CATALYSIS TODAY
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2018
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IF 4.667
Xiaoyan Liu,Guojun Lan,Panpan Su,Lihua Qian,Tomas Ramirez Reina,Liang Wang,Ying Li,Jian Liu
The hydrogenation of levulinic acid to γ-valerolactone with water as solvent is a crucial reaction for producing fine chemicals. However, the development of highly stable catalysts is still a major challenge. Here, we prepared a Ru nanoparticles incorporated in mesoporous-carbon (Ru-MC) catalyst to achieve high stability in acidic aqueous medium. The Ru-MC showed excellent catalytic performance (12024 h −1 turnover frequency) in the hydrogenation of LA-to-GVL. Compared with Ru supported on mesoporous carbon catalyst (Ru/MC) prepared by conventional wet impregnation method, the Ru-MC showed excellent reusability (more than 6 times) and thermal stability (up to 600 °C). Based on H 2 -TPR-MS characterization, it was proposed that the incorporated structure significantly increased the interaction between Ru nanoparticles and carbon support, which effectively prevent the leaching and sintering of Ru nanoparticles and contributed to increased high reusability and thermal stability of the Ru-MC.
研究领域:
催化化学
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绿色化学
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生物质转化
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纳米材料
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能源化学
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有机合成
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CHEMICAL ENGINEERING SCIENCE
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2026
·
IF 5.1
Yufei Li,Kai Cui,Junwen Chen,Qingsong Xue,Peng Wu,Xiaohong Li
Levulinic acid (LA), as a pivotal biomass platform compound, has attracted significant interest in the field of biorefining, particularly owing to its importance in the synthesis of the high value-added 1,4-pentanediol (1,4-PeD) via a two-step conversion, the hydrogenation of LA and dehydrative lactonization to the intermediate γ-valerolactone (GVL), and the subsequent ring-opening hydrogenolysis of GVL to 1,4-PeD. However, the ring-opening hydrogenolysis of GVL is kinetically restricted by a high reaction energy barrier. Therefore, the development of outstanding non-noble metal catalysts remains a significant challenge for the efficient conversion of GVL to 1,4-PeD. Herein, ternary CuMgAl catalysts were prepared via a coprecipitation method and applied to the one-pot cascade hydrogenation of LA to 1,4-PeD in water. Notably, a Cu 1 Mg 0.5 Al 1 catalyst achieved an impressive 1,4-PeD yield of 94.2% under mild conditions. The structure-performance relationship investigation on the Cu 1 Mg 0.5 Al 1 catalyst revealed a remarkable synergistic effect among Cu 0 sites, Cu + sites, oxygen vacancies and a well-balanced acid-base microenvironment. In particular, the medium-to-strong acidity derived from Cu + species and oxygen vacancies promotes GVL adsorption and subsequent ring-opening hydrogenolysis, while the basic sites effectively buffered the acidity to suppress the dehydrative side reaction of 1,4-PeD. Concurrently, adjacent highly dispersed Cu 0 sites supplied dissociated hydrogen atoms, a synergy that was crucial for achieving high 1,4-PeD yields. This work presents a feasible and sustainable route for producing 1,4-PeD from bio-based LA and offers valuable insights into the mechanism of GVL ring-opening hydrogenolysis.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Jiaqi Tan,Bole Ma,Yanlin Qin,Xueqing Qiu,Liheng Chen
