AICHE JOURNAL
·
2024
·
IF 3.5
Yanru Zhu,Zhen Zhang,Yunfei Zou,Jian Zhang,Zhe An,Xin Shu,Hongyan Song,Jing He
Catalytic conversion of biomass-derived 5-(hydroxymethyl)furfural (5-HMF) into carbon-increased hydrocarbons as drop-in energy-rich biofuels has received a great deal of concern for the development of sustainable chemical industry. Here, we demonstrate a one-pot conversion of 5-HMF into C 9 -alkanes on one single catalyst, acidic–basic layered double oxides (Mg(Al)(Zr)O) supported CuCo alloy. The well-defined multifunctional catalytic sites with harmonious combination carry out cascade catalysis, affording C 9 -alkanes (including 30% of more value-added branched-cycloalkanes) in 83% yield. The basic–acidic sites on Mg(Al)(Zr)O show high activity for aldol condensation of 5-HMF and acetone, producing 4-[5-(hydroxymethyl)-2-furanyl]-3-buten-2-one (HAc) in a yield of >99%. The engineered Co–Cu–Co linkages on supported CuCo perform efficient hydrodeoxygenation, affording C 9 -alkanes in a selectivity of 96% from HAc. C 9 -cycloalkanes are generated from the cyclization of the corresponding monohydric alcohol intermediates by the synergy of acidic and CuCo sites in the hydrodeoxygenation reaction.
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高影响因子
CATALYSIS TODAY
·
2024
·
IF 5.2
Shuanglin Jia,Wenhao Yang,Hao Liu,Xiao Chen,Jingjie Luo,Changhai Liang
Furfural is an indispensable platform compound derived from biomass resource and can be hydrogenated to produce a series of high value-added chemicals. In order to overcome the disadvantages of low selectivity and poor stability during furfural hydrogenation, design of promising Cu catalysts with well-disentangled catalytic theory becomes a hot topic. In this work, a series of Cu-M/Al 2 O 3 (M=Fe, Co, Ni, Ce) catalysts were prepared by sol-gel method to make a uniform ternary metal composition. Distinctive product distribution for the catalytic transfer hydrogenation of furfural was obtained depending on the specific Cu-M/Al 2 O 3 system. Among them, the Cu-Fe/Al 2 O 3 displayed superior selectivity of 2-methylfuran compared to any other catalysts. The introduced metal additive acted as the electron donor to regulate the surface dispersion of Cu species. Higher percentage of surface Cu 0 +Cu + species were formed on Cu-Ce/Al 2 O 3 and Cu-Fe/Al 2 O 3 , accounting for the much lower activation energy and better dissociation ability for isoproponal. If Cu-Ni/Al 2 O 3 or Cu-Ce/Al 2 O 3 was used as the catalyst, hydrogenation happened on the furan ring. Whilst Cu-Co/Al 2 O 3 was more preferentially used to produce 2-pentanol and 2-pentanone, with large amount of copper species in oxidative states. The yield of 2-MF reached 84 % at 220 ºC in N 2 at ordinary pressure by Cu-Fe/Al 2 O 3 with the specific rate of 106.8 mmol FAL ·g Cu −1 ·h −1 .
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高影响因子
FUEL PROCESSING TECHNOLOGY
·
2025
·
IF 7.7
Peng Gan,Kai Zhang,Jingli Yang,Baobin Wang,Guihua Yang,Chengcheng Qiao,Lei Zhang,Jiachuan Chen
The application of biorefinery technologies to convert xylo-oligosaccharide (XOS) from pulping process into biofuels or high-value chemicals holds significant potential for extending the value chain of the pulp and paper industry, while simultaneously promoting sustainability. In this study, a series of dual-acid functionalized covalent organic frameworks (COFs) were synthesized to catalyze the one-step liquid-phase conversion of XOS into furfural. The results indicated that TAPT-DHPA exhibited exceptional catalytic activity, achieving a furfural yield of 78.6 % at 180 °C for 3 h with 0.16 wt% catalyst. Furthermore, TAPT-DHPA demonstrated excellent stability, maintaining a furfural yield above 77 % after six reuse cycles. Bader charge analysis via VASP software revealed the presence of both Brønsted and Lewis acid active sites in TAPT-DHPA, arising from the ionization of hydrogen in phenolic hydroxyl groups and the strong electron-withdrawing nature of the triazine ring, respectively. These characteristics are key factors in TAPT-DHPA's superior catalytic performance. Density functional theory calculations confirmed that the most favorable pathway for furfural production involves a cyclic anhydride intermediate, with the rate-limiting step being the initial dehydration of D-xylose triggered by proton attack on the 2-OH group. The addition of TAPT-DHPA reduced the activation energy of this rate-limiting step by 54.43 %.
