INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2023
·
IF 8.2
Yueqin Li,Chen Chen,Lin Han,Zichun Lu,Ning Zhang,Runtian Miao
Conducting polymer hydrogels are typically employed in all-gel supercapacitors; however, Poly[3,4-ethylene-dioxythiophene] (PEDOT)-based hydrogel supercapacitors still suffer from low capacitance because of the low packing density of PEDOT in the electrodes. Here, we demonstrate lignosulfonate sodium (LS) as an excellent template to synthesize various LS-PEDOT conductive nanofillers for high mass-loading LS-PEDOT/PAAM hydrogel electrodes. Then, the optimum LS-PEDOT/PAAM electrode was assembled with a redox-active LS/PAAM/Fe 3+ hydrogel electrolyte to form sandwich-structured all-gel supercapacitors, which could deliver a high specific capacitance of 672.5 mF/cm 2 and an energy efficiency of 60 μWh/cm 2 , which are three times higher than the 220 mF/cm 2 and 19.5 μWh/cm 2 of the device without Fe 3+ at the same condition. Such a device shows excellent temperature tolerance from −30 to 100 °C. Besides, the LS-PEDOT/PAAM electrode has excellent photothermal conversion effects under simulated solar illumination. The sluggish electrochemical performance of the SC under low temperatures could be significantly boosted by ~50 % under simulated solar light. All of these findings demonstrate that the capacitance performance of the PEDOT-based hydrogel device is successfully improved not only at room temperature but also under subzero conditions.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Xiaoguang Qiao,Yuhan Zhang,Linan Wang,Shuzhen Zhou,Xinchang Pang
The combination of biomass and liquid metal (LM) makes the preparation process “greener” and application of LM composite materials more sustainable. Here we reported the solvent free preparation of lignosulfonate (LS) stabilized eutectic gallium/indium (EGaIn) LM nanodroplets through ball milling (BM), which was recognized to be efficient and environmentally-friendly alternatives to solution-based methods. By regulating the BM frequency and milling time, uniform LM nanodroplets with a size <200 nm can be achieved. Moreover, the surface of the EGaIn nanodroplets was covered by LS molecules, owing to the hydrogen bond formed between Ga 2 O 3 and LS. Hydrophilic LS shell endowed the LS@EGaIn nanodroplets excellent colloidal stability in the aqueous media. The elongation at break and fracture strength of hydrogel with the addition of LS@EGaIn significantly improved with the addition of LS@EGaIn. Besides, the conductivity and excellent stress responsibility of the LS@EGaIn composite hydrogel illustrated its potential application as s a stress sensor, flexible wearable devices and other related applications. Moreover, it was predicted that LS can be replaced by other synthesized or biological macromolecules , and induced the formation of types of LM based composite materials through such a simple method.
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COLLOIDS AND SURFACES B-BIOINTERFACES
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2021
·
IF 5.268
Da-xia Zhang,Rui Wang,Haichao Cao,Jian Luo,Tong-fang Jing,Bei-xing Li,Wei Mu,Feng Liu,Youming Hou
To reduce the negative impact of nanopesticide carriers of on the environment, a greener nanodelivery system is necessary. Nanogels are nontoxic and degradable carriers, however, the potential of nanogels for delivering pesticides has not been proven. In this study, poly(vinyl alcohol)-valine, an ecofriendly polymer, was synthesized and used to fabricate emamectin benzoate nanogel suspension (EB NS). The nanoformulation showed favorable stability at low temperature, high temperature or one year storage, and in water with different hardnesses. The retention of the EB NS solution on leaves was higher than that of an EB emulsifiable concentrate (EC) by approximately 9% at a concentration of 10 mg L −1 . The half-life of EB nanogels under Ultra Violet irradiation was prolonged by 3.3-fold. Moreover, the bioactivity of the EB NS against Plutella xylostella was higher than that of the EB EC. These advantages resulted in a relatively long duration of pest control. The response of nanogels to laccase , a digestive enzyme in the digestive tract of lepidopteran pests, enables pesticide release on demand. Nanogels have the advantages of being ecofriendly carriers, exhibiting higher utilization, and prolonged pest control periods, and they have a brilliant future in pesticide delivery.
研究领域:
农业科学
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纳米技术
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环境科学
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农药化学
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CATALYSIS COMMUNICATIONS
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2016
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IF 3.389
Dawei Chen,Fengbing Liang,Dexin Feng,Fanglin Du,Guang Zhao,Huizhou Liu,Mo Xian
Bifunctional lignosulfonate-based catalysts (LS-M) with Lewis acid and basic sites were designed and prepared by immobilizing metal ions on lignosulfonate. Catalysts were characterized by XRD, XPS, SEM, EDX, TEM, TGA, NH 3 /CO 2 -TPD and FTIR, and applied in transformation of carbohydrate biomass to furan derivatives (HMF/furfural) in mixed water/THF systems. With LS-Cr as catalyst, the optimized yields of HMF from cellulose, glucose and mannose were 46.3%, 60.4% and 68.8%, and that of furfural from xylan, xylose and arabinose were 40.2%, 73.1% and 51.6%, respectively. The catalysts could be easily recycled with negligible wastage of the active metal ions.
