ENERGY & FUELS
·
2024
·
IF 5.2
Li Zhao,Hao Fu,Yuan-gu Xia,Ji Liu,Bin Hu,Zhan-jun Cheng,Xi Luo,Dan Yan,Ji-hong Li,Qiang Lu
Pyrolysis is a promising thermochemical conversion technology, which can convert biomass and cellulose into value-added products. Herein, a new approach of oxalic acid-assisted staged fast pyrolysis (OASFP) of cellulose was developed, achieving the coproduction of 1,4:3,6-dianhydro-α-d-glucopyranose (DGP), furfural (FF), and formic acid (FA) in separated pyrolysis stages. The lab-scale tests demonstrated that a selectivity of 71.6% and a yield of 31.5 wt % for FA in the aqueous phase, as well as a selectivity of 55.6% and a yield of 1.2 wt % for FF in the organic phase, were achieved in the primary pyrolysis stage under the optimized conditions (primary pyrolysis temperature of 220 °C and cellulose-to-oxalic acid (OA) ratio of 1:3). During the subsequent secondary pyrolysis process at 400 °C, the decomposition of the solid residue achieved a yield of 7.2 wt % and a selectivity of 32.7% for DGP. The interaction between OA and cellulose during the primary pyrolysis stage was essential for DGP generation. The formation mechanism of major products and the role of OA were revealed based on experiments and density functional theory calculations. In total, the OASFP of cellulose offers new possibilities and opportunities for biomass utilization.
✓ 已验证
DOI
高影响因子
FOOD CHEMISTRY
·
2026
·
IF 10.4
Cheng-Feng Zhang,Hong-Wei Li,Yuqing Wu
A ratiometric fluorescence sensor was established for furfural detection. • The ratiometric sensor showed high selectivity and anti-interference. • The unique response is attributed to GSH-triggered addition to Schiff base on N -CDs. • The method was successfully applied to detect furfural in Chinese baijiu . Reliable methods for furfural (FUR) determination are significance for ensuring the food safety and quality control of Chinese baijiu . In this work, nitrogen-doped carbon dots ( N -CDs) were synthesized via a hydrothermal method using p -phenylenediamine ( p -PD) as the precursor. Taking advantage of the sequential reaction between the surface amino groups of N -CDs, FUR, and glutathione (GSH), a novel ratiometric fluorescence sensor was constructed. In the presence of FUR and GSH, the sensor exhibits a new blue emission peak at 433 nm, while the intrinsic red emission of N -CDs at 605 nm remains essentially unchanged, thereby generating a self-calibrated ratiometric signal ( I 433 /I 605 ). In particularly, this ratio increases linearly with FUR concentration increase, showing good linearity over two ranges (1.0−10 μmol/L and 10−140 μmol/L), with a detection limit as low as 80.75 nmol/L. Mechanistic investigations reveal that the sensing process involves Schiff base formation between FUR and the amino groups on N -CDs, followed by thiol nucleophilic addition of GSH to the C=N bond, these two steps together account for the emergence of the blue fluorescence. The method was successfully applied to the analysis of real baijiu samples, with spike recoveries ranging from 96.6% to 109.9%, and showing good prospects for practical application in alcoholic beverage analysis.
✓ 已验证
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Haolin Li,Zhen Ren,Luyao Yu,Xuan Liu,Lei Wang,Yusen Yang
The selective oxidation of furfural to succinic acid represents a promising route for producing biobased polymer precursors. This work develops an efficient and stable H2SO4-modified β-zeolite catalyst for succinic acid production. Systematic screening revealed that treatment with 0.25 M H2SO4 for 60 min yielded the optimal catalyst (β-H2SO4-60), achieving 99% furfural conversion and 75.1% succinic acid selectivity. Comprehensive characterization indicates that controlled acid treatment induced selective surface dealumination, transforming framework aluminum into extra-framework species. This process generates a high density of Lewis acid sites while maintaining a low Brønsted-to-Lewis acid ratio, which is conducive to the formation of succinic acid. Through a three-step purification process comprising rotary evaporation, dichloromethane extraction, and ethanol recrystallization, succinic acid powder with a high purity of 99.5% was successfully obtained. Coupled with a techno-economic analysis that confirms the economic viability of the biobased succinic acid production route, this work provides a holistic strategy from catalyst design to process integration for the sustainable production of biobased succinic acid.
