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SSRN 2024年

作者： Ling, Weikang Ma, Jiliang Jiang, Weikun Wei, Huanqiu Ren, Yuchen Hong, Min Kong, Lingzhao Sun, Runcang Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery College of Light Industry and Chemical Engineering Dalian Polytechnic University Dalian116034 China State Key Laboratory of Bio-based Materials and Green Papermaking Key Laboratory of Pulp & Paper Science and Technology of Shandong Province Ministry of Education Qilu University of Technology Shandong Academy of Sciences Jinan250353 China Centre for Future Materials School of Engineering University of Southern Queensland Springfield CentralQLD4300 Australia School of Environmental Science and Engineering Suzhou University of Science and Technology Jiangsu Suzhou China China

The construction of p-n heterojunction is considered a prominent method for promoting efficient separation/migration of photoinduced carriers, thereby enhancing photocatalytic performance. Herein, a series of nanoflower spherical Co(OH)2@CN-x p-n heterojunction photocatalysts were fabricated using a simplified one-step hydrothermal strategy. Notably, Co(OH)2@CN-2 exhibited optimal performance, showcasing a CO evolution rate of 46.2 μmol g-1 h-1 and a xylonic acid yield of 69.9%. These values are 14.7/3.7 and 2.8/2.4 times higher than those of pristine CN and Co(OH)2, respectively. Additionally, Co(OH)2@CN-2 demonstrated excellent recyclability and chemical stability. Comparative experiments, coupled with 13CO2-labelling testing, confirmed the carbon sources of the obtained CO (72.3% from CO2 reduction and 27.7% from xylose oxidation). The charge transfer mechanism in Co(OH)2@CN-x p-n heterojunctions was systematically elucidated using in-situ X-ray photoelectron spectroscopy and density functional theory calculations. This work presents a practical approach for constructing p-n heterojunction photocatalysts to enhance photocatalytic biomass oxidation coupled with CO2 reduction. © 2024, The Authors. All rights reserved.

关键词： Density functional theory

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Morphological effect of waxberry-like superstructured carbon enabling high-performance aqueous zinc-ion battery with prolonged cyclability and reliable operability in cold environment

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Chemical Engineering Journal 2025年 515卷

作者： Li, Jinming Li, Xiang Hu, Jindong Guo, Chaochao Liu, Guoxin Liu, Yang Huan, Siqi Li, Zhiguo Key Laboratory of Bio-based Material Science and Technology of Ministry of Education College of Material Science and Engineering Northeast Forestry University Harbin150040 China Department of Intelligent Control Yantai Vocational College Yantai264670 China

The practical adoption of aqueous energy storage devices hinges on advancing high energy density, long cycle life, and environmental tolerance, which concentrates on the rapid transport of multivalent electrolyte ions within electrodes. Aiming to address the limitations of traditional carbon electrodes, we proposed the morphological modulation of bio-derived superstructured carbon. Waxberry-like superstructured carbon (WSCC) with interconnected surface open-pore and internal gradient channels was constructed by regulating the hydrophilicity of the hydrophobic part in the carbon precursor molecules. After loading MnO2 and Zn on WSCC, waxberry-like cathode and anode for aqueous zinc-ion batteries (AZIBs) were produced, both featuring the waxberry-like morphology and highly effective porosity matching Zn2+. Benefiting from the morphology effect of WSCC, the transport of Zn2+ was switched from inter-particle-type to interfacial-type within the electrodes, enhancing transport rate and accessibility. The assembled AZIBs exhibited a high energy density of 367.13 Wh kg−1. Meanwhile, the waxberry-like morphology minimized the nucleation barrier and altered zinc dendrite growth direction to delay the deterioration of AZIBs. Therefore, excellent cycling stability with capacity retention of 97 % was displayed up to 4,000 cycles, a significant improvement of 60 % over the cycle numbers of bare Zn. Moreover, the AZIBs showed superior low-temperature performance and reliable operability due to the unique morphological effect of WSCC, exhibiting a specific capacity of 164.67 mAh g−1 at −20 °C and stable cyclability between −20 and 20 °C over three cycles. The bio-based high-performance AZIBs combine cycling stability and low-temperature tolerance while meeting the demands of scalability and sustainability. © 2025 Elsevier B.V.

