Review
Chemistry, Multidisciplinary
Liu Lujie, Zhang Jian, Wang Liang, Xiao Fengshou
Summary: The catalytic transformation of biomass-derived polyols into valuable chemicals using renewable carbon resources is an important research area. In this review, the selective conversion of sugar alcohols into mono-alcohols and/or diols is discussed, with a focus on the design and preparation of heterogeneous catalysts with high activity, selectivity, and stability. The metal-metal oxide interaction, catalyst structure-performance relationship, and reaction mechanism for C-O hydrogenolysis are highlighted. The future trends for selective hydrogenolysis of sugars are also discussed.
ACTA CHIMICA SINICA
(2023)
Article
Chemistry, Multidisciplinary
Xin Zhao, Fengliang Wang, Xiang-Peng Kong, Ruiqi Fang, Yingwei Li
Summary: This study reports a novel deposition strategy for the fabrication of differently coordinated dual-metal hetero-single atom catalysts, showing significantly enhanced catalytic performances due to strong synergistic interactions between Cu and Co. The mechanism behind the superior catalytic activity may stem from the asymmetrically deployed CuC4 and CoN4 sites on the hierarchical carbon support.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Ruiyi Wang, Kuan Lu, Jin Zhang, Xincheng Li, Zhanfeng Zheng
Summary: The study presents a nitrogen-doped porous carbon-encapsulated Au-doped Co nanoparticle catalyst with abundant and electron-rich Co-Nx sites in the outer carbon layer. The optimal catalyst shows improved catalytic performance in alcohol selective oxidative esterification with a yield of 99.9%. Au doping in the Co nanoparticle core increases the content and electron density of Co-Nx species on the outer carbon shell, enhancing the adsorption and activation of molecular O2 and generating reactive O2•-species.
Review
Chemistry, Physical
Somasundaram Chandra Kishore, Suguna Perumal, Raji Atchudan, Ashok K. K. Sundramoorthy, Muthulakshmi Alagan, Sambasivam Sangaraju, Yong Rok Lee
Summary: The scientific community is exploring alternative renewable fuels like biodiesel due to the high price of petroleum and increased demand for petroleum-derived products. Transesterification, a technique for creating biodiesel, utilizes a variety of oils and fats, with the choice of catalyst determined by the free fatty acid content in the oil. Heterogeneous catalysts, obtained from biomass and biowaste resources, have solved the issues associated with homogeneous catalysts and have been used to produce high-quality biodiesel efficiently.
Article
Chemistry, Physical
Fan Song, Shuangshuang Cen, Cong Wan, Lijun Wang
Summary: Efficient and stable oxidative esterification of furfural over Au nanoparticles anchored in aminopropyl-grafted silica aerogel was achieved in this study. The catalyst maintained its initial activity in 7 cycles of reactions without any treatments, with yields of alkyl furoate above 98% and no agglomeration or leaching of Au. The roles of Au, alkyl chain, -NH2 group, and Au-activated O species in reactions were clarified, along with a possible catalytic mechanism involving oxidative dehydrogenation.
Article
Chemistry, Physical
Zhiyan Chen, Haozhe Li, Keyan Sheng, Xiaohan Dong, Jushigang Yuan, Shuai Hao, Minghao Li, Rongxian Bai, Yves Queneau, Alexander Sidorenko, Jiang Huang, Yanlong Gu
Summary: An efficient approach for dipolar modification of commercially available solid catalysts, HMS-DMSO, is reported. The dipolar catalysts, decorated with organic dipolar layers, can serve as platforms to introduce various active sites and achieve catalytic performance in relatively friendly systems.
Article
Chemistry, Physical
Ben Liu, Yoshinao Nakagawa, Mizuho Yabushita, Keiichi Tomishige
Summary: This study investigated the hydrogenolysis of 1, 2-diols to primary and secondary alcohols using Ir-FeOx catalysts supported on nonoxides. It was found that BN effectively supported the hydrogenolysis of 1, 2-butanediol to produce 2-butanol, similar to previous findings with rutile TiO2. The addition of Fe species to Ir/BN greatly enhanced catalytic activity, while other supports, such as carbon, mainly produced primary alcohols.
