APPLIED CATALYSIS B-ENVIRONMENTAL
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2025
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IF 21.1
Zixin Xie,Xihong Zu,Qianwei Lai,Yicheng Cao,Xueqing Qiu
Hydrogen production by biomass electrolysis offers a promising and sustainable route for producing green hydrogen and high-value utilization of biomass. However, this process consumes electricity and suffers from low anode Faraday efficiency of the organic electro-oxidation reaction. Herein, we develop a novel strategy that integrates a room-temperature, high-power lignin-derived aldehyde flow fuel cell (FFC) with hydrogen production, which converts the power-consuming electrocatalytic hydrogen production step into an electricity-generating process. The highly active Ag-Cu x O/CF (copper foam) electrocatalyst exhibits dual functionality of efficient electricity generation and simultaneous hydrogen production by catalyzing low-potential aldehyde group oxidation at the anode, which concurrently releases electrons and generates hydrogen. The Ag-Cu x O/CF electrocatalyst can significantly improve the electron transfer rate and catalytic conversion efficiency of the anode, attributable to its mixed Cu 0 /Cu + valence states, enlarged double-layer capacitance (C dl ), reduced interfacial resistance, and optimized adsorption capacity. The Ag-Cu x O/CF catalyst achieves ∼95 % benzaldehyde conversion and ∼98.4 % Faradaic efficiency for hydrogen production at 0.35 V RHE . Furthermore, the FFC based on Ag-Cu x O/CF electrocatalyst demonstrated excellent dual-functionality at room temperature, achieving both a power density of 173.5 mW cm −2 and a hydrogen production rate of 1.96 mmol cm −2 h −1 . The constructed FFC achieved a room-temperature power density threefold greater than the reported lignin-based power generation technology, while maintaining comparable hydrogen production rate to biomass electrolysis processes. This study provides a novel approach to reduce the cost of green hydrogen production and mitigate the global energy crisis.
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高影响因子
GREEN CHEMISTRY
·
2025
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IF 9.2
Quan Yan,Bai-Liang Xue,Xiaojie Xie,Wenliang Wang,Xin-Ping Li,Xiaojun Shen,Xianzhi Meng,Wei Zhao
The valorization of lignin into high-performance polymeric materials remains a significant challenge, primarily due to the inherent complexity of conventional synthetic methodologies and the non-reprocessable nature of derived polymers. In this study, we present a convenient one-pot strategy to access fully bio-based lignin-integrated polymers endowed with reprocessability. This approach leverages the side reaction, free radical termination, during the synthesis of star-shaped lignin graft copolymers via radical polymerization, enabling the initial formation of a primary permanent network and concurrently enhance monomer utilization (95.6% conversion vs. 62.1% in conventional star polymer). Subsequently, carboxylic acid-terminated poly(lactic acid) oligomers are employed as green cross-linking agents to establish a secondary adaptive network via transesterification reactions. The resulting dual-network polymers exhibit tunability in mechanical properties and excellent reprocessability while retaining structural integrity. Notably, these dual-network systems demonstrate an 18.5±1.9-fold enhancement in mechanical strength compared to their linear polymer counterparts. Moreover, these materials demonstrate remarkable super hydrophobicity (contact angle >108°), enhanced thermal stability, and distinctive light-responsive behavior. This work presents a paradigm-shifting methodology that strategically repurposes side-reaction pathways to synthesize sustainable polymers, advancing the development of sustainable materials for circular economies.
