-the-art steam cracking crude oil has investigated for olefin production. The oxidative dehydrogenation (ODH) olefins attracted wide attention due absence thermodynamic limitations coke formation. However, excessive oxidation is prone occur this process. Developing a suitable ODH catalyst with high performance, particularly enhanced selectivity, more urgent but still remains challenge. In Review, we talk about representative currently developed isolation strategies optimize selectivity via process, conversion ethane ethylene, which include dispersion regulation metal oxide, nonmetal sites, construction dual functional sites isolate steps, adoption selective oxygen species promotion soft oxidants as reactants. Furthermore, mechanistic aspects activation participation tailoring then classified discussed detail. Finally, perspectives emerging technologies process listed evaluated.

Language: Английский

---

Recent progress in the development of catalysts for propane dehydrogenation in the presence of CO₂

Reaction Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 9(6), P. 1292 - 1312

Published: Jan. 1, 2024

Propane dehydrogenation (PDH) has become an important strategy to address the ever-increasing global demand for propene.

Language: Английский

---

Support effects in vanadium incipient wetness impregnation for oxidative and non-oxidative propane dehydrogenation catalysis

Catalysis Today, Journal Year: 2024, Volume and Issue: 430, P. 114546 - 114546

Published: Jan. 22, 2024

Language: Английский

---

Highly selective electrocatalytic reduction of CO₂ to ethane over a petal-like Zn(OH)₂/Cu₂₊₁O/Cu foam catalyst at low overpotentials

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(22), P. 13510 - 13519

Published: Jan. 1, 2024

Due to multiple reaction steps and a lack of efficient catalysts, the synthesis ethane from CO 2 electroreduction (ECO RR) is particularly challenging. A Zn(OH) /Cu 2+1 O/CF catalyst was applied in electrocatalytic reduction ethane, which offers high selectivity at low overpotentials.

Language: Английский

---

Copper oxide foam with high specific surface area for electrocatalytic reduction of CO₂ to C₂₊ products

cMat., Journal Year: 2024, Volume and Issue: 1(1)

Published: June 1, 2024

Abstract The carbon dioxide reduction reaction (CO 2 RR) for the synthesis of high‐energy‐density and high‐value multi‐carbon (C 2+ ) products has demonstrated considerable potential practical applications. In this work, we design a novel copper oxide foam (OD‐Cu foam) catalyst through high‐temperature calcination process, characterized by substantial specific surface area. distinctive three‐dimensional structure OD‐Cu metal particles covered on its provide abundant active sites. total Faradaic efficiency 57.3% C over is achieved at −0.85 V versus reversible hydrogen electrode (RHE). Furthermore, partial current density reaches 44.1 mA cm −2 −0.95 RHE, surpassing significantly that both Cu (3.4 foil foil) (1.6 ). addition, integrated foam, which does not require complex preparation processes, facilitates application in CO RR. These results underscore significance high area, emphasizing effective sustainable conversion.

Language: Английский

---

High specific surface area inherited from sea-urchin-like AACH clusters prepared by a novel spray precipitation

Rare Metals, Journal Year: 2022, Volume and Issue: 41(11), P. 3684 - 3693

Published: Sept. 1, 2022

Language: Английский

---