✓ 已验证
DOI
高影响因子
BIOMASS & BIOENERGY
·
2026
·
IF 7
Weijie Shen,Li Dong,Shuoqi Pei,Guoqiang Ding,Shanhui Zhu,Yueqing Wang,Guangping Lei,Yulei Zhu
Tandem isomerization and decarbonylation increased furfural yield from 34.4% to 67.9%. • Framework Sn location was governed by T-vacancy distribution in dealuminated H-beta. • Open Sn sites at pore mouths improved furfural selectivity. The asymmetric C-C bond scission of C6 glucose to C5 furfural via a “C5 + C1” retro-aldol pathway represents a promising and important route for the valorization of bio-based sugar resources. However, this transformation still faces major challenges in achieving high selectivity and efficiency, as stable glucopyranose tends to undergo side reactions leading to oligomeric humins. In this work, to enhance furfural yield, Sn atoms were incorporated into the framework of dealuminated H-beta zeolite to construct synergistic active sites for coupling isomerization and decarbonization reactions. The catalytic performance was found to be highly sensitive to the type, spatial location, and coordination environment of framework Sn species. Based on Low-Energy Ion Scattering (LEIS) and X-ray absorption fine structure (XAFS) results, it is demonstrated that open Sn sites located at the pore mouths of H-beta zeolite are conducive to the conversion of glucose into furfural via coupled isomerization-decarbonization pathways. Accordingly, Sn-Al-beta-C, which possesses the highest proportion of open Sn sites, achieves the highest furfural yield of 67.9% at nearly complete glucose conversion, markedly outperforming H-beta (34.4%) and the corresponding physical mixtures. The ratio of open to closed Sn sites can be regulated by controlling the deposition of Sn (IV) species at the pore mouths of H-beta zeolite. The results of this work demonstrate the feasibility of constructing metal–acid bifunctional sites for the direct conversion of glucose to furfural and provide valuable insights for the rational design of efficient metal-modified zeolite catalysts.
✓ 已验证
DOI
高影响因子
ChemSusChem
·
2026
·Vol. 19
·期 7
·e202502250
·
IF 5.9
Junjie Zhang,Jingai Shao,Liwen Fu,Zhong Lin,Xiong Zhang,Shihong Zhang,Haiping Yang,Hanping Chen
Developing biomass-based solid acid catalysts and converting biomass-derived molecules into high-value chemicals has a dual promoting effect on the high-value utilization of waste biomass. This study introduces a groundbreaking one-pot hydrothermal strategy integrating biomass with MIL-101(Cr) precursor to fabricate hierarchical carbon-based catalysts for the highly efficient and selective dehydration of xylose to furfural, achieving 67.2%–72.0% furfural yield (a 33% enhancement over conventional biomass-derived catalysts) under optimized conditions (180°C, 3 h) in a toluene/water biphasic system. The modified hydrochar exhibits an ultra-high surface area of 2119.3 m 2 /g, abundant dual Lewis/Brønsted acid sites, and dispersed Cr 3+ active centers, enabled by synergistic MOF-templated modification engineering and biomass hydrothermal carbonization. Moreover, the correlation between the physicochemical properties and catalytic performance of modified hydrochar was analyzed. Notably, biomass feedstocks with low ash content and high nitrogen content can yield modified hydrochar with more acidic active sites, which exhibits superior catalytic activity. This study provides new ideas for the high-value utilization of waste biomass.
✓ 已验证
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Yingzhang Shi,Taikang Wu,Zhiwen Wang,Cheng Liu,Jinhong Bi,Ling Wu
Optimizing the electronic structure of the surface active sites and introducing functional sites for a photocatalyst are effective strategies to achieve the photocatalytic selective hydrogenation of biomass. Herein, Pt clusters/bimetallic NiMg-MOF-74 (MNM) ultrathin nanosheets were constructed for the photocatalytic precise hydrogenation of furfural (FUR) to furfuryl alcohol (FAL). A representative sample (Pt/MNM-0.25) shows 99.9% conversion of FUR and 99.9% selectivity of FAL. The electron density of surface coordinatively unsaturated Ni II atoms in MNM is decreased after the doping of Mg. In situ ATR-IR indicated that the optimized surface Ni II sites induced a more effective coordination activation of FUR molecules via the Ni-η 1 -(O)-furfural coordination. Electrochemical measurements and in situ EPR results reveal that Pt clusters are the functional surface sites for transferring the photogenerated electrons and dissociating H 2 . The synergistic effect of surface optimized Ni II sites and Pt clusters is emphasized. This work successfully achieves the high-efficiency precise hydrogenation of FUR to FAL via designing surface functionalized Pt clusters/bimetallic MOF ultrathin nanosheets.