关键词： Carbon capture and storage

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Scalable Production of Robust and Creep Resistant Ultra-High Filled Wood-Plastic Composites

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SSRN 2024年

作者： Yang, An Liao, Zhengyu Xu, Zesheng Liu, Tian Fang, Yiqun Wang, Weihong Xu, Min Song, Yongming Li, Yao Wang, Qingwen Key Laboratory of Bio-based Material Science and Technology Ministry of Education Northeast Forestry University Heilongjiang Harbin150040 China College of Home and Art Design Northeast Forestry University Harbin150040 China Shandong Xingang Enterprise Group Co. Ltd. Linyi277600 China Center for Composite Materials and Structure Harbin Institute of Technology Heilongjiang Harbin150001 China College of Materials and Energy South China Agricultural University Guangzhou510642 China

With the widespread use of wood-based materials in human life, the availability of wood resources has gradually decreased. The use of low-value wood, without the need for chemical adhesives, has emerged as an effective strategy for addressing the crisis of depleting wood resources in the preparation of wood-based composites. In this study, a high-performance ultra-high filled wood-plastic composites (UFWPC) composed of wood flour (up to 95 wt.%) was prepared through cell wall densification and the construction of multiple cross-linked network structures via deep cross-fusion. The UFWPC exhibits excellent mechanical properties, the flexural strength of UFWPC is 5.9 times that of commercial particleboard, 2.1 times that of commercial fiberboard, and 2.6 times that of commercial wood-plastic composites. Additionally, UFWPC demonstrates excellent creep resistance, the creep strain is 76.79% lower than that of commercial wood-plastic composites. Furthermore, an innovative customization of a large-scale commercial continuous flat-pressing system was established to produce UFWPC. The highly efficient preparation of UFWPC positioned it as an excellent substitute for commercial wood-plastic composites, particleboard, and fiberboard. This approach provides a promising valorization and sustainability pathway for recycling plastics and low-value wood. © 2024, The Authors. All rights reserved.

关键词： Creep resistance

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Construction of a Self-Supporting Catalyst based on bionic Honeycomb Communication Channel from biomass Cork Waste for Hydrogen Evolution

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SSRN 2022年

作者： Zhai, Wenxiang Sun, Hao Zhang, Kun Ren, Zechun Ji, Tong Li, Yalan Wei, Xinli Xu, Min Cai, Liping Key Laboratory of Bio-Based Material Science and Technology Ministry of Education Material Science and Engineering College Northeast Forestry University No. 26 Hexing Road Xiangfang District Harbin150040 China Northeast Forestry University China Department of Mechanical Engineering University of North Texas 3940 N. Elm St. DentonTX United States

It is a great challenge to achieve efficient hydrogen evolution reaction (HER) in alkaline medium. Multi-layer functional carbon can provide abundant anchor points for metal nanostructures, showing great potential in improving the catalytic activity of electrolyzed water in alkaline medium. Inspired by honeybee hives, an efficient hydrogen evolution electrode (RuNi-LMH@NCNT/CW) was developed by structuring multi-directional N-doped carbon nanotubes on porous carbonized cork (CW), which encapsulates Ru/RuNi nanoparticles uniformly grown on Ni(OH) 2 nanostructures. Interestingly, the whole encapsulation of Ni(OH) 2 nanostructured doped Ru/RuNi nanoparticles by carbon nanotubes was obtained. The exposed active edges of multilayer porous nanostructures and the high conductivity of the carbonized cork jointly improved the electrocatalytic performance of HER. Specifically, the RuNi-LMH@NCNT/CW electrode showed an overpotential as low as 67mV, achieved excellent HER activity with a current density of 10mA cm −2 in 1 M KOH solution and showed a low Tafel slope of 41.3mV dec −1 , while having excellent stability in alkaline medium. This study provides a bionic composite structure for electrolyzing water to produce hydrogen. In addition, to a certain extent, this study solves the problem that it is difficult to load active particles caused by cork sealing cell structure. © 2022, The Authors. All rights reserved.

