APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Zhengliang Zhang,Zhiwei Zhang,Xubin Zhang,Fumin Wang,Zheng Wang,Yongwang Li,Xingtao Wang,Rosine Ahishakiye,Xu Zhang
Exploring low-cost green catalysts to achieve green organic chemicals and fuels from biomass is one of the crucial ways to solve the energy crisis. The 20 wt% Co-CoO x /AC catalysts were prepared to achieve the one-pot conversion of furfural to 2-methylfuran under milder reaction conditions (120 °C, 2.5 MPa H 2 ), shorter reaction time (5 h) and less catalyst dosage by regulating the ratio of metal to oxide species. The yield of 2-methylfuran reached 87.4 % is achieved under 20 wt% Co-CoO x /AC catalyst conditions, and there was no significant degradation of all catalyst properties after five cycles. Characterization results showed that the active components in the catalyst were present as Co 0 species with CoO x species. The reaction mechanism was explained by combining the characterization results, experimental data and DFT calculations. The formyl group of the furfural side chain is first adsorbed on the Co 0 species, and furfuryl alcohol is produced in the presence of the Co 0 species. Subsequently, the CoO x species adsorbs the C O bond on the side chain, which is broken in the presence of the CoO x species to form 2-methylfuran. The excellent catalytic activity of the 20 wt% Co-CoO x /AC catalyst provide a promising application for preparing 2-methylfuran by hydrodeoxygenation of furfural.
研究领域:
化学工程
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催化科学
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生物质转化
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS A-GENERAL
·
2025
·
IF 4.8
Jun He,Shuang Xiang,Xiaohui Liu,Yanqin Wang
High selective hydrogenolysis of furfural to 2-methylfuran over a metal oxide-based catalyst is promising and challenging. In this paper, a Zr-modified CoO x (Zr 1 Co 6 -325) catalyst was prepared via a simple co-precipitation/reduction and exhibited superior initial activity and remarkable circular stability during the hydrogenolysis of furfural (FUR) to 2-methylfuran (2-MF). As high as 71.2 % yield of 2-MF was achieved at 170 °C for 2 h and nearly no deactivation was found after five cycles, much better than those of reduced Co 3 O 4 catalyst (Co 3 O 4 -250). Comprehensive studies demonstrated that the over-reduction of the CoO species during the reaction process was the main cause of catalyst deactivation. The introduction of Zr species, on the one hand, inhibited the over-reduction of CoO species during reaction processes, thereby enhancing the circular stability. On the other hand, the introduction of Zr species promoted the activation and dissociation of H 2 and therefore improved the activity. This research unveiled the stabilizing effect of Zr species on CoO, providing guidance for the design of high-stable CoO-based catalysts.
研究领域:
催化化学
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材料科学
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产品关联
DOI
高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 20
·e01019
·
IF 2
Siqi Wang,Yazhou Wang,Yonggang Ji,Zhenye Li,Yueli Dai
Graphical This study investigated the reactivity of nickel phosphide, copper phosphide, and cobalt phosphide catalysts in the hydrodeoxygenation of furfural to 2-methylfuran. Appropriate acidic and adsorbent configurations were employed to facilitate the production of 2-methylfuran. Among the catalysts tested, the copper phosphide catalyst exhibited the highest selectivity for 2-methylfuran. A series of transition metal (Ni, Cu, and Co) phosphides were prepared by temperature programmed reduction method. The effect of the metal species and the initial P/Cu molar ratios on the catalytic activity of furfural hydrodeoxygenation was investigated, and the reaction conditions were optimized. Complete conversion of furfural was achieved under conditions of 220 °C and 15 bar for 4 h over Ni 2 P, CoP, or Cu 3 P catalysts. Notably, a selectivity of 95% of 2-methylfuran was attained when the Cu 3 P-3 was employed as a catalyst. The experimental results showed that a suitable P/Cu molar ratio could promote the conversion of the intermediate furfuryl alcohol to 2-methylfuran while avoiding the generation of overhydrogenation products. Under the optimal reaction conditions, the Cu 3 P-3 catalyst could be used for four times with only a slight decrease in catalytic performance.