Bio-derived lignin nanospheres act as active interfacial regulators in W 18 O 49 . • Spectroscopy supports electronic and oxygen-vacancy-related defect modulation. • Physical-mixing controls support the importance of in situ interface formation. • W 18 O 49 /LNS shows 76.1 ± 0.8% modulation, 7 ± 1 s bleaching, and improved retention. Designing robust organic-inorganic interfaces is essential for resolving the kinetics-stability trade-off in electrochromic (EC) smart-window materials. Here, bio-derived lignin nanospheres (LNS) are used as active interfacial regulators for defect-rich W 18 O 49 nanowires. Coordination-associated interactions between LNS and W 18 O 49 are accompanied by changes in the local electronic environment and oxygen-vacancy-related defect states. The optimized W 18 O 49 /LNS film delivers an optical modulation of 76.1 ± 0.8% at 654 nm, a coloration efficiency of 31.7 ± 1.1 cm 2 C −1 , and a bleaching time of 7 ± 1 s, together with improved cycling retention. Semi-quantitative W L 3 -edge X-ray absorption analysis indicates a decrease in the estimated average W oxidation state from 3.29 to 2.89. Operando FT-IR spectroscopy and DFT calculations reveal bias-induced changes in the interfacial redox and solvation environment, while ESR and electrochemical kinetic analyses support defect modulation and an increased surface-controlled contribution. These findings establish bio-derived interfacial regulation as a promising strategy for defect-rich functional oxide nanocomposites. Download: Download high-res image (165KB) Download: Download full-size image
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Nano-Micro Letters
·
2026
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IF 38.5
Lu Liu,Xinying Cai,Bita Farhadi,Xinrui Dong,Kai Wang,Yufei Shao,Shulin Wang,Jiaxue You,Wanyi Li,Hao-Chung Kuo,Hanying Wang,Dong Yang,Alex K-Y Jen,Shengzhong Frank Liu
Realizing high-performance perovskite/silicon tandem solar cells requires precise control of wide-bandgap perovskite crystallization. Solvent engineering is the most direct lever for this task; yet, its intricate, multi-variable mechanisms defy intuition-driven design. Herein, we overcome this bottleneck by pioneering a retrieval-augmented large language model to screen > 8000 solvents, identifying γ -valerolactone (GVL) as a non-toxic, high-performance cosolvent. It is found that the GVL strongly coordinates FA + , thus precisely modulating crystallization kinetics, retarding nucleation, and promoting oriented, micrometer-scale grain growth. The resulting films exhibit not only superior crystallinity, reduced non-radiative recombination, but also improved scalability to large area and the tolerance to increased film thickness. Consequently, both the single-junction and tandem devices achieve efficiencies of 23.3% and 32.5%, respectively, along with excellent stability under moisture and illumination. This study establishes the first artificial intelligence (AI)-guided cosolvent strategy for 1-μm-thick perovskite layers in perovskite/silicon tandem architectures, underscoring the transformative role of generative AI in advancing high-performance photovoltaics.
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MICROPOROUS AND MESOPOROUS MATERIALS
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2026
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IF 4.5
Yongtai Li,Yuanting Du,Yushan Jia,Ruixi Yang,Weijun Shan,Zhenning Lou,Haibiao Yu,Ying Xiong
Hollow coral-like MCM-41-C was successfully prepared by adjust ethanol dosage. • Hollow coral-like 7wt%Al-MCM-41-C with rich weak acid site was prepared by impregnation. • Butene yield was 92.26% for 7wt%Al-MCM-41-C catalyst (300 °C, 90 min). • Due to hollow coral-like structure, 7wt%Al-MCM-41-C exhibits high catalytic stability. In this paper, the hollow coral-like ordered mesoporous MCM-41-C zeolites were synthesized by hydrothermal method, and their synthesis conditions were thoroughly investigated. Then, x wt%Al-MCM-41-C catalysts feature with hollow coral-like morphology were prepared by impregnation method, and used for the catalytic conversion of γ-valerolactone (GVL) to butene. The results showed that the introduction of Al species not only did not destroy the original special microscopic morphological structure of the MCM-41-C, but