关键词： Catalyst activity

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Subtle Side Chain Triggers Unexpected Two-Channel Charge Transport Property Enabling 80%Fill Factors and Efficient Thick-Film Organic Photovoltaics

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The Innovation 2021年第1期2卷 173-182页

作者： Yonghai Li Lu Yu Liangliang Chen Chenyu Han Huanxiang Jiang Zitong Liu Nan Zheng Jiuxing Wang Mingliang Sun Renqiang Yang Xichang Bao CAS Key Laboratory of Bio-based Materials Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China School of Material Science and Engineering Ocean University of ChinaQingdao 266100China Functional Laboratory of Solar Energy Shandong Energy InstituteQingdao 266101China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640China School of Materials Science and Engineering Qingdao UniversityQingdao 266071China Key Laboratory of Optoelectronic Chemical Materials and Devices(Ministry of Education) School of Chemical and Environmental EngineeringJianghan UniversityWuhan 430056China

To clearly show how important the impact of side chains on organic solar cells(OSCs)is,we designed three acceptors IDIC-CxPh(x=4,5,or 6)via subtle side-chain *** this small change,significant distinctions were ***-C4Ph devices achieve an optimal efficiency of 13.94%under thermal annealing,but thermal-assistant solvent-vapor annealing hugely suppresses the efficiencies to 10%.However,the C6Ph side chain endows extremely disordered stacking orientations,generating moderate efficiencies of~12.50%.Excitingly,the IDIC-C5Ph affords an unexpected two-channel p-p charge transport(TCCT)property,boosting the fill factor(FF)by up to 80.02%and efficiency to 14.56%,ranking the best among five-ring fused-ladder-type ***,the special TCCT behavior of IDIC-C5Ph enables 470 nm thick-film OSC with a high FF of up to 70.12%and efficiency of 13.01%,demonstrating the great promise in fabricating largescale OSCs.

关键词： organic solar cells side chain molecular assembly twochannel charge transport thick-film

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Lignocellulose aggregation effect facilitates zinc anode crystal plane optimization for dendrite-free zinc deposition

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Chemical Engineering Journal 2025年 517卷

作者： Xinyi Zhou Yonggui Wang Zongying Fu Yun Lu Key Laboratory of Bio-based Material Science and Technology Ministry of Education College of Material Science and Engineering Northeast Forestry University Harbin 150040 PR China Research Institute of Wood Industry Chinese Academy of Forestry Beijing 100091 PR China

To address the inherent challenges of zinc metal anodes, framing an artificial solid electrolyte interface (SEI) layer on the zinc metal anode is a simple and effective strategy. This work innovatively introduces the aggregation effect of lignocellulose, utilizing the aggregated structures of cellulose, hemicellulose, and lignin to direct deposition on the (002) crystal plane of the anode interface, optimizing the diffusion and nucleation of zinc ions. This optimization significantly alleviates dendrite formation, thereby promoting the flattening of the zinc anode surface. Moreover, the lignocellulose-based SEI exhibits dual properties of hydrophilicity and zinc affinity. The zinc-affinitive groups can improve the solvation structure of electrolyte ions, suppress the hydrogen evolution reaction (HER), and enhance the reversibility of the zinc anode. The highly active carboxyl groups can react in situ with the zinc anode to form a stable, hydroxyl-rich protective layer. Experimental results further validate the effectiveness of the lignocellulose-based SEI, with symmetrical cells exhibiting stable cycling for over 2256 h at 2 mA cm −2 and 1 mAh cm −2 . Notably, the Zn || V₂O₅ full-cell delivers a high specific capacity of 468.2 mAh g −1 and maintains 125.9 % capacity retention after 5500 cycles at 5 A g −1 . The lignocellulose coating not only provides physical protection for the zinc anode interface but also fundamentally regulates its surface redox potential. Furthermore, this study, from an electrochemical perspective, is the first to confirm that hemicellulose shields the aggregation effect of cellulose and lignin, providing an experimental basis for future research on the aggregation effects of lignocellulose.