Article
Chemistry, Multidisciplinary
Andrea Vassoi, Tommaso Tabanelli, Annalisa Sacchetti, Francesca Di Gioia, Luigi Capuzzi, Fabrizio Cavani
Summary: This study introduces a new heterogeneous catalyst for the oxidative cleavage of unsaturated fatty acids triglycerides derived from vegetable oil, providing a promising alternative to current ozonization processes. The catalyst based on Cu2+ showed efficient recovery, regeneration, and recycling capabilities, offering potential for further industrial exploitation.
Article
Chemistry, Multidisciplinary
Tomohiro Ichitsuka, Takashi Makino, Takayuki Ishizaka
Summary: This study developed an ecofriendly method for the synthesis of N-arylamides using isopropenyl esters and heterogeneous acid catalysts, which enables the synthesis of various N-arylamides in high yields. The method has a wider substrate scope and allows for the obtainment of high-purity products.
Review
Chemistry, Multidisciplinary
Lifei Lian, Huaiying Zhang, Sai An, Wei Chen, Yu-Fei Song
Summary: POMs, as a class of discrete anionic metal-oxygen clusters with tunable structure, exhibit super strong Bransted acidity, high proton mobility, and thermal stability, making them potential green alternatives to conventional homogeneous acid catalysts. Through design strategies such as functionalized cations, covalent interactions, non-precious metal support, and porous polymer framework, POMs-based heterogeneous catalysts have shown excellent catalytic performance in specific acid-catalyzed reactions.
SCIENCE CHINA-CHEMISTRY
(2021)
Review
Energy & Fuels
M. Mulyatun, Jedy Prameswari, I. Istadi, W. Widayat
Summary: Research on biodiesel production utilizing heterogeneous catalysts focuses on improving production quality and sustainability, with non-food feedstocks and acid-base bifunctional catalysts considered as important factors that can significantly reduce production costs by 60-70%.
Review
Chemistry, Inorganic & Nuclear
Min Ge, Shouxin Liu, Jian Li, Meng Li, Shujun Li, Tony D. James, Zhijun Chen
Summary: Luminescent materials have great potential in various fields, and the conversion of biomass resources into functional luminescent materials has gained significant attention. However, only a few reviews have focused on this area. This review aims to address this gap and introduce the types of biomass sources available for the preparation of luminescent materials. It will cover the structure-optical performance correlation, preparation and optical properties, potential applications, and future challenges and perspectives of biomass-derived luminescent materials.
COORDINATION CHEMISTRY REVIEWS
(2023)
Review
Engineering, Chemical
Junying Tian, Xiaowei Cheng, Yingying Fan, Weiguo Fang, Peng Dong, Guixian Li, Yongle Guo
Summary: This article reviews the reactions of furfural with aliphatic alcohols via oxidative esterification or oxidative condensation reactions, which bond two carbon molecules together to produce longer hydrocarbon chains. These reactions are considered important utilization routes of furfural, and many catalytic systems have been designed to promote these reactions. The catalysts for the oxidative esterification reaction are classified into noble metal catalysts and non-noble metal catalysts, while the studies on oxidative condensation reactions are divided into those using oxygen as the oxidant and those using the hydrogen transfer process. Suggestions for future research directions are also proposed.
Article
Chemistry, Physical
Harilal Krishna, Moritz O. Haus, Regina Palkovits
Summary: The gas-phase dehydration of biomass-derived N-(2-hydroxyethyl)-2-pyrrolidone using Na2O/SiO2-type catalysts offers a promising route to producing high-value polyvinylpyrrolidone. Through optimization of the catalysts and in-depth characterization, it was found that the activity of the catalyst is influenced by a balance between weak basic sites and surface hydroxyls, with the optimal synthesis procedure depending on the type of parent silica. This renewed understanding has expanded the application of Na2O/SiO2 materials to the dehydration of other biomass-derived chemicals in the polymer industry.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Materials Science, Multidisciplinary
Anupam Singha Roy, Aby Cheruvathoor Poulose, Aristides Bakandritsos, Rajender S. Varma, Michal Otyepka
Summary: 2D carbon materials like graphene derivatives have been explored as catalysts for biodiesel production due to their exceptional properties, but challenges such as irreversible agglomeration, low bulk density, and poor dispersibility in organic solvents limit their applications as catalysts or heterogeneous catalysts support.
