Journal of Biobased Materials and Bioenergy
·
2018
·Vol. 12
·期 4
·321-329
·
IF 2.993
Liao Longfei,Liu Ying,Wu Shubin
A series of V2O5/SBA-15 catalysts with various loadings of 5, 10, 15 and 20% (by weight) V2O5 have been prepared by molecular designed dispersion (MDD) method and are characterized by N2 adsorption–desorption, Fourier Transform-Raman
spectroscopy (FT-Raman), transmission electron microscopy (TEM), low angle and wide-angle XRD, H2 temperature programmed reduction (TPR), inductively coupled plasma-optical emission spectrometry (ICP-OES), and Ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis, DRS) techniques.
Among V2O5/SBA-15 catalysts, the 10% V2O5/SBA-15 catalyst exhibited 88.6% 5-hydroxymethylfurfural (HMF) conversion with 57.9% yield of 2,5-diformylfuran (DFF) when molecular oxygen (0.28 MPa) and toluene were employed as green oxidant and organic
solvent respectively at 110 °C. The remarkable performance of 10% V2O5/SBA-15 catalyst is owing to the isolated distribution of uniform sized nanovanadium species which are dispersed on the pore surfaces of the hexagonally well-ordered mesoporous material SBA-15 silica
support.
研究领域:
催化化学
·
绿色化学
·
材料科学
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2019
·
IF 6.97
Jiahuan An,Guohan Sun,Haian Xia
An efficient method for the catalytic aerobic oxidation of 5-hydroxymethylfurfural (HMF) to 5-hydroxymethyl-2-furancarboxylic acid (HMFCA) was developed using size-controlled Ag nanoparticles (NPs) in an aqueous solution. A series of AgNPs catalysts stabilized by poly(vinylpyrrolidone) (PVP) supported on ZrO2with different Ag loadings were prepared. XRD, TEM, XPS, and FT-IR techniques were used to characterize the nature of these catalysts. The impact of the Ag loading, the molar ratio of PVP to Ag, the reaction temperature and time, and the base type on the conversion of HMF and yield of HMFCA was investigated. The reaction results show that Ag–PVP/ZrO2 catalysts with a bigger particle size (>10 nm) exhibited superior catalytic activity and HMFCA selectivity compared to Ag/ZrO2 with a smaller particle size (ca. 8.5 nm), indicating that the addition of PVP has a promoting effect on the aerobic oxidation of HMF into HMFCA. The 2.5%Ag–PVP/ZrO2(1:1) catalyst presents an excellent activity with 100% conversion of HMF and 98.2% yield of HMFCA in oxygen flow at 20 °C for 2 h.The basicity is also very critical to obtain a high HMFCA yield, especially for the use of high concentration of HMF; i.e., Ca(OH)2 afforded a higher selectivity toward HMFCA compared to the use of NaOH or Na2CO3 under an identical reaction condition. It is revealed for the first time that the presence of a capping agent (PVP) can effectively modulate the metal–support interaction. Interestingly, it is found that the relatively weak interaction between Ag NPs and the ZrO2 support has a beneficial effect on the conversion of HMF. This work provides new insights into the relationship between the metal–support interaction mediated by PVP molecule and the activity and selectivity of the oxidation reaction.
研究领域:
催化化学
·
材料科学
·
绿色化学
✓ 已验证
产品关联
DOI
高影响因子
Analytical Methods
·
2024
·Vol. 16
·期 23
·3766-3773
·
IF 2.7
Xin He,Caiyun Jiang,Jie Yang,Shuangchao Sheng,Yuping Wang
5-Hydroxymethylfurfural (5-HMF) is a heterocyclic compound with six carbons commonly found in heat-treated carbohydrate-rich foods. 5-HMF exceeding the specified limit is cytotoxic to the human body, and will be converted into carcinogenic substances (5-sulfoxide methyl furfural) after long-term accumulation in the body. Therefore, it is highly necessary to develop a sensitive and accurate detection method for 5-HMF in the field of food safety. In this study, a photoelectric sensing method was developed for the highly sensitive detection of 5-HMF using hollow TiO2 nanospheres successfully synthesized by template, sol–gel and lye etching methods. The structure and composition of the materials were studied by XRD, XPS, SEM and TEM. The electrochemical and photoelectrochemical properties of an h-TiO2 electrode probe based on indium tin oxide (ITO) slides were investigated. The results indicated that the linear relationship of 5-HMF is good in the concentration range of 10−11–10−7 M, and the detection limit of 5-HMF is 0.001 nM. Moreover, the PEC sensor shows high accuracy in the detection of actual samples.