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高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2024
·
IF 4.1
Lingtao Liu,Lijian Wang,Jingxin Tan,Cong Yu,Junjie Bian,Xinbo Wang
Photocatalytic selective oxidation of furfural is a green, gentle way of preparing furoic acid. Photocatalytic oxidation effectively avoids the problems of difficult separation and high energy consumption in subsequent work-ups caused by the use of homogeneous oxidants. The photocatalytic process suffers from uncontrollable reactive oxygen species, resulting in low selectivity of the target product and excessive oxidation. Therefore, the K x -C 3 N 4 /UiO-66-NH 2 -Y catalyst was prepared by the mass proportion of UiO-66-NH 2 and K x -C 3 N 4 to form a heterogeneous structure, and the band gap width was adjusted to effectively avoid the formation of non-target strong reactive oxygen species ( OH). The results showed that: the aqueous 0.1 mM Na 2 CO 3 solution had an inhibitory effect on the non– target reactive oxygen species at room temperature; when the reaction time was 5 h and K 0.1 -C 3 N 4 /UiO-66-NH 2 -20, the furoic acid had the highest yield of 70.7, the target reactive oxygen species was confirmed by free radical capture experiments as O 2 – , and it was postulated that the reaction mechanism for the preparation of furoic acid by selective oxidation of furfural.
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JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
·
2025
·
IF 3.3
Ma Shutian,Shi Zhuang,Yang Yi,Zhang Jinglin,Zou Hongyu,Diao Enjie,Zhang Liming
Solo-bulb black garlics (SBBG) are novel foods rich in nutritional and functional ingredients. However, certain process contaminants formed during thermal processing of SBBG raise safety concerns. This study investigated the formations of 5-hydroxymethyl-2-furfural (5-HMF) and acrylamide, as well as the browning degree of SBBG during a 12-day aging period. Both 5-HMF and acrylamide contents exhibited exponential increases, with their formations well simulated by pseudo-first-order kinetic models. 5-HMF formation showed a significant positive correlation with fructose content ( p < 0.05), while acrylamide formation was strongly associated with asparagine content ( p < 0.01). Browning degree correlated significantly with acrylamide accumulation and asparagine content ( p < 0.01), but not with 5-HMF ( p > 0.05). These results indicate that fructose and asparagine accumulations play critical roles on 5-HMF and acrylamide formations in SBBG, respectively, and acrylamide accumulation promotes SBBG browning. Notably, acrylamide level in SBBG exceeded those reported in some commonly consumed foods, which is a concern considering the daily consumption of this food.
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PubMed
高影响因子
Polymers
·
2025
·Vol. 17
·期 8
·1102
·
IF 4.9
Kai Zhang,Huanmei Xia,Guangyao Cheng,Peng Gan,Yuan Ju,Baozhen Guo,Jingli Yang,Chengcheng Qiao,Jixiang Lin,Jiachuan Chen
With the rapid development of biorefinery technology, the efficient conversion of lignocellulose into high-value platform chemicals is of great significance for enhancing the value of renewable carbon resources. In this study, a hydroxyl-functionalized covalent organic framework (COF), TAPB-DHPA, was synthesized via an in situ method and innovatively applied to the catalytic conversion of xylo-oligosaccharides (XOS) into furfural. The results demonstrated that TAPB-DHPA possesses a large specific surface area, a well-developed porous structure, and excellent thermal stability, with abundant Brønsted acid (B acid) sites, exhibiting outstanding catalytic activity. Under optimal conditions, including a catalyst loading of 0.16 wt%, a reaction temperature of 180 °C, and a reaction time of 3 h, a furfural yield of up to 65.4% was achieved. The high selectivity was primarily attributed to the p-π conjugation effect between the benzene ring and the phenolic hydroxyl group, which enhanced the ionization ability of hydroxyl hydrogen, thereby effectively promoting the hydrolysis of XOS and subsequent dehydration. Furthermore, TAPB-DHPA exhibited excellent recyclability and stability, maintaining a furfural yield of over 59.9% after six cycles. This study provides new insights into the application of functionalized COF in biomass catalytic conversion and contributes to the green transformation of the pulp and paper industry into a biorefinery-based model.