研究领域:
化学工程
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催化科学
✓ 已验证
产品关联
DOI
高影响因子
CATALYSIS TODAY
·
2024
·
IF 5.2
Guojia Li,Yan Xu,Lanxin Ye,Panpan Wang,Siyuan Peng,Yuan Zhou,Hongxia Liu,Qixun Shi,Chuan Wang
The uniformity of nanoparticles on supported catalysts is crucial for the understanding of their active sites. Compared to traditional synthesis methods, continuous flow method can effectively control the size of nanoparticles. Herein, we successfully synthesized a series of Pt/C catalysts with uniform Pt nanoparticles by continuous flow method and discriminated the active sites for 2-methylfuran (2-MF) hydrogenation. The activation energy and XPS characterization results indicate that the 2-MF hydrogenation is mainly governed by Pt geometric properties for Pt nanoparticles ≥ 3.05 nm. Based on the truncated cuboctahedron model, the dominant active sites for 2-MF hydrogenation are further discriminated as follows: the (111) facet for 2-MF conversion, the (100) facet for 2-pentanone (2-PN) formation, the edge site for 2-methyltetrahydrofuran (2-MTHF) formation and the corner site for 2-pentanol (2-POL) formation. For Pt nanoparticles < 3.05 nm, the reaction is mainly influenced by the electronic properties of Pt.
研究领域:
催化化学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
RSC Sustainability
·
2024
·
IF 0
Yuanyuan Han,Xing Zhang,Wei Wang,Shaobo Guo,Xiaohui Ji,Guangyi Li
Biomass energy stands at the forefront of remedial strategies for the current energy deficit and has garnered considerable attention. The deployment of highly efficient catalysts is pivotal to the success of this energy form. Prevailing literature established that high-valent metal presence contributed significantly to the hydrogenation of furfural to prepare 2-methylfuran. In this study, we elucidated the efficacy of a monometallic catalyst consisting solely of cobalt and its oxides, denoted as Co/CoOx, in the catalytic transformation of furfural derived from lignocellulosic biomass into 2-methylfuran. Leveraging the economical Co/CoOx catalyst, in conjunction with minimal addition of hydroquinone, we accomplished the selective hydrodeoxygenation of furfural, culminating in an augmented yield of 2-MF up to 73%. This investigation is the inaugural confirmation that minuscule quantities of hydroquinone can efficaciously mitigate side reactions such as the polymerization of furfural within the selective hydrodeoxygenation process. The Co/CoOx catalyst was characterized through an array of analytical techniques, including XRD, H2-TPR and N2-adsorption. These characterization studies unveiled that the optimal selectivity for 2-methylfuran was achieved when the ratio of Co0 : Co2+ in the catalyst approached approximately 95%.
研究领域:
生物质能
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催化化学
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有机合成
✓ 已验证
DOI
Energy Technology
·
2017
·Vol. 6
·期 6
·1060-1066
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IF 2.789
Hu Li,Zhenyou Gui,Song Yang,Zhiwen Qi,Shunmugavel Saravanamurugan,Anders Riisager
Jet and diesel fuels are typically composed of C 9 -C 14 and C 12 -C 20 hydrocarbons, respectively, but the carbon-chain length of sugar-derived aldehydes and furanic compounds is no longer than C 6 . Here, a cascade catalytic process involving alkylation and hydrodeoxygenation (HDO) of 2-methylfuran (2-MF) with different aldehydes is conducted to directly produce long-chain alkanes with exclusive carbon number of C 11 -C 17 in overall yields of 50–84 %. Preliminary investigations on the alkylation of 2-MF and formalin show that the relative density of Lewis and Brønsted acidic sites of zeolitic materials remarkably affect their catalytic activity and selectivity. Sn-beta(12.5) with pronounced Lewis acidity (including the acid density and strength) exhibits higher catalytic performance in the alkylation than other zeolites, producing long-chain oxygenates in 58–92 % yields. Even in aqueous solution, the Sn-beta(12.5) catalyst can be reused for at least six reaction cycles with almost constant reactivity. More importantly, the co-addition of Hf(OTf) 4 with Pd/C greatly promotes C−O bond cleavage of the furan-ring during the HDO process under mild reaction conditions, producing long-chain alkanes in high yields of 84–94 %.