✓ 已验证
产品关联
DOI
高影响因子
RENEWABLE ENERGY
·
2021
·
IF 8.001
Yuan Cheng,Yao Liu,Junhua Zhang,Rulu Huang,Yue Wang,Shuwan Cao,Liang He,Lincai Peng
The synthesis of porous material endowed with high Lewis acid-base sites for catalytic transfer hydrogenation (CTH) of carbonyl compounds to their corresponding alcohols has become a hot topic. Herein, a mesoporous metal-organic hybrid (Zr-FDCA) was prepared through facile self-assembly of biomass-based 2,5-furandicarboxylic acid (FDCA) and zirconium by using acetic acid as the modulator. Its catalytic activity was tested by CTH of furfural (FAL) to furfuryl alcohol (FOL) in isopropanol. The characterization results revealed that Zr-FDCA displayed higher Lewis acid-base sites due to the competition between acetic acid and FDCA , thus exhibiting an outstanding catalytic performance to give a FOL yield up to 100% at 150 °C in 3 h. Based on the experimental results, a kinetic model describing this reaction has been established and shown a good correlation between the measured and predicted data, which can provide an effective tool to monitor the process and tailor the process conditions to obtain the desired product. More gratifyingly, Zr-FDCA displayed good recyclability , which can be easily separated from the reaction mixture and repetitively used at least five runs without an obvious loss of activity.
✓ 已验证
产品关联
DOI
高影响因子
ChemCatChem
·
2021
·Vol. 13
·期 19
·4164-4181
·
IF 5.686
Qiuli Fu,Shibo Yang,Ping Ning,Rongrong Miao,Liang He,Qingqing Guan
Graphical Selective hydrogenation : In rubber seed shell porous biochar supported Cu−Ni bimetals, the formed Cu 1 Ni 3 alloy stabilized the excessive Cu species which were in the lattice on the inner/outer surfaces of the rss AC support. The catalytic activity is retained, ensuring that the catalyst would neither be oxidized nor aggregated severely. The prepared high-efficiency Cu 1 Ni 1 / rss AC catalyst catalyzed the hydrogenation reaction of FAL to produce FOL, THFA and 2-MF. Using cheap Cu-based catalysts for highly selective hydrogenation of furfural (FAL) is of great importance of upgrading this biomass-derived platform molecule but is still challenging for large-scale application due to the low conversion efficiency and the easy aggregation of Cu active sites. To address these issues, a nitrogen-autodoped porous biochar derived from rubber seed shell ( rss AC) was fabricated for anchoring Cu sites on a nanoscale. Moreover, by the co-crystallization strategy of Cu and the second metal (M, M=Ni, Zn, Co, Ce), stable Cu−M nanoalloys were constructed on the surface of the rss AC support. The FAL hydrogenation experiments showed that the type, proportion and loading amount of the second metal had great effect on the catalytic efficiency. Compared with the other metals, Ni-doped Cu/ rss AC catalyst exhibited the best hydrogenation performance due to their extraordinary adsorption and activation capacity for hydrogen. Further, the highest catalytic efficiency was observed using 20 % Cu 1 Ni 1 /rss AC catalyst. The characterization results showed that the key to its success was highly-dispersive anchoring of the CuNi active sites onto the inner/outer surface of the nanopores of rss AC support by the strong interaction between the surface N-containing functional groups and metals. Of note, the formed CuNi alloys with the Cu/Ni atomic ratio of 1 : 3 played an important role in the stabilization of the adjacent nano-dot matrix Cu 0 species. Kinetic test indicated that the formation step of furfuryl alcohol (FOL) from FAL was still the key step and the hydrogenation products can be converted between FOL and tetrahydrofurfuryl alcohol (THFA). The life evaluation test showed that the catalyst still kept high activity and selectivity after being reused five times. The advanced synthesis method co-using N-doped support anchoring and the second metal alloying strategy sheds light on preparing effective catalysts for hydrogenation of biomass-based compounds.
✓ 已验证
产品关联
DOI
高影响因子
Molecular Catalysis
·
2021
·
IF 5.062
Weile Li,Mengzhu Li,Huai Liu,Wenlong Jia,Xin Yu,Shuai Wang,Xianhai Zeng,Yong Sun,Junnan Wei,Xing Tang,Lu Lin
The economic and highly efficient synthesis of γ-valerolactone (GVL) is being increasingly focused due to its wide applications in solvent, chemical, and fuel. Herein, a range of SAPO-34 supported zirconium phosphate (ZPS-X) catalysts were prepared for a facile one-pot conversion of furfural (FF) to GVL through a series of cascaded reactions involving transfer hydrogenation, etherification, alcoholysis and esterification. The introduction of zirconium phosphate renders the formation of relatively strong Lewis acid sites, and the amount of Lewis (L) and Brønsted (B) acid sites of ZPS-X catalysts could be modified by adjusting the molar ratio of Zr to P (Zr/P ratio). Specifically, ZPS-1.0 having an appropriate Zr/P ratio with relatively strong L acid sites exhibited superior activity and selectivity for the production of GVL from FF.