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高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Zhengxiong Zhang,Lefu Lu,Haocheng Xu,Xuebin Lu,Xiaoyun Li
The preparation of furfural from biomass is an effective way of utilization the renewable carbon sources. In this article, magnetic carbon-based solid acid (MCSA) catalyst was synthesized from tobacco stalk by pyrolysis method, and tobacco stalk biomass is converted to furfural that was realized in water-γ-valerolactone solvent system. The maximum furfural yield from tobacco stalk was 46.68 % at 190 ℃ for 120 min. MCSA contains 5.04 μmol/mg of Brønsted acid sites (carboxyl group) and 21.16 μmol/mg of Lewis acid sites, which contribute to its impressive catalytic efficiency. The kinetics of the reaction process for furfural production was studied, providing valuable insights for predicting the catalytic reaction system. This study offers an effective strategy for converting tobacco stalk biomass to furfural, which is an important approach to reduce carbon emissions and promoting the carbon cycle.
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CATALYSIS LETTERS
·
2019
·Vol. 150
·期 1
·178-184
·
IF 2.372
Li Zhi-Xin,Wei Xian-Yong,Yang Zheng,Zhang Min,Meng Xing-Long,Niu Shuo,Zhang Di,Zong Zhi-Min
Abstract Highly selective hydrogenation of furfural to furan-2-ylmethanol (FM) in isopropanol was achieved over a novel magnetic Cu–Co/C derived from zeolitic imidazolate frameworks prepared by galvanic replacement reaction. Furfural conversion and FM selectivity (FMS) are 100% and 97.2%, respectively, at 200 °C. FMS was held around 95% after 5-times recycle of the Cu–Co/C. In addition, cinnamaldehyde was completely converted with 96.8% of phenylpropanol selectivity over the Cu–Co/C at 150 °C. Graphic Abstract
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高影响因子
GREEN CHEMISTRY
·
2021
·Vol. 23
·期 4
·1861-1870
·
IF 10.182
Yiwei Tang,Mo Qiu,Jirui Yang,Feng Shen,Xiaoqi Wang,Xinhua Qi
Ni-Doped ordered mesoporous carbon (Ni@OMC) was prepared by a one-pot solvent evaporation-induced self-assembly (EISA) process with sustainable biomass-derived gallic acid as the carbon precursor, F127 as the soft template and Ni2+ as the cross-linker and catalytically active ingredient. Ni particles with ca. 7.8 nm diameter were uniformly dispersed in the carbon skeleton of the synthesized OMC due to the confinement effects of Ni particles in the carbon skeleton of OMC by coordination between gallic acid molecules and metal Ni2+ ions in the EISA process. The as-synthesized Ni@OMC sample showed excellent catalytic performance for the hydrogenation of biomass-derived furfural into furfuryl alcohol (FFA), and a FFA yield as high as 98% could be achieved at 180 °C in 4 h reaction time in 1-propanol solvent in the presence of 3 MPa H2 pressure. The prepared Ni@OMC exhibited good stability and recyclability. This work provides a green and simple one-pot strategy for the synthesis of metal-doped OMCs without using harmful phenolic and formaldehyde compounds, which should have many applications in fields such as catalysis, drug delivery and energy storage.
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高影响因子
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
·
2022
·Vol. 106
·期 2
·349-359
·
IF 2.606
Song Fan,Yao Xiandong,Wan Cong,Wang Lijun,Xi Shuang
Titanosilicate mesoporous materials (TiSi-MMs) with adjustable textural properties were synthesized by the sol-gel method. Tetraethyl orthosilicate (TEOS) was used as Si source, while tetraethyl orthotitanate (TEOT) or potassium titanium oxide oxalate dihydrate (PTOOD) was used as Ti source. With an increase of Ti content, the specific surface area and pore volume of TiSi-MMs decrease while the pore size increases. The specific surface area, pore volume and average pore diameter of TEOT-derived TiSi-MMs are larger than those of PTOOD-derived TiSi-MMs. In the acetalization reaction of biomass-derived furfural with n -propanol, the conversions of furfural over TEOT-derived TiSi-MMs are higher than that over silicate mesoporous material (Si-MM), demonstrating that the introduction of Ti significantly enhances the catalytic performance. Furthermore, the catalytic performance of TEOT-derived TiSi-MMs is better than that of PTOOD-derived TiSi-MMs. The sample with the largest Ti content and the highest number of strongly acidic sites shows the best catalytic performance. The numbers of strong acidic sites are positively correlated with the Ti contents of TiSi-MMs. Ti content and specific surface area are the two main factors affecting the catalytic performance because they determine the density and intensity of accessible Lewis acidic catalytic sites (coordinatively unsaturated Ti 4+ ) in the catalyst channels, thus determining the catalytic performance in the acetalization reaction. These TiSi-MMs show good catalytic performance and can be used to efficiently catalyze the acetalization reaction of biomass derived furfural and n -propanol.