研究领域:
化学工程
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
RARE METALS
·
2021
·Vol. 41
·期 3
·889-900
·
IF 4.003
Wang Ting,Zhang Bin,Yin Chao-Qun,Zhao Jun,Liu Xiang,Wang Chuan
The selective hydrogenolysis of C–O bond in furfural and its derivatives provides a sustainable route for transforming biomass-derived feedstocks into valued chemicals. Currently, the development of efficient catalysts which can effectively cleavage C–O bond under mild conditions remains a critical challenge. The present work reports Pt catalysts supported on multi-walled carbon nanotubes (MWNT) which are active in 2-methylfuran (2-MF) hydrogenolysis to form pentanols in liquid phase under mild conditions. The impact of various catalyst supports, active metals and reaction conditions in terms of metal loadings, solvent, time, pressure, etc., were explored. The 5 wt% Pt/MWNT catalyst demonstrated an excellent activity and selectivity with 100% 2-MF conversion and 53% pentanols (POLs) yield under 1 MPa H 2 at an exceptional low temperature of 25 °C. The reaction mechanism was studied combing both the reactivity tests and characterization results, and it is found that the better catalytic performances of Pt/MWNT were correlated closely to the size of Pt nanoparticles and their interactions with the underlying MWNT support. Accordingly, a reaction pathway involving the adsorption of 2-MF parallel to the Pt nanoparticles and its subsequently selective C–O hydrogenolysis was proposed. This work showcases a promising catalyst for room-temperature biofuel production. Graphical abstract
研究领域:
化学工程
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催化材料
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生物质转化
✓ 已验证
DOI
高影响因子
JOURNAL OF CATALYSIS
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2022
·
IF 8.047
Xin-Xin Fu,Jian-Peng Li,Zhuo-Qian Li,Yan Liu,Chen-Xiao Feng,Hai-Yang Wang,Zhi-Peng Zhao,Qiao-Yun Liu,Zhong-Yi Liu,Zhi-Kun Peng
Biomass is a promising renewable carbon resource, and bio-based platform molecules such as furan derivatives play an important role in the green manufacturing of high value-added chemicals. Of these, the conversion of 2-methylfuran (2-MF) to 3-acetyl-1-propanol (3-AP) over a bifunctional catalyst has attracted significant interest. However, bifunctional catalysts prepared by traditional method suffer from poor catalytic performance and limited stability due to the agglomeration of metal NPs. Here, Pd@HZSM-5, in which Pd NPs were encapsulated in HZSM-5 in situ showed improved stability and 3-AP yield. The highest yield of 3-AP (90.6%) to date was obtained with a nearly 100% conversion of 2-MF. The catalytic performance over a series of Pd@Zeolite confirms the superiority of the encapsulation effect, which is ascribed to the optimal adjustment of metal/acid balance. The Pd@HZSM-5 catalyst displayed excellent stability due to the encapsulation structure, which restricts the Pd NPs agglomeration. The highest yield of 3-AP was obtained at a high concentration of 2-MF (60%), which implies a promising strategy for the green industrial manufacture of 3-AP. This work reports a new bifunctional catalytic system for the green synthesis of 3-AP from 2-MF, thus stimulating the downstream biomass market.
研究领域:
催化化学
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生物质能
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绿色化学
✓ 已验证
产品关联
DOI
高影响因子
FUEL
·
2019
·
IF 5.128
Weijie Geng,Wenxiu Li,Lin Liu,Junhai Liu,Liying Liu,Xiangjin Kong
The hydrodeoxygenation of furfural to 2-methylfuran is of great significance for biomass valorization. However, the design of efficient catalysts based on non-noble metals is still a huge challenge for this transformation. In this work, a uniformly dispersed Cu-Cu 2 O/N-RGO nanocomposite was assembled via microwave assisted reduction and ammonia evaporation synthetic strategy. Under the optimum conditions, the yield of 2-methylfuran reached 95.5%, and there was no catalyst deactivation was observed within 5 cycles. The characterization results confirmed that the activity of the catalyst was mainly attributed to the synergistic effects of surface Cu 0 and Cu + species in catalyst, which were originated from partial reduction of CuO species due to the strong interaction between Cu precursors and support. Furthermore, this strong interaction also promised stability of the catalyst which could immobilize copper particles to resist leaching.