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High Specific Surface Mxene (Ti3c2tx)/Carbon Nanotube/Cellulose Nanofiber Aerogel Film as a Free-Standingelectrode for Flexible Supercapacitors

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SSRN 2022年

作者： Lyu, Shaoyi Chang, Huanjun Zhang, Longfei Wang, Siqun Li, Shanming Li, Shujun Research Institute of Wood Industry Chinese Academy of Forestry Beijing100091 China Center for Renewable Carbon University of Tennessee KnoxvilleTN37996 United States Key Laboratory of Bio-based Material Science and Technology of Ministry of Education Northeast Forestry University Harbin150040 China

The transition metal carbonitrides (Mxenes) of two-dimensional layered structures are recent research topics in the field of supercapacitors. However, because Mxene is easy to self-stack, it affects its capacitance performance, and the lower strength limits its application in flexible electronic devices. To this end, one-dimensional cellulose nanofibers (CNF) and carboxylic single-walled carbon nanotubes (SWCNT) are used to intercalate and disperse Mxenes to obtain well-dispersed MXene/SWCNT/CNF aqueous suspension and its hybrid hydrogel, and further to obtain hybrid aerogel through supercritical drying. CNF with a high aspect ratio gives hybrid aerogel excellent porosity, high specific surface area (301.03 m² g -1 ), good electrolyte infiltration, and gradely mechanical flexibility, while SWCNT confers high conductivity to hybrid aerogel film. We assemble the symmetrical all-solid-state flexible supercapacitor and interdigitated micro-supercapacitors using the aerogel film as a flexible electrode. Both have excellent electrochemical properties. The area specific capacity of the aerogel film electrode reaches 746.68 mF cm -2 and 244.50 mF cm -2 , respectively, and the electrochemical performance is unaffected when bending occurs. This work provides a preparation method of MXene with excellent porosity, high specific surface area, and eximious flexibility. It gives a new idea for applying flexible electronic devices based on MXene. © 2022, The Authors. All rights reserved.

关键词： Aspect ratio

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Flexible Si/Pedot:Pss Heterojunction Photodetectors with Excellent Interface Contact Quality for Nir Detection

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SSRN 2023年

作者： Chen, Jianian Shen, Honglie Li, Yufang Yue, Zhen Li, Hechao Wang, Chen Xu, Yajun Zhang, Jingzhe Bai, Hang College of Materials Science and Technology Jiangsu Key Laboratory of Materials and Technology for Energy Conversion Nanjing University of Aeronautics and Astronautics Nanjing210016 China Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Changzhou213164 China Jiangxi HAC General Semitech Co. Ltd Jiujiang332001 China Jiangsu Key Lab of Silicon Based Electronic Materials Jiangsu GCL Silicon Material Technology Development Co. Ltd. Xuzhou221000 China

Flexible Si/PEDOTPSS heterojunction photodetectors have gained widespread attention due to their excellent performance and low preparation cost, however, the presence of defects on the Si surface that generate surface states and the poor hydrophilicity of PEDOT:PSS that leads to poor contact between Si and PEDOT:PSS have been limiting the performance of the devices;In this study, an inverted pyramidal structure Si substrate with the smaller specific surface area was selected and the Si to PEDOT:PSS interface quality was improved by doping the PEDOT:PSS solution with the fluorosurfactant FC4430 and vinyltrimethoxysilane (VTMO). It was found that the doping of fluorosurfactant FC4430 could reduce the contact angle of PEDOT:PSS solution on IP substrate from 104.5° to 23°, which greatly enhanced the hydrophilicity of PEDOT:PSS without affecting the electrical properties of the films. The doping of VTMO forms Si-O-Si bonds at the Si/PEDOT:PSS interface, which passivates the defects on the silicon surface and at the same time forms a cross-linking network to improve the adhesion of the PEDOT:PSS, which enables the device to exhibit an extremely low dark current of 4.08 × 10-8 mA. Meanwhile, the prepared flexible Si/PEDOT:PSS photodetector exhibits excellent performance, with a responsivity of 8.74 mA/W, a detectivity of 1.21 × 1012 Jones, and a response speed of 120/480 μs under 0 V bias voltage and laser irradiation at a wavelength of 980 nm. Finally, the bending stability of the device was evaluated and the device performance remained above 95% of the initial value after 50 bending cycles. © 2023, The Authors. All rights reserved.