Graphical abstract
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Green Energy & Environment
·
2026
·
IF 16.7
Zhen Zhang,Kang Zhou,Xinru Zhao,Armin Rezayan,Dan Wu,Qianli Ma,Zongwu Zhang,Jianshe Wang,Xinqing Chen,Chunbao Xu,Yongsheng Zhang
Water can dissociate on the CoP shell with the formation of H - -Co δ+ -P-O-H + intimate metal-acid sites. • Intimate metal-acid bifunctional sites effectively catalyze the hydrodeoxygenation of furfural to 2-methylfuan. • Brønsted acid sites promote hydrolysis and ring-opening hydrogenolysis of 2-methylfuran to yield 1,4-pentanediol. • Co@CoP catalyst exhibits excellent stability and high activity for the hydrodeoxygenation of various biomass-derived feedstocks. Transition metal phosphides represent promising metal-acid bifunctional catalysts for hydrogenation reactions. However, the origin of the acidity of metal phosphides and their synergistic effects with metallic sites remain poorly understood. Herein, a highly efficient core-shell Co@CoP catalyst prepared via controlled phosphidation of cobalt carbonate was developed for the one-pot transformation of furfural to 1,4-pentanediol. The metallic Co core accelerates active hydrogen transfer, while the CoP shell enables water dissociation to form intimate H - –Co δ+ –P–O–H + metal-acid sites. While the metal-acid bifunctional sites synergistically catalyze the efficient hydrodeoxygenation of furfural to 2-methylfuran intermediate, the Brønsted acid sites on CoP further selectively activate the C–O–C bond of 2-methylfuran, facilitating hydrolysis and ring-opening hydrogenolysis. A 1,4-pentanediol yield of 92.2% is achieved under mild conditions, with excellent cycling stability and applicability for various biomass-derived feedstocks. The disclosed water-engineered Brønsted acidity over metal phosphides provides a fundamental basis for the rational design of bifunctional catalysts for biomass valorization. Co@CoP catalyst enables water dissociation to form intimate H - –Co δ+ –P–O–H + metal-acid sites. While the metal-acid bifunctional sites synergistically catalyze the efficient hydrodeoxygenation of furfural to 2-methylfuran intermediate, the Brønsted acid sites on CoP further selectively activate the 2-methylfuran, facilitating hydrolysis and ring-opening hydrogenolysis. Download: Download high-res image (277KB) Download: Download full-size image
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Current Research in Food Science
·
2026
·
IF 7.7
Xingyi Jiang,Yanbo Luo,Xiangyu Li,Hongfei Zhang,Fengpeng Zhu,Yuwei Liu,Yongqiang Pang,Di Chen
Furfural compounds are important markers of thermal processing in foods and herbal products. However, their analysis in complex samples presents substantial challenges due to matrix interferences and limited detectability. This study introduces a multi-functional magnetic adsorbent synthesized via one-pot grinding, integrating pH adjustment, derivatization, and extraction into a single step. The adsorbent releases citric acid and 2,4-dinitrophenylhydrazine upon dispersion, leading to a pH decrease (∼2.5) and a light-yellow color change, which confirms the initiation of pH adjustment and derivatization. Meanwhile, magnetite nanoparticles (Fe 3 O 4 ) and hydroxylated multi-walled carbon nanotubes self-assemble to extract analytes. Combined with liquid chromatography–ultraviolet analysis, the method achieved satisfactory linearity (0.05–5 μg/mL, R 2 > 0.992), low limits of detection (8.0–13.7 ng/mL), and high recoveries (87.7–99.4%) with relative standard deviations ≤12.1%. It was successfully applied to diverse samples, including teas, juices, coffees, and herbal liquids. Optimization confirmed a 50% ethanol content, a 3 mL sample volume, and 30 min incubation at 30 °C. This strategy integrates derivatization, pH adjustment, and extraction into a self-activated platform suitable for automated operation. It simplifies workflows, improves reproducibility, and shows strong potential for high-throughput food safety and quality monitoring.
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高影响因子
危险品化学品经营许可证（带存储）