Nanomaterials
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2019
·Vol. 9
·期 12
·1698
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IF 4.034
Yanliang Yang,Dongsheng Deng,Dong Sui,Yanfu Xie,Dongmi Li,Ying Duan
The hydrogenation of furan ring in the biomass-derived furans is of great importance for the conversion of biomass to valuable chemicals. Fabrication of high activity and selectivity catalyst for this hydrogenation under mild conditions was one of the focuses of this research. In this manuscript, UiO-66-v, in which vinyl bonded to the benzene ring, was first prepared. Then, the uniformly distributed vinyl was used as the reductant for the preparation of Pd/UiO-66-v. The catalyst was characterized by X-ray diffraction, thermogravimetric, N2physical adsorption/desorption, X-ray photoelectron spectroscopy, scanning electron microscope, transmission electron microscopy, energy dispersive spectrometer elemental mappings, and inductively coupled plasma atomic emission spectroscopy to find the Pd/UiO-66-v had a narrow palladium nanoparticles size of 3–5 nm and maintained the structure and thermal stability of UiO-66-v. The Pd/UiO-66-v was used for the hydrogenation of furfuryl alcohol to tetrahydrofurfuryl alcohol in water. 99% conversion of furfuryl alcohol was obtained with 90% selectivity to tetrahydrofurfuryl alcohol after reacted at 0.5 MPa H2, 303 K for 12 h. The Pd/UiO-66-v was proved to be effective for the hydrogenation of furan ring in furans and could be used for at least five times.Keywords:furfuryl alcohol;hydrogenation;tetrahydrofurfuryl alcohol;Pd/UiO-66-v;water solvent
研究领域:
催化化学
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生物质转化
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绿色化学
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产品关联
DOI
PubMed
高影响因子
CATALYSIS LETTERS
·
2021
·Vol. 153
·期 6
·1666-1675
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IF 3.186
Wang Yuan,Liu Shanshan,Zhang Yidong,Guo Qirui
Hydrogenation of biomass-derived furfuryl alcohol to widely used tetrahydrofurfuryl alcohol is an important industrial route, which however calls for a more efficient catalyst. In this work, a highly selective and stable Ni-C-Al 2 O 3 catalyst for furfuryl alcohol hydrogenation to tetrahydrofurfuryl alcohol is reported. The catalyst precursor is prepared by in-situ growth of Ni-based metal organic frameworks (Ni-BTC) on Al 2 O 3 and then the precursor undergoes thermal decomposition to obtain the catalyst directly. For comparison, Ni-C/Al 2 O 3 acquired from pyrolysis of physically mixed Ni-MOFs with Al 2 O 3 and Ni/Al 2 O 3 prepared by impregnation method are also tested as the hydrogenation catalysts. The prepared catalysts are characterized by a series of techniques, including XRD, FT-IR, TG, TEM, SEM, XPS and BET to reveal the relationship between the catalysts structure and their performance. The results show that small metal Ni particle size and appropriate interaction between Ni and the support, which benefit from the in-situ preparation method are key factors that ensure the high furfuryl alcohol conversion (99.8%) and high selectivity to tetrahydrofurfuryl alcohol (98.2%) at moderate reaction conditions (120 °C, 30 min, 4 MPa H 2 ). Graphical Abstract
研究领域:
催化化学
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材料科学
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生物质转化
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DOI
高影响因子
MOLECULES
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2019
·Vol. 24
·期 10
·1881
·
IF 3.06
Geng Zhao,Ming Liu,Xinkui Xia,Li Li,Bayin Xu