APPLIED MATERIALS TODAY
(2021)
Article
Chemistry, Multidisciplinary
Gaofeng Chen, Olga A. Syzgantseva, Maria A. Syzgantseva, Shuliang Yang, Guihua Yan, Li Peng, Changyan Cao, Wenxing Chen, Zhiwei Wang, Fengjuan Qin, Tingzhou Lei, Xianhai Zeng, Lu Lin, Weiguo Song, Buxing Han
Summary: By anchoring Co and Cu sites onto a hierarchical porous N-doped carbon matrix, we designed a diatomic catalyst (Co/Cu-N-C) that exhibits outstanding performance in higher alcohol synthesis. With a CO conversion of 81.7%, it achieves a C(2+)OH selectivity of 58.5% and a remarkable C2+OH STY of 851.8 mg/g center dot h. The N-4-Co-1 and Cu-1-N-4 sites demonstrate excellent synergistic effects, with CO adsorbing on the Co site and surrounding nitrogen sites acting as a hydrogen reservoir for CO reduction reactions to form CHxCo. Simultaneously, the Cu sites stabilize a CHOCu species to interact with CHxCo, promoting barrier-free formation of C-2 species and enhancing the selectivity of higher alcohols.
Article
Energy & Fuels
Jiahong Chen, Wenlong Jia, Xin Yu, Yong Sun, Jiaren Zhang, Shuliang Yang, Xing Tang, Lincai Peng, Xianhai Zeng, Lu Lin
Summary: In this study, a highly stable chromium-free catalyst Co3AlOx was prepared for the synthesis of furfuryl alcohol. The catalyst exhibited excellent catalytic activity and stability, enabling efficient hydrogenation of furfural to furfuryl alcohol.
Article
Agricultural Engineering
Banglun Xiong, Sen Ma, Binglin Chen, Yunchao Feng, Zhiqing Peng, Xing Tang, Shuliang Yang, Yong Sun, Lu Lin, Xianhai Zeng, Yong Chen
Summary: This study investigated the impact of formic acid-facilitated hydrothermal pretreatment on bamboo, finding that it can increase the yield of xylo-oligosaccharides and produce lignin with better thermal stability. Through processing 100 kg of waste bamboo, it is estimated that 12.56 kg of xylo-oligosaccharides, 4.81 kg of xylose, 22.37 kg of glucose, and 13.28 kg of lignin can be obtained.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Agricultural Engineering
Liangqing Zhang, Jiarong Qiu, Jiahui Deng, Shunming Song, Zelong Hong, Wenlong Jia, Suchang Huang, Xianhai Zeng
Summary: This study synthesized a series of non-precious catalysts through co-precipitation and impregnation methods for the conversion of hemicellulosic biomass into sugar alcohols. The Ni8.98Fe1 @ 1.54SiO(2) catalyst prepared by the impregnation method showed excellent catalytic performance for converting xylose to sugar alcohols in a neutral aqueous solution, and it could also be applied to the direct conversion of hemicellulose. The catalyst with mesoporous properties and proper acidic sites played a vital role in the hydrolysis of hemicellulose into pentose sugars.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Thermodynamics
Nihong Zhuang, Jiacheng Wang, Sen Ma, Qiang Liu, Wenlong Jia, Xin Yu, Zheng Li, Shuliang Yang, Yong Sun, Xing Tang, Xianhai Zeng, Lu Lin
Summary: In this study, the solubility of FDCA in different ethers and binary solvent systems with water was measured. It was found that the solubility of FDCA was improved in binary solvent systems compared to pure solvents, and it initially increased and then gradually decreased with the increasing mole fraction of water. Various models and equations were used to analyze the solubility data and thermodynamic characteristics of FDCA in different solvent systems.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2023)
Article
Chemistry, Multidisciplinary
Chengfeng Li, Qishen Lyu, Zheng Li, Shuliang Yang, Yong Sun, Xing Tang, Xianhai Zeng, Lu Lin
Summary: The hydrogenation of biomass-based furan compounds is a crucial step in catalytic utilization of biobased chemicals. Ru-based catalysts supported on various supports were evaluated for the hydrogenation of dimethyl 2,5-furandicarboxylate (FDMC), and Ru/HY exhibited the highest yield of tetrahydrofuran-2,5-dicarboxylic acid dimethyl ester (THFDMC) under certain conditions. The superior performance of Ru/HY was attributed to the presence of more surface Ru-0 species and carbon radical intermediates, favoring the activation of hydrogen and the subsequent hydrogenation of FDMC.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Qiang Liu, Yong Sun, Xianhai Zeng, Lu Lin, Xing Tang
Summary: Efficient production of furancarboxylic acid (FA) through furfural oxidation at room temperature is of great significance. A CuO-MnCO3 bimetallic catalyst was used in a sodium hypochlorite solution as an efficient and sustainable heterogeneous catalyst system for the selective oxidation of furfural to FA. Cu-6-Mn-4 showed excellent catalytic performance with 100% furfural conversion and 96.9% selectivity to FA. The introduction of MnCO3 into the Cu-Mn catalyst increased the reactivity of lattice oxygen, and Cu-6-Mn-4 also exhibited excellent stability in reusability test. This study provides a simple and rapid catalytic strategy and scientific basis for the development of an efficient and mild aerobic oxidation of furfural.
