Article
Green & Sustainable Science & Technology
Aleksa Kojcinovic, Blaz Likozar, Miha Grilc
Summary: This study provides guidelines for the utilization of advanced technology in the century-old yet inadequately described reaction system of Kolbe-Schmitt and Marasse carboxylation of phenol. It systematically investigates and thoroughly explains the preparation procedures and analytical methods, offering valuable insights into this promising route in carbon capture and utilization practices.
Article
Chemistry, Multidisciplinary
Yan Fan, Jianqiang Feng, Miao Yang, Xin Tan, Hongjun Fan, Meijin Guo, Binju Wang, Song Xue
Summary: Enzymatic carbon fixation is a key process in CO2 sequestration. This study demonstrates that the concentration of CO2(aq) is crucial for increasing CO2 fixation yield in a homogeneous reaction under alkaline conditions, with a high concentration of HCO3- also playing a role in promoting carboxylation by decarboxylase. Furthermore, the highest CO2 fixation yield was achieved under specific reaction conditions, with a good turnover frequency for carboxylation reactions.
Article
Chemistry, Multidisciplinary
Neng-Zhi Jin, Qi-Bin Zhang, Rong Liu, Pan-Pan Zhou
Summary: Experimental studies on the Kolbe-Schmitt reaction and its side reactions have made progress, but theoretical studies are lacking. The study found that there is a dynamic equilibrium between the main product and side product for 2,6-di-tert-butylphenol, while for 2,4-di-tert-butylphenol, the main product is thermodynamically favorable but the side product is kinetically favorable.
STRUCTURAL CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Martin Tiano, Ryan Clark, Laetitia Bourgeois, Margarida Costa Gomes
Summary: This short review focuses on the dialkylcarbonate route as a promising pathway for the large-scale, environmentally friendly production of ionic liquids. This method avoids the use of pollutant alkylating agents and non-sustainable anion exchange materials, allowing for the preparation of over one hundred original ion pairs in a halide-free and water-free process.
Article
Chemistry, Physical
Preeti H. Pandey, Hitesh S. Pawar
Summary: This manuscript demonstrates the alkali metal hydroxide free, direct carboxylation reaction over heterogeneous CuO/ZrO2 catalyst, which is a green and efficient route for the Kolbe-Schmitt reaction. The performance of the catalysts was evaluated, and in-depth physicochemical characterization and process intensification studies were conducted. The results show the potential of CuO/ZrO2 catalyst for the production of hydroxybenzoic acids.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
K. S. Aneeshkumar, Jinsen Tian, Jun Shen
Summary: This brief review summarizes the recent advancements in metallic glasses and metallic glass nanostructures for functional electrocatalytic applications. Metallic glasses have unique structural features that make them promising candidates for electrocatalysis, and various strategies such as density functional theory and high-throughput screening have been employed to enhance their performance. The review also discusses the potential of metallic glasses in catalytic applications such as electrocatalytic water splitting, fuel cell reactions, alcohol oxidation reactions, and degradation of organic dyes.
CHINESE CHEMICAL LETTERS
(2022)
Review
Chemistry, Organic
N. Yu. Kuznetsov, A. L. Maximov, I. P. Beletskaya
Summary: The uncontrollable growth of CO2 concentration in the Earth atmosphere is a cause of ever-accelerating global warming. In this review, the authors aim to draw the attention of chemists to the possibilities of using CO2 in synthesis and the achievements made in this area, particularly in the synthesis of hydroxybenzoic acids, methanol, and formic acid.
RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Naiwrit Karmodak, Jens K. Norskov
Summary: In this study, a computational catalyst-screening method was designed to identify potentially interesting single-atom catalysts (SACs) and di-atom catalysts (DACs) for the O-2 reduction reaction (ORR). Four SACs and fifteen DACs with high estimated catalytic activity were identified, some of which showed high stability in both acidic and alkaline media.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Chun-Lung Huang, Zi-Fan He, Jui-Yu Pai, Yu-Hsiang Yang, Wen-Yang Jao, Chi-Yu Lai, Yi-Ting Lu, Hao-Yu Ku, Chi-Chang Hu
Summary: A non-precious-metal medium entropy sulfide embedded in sulfur-doped polyacrylonitrile-derived carbon fiber has been designed to maximize the synergistic effects and exhibits superior trifunctional electrocatalytic performances. The catalyst achieves low overpotentials for both oxygen and hydrogen evolution reactions with a minor efficiency decay under continuous operation. Moreover, a zinc-air battery with the catalyst-coated air electrode demonstrates extraordinary energy efficiency for over 60 hours.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Krishnan Ravi, Jean-Louis K. Gbe, Sanjay Mehra, Srinu Tothadi, Arvind Kumar, Ankush Biradar
Summary: This paper presents a facile synthetic route for a multifunctional solid base catalyst. The amine-functionalized bagasse was synthesized and further converted to quaternary ammonium functionalized bagasse. The successful functionalization of amine group was confirmed by elemental composition and FT-IR analysis, while the formation of C-N+ bond was supported by XPS analysis. The amine-functionalized bagasse exhibited good recyclability and high conversion of aldehydes, while the quaternary ammonium functionalized bagasse showed moderate conversion of epoxides and good selectivity of cyclic carbonates.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Alexey P. Krinochkin, Mallikarjuna R. Guda, Aluru Rammohan, Dmitry S. Kopchuk, Igor L. Nikonov, Evgeny D. Ladin, Sougata Santra, Ilya N. Egorov, Grigory V. Zyryanov, Oleg N. Chupakhin
Summary: This article reports the reaction between 5-cyano-3,6-di(het)aryl-1,2,4-triazines and arylhydrazines, which forms hardly available 2-amino-3,6-di(het)aryl-pyridines through aza-Diels-Alder autoclave reaction. The reaction yields up to 67% after two steps and 75% in one-pot synthesis, making the obtained compounds promising for medicinal chemistry.
MENDELEEV COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Hang Lv, Peiran Tong, Hong Li, Benteng Sun, Yang Li, Panzhe Qiao, He Tian, Haibing Xia
Summary: In this work, core-alloyed shell structured Fe@FeCo di-atomic nanoclusters loaded in carbon aerogels (CAS Fe@FeCo DA-NC/C catalysts) were successfully prepared by utilizing the spatial confinement effect of poly-aniline hydrogels. The CAS Fe@FeCo DA-NCs exhibit excellent performance as bi-functional catalysts in the oxygen reduction reaction (ORR) and the hydrogen evolution reaction (HER) due to their unique features as active species.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Weiqiang Tang, Hongping Yu, Teng Zhao, Leying Qing, Xiaofei Xu, Shuangliang Zhao
Summary: The newly proposed dynamic reaction density functional theory (DRxDFT) combines classical dynamic DFT with reaction collision theory to describe reaction-diffusion coupling at the nanoscale. The enhancement of reaction efficiency is found to be strongly determined by the degree of coupling between reaction and diffusion, rather than just the increase in reaction or diffusion rate.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Chemistry, Physical
Peng Lin, Nannan Niu, Ran Zuo, Yulong Fang, Zhihong Feng
Summary: The study found that there are differences in the adsorption positions and stability of MMAl and DMAlNH2 under different surface conditions, with the adsorption on NH2-covered surfaces being more affected.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Chenglong Xie, Xinxin Zhang, Haitao Yu, Ying Xie
Summary: A one-pot hot-colloidal route was used to synthesize mono-dispersed NiCoP catalysts with a particle size of around 5.0 nm, and carbon nanotubes (CNTs) were introduced to improve their structural stability and electronic conductivity. The synergistic effect between Ni and Co in the NiCoP catalyst resulted in not only charge redistribution but also facilitated electron transfer, leading to optimal Delta G(H*) of the catalyst. The NiCoP/CNTs catalyst showed excellent hydrogen evolution reaction (HER) performance in both acidic and alkaline electrolytes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