In this study, a carbon-based solid acid was created through the sulfonation of carbon obtained from the hydrothermal pretreatment of glucose. Additionally, ethyl levulinate, a viable liquid biofuel, was produced from furfuryl alcohol using the environmentally benign and low-cost catalyst in ethanol. Studies for optimizing the reaction conditions, such as reaction time, temperature, and catalyst loading, were performed. Under the optimal conditions, a maximum ethyl levulinate yield of 67.1% was obtained. The recovered catalyst activity (Ethyl levulinate yield 57.3%) remained high after being used four times, and it was easily regenerated with a simple sulfonation process. Moreover, the catalyst was characterized using FT-IR, XRD, SEM, elemental analysis, and acid-base titration techniques.Keywords:furfuryl alcohol;ethanol;ethyl levulinate;carbon-based solid acid
研究领域:
化学工程
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可再生资源与环境科学
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产品关联
DOI
PubMed
高影响因子
CATALYSIS LETTERS
·
2025
·Vol. 155
·期 4
·1-8
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IF 2.4
Zhang Qian,Li Yuanzheng,Pan Zhengyi,Wang Guang-Hui
Catalytic transfer hydrogenation (CTH) of α , β -unsaturated aldehydes to α , β -unsaturated alcohols over metal oxide catalysts is of potential for industrial application. Herein, we have developed a Ni/f - Al 2 O 3 catalyst comprising atomically dispersed Ni δ + (2 < δ < 3) species on porous leaf-like Al 2 O 3 , over which a > 97% yield of furfuryl alcohol (FOL) from CTH of furfural (FFR) is obtained with a turnover frequency (TOF) of 216 h − 1 . Most importantly, the catalyst can be recycled at least 6 times without obvious loss of activity. Its superior catalytic performance can be attributed to the abundant and stable Ni δ + -type acid-base pairs on the surface of Ni/f - Al 2 O 3 .
研究领域:
化学工程
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催化科学
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产品关联
DOI
高影响因子
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
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2019
·Vol. 66
·期 12
·1610-1618
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IF 1.188
Tao Wang,Aiyun Hu,Haijun Wang,Yongmei Xia
Layered double hydroxides (LDHs) and their derivatives have been reported to be widely used as heterogeneous catalysts in various reactions. Herein, Ni-Fe LDHs with the controlled Ni/Fe molar ratios (2:1, 3:1, 4:1) were synthesized via an easy hydrothermal method, which were used to catalyze the selective reduction of biomass-derived furfural into furfuryl alcohol using 2-propanol as a H-donor under autogenous pressure and characterized using FT-IR, XRD, TGA, BET, SEM, NH 3 -TPD, and CO 2 -TPD. It was found that the LDH with a Ni/Fe molar ratio of 3:1 demonstrated the best catalytic activity among the LDHs with different Ni/Fe molar ratios, which showed 97.0% conversion of furfural and 90.2% yield of furfuryl alcohol at 140°C for 5 hr. This was attributable to the synergistic effect of acidic sites and basic sites of the catalyst.
研究领域:
化学工程
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催化材料
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产品关联
DOI
高影响因子
GREEN CHEMISTRY
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2013
·Vol. 16
·期 3
·1436-1443
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IF 6.828
Guofeng Wang,Zhanquan Zhang,Linhua Song
The production of alkyl levulinates from furfuryl alcohol (FAL) in alcohol media was investigated at moderate temperature in the presence of Brønsted acidic ionic liquids. The reaction was examined and optimized under batch conditions, where it was found that furfuryl alcohol was rapidly and almost quantitatively converted into intermediate products including 2-alkoxymethylfuran and 4,5,5-trialkoxypentan-2-one, and high alkyl levulinates yield of 95% can be achieved after reaching a steady state in 2 h. An advantage of this catalyst system is that undesired dialkyl ether (DEE) formed by a side reaction of the dehydration of alcohol is negligible. The Hammett method was used to determine the acidities of these ionic liquids, which indicated that the acidity and the molecular structure have strong effects on the catalytic activity of ionic liquids. Based on the experimental results, a possible mechanism for the alcoholysis of FAL is proposed.