also co-existed on the surface and skeleton of the catalyst, resulting in a large number of weak acid sites. The optimal 7wt%Al-MCM-41-C catalyst has a specific surface area of 708.56 m 2 g −1 . The content of weak acid was 0.7262 mmol g −1 . At 300 °C, the GVL conversion and butene yield over the catalyst can reach 99.10% and 92.26%, respectively, within just 90 min of reaction. Meanwhile, the 7 wt%Al-MCM-41-C catalysts also demonstrated excellent catalytic cycle stability, and the butene yield remained above 90% after the 4th cycle. Download: Download high-res image (330KB) Download: Download full-size image
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ENERGY & FUELS
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2026
·Vol. 40
·期 33
·18274-18283
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IF 6
Wu Kai,Chu Chenyang,Wang Haiyong,Cao Qi,Li Mingfan,Zheng Yijie,Zhang Huiyan
Sustainable aviation fuels (SAFs) are mainly composed
of cycloalkanes,
paraffins, and aromatics, representing an inevitable alternative to
conventional fossil fuels. Alcohols and phenolic compounds act as
critical precursors to produce branched alkanes and cycloalkanes,
the major constituents of sustainable aviation fuel. Biomass is primarily
composed of C 6 sugar, and aromatic structures, which can
be employed for the production of phenolics and alcohols. However,
the direct thermal conversion of biomass results in poor selectivity
toward phenolic and alcoholic products. Based on the structural characteristics
of three typical biomass feedstocks, γ-valerolactone (GVL) pretreatment
of biomass coupled with thermal conversion to produce phenolics and
alcohols was proposed. The results showed that GVL pretreatment could
effectively decompose corncob, poplar, and pine into cellulose-rich
fractions (C 6 -based structures) and lignin-rich fractions
(aromatic structures). The highest ethanol yield of 24.4 wt % was
obtained by the catalytic hydrogenolysis of the corncob-based cellulose-rich
fraction over the Ni@C catalyst. The highest relative content (54.1%)
of phenols from fast pyrolysis of lignin-rich fractions extracted
from poplar was achieved. This work demonstrates an advanced process
to achieve a directional conversion of biomass to precursor production
of SAFs.
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ENERGY
·
2026
·
IF 10.1
Jun Zhang,Ying Qiu,Chengyu Li,Rui Shan,Haoran Yuan,Yong Chen
Although the resource utilization of antibiotic residues attracts great interest, the potential application in transfer hydrogenation of platform molecules has barely been reported. Here, we firstly reported the fabrication of antibiotic residues derived carbonaceous materials (AR-T) for catalytic transfer hydrogenation of bio-based furfural into furfuryl alcohol. The in-situ generated acid-base sites in porous AR-T significantly contributed to the Meerwein-Ponndorf-Verley reduction of furfural, which finally gave high furfuryl alcohol yield of 91.0 mol% and low activation energy of 41.4 kJ/mol using isopropanol as both the hydrogen source and solvent. The isopropanol with low reduction potential presented excellent hydrogen donating capacity for furfural hydrogenation. A plausible reaction mechanism for furfural-to-furfuryl alcohol transformation via the cooperative effect of acid-base sites in isopropanol over as-prepared AR-T was also proposed. The techno-economic assessment clearly substantiated the feasibility and economy of AR-T for transfer hydrogenation of furfural, where the total revenue for producing 1 kg furfuryl alcohol achieved $19.8 kg −1 and outperformed the state-of-the-art transition metal catalysts mediated furfural hydrogenation. The present study not only provides an approach for the green and highly efficient utilization of antibiotic residues but also opens novel cost-effective avenues for realizing the catalytic upgrading of bio-based platform oxygenates into value-added chemicals.