研究领域:
食品安全
·
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
GREEN CHEMISTRY
·
2021
·Vol. 24
·期 2
·877-884
·
IF 10.182
Baolong Zhang,Hui Fu,Tiancheng Mu
Electrochemical oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) has drawn wide attention recently. Rational interface engineering can modulate the electronic structure, tune the adsorption energy and endow the hybrid material with more active sites for HMF electrochemical oxidation. Herein, we propose a strategy for the synthesis of metal sulfide/metal phosphide (MSx/MPy, M = Co, Fe, Ni…) nanotube arrays with abundant interfaces by the sequential electrodeposition interface engineering method. Since Ni-based electrocatalysts show high efficiency for the electrochemical oxidation of HMF, we designed and synthesized interface-rich heterogeneous NiSx/Ni2P nanotube arrays. The abundant interfaces promote electron transfer between NiSx and Ni2P, which synergistically improves the oxidation state of the Ni species and further enhances the electrocatalytic performance of HMF oxidation. The NiSx/Ni2P electrocatalyst shows superb HMF oxidation activities with a low onset potential of 1.25 V vs. RHE. A current density of 20 mA cm−2 can be reached at 1.346 V vs. RHE, which is reduced by 204 mV compared with that with water oxidation. Chronoamperometry electrolysis reveals that HMF conversion is nearly 100% and FDCA selectivity can reach 98.5%.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2021
·Vol. 50
·期 31
·10922-10927
·
IF 4.39
Wei Wang,Fanhao Kong,Zhe Zhang,Lan Yang,Min Wang
Electrochemical oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is an intriguing way of biomass conversion. Herein, a sulfidation of nickel foam (Ni2S3/NF) was attempted via a hydrothermal method, achieving high selectivity and efficiency for HMF oxidation. The optimized Ni2S3/NF electrode exhibits a nearly 100% conversion of HMF, 98% yield of FDCA, and 94% high faradaic efficiency. This material is stable and retains activity after 6 consecutive measurements. This work provides a facile route to design and prepare electrocatalysts for biomass upgrading.
研究领域:
化学工程
·
电化学
·
可再生资源利用
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RENEWABLE ENERGY
·
2023
·
IF 8.7
Yixuan Yu,Huai Liu,Junhua Zhang,Heng Zhang,Yong Sun,Lincai Peng
Designing highly efficient non-noble metal catalyst for the selective hydrogenolysis of biomass derivatives to fuels and fine chemicals is a key pursuit for sustainable chemical industry but substantially challenging. In this contribution, we report, for the first time, the construction of amorphous bimetal Ni–Fe borides for efficient catalytic hydrogenolysis of biomass-derived 5-hydroxymethylfurfural (HMF) into 2,5-dimethylfuran (DMF) as a promising biofuel candidate. The as-prepared Ni 1.52 Fe 0.36 BO x catalyst afforded a near-quantitative DMF yield using ethanol as a green solvent under relatively mild operating conditions (1 MPa H 2 , 160 °C and 1 h), leading to an excellent DMF formation rate of 16.5 mmol DMF ·g cat −1 ·h −1 , which is 1.7–16.5 folds higher than the state-of-art nickel-based catalysts. Mechanistic investigations demonstrated that the Fe intervention is conductive to the generation of electron-enriched metal sites and powerful acidic sites in Ni 1.52 Fe 0.36 BO x catalyst, which favored the activation of hydrogen and the cleavage of C–O bond to accelerate the hydrogenolysis process. Moreover, Ni 1.52 Fe 0.36 BO x catalyst exhibited good recyclability as well as universality in the hydrogenolysis of various biomass-derived unsaturated aldehydes. This finding opens a new avenue for highly selective hydrodeoxygenation of renewable biomass feedstock to value-added chemicals with non-noble bimetal hybrids in a green and straightforward manner.
