Article
Energy & Fuels
Yanbin Sun, Jianfeng Zheng, Jiajia Xu, Kaixuan Yang, Zhiguo Zhu, Ting Su, Hui Ge, Wanzhong Ren, Hongying Lu
Summary: In this study, a catalyst with Mo5+ connected to the oxygen vacancies in Anderson-type polyoxometalate was developed for the oxidation of HMF to DFF. The catalyst exhibited excellent oxidation performance, high selectivity, and remarkable stability.
Article
Chemistry, Applied
Linhao Yu, Hong Chen, Zhe Wen, Mengmeng Jin, Zewei Ma, Xueli Ma, Yushuai Sang, Mengmeng Chen, Yongdan Li
Summary: Experimental results demonstrate that α-MnO2 shows the best performance in oxidizing HMF to DFF, and isopropanol can improve the selectivity of DFF. Relatively high conversion rate and selectivity can be achieved at 140℃.
Article
Energy & Fuels
Wenlong Jia, Huai Liu, Xiaoyu Zhao, Yunchao Feng, Miao Zuo, Yong Sun, Xing Tang, Shuliang Yang, Xianhai Zeng, Lu Lin
Summary: A novel bimetallic catalyst FeCu@CN was synthesized through calcination of a Fe-Cu/cellulosic polymer framework precursor, showing outstanding catalytic performance in producing 2,5-diformylfuran (DFF) via selective oxidation of 5-hydroxymethylfurfural (HMF), with a high TOF and efficient HMF conversion. The results revealed that Cu sites and urea modification increased Fe valence, improving lattice oxygen activity and reducing electronic transfer energy, while Fe3+ and Cu played pivotal roles in the redox cycles for catalysis.
Article
Chemistry, Multidisciplinary
Tat Boonyakarn, Jan J. Wiesfeld, Miyuki Asakawa, Lulu Chen, Atsushi Fukuoka, Emiel J. M. Hensen, Kiyotaka Nakajima
Summary: An acetal protection strategy was used to efficiently synthesize 2,5-diformyfuran. Organic deposits formed during the reaction led to a decrease in catalyst activity, which could be resolved by sonication treatment.
Review
Chemistry, Multidisciplinary
Phuong Hoang Tran
Summary: This Review provides an overview of the latest developments in efficient catalytic systems for the sustainable conversion of HMF to DFF, which is a significant building block chemical derived from sustainable carbohydrates and has promising applications in pharmaceuticals and polymers.
Article
Chemistry, Multidisciplinary
Aicheng Chen, Tingting Li, Qian Zhang, Hu Zhu
Summary: Cobalt-ceria binary oxide nanojunctions were prepared using a sol-gel method with chelating agents, and the interfaces formed among CeO(2) and Co3O4 were found to promote the generation of nucleophilic O-& BULL;(2) (-) from O-2. The introduction of active sites for transforming O-2 to O-& BULL;(2) (-) is the key to boosting the selective aerobic oxidation of HMF to FDCA. The nanojunctions were found to enhance the FDCA yield dominantly by promoting the oxidation of HMF to HFCA.
Article
Chemistry, Physical
Thi-Hong-Hanh Le, Truong-Giang Vo, Chia-Ying Chiang
Summary: This study reports the first use of amorphous mixed cobalt-cerium metal oxides for 5-hydroxymethylfurfural oxidation. The optimized material shows good electrocatalytic activity towards HMF oxidation, with a current density 1.4 times higher than pure CoOx. The incorporation of Ce alters the electronic structure of the composite, promoting catalytic activity through the formation of CoOOH/CoO2.
JOURNAL OF CATALYSIS
(2021)
Review
Energy & Fuels
Huimin Sun, Ruohan Xu, Xiang Jia, Zhongyi Liu, Haijun Chen, Tianliang Lu
Summary: This paper reviews the recent research progress in catalytic conversion of HMF to DFF by photocatalytic oxidation, focusing on the reaction mechanisms and different photocatalytic systems. The selectivity of DFF is emphasized. It is hoped that this review will provide a solid foundation and guidance for future studies on cleaner valorization of biomass.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Inorganic & Nuclear
Yan Zhou, Shanshan Lv, Han Li, Qikang Wu, Taiyu Chen, Shaohuan Liu, Wanying Li, Wenjuan Yang, Zheng Chen
Summary: The development and transformation of biomass-derived platform compounds is a sustainable solution for the fossil fuel crisis. This study successfully synthesized a carbon-doped V2O5 material and achieved efficient oxidation of 5-hydroxymethylfurfural and excellent selectivity for 2,5-diformylfuran. The incorporation of graphitized carbon species in the catalyst structure enhanced catalytic activity by weakening VvO bonds and promoting the formation of oxygen vacancies.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Liwen Yin, Yaqiang Wu, Xiaolei Bao, Xiaolei Liu, Dujuan Dai, Minghui Zhang, Zeyan Wang, Zhaoke Zheng, Yuanyuan Liu, Hefeng Cheng, Ying Dai, Baibiao Huang, Peng Wang
Summary: Severe poisonousness and prolonged instability are major challenges for the future application of organic-inorganic lead-based perovskite in photocatalysis. In this study, a stable lead-free perovskite Cs2SnBr6 decorated with reduced graphene oxide (rGO) was successfully synthesized and applied in photocatalytic organic conversion. The Cs2SnBr6/rGO composite exhibited excellent photocatalytic activity for the photo-driven oxidation of 5-hydroxymethylfurfural (HMF) to high value enclosed 2,5-diformylfuran (DFF). The comprehensive characterizations revealed a multistep reaction mechanism involving molecular oxygen, photogenerated carriers, center dot O-2(-), and O-1(2). This work expands the material options for selective organic conversion and provides an environmentally friendly perovskite for photocatalytic applications.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Armando Campos Rodriguez, GuoBin Qiu, Ahsiur Rahman Nirjhar, Md. Tohidul Islam, Josh Laughlin, Miah Abdullah Sahriar, Sadiq Shahriyar Nishat, Kankana Mullick, Altug S. Poyraz, Saquib Ahmed, Sourav Biswas