Article
Chemistry, Physical
Ye Tian, Yunchao Femg, Zheng Li, Yi Fan, Jonathan Sperry, Young Sun, Shuliang Yang, Xiang Tang, Lu Lin, Xianhai Zeng
Summary: In this study, a CoOx/Nb2O5 nanostructure catalyst was synthesized for the selective hydrogenation of furfural (FF) to furfuryl alcohol (FA). The optimized conditions resulted in a 95.7% yield of FA with a TOF of 155.7 h-1. The catalyst characterization revealed the interaction between Nb2O5 and CoO, which prevented the further reduction of CoO to metal Co. DFT calculations confirmed that CoO was the main adsorption site for FF in CoOx/Nb2O5-ctr.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Physical
Sishi Long, Yunchao Feng, Binglin Chen, Lihui Gan, Xianhai Zeng, Minnan Long, Jian Liu
Summary: Zr-carbon aerogel (Zr-DCCA) was prepared using renewable deep eutectic solvents (DESs) and cellulose nanofiber as templates. Zr-DCCA exhibited high conversion, selectivity, and stability for transfer hydrogenation of various biomass aldehydes. Comparative studies with Zr-based carbon aerogels (Zr-CCA) prepared without DESs showed lower catalytic performance. Characterizations revealed that Zr-DCCA had higher dispersion and smaller size of ZrO2 nanoparticles, resulting in stronger acid/base properties. Furthermore, the absence of traditional stirring and centrifugation in the reaction simplified equipment and operations, making the process more practical.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Physical
Gaofeng Chen, Olga A. Syzgantseva, Maria A. Syzgantseva, Li Peng, Dragos Stoian, Mo Li, Isil Akpinar, Guihua Yan, Tianwei Xue, Qishen Lyu, Zhiwei Wang, Tingzhou Lei, Xianhai Zeng, Lu Lin, Shuliang Yang
Summary: In this study, a hydrophobic CuCoSNTs-c catalyst with a hollow tubular structure and mesoporous wall was successfully synthesized for higher alcohol synthesis (HAS). The synthesized catalyst exhibited excellent stability for 360 h without obvious activity loss and suppressed the selectivity of CO2 to less than 1.2%, while achieving a C2+OH selectivity of up to 66.6% at a CO conversion of 80.4%. Furthermore, the elaborately designed hydrophobic and aerophilic properties of the CuCoSNTs-c catalyst played a crucial role in enhancing CO conversion and C2+OH selectivity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Thermodynamics
Zhizhou Tan, Xianhai Zeng, Boqiang Lin
Summary: This study investigates the economic viability of retrofitting current coal-fired power plants with biomass co-firing and carbon capture and storage technology as a feasible option for decarbonization. Using the real options approach, the study evaluates the potential project value under different uncertainties and policy scenarios. The study suggests that raising carbon prices and implementing a composite policy scheme including electricity price subsidy and carbon tax credit can promote retrofit projects and effectively advance decarbonization efforts worldwide.
Article
Chemistry, Physical
Binglin Chen, Zhendong Yu, Renjie Huang, Ye Tian, Zheng Li, Jonathan Sperry, Shuliang Yang, Xing Tang, Yong Sun, Lu Lin, Xianhai Zeng
Summary: This study reports the synthesis of 2,5-hexanedione (HD) from 5-(chloromethyl)furfural (CMF) using polymethylhydrosiloxane (PMHS) as the hydrogen donor for the first time. It was found that the yield of HD reached 78% at 160°C for 30 minutes. The presence of acidic protons significantly promoted the coupling reaction (hydrodechlorination, hydrogenolysis, and hydrolysis) from a kinetic and thermodynamic perspective. Modifying Pd nanoparticles (NPs) with in situ generated Cl species improved the adsorption of substrate molecules on step sites compared to corner sites. This work provides insights into the role of acidic protons and the migration mechanism of Cl species, and offers a basis for the development of future catalytic systems and the synthesis of biomass-derived chemicals.