研究领域:
催化化学
·
可再生资源转化
·
绿色化学
✓ 已验证
产品关联
DOI
高影响因子
FUEL
·
2024
·
IF 6.7
Peixin Wang,Ruilong Zhang,Ifunanya Rejoice Akaniro,Mian Laiq Ur Rehman,Reeti Kumar,Zhong-Ting Hu,Jun Zhao
Catalytic oxidation of 5-Hydroxymethylfurfural (HMF) feedstock to value-added chemical 2,5-diformylfuran (DFF) is of great importance in biomass valorization. However, it is still challenging to develop non-noble metal-based catalysts for high selectivity of DFF due to the coexistence of other undesired derivatives. In this study, Mn x Mg 1-x SnO 3 was prepared by Mn incorporating into the crystalline lattice of MgSnO 3 , triggering synergetic catalysis for selective aerobic oxidation of HMF to DFF. Among polymetallic oxides with varying Mn-Mg molar ratios, Mn 0.67 Mg 0.33 SnO 3 (Mn/Mg ratio = 2:1) exhibited the best catalytic activity with DFF yield of 80.6 % and selectivity of 87.5 % at 160 °C for 6 h. It is revealed by various characterization analysis that Mn species in Mn 0.67 Mg 0.33 SnO 3 could not only act as active sites directly but also promote the transformation of oxygen into singlet oxygen for HMF oxidation. Furthermore, the used Mn 0.67 Mg 0.33 SnO 3 catalyst could be successfully reactivated through a straightforward two-step regeneration method involving impregnation followed by calcination, demonstrating remarkable stability.
研究领域:
催化化学
·
生物质转化
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ChemCatChem
·
2025
·
IF 3.9
Xinyu Xiao,WEIWEI ZHAO,Mingyue Li,Guangmeng Chen,Wenjie Yu,Weihua Zhou,Xiaoqing Liu
The electrooxidation of 5-hydroxymethylfurfural (HMF) has emerged as a promising way to generate high-value-added bio-based products. However, improving catalyst selectivity for HMF and inhibiting competitive oxygen evolution reaction (OER) in a limited potential range remain long-term targets. In this work, the self-supported LIG-NiCuP electrode, utilizing porous laser-induced graphene (LIG) skeleton as the substrate and loaded with NiCuP compound, is designed for the efficient and highly selective electrooxidation of HMF to 2,5-furandicarboxylic acid (FDCA). The surface reconstruction of electrode forms a LIG-NiCuP/NiCu(OH)x heterostructure, demonstrating high activity (HMF conversion 99.7%, FDCA yield 92.6%) for HMF oxidation reaction (HMFOR). Studies indicate that the low activity of Cu for OER allows it to function as a co-catalyst, enhancing the selectivity of Ni-based primary catalyst for HMF. In addition, the pine needle-like structure of Cu can optimize the morphology of catalyst deposited on LIG skeleton, increasing the contact area with HMF. On the other hand, in terms of the substrate to support metal catalysts, LIG fabrication combines the characteristics of rapidity, simplicity, scalability, and low cost, therefore, holding high promise in practical applications. Overall, the material system and processing method in this work present a significant step toward developing efficient catalyst electrodes for biomass conversion.
研究领域:
化学工程
·
材料科学
·
催化化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
·
IF 19.503
Tianci Xiao,Xiaohao Liu,Guangyue Xu,Ying Zhang
Crystal structure of catalyst support has great influence on its surface and electronic properties. Thus, tuning the crystal phase may adjust the catalytic activity. Herein, we prepared a series of monoclinic, tetragonal and mixed phase of Co/ZrO 2 catalysts, denoted as Co/m-ZrO 2 , Co/t-ZrO 2 and Co/Mix-ZrO 2 . They showed different hydrogenation and hydrogenolysis activities in conversion of 5-hydroxymethylfurfural (HMF) to 2,5-dimethylfuran (DMF). The characterization and catalytic performance indicated that the interaction between cobalt and t-ZrO 2 resulted in cobalt electron-deficiency and higher concentration of Zr(III) species, which contributed to the higher hydrogenation activity of carbonyl on Co/t-ZrO 2 than Co/m-ZrO 2 . While the hydrogenolysis of C OH group showed higher efficiency on Co/m-ZrO 2 , which was determined by the acid concentration on the surface of catalysts. The combination of both high hydrogenation and hydrogenolysis activities in Co/Mix-ZrO 2 achieved the highest yield of DMF (90.7 %) under mild conditions of 130 °C and 1 MPa H 2 .