研究领域:
化学工程
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催化化学
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产品关联
DOI
高影响因子
CATALYSIS LETTERS
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2022
·Vol. 152
·期 12
·3537-3547
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IF 2.936
Liu Zonghui,Zhang Zhongze,Wen Zhe,Xue Bing
Development of simple and high performance solid catalysts for the utilization of biomass has become an important research topic in heterogeneous catalysis and sustainable chemistry. Herein, a highly efficient catalytic system was studied for the catalytic transfer hydrogenation of furfural to high value furfuryl alcohol over a series of acidic or basic oxides catalysts. Among those oxides, acidic Al 2 O 3 is identified as the most effective for FAL production, giving a FUR conversion as high as 40% (FUR consumption rate was 186 mmol g cat −1 h −1 ) and FAL selectivity of 99% after only 5 min at 150 °C using 2-propanol as the H-donor and solvent. Furthermore, the as prepared Al 2 O 3 give an Ea value of 15.2 kJ/mol, which is much lower than other complex catalysts in the literatures. Correlating the catalyst performance with its physical and chemical properties uncovers that the large specific surface area and high acidity of Al 2 O 3 would be the key to the catalyst performance. Graphical Abstract
研究领域:
催化化学
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可持续化学
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产品关联
DOI
高影响因子
CATALYSIS COMMUNICATIONS
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2023
·
IF 3.7
Linsong Yang,Yuting Liu,Yu Peng,Yu-Cai He,Cuiluan Ma
The feasibility of chemobiocatalytic production of furfuryl alcohol from biomass-derived D -xylose was investigated using a tandem catalysis with deep eutectic solvent betaine:benzenesulfonic acid (DES BE:BA) and recombinant Escherichia coli DCF cell. The DES BE:BA (2.5 wt%) was applied to catalyze D -xylose under 170 °C for 0.5 h, resulting in a furfural yield of 51.1%. Consequently, recombinant Escherichia coli DCF fully transformed D -xylose-derived furfural to furfuryl alcohol in DES BE:BA-water under pH 7.5 and 40 °C using HCOONa as cosubstrate. This eco-friendly chemobiocatalytic strategy was successfully applied for transforming D -xylose to furfuryl alcohol in DES BE:BA-water.
研究领域:
生物化学
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可持续化学
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产品关联
DOI
高影响因子
APPLIED CATALYSIS A-GENERAL
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2019
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IF 4.63
Shiqiu Zhang,Xue Yang,Kui Zheng,Ruihao Xiao,Qidong Hou,Bangjun Liu,Meiting Ju,Le Liu
It is a promising pathway to reduce the dependence on fossil fuels and obtain the bio-fuels or chemicals production from biomass derivatives. The conversion from furfural (FFR) to furfuryl alcohol (FFA) is an important industrial technology using the liquid-phase hydrogenation method with external hydrogen gas. However, the natural environment is threatened by the security of external hydrogen gas, toxicant catalyst, and the high energy consumption. Recently, in-situ hydrogenation is a novel method to converse FFR to FFA at mild reaction conditions to replace the dangerous external hydrogen gas. In this paper, we reported an efficient in-situ hydrogenation method via aqueous-phase reforming of methanol using Pt loading MgTiO 3 (perovskite-type material) at mild conditions. Pt nanoparticles were high dispersion on the nano-MgTiO 3 -450 surface, and CH 3 OH and H 2 O were reformed to produce hydrogen gas on the catalyst surface through the action of Pt nanoparticles. A part of active hydrogen could be involved in the reduction of Pt 2+ to Pt 0 , resulting in the perfect recyclability of the Pt@MT-450 catalyst. The other part of active hydrogen were participated in the hydrogenation of FFR conversion to FFA under the interaction of Pt and Mg elements. The in-situ hydrogenation of FFR to FFA using Pt@MT-450 is an effectively pathway to reduce the reaction conditions than that with external hydrogen gas.