研究领域:
化学工程
·
催化材料
✓ 已验证
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2025
·
IF 5.2
Yue Wang,Wenxiu Li,Tao Zhang
The separation of 2-methylfuran (2-MF) and methanol (MeOH) azeotropes presents a critical challenge in biofuel production due to the efficiency and sustainability limitations of conventional methods. In this study, three ionic liquids (ILs)—1-ethyl-3-methylimidazolium hydrogen sulfate ([EMIM][HSO 4 ]), 1-ethyl-3-methylimidazolium thiocyanate ([EMIM][SCN]), and 1-ethyl-3-methylimidazolium dicyanamide ([EMIM][DCA])—were selected as green extractants for 2-MF – MeOH azeotropic separation. Ternary liquid-liquid equilibrium (LLE) data for the system 2-MF (1) + MeOH (2) + IL (3) were experimentally determined at 303.15 K and 101.325 kPa. The order of both distribution coefficient and selectivity is [EMIM][HSO 4 ] > [EMIM][SCN] > [EMIM][DCA]. Then, the NRTL model was subsequently employed to regress the experimental data, and the accuracy of the NRTL binary parameters was verified through the “GMcal_TieLinesLL” tool. Further mechanistic investigation integrated theoretical approaches (ESP, IGMH, RDF, and MSD analysis) with experimental validation via FT-IR spectroscopy. This combined methodology conclusively elucidates the pivotal role of hydrogen bonding in the extraction and separation process.
研究领域:
化学工程
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分离技术
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物理化学
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绿色化学
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生物燃料
✓ 已验证
产品关联
DOI
高影响因子
RESEARCH ON CHEMICAL INTERMEDIATES
·
2016
·Vol. 43
·期 3
·1557-1574
·
IF 1.833
Xiong Yuannan,Chen Wenqi,Zeng Aiwu
The liquid phase acylation of 2-methylfuran with acetic anhydride over modified Hβ zeolite was first conducted in a continuous flow reactor. The deactivation of Hβ zeolites was attributed to strong adsorption of reactants or products and was verified by GC–MS and 13 C MAS NMR. Deactivated zeolites can be regenerated to their original state by calcination. The acidic properties was adjusted by surface modification on Hβ, the maximum yield of 89.5 mol% and selectivity of 100 % were obtained over tartaric acid modified by Hβ. The deposition of tetraethoxysilane to silica on Hβ contributed to enhancing the catalytic stability. Combined with the results of NH 3 -TPD and Py-FTIR, the amount of Broensted acids played a major role on catalytic activity. A close relationship between the catalytic stability and the ratio of the amount of strong to weak acids at 1:1 was highlighted here. The solvents' effect on the catalytic performances was examined, and 1,2-dichloroethane with moderate polarity exerted a positive effect on catalytic stability.
研究领域:
化学工程
·
催化材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2025
·
IF 3
Wang Yue,Li Wenxiu,Wang Pengfei,Zhang Tao
The formation of azeotropic mixtures between 2-methylfuran (2-MF) and methanol (MeOH) during catalytic hydrogenation of furfural poses a significant challenge for their separation. To address this issue, ethylene glycol (EG) was systematically evaluated as a sustainable extractant for liquid-liquid extraction of the 2-MF-MeOH azeotrope. The σ -profiles of five candidate solvents, tetrahydrofuran (THF), dimethylformamide (DMF), dimethyl sulfoxide (DMSO), dimethylacetamide (DMAC), and EG were analyzed. EG was identified as the optimal extractant due to its superior hydrogen-bonding capability. Key operational parameters including equilibrium temperature and azeotropic composition were experimentally optimized. Then, ternary liquidliquid phase equilibrium (LLE) data of 2-MF(1)+MeOH(2)+EG(3) were measured. The non-random two-liquid (NRTL) model demonstrated excellent correlation with LLE data (RMSD<2%), validating its reliability for process simulation. Multi-scale analysis methods for separation mechanism, such as electrostatic potential (ESP) mapping, independent gradient model based on Hirshfeld partition (IGMH), and molecular dynamics simulation were used to confirm the sites and types of interaction. This fundamental understanding of molecular interactions provides critical insights for designing sustainable separation processes in biomass-derived chemical production.
研究领域:
化学工程
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生物质能源
·
分离科学
·
物理化学
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绿色溶剂
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分子模拟
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热力学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）