关键词： Hydrophilicity

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Enhanced Buoyancy and Propulsion in 3d Printed Swimming Micro-Robots based on a Hydrophobic Nano Fibrillated Cellulose Aerogel and Porous Lead-Free Piezoelectric Ceramics

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SSRN 2024年

作者： Wang, Qingping Li, Zihe Bowen, Chris Courtney, Charles Pan, Min Xu, Qianqian Chen, Wenshuai Fieldhouse, Sebastian Wan, Chaoying Department of Physics & Mechanical and Electronic Engineering Hubei University of Education Wuhan430205 China Centre for Integrated Materials Processes and Structures Department of Mechanical Engineering University of Bath BathBA2 7AY United Kingdom Key Laboratory of Bio-based Material Science and Technology of Ministry of Education Northeast Forestry University Harbin China WMG University of Warwick CoventryCV4 7AL United Kingdom

This paper demonstrates the additive manufacture of swimming micro-robots which combine a hydrophobic nanofibrillated cellulose aerogel with a low acoustic impedance porous piezoelectric ceramic to provide long-term buoyancy and improved propulsion. The hydrophobic nanocellulose aerogel is shown to exhibit a high and stable contact angle that was maintained for extended periods of time, which facilitates long-term and stable buoyancy of the micro-robot. To quantify the benefits of introducing porosity into the active piezoelectric element, a new analysis model was developed to inform material design and maximize the propulsion force. Detailed characterisation and modelling of the swimming robots demonstrated that a swimming robot based on a lead-free porous Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) ceramic exhibited a higher acoustic radiation propulsion force and faster swimming speed compared to a robot fabricated using a dense ceramic element. These benefits were associated with the lower elastic modulus, density and acoustic impedance of the porous material. The lower permittivity, reduced device capacitance, and lower resonant frequency of the porous piezoelectric element also significantly reduced the driving current and power requirements of the robot. This work therefore provides new insights on the impact of acoustically matched piezoelectric materials on the performance of swimming micro-robots and successfully demonstrates the use of porosity to improve acoustic impedance matching of resonant piezoelectric devices, such as micro-robots and ultrasonic transducers. © 2024, The Authors. All rights reserved.

关键词： Aerogels

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Hydrogen-Transfer Reductive Catalytic Fractionation of Lignocellulose: High Monomeric Yield with Switchable Selectivity

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Angewandte Chemie 2023年第32期135卷

作者： Yilin Li Yanyan Yu Yuhan Lou Suqing Zeng Yaxu Sun Yongzhuang Liu Haipeng Yu Key Laboratory of Bio-based Material Science and Technology (Northeast Forestry University) Ministry of Education Harbin 150040 P. R. China

Lignin solubilization and in situ hydrogenolysis are crucial for reductive catalytic fractionation (RCF) of lignocellulose to aromatic monomers. In this study, we reported a typical hydrogen bond acceptor of choline chloride (ChCl) to tailor the hydrogen-donating environment of the Ru/C-catalyzed hydrogen-transfer RCF of lignocellulose. The ChCl-tailored hydrogen-transfer RCF of lignocellulose was conducted under mild temperature and low-pressure (<1 bar) conditions, which was applicable to other lignocellulosic biomass sources. We obtained an approximate theoretical yield of propylphenol monomer of 59.2 wt % and selectivity of 97.3 % using an optimal content of ChCl (10 wt %) in ethylene glycol at 190 °C for 8 h. When the content of ChCl in ethylene glycol was increased to 110 wt %, the selectivity of propylphenol switched toward propylenephenol (yield of 36.2 wt % and selectivity of 87.6 %). The findings in this work provide valuable information for transforming lignin from lignocellulose into value-added products.

关键词： Aromatic Monomer biomass Refinery Hydrogen Transfer Lignin Reductive Catalytic Fractionation

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