研究领域:
能源化学
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催化化学
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环境科学
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产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
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2016
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IF 5.267
Fan Wang,Zehui Zhang
Catalytic transfer hydrogenation of the C═O bond has been considered to be one of the most important processes for the synthesis of fuels and chemicals. In this study, we have developed a metal-free transfer hydrogenation of furfural into furfuryl alcohol and some other valuable carbonyl compounds into alcohols as the hydrogen donors. Hydroxyapatite-encapsulated magnetic γ-Fe2O3 (γ-Fe2O3@HAP) acted as a magnetic base to promote this transfer hydrogenation with iso-propanol as the hydrogen donor. The catalytic performance of the γ-Fe2O3@HAP catalyst was greatly affected by the structure of alcohol. iso-Propanol was the best hydrogen donor for the transfer hydrogenation. In addition, the reaction temperature and the catalyst loading also affected this reaction. The highest yield of furfuryl alcohol reached 91.7% at a furfural conversion of 96.2%. Furthermore, this method was also useful for the transfer hydrogenation of other important carbonyl compounds into value-added chemicals and fuels. After the reaction, the γ-Fe2O3@HAP catalyst could be easily collected with the assistant of a magnet, and reused for six runs without the loss of its catalytic activity.
研究领域:
化学工程
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催化科学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
·
IF 13.3
Kaihao Wang,Qu Wang,Li Wang,Dong Chen,Yuhong Ma,Wantai Yang
Preparation of polyolefins possessing superior flame retardant and mechanical properties has always been a hot research topic. Herein, a novel high-performance flame retardant was designed and prepared to address the dilemma between flame retardancy and mechanical properties. Through self-stabilized precipitation polymerization of furfuryl alcohol (FA) and maleic anhydride (Ma), followed by successive amination and phosphorylation treatment, bio-based phosphorylated FMa microspheres (P-FMa) were successfully obtained. Benefiting from strong synergistic effect between P-FMa and ammonium polyphosphate (APP), the polypropylene (PP)/APP/P-FMa composites exhibited excellent flame retardant and smoke suppression properties. At a dosage of only 19 wt% APP/P-FMa, the PP/APP/P-FMa reached UL-94 V-0 rating and a limiting oxygen index of 32.2 %, and the peak heat release rate and peak smoke production rate decreased by 76.1 % and 52.6 % compared with neat PP , respectively, due to the formation of denser and firmer char layer. Notably, the tensile strength of PP/APP/P-FMa maintained at a high level of 43.2 MPa. More importantly, the impact strength reached 10.5 kJ/m 2 , increase by 138.6 % compared to PP/APP, mainly attributed to improved dispersion and compatibility between APP/P-FMa and PP matrix. Owing to its ability to simultaneously improve flame retardant and mechanical properties, P-FMa possesses great potiential as a high-performance flame-retardant filler.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
FUEL
·
2024
·
IF 6.7
Jun Zhang,Yaoxin Xiao,Rui Shan,Haoran Yuan,Yong Chen
In the present research, calcium decorated copper@nitrogen-doped carbon (marked as Cu 1 Ca x @CN) derived from biomass was constructed for highly selective hydrogenation of bio-based furfural (FFR), which remarkably favored furan ring hydrogenation for tetrahydrofurfuryl alcohol (THFA) formation via regulating the hydrogenation path. Remarkably, the in-situ generated basic sites from N- and Ca-containing species were beneficial to the good metal dispersion as well as the chemical activation of aldehyde and C=C groups, thus favoring the FFR-to-THFA transformation. The optimal basic density-to-copper mass ratio in a range of 3.0 ∼ 4.0 was attained, in consideration of THFA generation. The as-prepared Cu 1 Ca 0.87 @CN catalyst could afford full FFR conversion as well as 75.6 % THFA yield under 3 MPa H 2 atmosphere, which also exhibited excellent stability and could be recycled four times without any deactivation. In addition, the basic sites in the as-prepared Cu 1 Ca x @CN samples were capable of activating both the C=O and C=C bonds, and the activation of C=O bond took precedence over that of C=C bond, especially in the case of relative low temperatures. Plausible reaction mechanism for FFR-to-THFA transformation under the synergistic effect of active Cu 0 center and basic sites was proposed in detail.
研究领域:
催化化学
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生物质能
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材料科学
✓ 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）