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INDUSTRIAL CROPS AND PRODUCTS
·
2026
·
IF 6.4
Juping Yuan,Benkun Qi,Jianquan Luo,Yinhua Wan,Shuyi Li,Zhenzhou Zhu
Although the fabrication of regenerated cellulose (RC) films from highly purified cellulose has been extensively studied, few efforts have explored their direct production from chemically pretreated biomass with varying lignin and xylan contents. This study examines the preparation of RC films from corn stover (CS) using N-methylmorpholine-N-oxide (NMMO)/water as the solvent, focusing on the effects of chemical pretreatments and crosslinking on film properties. RC films were prepared from CS subjected to five pretreatment methods: dilute acid, dilute alkali, sodium chlorite (SC)/acetic acid (AA) oxidation, acid-catalyzed γ-valerolactone organosolv, and lactic acid-based deep eutectic solvent. The resulting films were evaluated for chemical composition and degree of polymerization (DP), and these parameters were correlated with visual transparency, mechanical strength, wettability, barrier properties, and biodegradability. Crosslinking with the green reagent 1,4-butanediol diglycidyl ether was employed to further enhance performance. The results show that pretreatment-induced changes in lignin, xylan, and DP significantly influence film properties, while crosslinking markedly increases tensile strength and water-vapor resistance without compromising biodegradability. Among the crosslinked samples , the crosslinked RC films derived from SC/AA-pretreated CS exhibited superior transparency, a tensile strength of 16.90 MPa, the lowest water contact angle of 34.33° and the highest water vapor barrier properties. These findings demonstrate that strategic pretreatment and crosslinking enable the production of sustainable RC films with tunable properties, offering an eco-friendly alternative to petroleum-based materials.
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ACS Nano
·
2026
·
IF 16
Tianyuan Xiao,Lu Wu,Lingzhi Huang,Xuanjia Yu,Wenchao Jia,Xueru Sheng,Fengshan Zhang,Yanzhu Guo,Pedram Fatehi,Haiqiang Shi
The formation of low molecular weight lignin nanoparticles (LMW-LNPs) remains challenging due to their severe self-aggregation effect as well as thermal instability, hindering their scalability and functional applications. This study develops a novel γ-valerolactone (GVL)/deep eutectic solvent (DES) biphasic system incorporating polyol-based hydrogen bond donors (HBDs) to systematically modulate the hydrogen bond acidity of DES, enabling selective depolymerization of industrial lignin in acid lithium bromide hydrate (ALBTH) while effectively suppressing lignin condensation. The optimized system achieved a low lignin molecular weight of 1213 g/mol with minimal condensation, yielding monodisperse low-molecular-weight lignin nanoparticles (LMW-LNPs) with an average diameter of 92.3 nm. Mechanistic investigations using the veratrylglycerol-β-guaiacyl ether (VG) model compound revealed that lignin aryl ether bonds are cleaved via hydrogen transfer from the DES-HBD component, which disrupts the condensation pathway through competitive hydrogen bonding. The LMW-LNPs which maintain structural integrity while achieving depolymerization during the preparation of lignin-based materials exhibit efficient photothermal conversion and dye adsorption properties. They offer a transformative approach for the sustainable production of functional lignin nanomaterials with customized properties, addressing key challenges in the value-added utilization of lignin and promoting advanced applications of lignin-based materials.