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JOURNAL OF THE ENERGY INSTITUTE
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2025
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IF 6.2
Wenyuan Duan,Shaoquan Chen,Jiale Lu,Yutong Li,Miaomiao Li,Jianjing Gao,Yuzhen Zhao
Lignin, an abundant byproduct of lignocellulosic biorefineries, exhibits significant potential as a renewable feedstock for the production of value-added aromatic chemicals and high-energy-density biofuels due to its complex, highly aromatic polymeric structure. In this study, we investigated the effect of a Co-loaded HZSM-5 (50) (HZ) catalyst on oxidative valorization of kraft lignin under mild conditions of air. The bio-oil yield was increased with the increasing loading of Co, and was obtained to be 45.3 wt.% at 140°C/ 30 min. The desilication of zeolite exhibited a promising impact on the depolymerization of lignin, and the bio-oil was significantly enhanced to 51.8 wt.% with 10Co/HZ-n catalyst. Herein. The effect of metal promoters (Zn, Fe, and Nb) were also comprehensively determined by their successive loading on 10Co/HZ-n catalyst. The maximum bio-oil yield (67.3 wt.%) was evaluated with 10Co-3Nb/HZ-n catalyst at 120°C/ 30 min, reaction conditions. Additionally, the reusability performance of the 10Co-3Nb/HZ-n catalyst was examined for up to four catalytic cycles. The elemental analysis of bio-oils showed a significant improvement in the quality in terms of high calorific value (36.8 MJ/kg) for the 10Co-3Nb/HZ-n. Additionally, vanillin (68.2%) was observed as the main selective catalytic product, and its maximum selectivity was also determined for the optimum 10Co-3Nb/HZ-n bio-oil. The study emphasises the role of high metal valent ions in the selective fractionation of lignin into valuable phenolic compounds.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·Vol. 14
·期 30
·13802-13811
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IF 7.6
Xu Xinyue,Xu Ying,Shi Siwen,Wen Jialong,Yuan Tongqi
The development and functional utilization of light-colored lignin are largely hindered by uncontrolled condensation reactions during extraction, which reduces lignin reactivity and compromises its functional performance. Herein, a formic acid/L-Cysteine (FA/L-Cys) pretreatment system was developed to fractionate functional light-colored lignin from bamboo. Under mild conditions (100 ° C, 1 h), this system achieved 95.3% delignification and 71.3% lignin recovery, affording pale beige lignin with a lightness value of 80.9. 2D-HSQC NMR analysis revealed that L-Cys suppressed lignin condensation by nucleophilically trapping reactive intermediates. When incorporated into a sun protection factor (SPF) 15 sunscreen formulation at 5 wt %, the optimized lignin (L-Cys-0.3) increased the SPF to 71.7. Moreover, L-Cys-0.3-derived lignin nanoparticles efficiently stabilized Pickering emulsions and exhibited a 12-fold enhancement in UV absorption capacity compared with their LNPs aqueous dispersion counterparts. This work highlights condensation-controlled fractionation as an effective strategy for producing light-colored lignin with potential applications in sustainable sunscreens and functional Pickering emulsion systems.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Yuejie Qiu,Zhenchang Wang,Huaizhi Pan,Yingxuan Chen,Li Ji,Jiufang Duan,Jianxin Jiang
Carboxyl group number (CGN) in hydroxy acids serves as a molecular design parameter. • Lignin condensation is minimized by tuning CGN, preserving its antioxidant structure. • A CGN-dependent steric-electronic synergy mechanism prevents XOS side reactions. • Integrated production of prebiotic XOS, glucose, and antioxidant lignin is achieved. • A green, scalable biorefinery was developed to advance the circular bioeconomy. This study proposes a sustainable biorefinery strategy for converting waste Gleditsia sinensis pods into high-value fine chemicals using hydroxy acids, with the carboxyl group number (CGN) serving as a critical molecular design parameter. The results showed that increasing CGN changes the composition of XOS, increases XOS yield, promotes