Summary: Nanostructured first row transition metal oxides show promise as catalysts for energy- and atom-efficient manufacturing of value-added chemicals. In this study, potassium superoxide is used as an oxidant for rapid and mild synthesis of birnessite type layered manganese dioxide nanomaterials. These materials exhibit hierarchical porosity and sponge-like morphology, with tunable surface area. They also demonstrate promising catalytic activity in the selective aerobic oxidation of 5-hydroxymethylfurfural alcohol to 3,5-diformylfuran. Density functional theory is employed to investigate the interaction between the catalyst surface and HMF, providing insights into the energetics pathway and reaction kinetics.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Ming Zhang, Zhihao Yu, Yuxin Zhang, Linhao Sun, Jifang Cui, Jian Xiong, You Han, Xuebin Lu
Summary: To reduce dependence on fossil energy, researchers have studied the use of photocatalytic technology for the value-added conversion of biomass platform molecules. In this study, a 2D-3D heterojunction structure of black phosphorus/CdIn2S4 was prepared as a catalyst for the photocatalytic oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran. The heterojunction exhibited higher photocatalytic selective oxidation activity compared to pure CdIn2S4. The photocatalytic mechanism was proposed based on characterization and simulations, and the reaction pathway for the photocatalytic conversion was determined. This research provides new insights for the construction of heterostructures and the photocatalytic conversion of biomass platform molecules.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Ming Zhang, Zhihao Yu, Yuxin Zhang, Linhao Sun, Jifang Cui, Jian Xiong, You Han, Xuebin Lu
Summary: To reduce fossil energy dependence, the photocatalytic technology for value-added conversion of biomass platform molecules has been widely studied. In this study, a 2D-3D heterojunction structure of black phosphorus/CdIn2S4 was prepared and used for biomass value-added conversion. The black phosphorus/CdIn2S4 heterojunction exhibited higher photocatalytic selective oxidation activity compared to pure CdIn2S4. The photocatalytic mechanism of S-type heterojunctions with high photogenerated carrier separation and migration efficiency was proposed based on characterization and simulations.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Aicheng Chen, Tingting Li, Qian Zhang, Hu Zhu
Summary: The introduction of CeO2 can enhance the interface in the cobalt-ceria binary oxide nanojunctions, which can modify the catalytic oxidation properties and improve the catalytic activity and selectivity.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Weiyou Zhou, Zhenji Kong, Zhong Wu, Song Yang, Yu Wang, Yupeng Liu
Summary: Ni3Mn-LDH has been found to be an efficient catalyst for the oxidation of HMF to DFF using molecular oxygen. Both Ni2+ and Mn3+ species in the structure were suggested as active sites for the oxidation of HMF, showing a synergistic effect in the transformation process. The catalyst exhibited impressive catalytic performance, good stability, and recyclability.
CATALYSIS COMMUNICATIONS
(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
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
Green & Sustainable Science & Technology
Yixuan Yu, Huai Liu, Junhua Zhang, Heng Zhang, Yong Sun, Lincai Peng
Summary: We constructed amorphous bimetal Ni-Fe borides as efficient catalysts for the hydrogenolysis of biomass-derived 5-hydroxymethylfurfural (HMF) into 2,5-dimethylfuran (DMF), a potential biofuel candidate. The Ni(1.52Fe0.36)BOx catalyst achieved a near-quantitative DMF yield under mild operating conditions, with an excellent DMF formation rate that is significantly higher than state-of-the-art nickel-based catalysts. Mechanistic investigations revealed that the presence of Fe contributed to the generation of electron-enriched metal sites and powerful acidic sites, promoting the hydrogen activation and cleavage of C-O bond. The Ni(1.52Fe0.36)BOx catalyst also showed good recyclability and universality in the hydrogenolysis of various biomass-derived unsaturated aldehydes.
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
Energy & Fuels
Qiang Lu, Yuefang Chen, Weipeng Song, Chaonan Tao, Junhua Zhang, Yong Sun, Lincai Peng, Huai Liu
Summary: The addition of β-valerolactone (GVL) co-solvent during the acid-catalyzed conversion of cellulose in ethanol improves the reaction rate and catalytic activity for producing ethyl levulinate (EL). GVL not only aids in the dissolution and depolymerization of cellulose, but also enhances the acidity and catalytic activity of the Al species, resulting in higher yields and faster reaction rates for EL production.
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)
Article
Chemistry, Physical
Rulu Huang, Yuan Cheng, Huai Liu, Lincai Peng, Junhua Zhang
Summary: A modified Zr-FDCA hybrid catalyst with the introduction of phosphotungstic acid (HPWO) exhibited outstanding catalytic performance in the conversion of LvA into GVL, with a GVL yield of 95.4% and a high formation rate of GVL (12.72 mmol g(-1) h(-1)). It also showed excellent cycle stability and could be used for at least five consecutive runs with no significant loss in catalytic activity.
SUSTAINABLE ENERGY & FUELS
(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)