研究领域:
催化化学
·
材料科学
✓ 已验证
DOI
高影响因子
TETRAHEDRON
·
2011
·
IF 3.011
Ming-Yu Wu,Kun Li,Ting He,Xing-Wen Feng,Na Wang,Xiao-Yan Wang,Xiao-Qi Yu
A lipase-catalyzed protocol for the synthesis of 5-hydroxyimino-4,5-dihydrofurans via tandem coupling between β-nitrostyrenes and 1,3-dicarbonyl compounds was developed in a ‘one-pot’ strategy. A series of β-nitrostyrenes were employed to expand the scope of this new biocatalytic promiscuity with high stereoselectivity ( Z / E up to 99:1) and moderate to good yields. The reaction activity of 1,3-cyclohexanedione was found to be better than linear 2,4-pentanedione, while ethyl acetoacetate and diethylmalonate were not suitable for this reaction under the same conditions. Single-crystal X-ray diffraction analysis indicated that the reaction was stereoselective and Z -stereomer was found to be the major product. A reaction mechanism was supposed to elucidate the biocatalytic process.
研究领域:
生物化学
·
有机合成
✓ 已验证
产品关联
DOI
高影响因子
CATALYSIS TODAY
·
2024
·
IF 5.2
Chengfeng Yi,Jingwen Li,Zhigang Liu
NiS X stands out in the electrochemical oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) due to the favorable conductivity and diverse chemical composition. However, NiS X usually exhibits few exposed active sites and poor charge transfer kinetics. Moreover, during the electrochemical oxidation of HMF, the conductivity of the catalyst would decrease rapidly with the formation of oxidized Ni species, leading to a rapid decline in catalytic performance. Therefore, a series of NiS X /carbon black (CB) hybrids (NiS X /CB-n) were synthesized via a one-step solvent hydrothermal method in which NiS X displayed a large cubic block structure assembled from small nanosheets. Among the prepared catalysts, NiS X /CB-2, with the optimal amount of introduced CB, exhibited superior electrocatalytic activity for the oxidation of HMF, achieving 100% HMF conversion, 98% FDCA yield, and 100% Faradaic efficiency at 1.45 V (vs. RHE). The outstanding electrocatalytic activity of NiS X /CB-2 was attributed to the suitable CB doping, which not only enhanced the conductivity of catalyst but also separated the small nanosheets, preventing the formation of densely packed NiS X structure and increasing the specific surface area of catalyst, thereby exposing more active sites and improving the availability of material. Furthermore, the formation of C-S bonds facilitated charge interactions between NiS X and CB, promoting the transfer of charges during the electrolysis process and enhancing electrocatalytic kinetics. Open circuit potential tests demonstrated that the introduction of CB also strengthened the adsorption capacity of catalyst for HMF, further benefiting its electrocatalytic activity.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ChemistrySelect
·
2024
·Vol. 9
·期 35
·e202402568
·
IF 1.9
Rui Zhu,Xinglong Li
Graphical A photocatalytic selective oxidation strategy for preparing DFF from HMF is developed, using Ag/Ag 3 PO 4 as the photocatalyst and O 2 as the oxidizing agent. In contrast to previous photocatalytic oxidation strategies for HMF transformation, this catalytic system could efficiently generate 1 O 2 without other ROS under visible light irradiation. DFF would be obtained with 88 % selectivity with the optimal reaction conditions. The synthesis of 2,5-diformylfuran (DFF) through photocatalytic oxidation of 5-hydroxymethylfurfural (HMF) is an attractive approach. In this manuscript, a photocatalytic selective oxidation strategy for HMF was developed, using Ag/Ag 3 PO 4 as the photocatalyst and O 2 as the oxidizing agent. The prepared catalyst was characterized systematically by SEM, XRD, XPS, UV-Vis, PL spectra, and so on. In contrast to previous photocatalytic oxidation strategies for HMF conversion, this catalytic system could efficiently generate 1 O 2 without other reactive oxygen species (ROS) under visible light irradiation. DFF would be obtained with about 90 % selectivity. Moreover, the exclusive formation of 1 O 2 was linked to the more positive conduction band potential (+0.90 eV) of Ag/Ag 3 PO 4 , confirmed by an array of characterization techniques. Additionally, the stability of the catalyst was assessed through cyclic testing and analyses including XRD, and XPS. Nonetheless, this catalytic system could potentially serve as a robust platform for various selective oxidation reactions in the future, due to its exclusive presence of 1 O 2 without the involvement of other ROS.
研究领域:
化学
·
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）