glucose conversion, and protects lignin structure. The highest xylooligosaccharide (XOS) yield of 62.88% was achieved with citric acid pretreatment (CGN = 3), which reduced furfural formation by 43.8% compared to lactic acid (CGN = 1), resulting in 98.05% glucose conversion. The lignin structure remained largely intact, with a retention rate of 53.04% per 100 Ar of β-O-4′ bonds and phenolic hydroxyl content of 4.36 mmol/g. This preserved lignin structure enhanced antioxidant activity (75.38%) in DPPH radical scavenging compared to BHT. Besides, XOS produced via acid pretreatment at 150 °C for 30 min showed enhanced prebiotic effects, promoting the growth of Bifidobacterium adolescentis by 53% and increasing propionic acid production by 300% relative to commercial fructooligosaccharides. Structural analyses indicated that CGN protects lignin through intramolecular hydrogen bonding and chelation, thereby suppressing condensation. Overall, this environmentally sustainable biorefinery approach efficiently converts agricultural waste into high-value products, supporting advances in the food, feed, and materials sectors. Download: Download high-res image (125KB) Download: Download full-size image
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Bingzhen Liu,Chengju Deng,Fangfei Sun,Kun Wang,Yongliang Zhuang,Hui Li
The extensive use of petroleum-based plastics in food packaging has contributed to escalating environmental pollution and the persistent accumulation of microplastics, driving the development of sustainable and biodegradable alternatives. In this study, an active chitosan (CS)-based film was developed by incorporating a polyphenol-rich extract (GWHE) and lignin nanoparticles (LNPs), both valorized from green walnut husk waste, into the CS matrix. The synergistic interaction between GWHE and LNP effectively densified the polymer network by enhancing intermolecular interactions, thereby significantly improving the structural integrity and physicochemical properties of CS films. The optimized composite film (CS/GWHE/LNPs-5 %) exhibited 100 % UV-shielding, a 159.13 % increase in tensile strength, and significant reductions in water vapor permeability (51.47 %), oxygen permeability (55.93 %), and water solubility (49.18 %) compared to pure CS. Additionally, the film displayed potent antioxidant activity (ABTS and DPPH radical scavenging >95 %) and strong antibacterial activity against S. aureus and E. coli (>90 % inhibition), while maintaining excellent biodegradability and biosafety. Practical application to fresh walnut kernels demonstrated that the film effectively mitigated moisture loss, suppressed lipid oxidation, and inhibited microbial spoilage during room-temperature storage, thereby prolonging shelf-life to 15 days. Overall, this work offers a sustainable strategy for developing active food packaging while promoting the high-value utilization of agricultural waste and advancing circular bioeconomy development.
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高影响因子
DESALINATION
·
2026
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IF 9.9
Jingbo Su,Aoqi Xing,Junxu Hu,Yun Wu,Jinghui Zhou,Jingyu Xu,Xing Wang
In response to water scarcity and energy crises, solar-driven interfacial evaporation technology offers a highly promising industrial solution for seawater desalination due to its “zero energy consumption” and environmentally friendly characteristics. The aromatic ring structure of lignin exhibits excellent light absorption properties, making it a highly suitable material for interfacial evaporation photothermal applications. This study employs electrospun lignin nanofiber membranes that have undergone high-temperature carbonization, with Fe₃O₄ nanoparticles in situ loaded onto their surfaces to form a photothermal layer. Polyvinylidene fluoride (PVDF) serves as both a binder and hydrophobic modifier, bonding at the interface with delignified wood blocks (DW). Based on this design, the fabricated LCNFs/Fe₃O₄@DW evaporator achieves an evaporation rate of 1.76 kg·m −2 ·h −1 under one standard solar irradiance, with an evaporation efficiency of