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BIORESOURCE TECHNOLOGY
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2026
·
IF 8.2
Fangyuan Zhou,Kezhen Jia,Hongke Zhang,Wanbin Zhu,Hongliang Wang
Develop AlCl 3 -assisted mechanochemical strategy enabling efficient one-pot conversion of recalcitrant cellulose to HMF. • Synergistic interplay between Lewis acidity and mechanical stress disrupts H-bonding networks and lowers crystallinity, markedly enhancing the chemical reactivity of cellulose. • Optimization of the Brønsted/Lewis acid balance by controlled HCl addition achieves a high HMF yield of 62.8% from mechanochemically pretreated cellulose. • This green and scalable approach can be broadly extended to diverse lignocellulosic biomass wastes, including waste paper, corncob residue, bamboo powder, and corn straw, to efficiently produce HMF. 5-Hydroxymethylfurfural (HMF) is a pivotal bio-based platform chemical, yet its direct production from inexpensive and abundant cellulose remains challenging due to the intrinsic recalcitrance of cellulose and the competing degradation of intermediates and products under acidic conditions. Herein, we report an AlCl 3 -assisted mechanochemical strategy that couples catalytic Lewis acidity with ball-milling mechanical force to activate cellulosic feedstocks, enabling their efficient one-pot conversion to HMF. Detailed structural characterizations demonstrate that the synergistic interplay between AlCl 3 and mechanical stress disrupts the extensive hydrogen-bonding network and partially cleaves β-1,4-glycosidic linkages, leading to pronounced reductions in cellulose crystallinity and degree of polymerization and, consequently, markedly enhanced chemical reactivity. The resulting mechanochemically pretreated cellulose (BMM-AlCl 3 ) was directly converted into HMF without additional catalysts during the reaction step, as the Al species introduced during pretreatment served as the catalytic sites, affording a yield of up to 46.8%. By further optimizing the Brønsted/Lewis acid balance through controlled HCl addition, the HMF yield increases to 62.8%. Importantly, this pretreatment strategy is broadly applicable to diverse lignocellulosic biomass resources, including waste paper pulp, corncob residue, bamboo powder, and corn straw, consistently delivering high HMF yields. This work establishes an efficient and potentially scalable mechanochemical route for the valorization of cellulose and lignocellulosic biomass into HMF. Download: Download high-res image (185KB) Download: Download full-size image
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BIOMACROMOLECULES
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2026
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IF 5.9
Changgeng Li,Lu Wu,Zhongshan Wang,Rui Xiao,Lina Shi,Wenchao Jia,Lingzhi Huang,Haiqiang Shi
The poor compatibility and low degree of substitution of lignin severely limit its application as a polyol substitute in polyurethane elastomers. Herein, by regulating the molecular weight of lignin, high-content and uniform bonding of lignin in polyurethane (PU) has been achieved. Even at a substitution degree of 15%, lignin can still be fully integrated into the macromolecular chains of PU, resulting in a 27% increase in tensile strength and a 124% increase in elongation at break of the elastomer, respectively. Furthermore, a remarkable enhancement of over 165% in the tensile strength of the elastomer has been realized through adjusting the molecular weight of lignin. And through life cycle assessment, the importance of using lignin as a substitute for polyols has been confirmed. Notably, the thermal stability and surface hydrophobicity of the elastomer have also been significantly improved, and it can be combined with MXene to fabricate composite devices with sensitive strain responsiveness. This promising advancement is expected to promote the green and sustainable development of PU and its application in multifunctional wearable devices.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Fei Wang,Zeping Tan,Wenhao Yi,Fuquan Xiong
Superhydrophobic coatings can effectively enhance the stability and durability of moisture-absorbing materials like wood. Yet, their poor environmental compatibility, weak mechanical durability, and limited functionality hinder further practical use. Herein, a fluorine-free superhydrophobic wood coating was constructed using lignin nanospheres via a simple spray-coating process. The hydrophobic performance of the coating shows a nonmonotonic dependence on the octadecyltrichlorosilane (OTS) amount. Insufficient OTS results in a sparse and adhesive surface, whereas excessive OTS buries the hierarchical structure. Under ideal conditions with a mass-to-volume ratio of 3.3 μL/mg between the OTS and lignin, the coating develops a unique hierarchical structure that demonstrates exceptional superhydrophobicity (contact angle: 163.6° ± 0.5°, rolling angle: 5.3° ± 0.2°) and self-cleaning capabilities. The superhydrophobic coating maintains structural integrity and performance stability under various mechanical damage conditions. Furthermore, the coating exhibits significant photothermal effects, maintaining consistent temperature increases across five heating/cooling cycles, demonstrating excellent thermal stability. Leveraging its superior photothermal conversion capability, the coating enables efficient active deicing and rapid detachment upon substrate inclination. This study provides an innovative approach for the high-value utilization of lignin and the development of green, multifunctional, superhydrophobic coatings.
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