✓ 已验证
产品关联
DOI
高影响因子
RENEWABLE ENERGY
·
2021
·
IF 8.001
Yuewen Shao,Junzhe Wang,Kai Sun,Guoming Gao,Chao Li,Lijun Zhang,Shu Zhang,Leilei Xu,Guangzhi Hu,Xun Hu
Pentanediols (1,2-pentanediol and 1,5-pentanediol) are important feedstock for synthesis of fine chemicals, production of which from the biomass-derived furfural or furfuryl alcohol (FA) has been considered as a sustainable route and attracted much interest. In this study, the catalysts with Ni–Fe as the metal sites and Mg–Al layered double hydroxides (LDH) as precursor of support were synthesized. The results showed that the presence of Fe in catalyst affected both the development of the pores of the catalyst and the catalytic behaviors of nickel species. A low Fe content facilitated formation of mesoporous structure, but the higher content destroyed the LDH structure, resulting in a decreased surface area. Fe could also react with metallic Ni to form NiFe alloy. This decreased the catalytic activity for the further hydrogenation of the furan ring in FA, and FA would thus have the chance to produce pentanediols via hydrogenolysis . The In-situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy characterization of hydrogenation of FA indicated that the alloying between Fe and Ni resulted in a weak adsorption of C C group in furan ring and moderate adsorption of C–O–C group, which suppressed the complete hydrogenation of FA while facilitated the ring-opening of FA to form the pentanediols.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS A-GENERAL
·
2020
·
IF 5.006
Xu Yang,Wu Liu,Fenghua Tan,Zhaoxia Zhang,Xindi Chen,Tengda Liang,Chuande Wu
Catalyst deactivation caused by the metal sintering/leaching is still a great challenge confronted by the scientists. Herein, we report a robust strategy to in situ synthesize mesoporous silica supported highly dispersed copper catalyst by homogeneously hybridizing the silica and metal-organic framework (MOF) copper benzene-1,3,5-tricarboxylate (Cu 3 (BTC) 2 ). We find the introducing silica is the key to the formation of homogeneous hybridization by regulating the growth of Cu-BTC crystallite, yielding various metal dispersion and reducibility during calcination; while the added BTC ligands acts as porous initiator, promoting the accessibility of copper centers for reactants. The optimized CuO#SiO 2 – s1 with molar ratio Cu/Si of 0.23, exhibits excellent catalytic performance towards the furfural hydrogenation, showing a high activity as 9.2 mol FF mol Cu −1 h −1 , nearly 100 % furfural alcohol selectivity and minimized activity decline (<5%) after 5 repeated run. This work could open up a new avenue for the synthesis of mesoporous silica supported highly dispersed metal catalyst for hydrogenation.
✓ 已验证
产品关联
DOI
高影响因子
Molecular Catalysis
·
2020
·
IF 3.687
Yang Zhong,Bo Zhou,Lijun Wang
Fe/FeO x embedded in LDH was prepared by reducing the pre-synthesized [Fe(C 2 O 4 ) 3 ] 3− anions intercalated LDH and used as a multi-functional catalyst for synthesis of C7-C9 compound via transfer hydrogenation between furfural (C5) and short-chain alcohols (C2-C4) and a subsequent aldol reaction of furfural with intermediate short-chain aldehydes in the absence of a homogeneous base with furfuryl alcohol as a byproduct. Screening reaction conditions, evaluation and improvement of the cyclic catalytic performance, and determination of catalytically active components were performed, and the results demonstrated that both high conversion and high selectivity to the C C bond forming product can be obtained under a non-oxidizing atmosphere of Ar or H 2 /Ar mixed gas, a reaction temperature of 140 °C and a reaction time of 4 h; the catalyst was easily deactivated during the cycle experiments, however, its catalytic stability can be effectively improved by depositing Ni with weak reducibility on the surface of Fe nanoparticles at the cost of reducing partial catalytic activity. Fe/FeO x together with LDH as a whole proved to be effective in catalyzing the transfer hydrogenation reaction and the support LDH imparted basic catalytic function to the composite realizing the aldol reaction in the absence of a homogeneous base.
✓ 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）