approximately 88.54%, outperforming most conventional wood-based or carbon-based photothermal evaporators. Long-term cycling tests and simulated seawater evaporation experiments demonstrate the material's excellent salt resistance and purification durability. In summary, this study not only validates the application potential of lignin-based nanofiber composites in solar thermal conversion but also achieves functional integration of “solar desalination, salt resistance and scale prevention, and water purification” through precise Janus surface design. It provides a novel strategy that combines environmental sustainability with practical applicability for industrializing solar-driven interfacial evaporation technology.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.5
Zhiwei Chang,Yuang Ma,Ming Li,Ruijia Hu,Chenjie Zhu,Hanjie Ying
Utilizing lignin as a complete substitute for petroleum-derived phenol to synthesize non-toxic lignin-based resin adhesives with bio-based aldehydes holds substantial significance for advancing sustainable development in the wood-based panel industry. Nevertheless, the poor bonding strength, toughness, and water resistance of phenol-free lignin-based resins hinder their practical application. Herein, inspired by the hyperbranched structures of loose connective tissue, borate chemistry of plant cell walls, and Fe 3+ -phenol coordination bonds of mussel foot proteins, a tough, strong, water-resistant, and multifunctional lignin-based resin adhesive is fabricated through introducing phenylboronic acid-grafted hyperbranched polyamide (HBPB), Fe 2 (SO 4 ) 3 , and furfural into the lignin matrix to construct lignin-based supramolecular networks. HBPB-induced microphase separation structure disperses mechanical stress and inhibits crack evolution. Meanwhile, hyperbranched phenylboronic ester bonds optimize the crosslinking strength and cohesive force. Furthermore, Fe 3+ -phenol coordination bonds facilitate the formation of hydrophobic structures to prevent moisture intrusion. Consequently, the fracture toughness, bonding strength, and wet bonding strength of the resin are 23.4, 6.1, and 5.4 times higher than those of the unmodified resin. Moreover, the resin exhibits excellent flame retardancy, recyclability, degradability, biosafety, and plant-growth promotion after degradation. This biomimetic design provides an effective approach to develop tough, strong, water-resistant, and multifunctional bio-based adhesives.
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PubMed
高影响因子
FUEL
·
2026
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IF 7.8
Xingping Kai,Zhaowei Liu,Tianhua Yang,Tao Zhang,Bingshuo Li,Shiyu Feng,Rundong Li
The development of efficient metal-modified core–shell molecular sieve catalysts for the catalytic co-pyrolysis of lignin and plastics to produce aromatics is an effective way to achieve high-value utilization of waste materials. In this study, x-Fe@HZSM-5/SBA-15 (x-Fe@H/S) catalysts (x represents Si/Al) of HZSM-5 cores with Fe-Si-Al as the backbone were synthesized by isomorphous substitution and covered with an SBA-15 shell. The effects of the Si/Al ratio and Fe isomorphously substituted Al in the catalysts on the product distribution, and the formation characteristics of aromatics were investigated during the co-pyrolysis of dealkalized lignin (DL) and high-density polyethylene (HDPE). The catalyst’s cyclic regeneration performance was also analyzed. The results indicated that the pore size and acidic site distribution of the catalysts could be regulated by the Si/Al ratio, thereby promoting aromatics formation. Among them, 50-Fe@H/S exhibited the best performance, with high activity, appropriate mesopore size, and moderate acidity (0.25 mmol/g), achieving the highest bio-oil content (20.54 wt%) and aromatics content (25.96 area%). Meanwhile, the regenerated 50-Fe@H/S maintained satisfactory catalytic performance. Based on the experimental results, the aromatics formation pathways during catalytic co-pyrolysis over x-Fe@H/S were proposed, and the effects of Fe incorporation were analyzed using density functional theory.