Article
Chemistry, Physical
Xin Yu, Xiaoyi Huang, Wenlong Jia, Jiahong Chen, Shibo Yang, Lincai Peng, Yong Sun, Xing Tang, Xianhai Zeng, Shuliang Yang, Zheng Li, Feng Xu, Lu Lin
Summary: In this study, a CoNi bimetallic nitrogen-doped carbon nanotubes (CNTs) catalyst was successfully prepared and demonstrated excellent catalytic performance for furfural oxidative esterification under base-free conditions (methyl furoate yield >99%) and great recyclability (5th recycle). Notably, an impressive methyl furoate formation rate of around 1980 mu mol(methyl furoate)center dot g(cat)(-1)center dot h(-1) was achieved, which is one of the highest rates reported. The results indicate that the doping of Ni into the CoxNiy-CNTs catalyst provides more active sites, and the introduction of Ni enhances basicity, promoting beta-hydride elimination and overall activity for furfural oxidative esterification.
MOLECULAR CATALYSIS
(2023)
Review
Chemistry, Physical
Weiping Deng, Yunchao Feng, Jie Fu, Haiwei Guo, Yong Guo, Buxing Han, Zhicheng Jiang, Lingzhao Kong, Changzhi Li, Haichao Liu, Phuc T. T. Nguyen, Puning Ren, Feng Wang, Shuai Wang, Yanqin Wang, Ye Wang, Sie Shing Wong, Kai Yan, Ning Yan, Xiaofei Yang, Yuanbao Zhang, Zhanrong Zhang, Xianhai Zeng, Hui Zhou
Summary: This review article focuses on the state-of-the-art catalytic transformation of lignocellulosic biomass into value-added chemicals and fuels, including the conversion of cellulose, hemicellulose, and lignin, as well as the gasification and pyrolysis of whole biomass. The opportunities, challenges, and prospects of woody biomass valorization are highlighted.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Physical
Xin Yu, Tingke Jin, Huiqiang Wang, Guoqing Zhang, Wenlong Jia, Lincai Peng, Yong Sun, Xing Tang, Xianhai Zeng, Shuliang Yang, Zheng Li, Feng Xu, Lu Lin
Summary: A cost-effective and sustainable catalyst system based on Mn-Cu bimetallic oxides was found to be highly efficient for the selective oxidation of furfural to furancarboxylic acid. The incorporation of CuO into the Mn-Cu oxides weakened the Mn-O bonds, resulting in improved catalytic activity. The study provides insights into the relationship between the morphology, surface chemistry, and catalytic activity of Mn-Cu bimetallic oxides.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Physical
Yifan Sun, Ye Lv, Wei Li, Jinli Zhang, Yan Fu
Summary: In this study, PtRu electrocatalysts were fabricated on carbon paper via cyclic electrodeposition for the electrocatalytic hydrogenation (ECH) of phenol. The Pt3Ru3 catalyst exhibited excellent activity and stability for the conversion of phenol to cyclohexanol at ambient temperature and various current densities. The in situ Raman spectroscopy and kinetic study revealed the hydrogenation mechanism of phenol over Pt3Ru3 in acidic electrolyte, providing an effective electrochemical strategy for the facile construction of durable electrode materials and efficient phenol hydrogenation.
JOURNAL OF CATALYSIS
(2024)
Article
Chemistry, Physical
Amir Shahzad, Khezina Rafiq, Muhammad Zeeshan Abid, Naseem Ahmad Khan, Syed Shoaib Ahmad Shah, Raed H. Althomali, Abdul Rauf, Ejaz Hussain
Summary: Photocatalytic hydrogen production through water splitting is an effective method for meeting future energy demands. In this study, researchers synthesized a 1 % Ag2S/Cu2S co-doped CdZnS catalyst and found that it can produce hydrogen at a higher rate. The co-doping of Ag2S and Cu2S in the CdZnS catalyst showed a synergistic effect, with Ag2S promoting oxidation reactions and Cu2S promoting reduction reactions.
JOURNAL OF CATALYSIS
(2024)