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Advanced Composites and Hybrid Materials
·
2023
·Vol. 6
·期 3
·1-14
·
IF 20.1
Wang Xinyu,Shen Yi,Xu Shijian,Huang Caoxing,Lai Chenhuan,Yong Qiang,Chu Fuxiang,Algadi Hassan,Zhang Daihui,Lu Chuanwei,Wang Jifu
With the rapid development of wearable devices, the fabrication of strong and tough ionic conductors for multifunctional wearable sensors has become crucial. However, developing ionic conductors with high mechanical strength and elasticity, excellent toughness, satisfactory conductivity, and self-healing is extremely difficult owing to their inherent structural design contradictions. Herein, we propose a lignin mediated biomimetic multiphase structure integrated with a multiple noncovalent interaction strategy to simultaneously increase the strength and toughness of ionic conductors without compromising their conductivity and self-healing ability. The in situ self-assembly of modified lignin to generate nanosphere structures as dynamic chemical crosslinkers realized the construction of a soft–hard multiphase. Furthermore, the charged lignosulfonate positively promoted the conductivity of ionic conductors, eliminating the traditionally observed negative effect of high crosslinking density on the conductivity. This, combined with multiple noncovalent interactions in the soft and hard phases, synergistically contributed to the impressive properties. The synthesized ionic conductors exhibited impressive mechanical properties corresponding to a maximum tensile strength of 7.14 MPa and maximum toughness of 23.3 MJ/m 3 , excellent elasticity, high conductivity, and good solvent resistance. More importantly, the conductors maintained the self-healing ability despite the excellent mechanical properties. The high-performance strain and pressure sensors manufactured from these materials demonstrated satisfactory sensitivity (S = 0.358–0.653), relatively fast response (386 ms), and long-term reliability (1300 cycles). This work overcomes the challenge of integrating several important but contradictory properties of ionic conductors and paves the way for the fabrication of sustainable and multifunctional wearable sensors suitable for harsh environments. Graphical Abstract Summary Ultra-strong, stretchable lignin-based ionic conductors with multiscale biomimetic design for sustainable and multifunctional wearable pressure and strain sensors.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2023
·
IF 4.5
Jifang Zhang,Chengcheng Suo,Jinde Sun,Wei Li,Sha Luo,Chunhui Ma,Shouxin Liu
In this study, C α –C β and C β –O bond cleavage of β-O-4 model compound (2-phenoxy-1-phenylethanol) were accomplished by electrocatalysis depolymerization process in deep eutectic solvents (DES) systems. We have investigated the application of Ni-Co/C catalysts on working electrode, which were synthesized with impregnation method. The Ni-Co/C with porous structure and abundant active sites, was shown an excellent electrocatalysis activity. Specific structure of Ni-Co/C could provide greatly efficient adsorption and desorption capacity to promote C α –C β and C β –O bond cleavage. Therefore, in this electrocatalysis depolymerization process, the highest depolymerization rate exceeded 90%. And the yields (and conversion rates) of products (including benzaldehyde, acetophenone, benzoic acid, phenol) can reach to 124.08 mg/g (25.05%), 23.29 mg/g (4.15%), 44.64 mg/g (7.83%), 30.3 mg/g (6.9%). Furthermore, the electrocatalysis mechanism of C α –C β and C β –O bond was investigated. The cleavage of C α –C β and C β –O bond was initiated by in situ generated free radicals through Ni-Co/C. Then, the cleavage of C α –C β and C β –O bond were occurred by ·OH and ·O 2 − . The results were showed that the C α –C β bond cleavage was more in line with the β-C elimination and free radical pathways, and C β –O bond cleavage was consistent with direct oxidative addition. The enhanced electrocatalytic efficiency of the low-cost Ni-Co/C electrocatalyst combined with its good chemical stability and selectivity, which offer a promising route for developing an efficient lignin depolymerization technology.
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高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2023
·
IF 5.2
Ruixue Yangcheng,Yuntong Cui,Shuang Luo,Jiansu Ran,Jianjian Wang
Developing an efficient and stable catalyst for the aqueous hydrodeoxygenation (HDO) of lignin derivatives at ambient temperature is highly desirable. Here, a novel Pd/PHS catalyst with the hierarchical structure was facilely constructed. Taking HDO of vanillin (VAN, a typical molecule of lignin derivatives) to 2-methoxy-4-methyl phenol (MMP) as a model reaction, >99% VAN conversion and 98.2% MMP yield can be achieved over Pd/PHS at ambient temperature in a water solvent, outperforming the recent works reported in the literature. We found that the hierarchal zeolitic structure could immobilize acidic P species in Pd/PHS via trapping and hydrogen-bonding, and these P species could greatly accelerate the conversion of reaction intermediate, enhancing the yield of MMP product. Pd/PHS also showed excellent activities in HDO of other lignin derivatives. We think this work will provide a new route to guide the design of stable catalyst for the efficient aqueous HDO of lignin derivatives to high value-added chemicals and biofuels at ambient temperature.
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高影响因子
危险品化学品经营许可证（带存储）