研究领域:
化学工程
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可再生资源利用
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
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IF 9.2
Rongping Chen,Xiaolong Jin,Dongyi Han,Liu Yang,Jiacheng Wu,Quan Wang,Lei Yu
Traditional biochar production via high-temperature thermochemical processes is energy-intensive and often destroys redox-active functional groups critical for microbe–material interactions. Here, a lignin-derived biochar (LSB) was prepared via low-temperature pyrolysis (250 °C) to preserve its redox functionality. The addition of LSB enhanced biohydrogen production by 16.2% and improved xylose utilization from 68.62% to 76.95%. Mechanistic investigations revealed that LSB stimulated the secretion of humic-like substances in extracellular polymeric substances (EPS) and functioned as an effective electron shuttle, thereby promoting extracellular electron transfer (EET). Correspondingly, intracellular NADH concentration and the NADH/NAD + ratio increased by 52.99% and 44.97%, respectively. Electron balance analysis further demonstrated a metabolic shift toward acetate and hydrogen production, with their electron equivalent fractions increasing to 9.7% and 9.5%, respectively. These results highlight a low-temperature lignin valorization strategy for regulating microbial electron flux, offering a sustainable approach to enhance biohydrogen production.
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ACS Applied Nano Materials
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2026
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IF 5.8
Yinjie Peng,Changning Hu,Jie He,Zhaowen Yang,Min Zhang
Multifunctional flexible triboelectric nanogenerator (TENG) offer an ideal solution for addressing the energy demands of wearable electronics. However, it remains challenging to develop flexible TENG electrode materials that simultaneously exhibit excellent flexibility and high electrical conductivity. In this work, a tough and highly conductive hydrogel (PAM/LS@PEDOT) was developed by hydrophobically associating polyacrylamide (PAM) chains using sodium dodecyl sulfate (SDS) and lauryl methacrylate (LMA), together with uniformly dispersed lignosulfonate-modified poly(3,4-ethylenedioxythiophene) (LS@PEDOT) conductive fillers. The PAM/LS@PEDOT hydrogel exhibits an outstanding tensile strength of 818 kPa and a large fracture strain of 1541%, along with remarkable fatigue resistance and efficient energy dissipation under cyclic deformation. Owing to the continuous conductive pathways formed by well-dispersed LS@PEDOT, the hydrogel achieves a conductivity of 0.82 S m–1. When used as a flexible electrode in a triboelectric nanogenerator, the assembled TENG delivers an open-circuit voltage of 85 V and a maximum power density of 210.6 mW m–2. Moreover, it can power small electronic devices and enable self-powered information transmission and sensing. This work provides a valuable reference for hydrogel-based TENG in biomechanical energy harvesting and self-powered wearable electronics.
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JOURNAL OF POWER SOURCES
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2025
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IF 7.9
Kuo Li,Wenbin Luo,Tu Ran,Shuhao Ruan,Yi Cheng,Haisong Wang
It is believed that slow Li + desolvation on the surface and sluggish Li + transfer in the bulk is responsible for the relatively poor high-rate and low-temperature performance of graphite anode. In this work, we design carbon composites with LiF-rich solid electrolyte interface (SEI) by one-step process using the sodium lignosulfonate (LS) as the bifunctional agents. The polar functional groups on LS could promote the formation of SEI rich in LiF, which can facilitate Li + desolvation and reduce the energy barrier for Li + transfer. Meanwhile, the S elements in LS can be dopped into the carbon, which could regulate the interlamellar structure of carbon, furth promoting the Li + transfer in the bulk of carbon composites. As a result, the designed carbon anode exhibits impressive specific capacity of 1047 mAh g −1 under 100 mA g −1 at the room temperature. Even at low temperatures, it still displays 437 mAh g −1 at 0 °C and 300 mAh g −1 at −10 °C under 100 mA g −1 , which is far better than the graphite anode. This work puts forward an effective and green strategy to design the carbon anode with LiF-rich SEI and rapid Li + transfer for LIBs with high capacity and excellent wide-temperature performance.
研究领域:
材料科学
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电化学
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CHROMATOGRAPHIA
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2019
·Vol. 83
·期 1
·87-93
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IF 1.552
Cui Peng,Fang Hong-Xia,Qian Chen,Cheng Man-Huan
In this study, based on depolymerization solution of commercially available sodium lignosulfonate under mild conditions, an efficient method for the chromatographic separation of lignosulfonate depolymerization products was firstly established. The self-built database contains 18 lignin-based standards and the information on their names, formulas, structures, retention times, fragments, and corresponding MS E data was developed. By searching the online spectral data in a novel informatics database, a total of nine aromatic lignin depolymerization products were identified automatically. Thus, a fast standard protocol for detection and identification of real lignin degradation products was preliminary built.
研究领域:
分析化学
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林产化学
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环境科学
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Chao Su,Jinpeng Cai,Hao Lai,Qifang Zheng,Peilun Shen,Dianwen Liu
Chalcopyrite and galena are significant sulfide minerals found in copper-lead (Cu-Pb) ores, drawing attention to environmentally friendly separation techniques in mineral processing . This research explored the use of calcium lignosulfonate (CLS) as a depressant to achieve efficient separation of chalcopyrite from galena under weakly alkaline conditions (pH=8–10). The adsorption behavior of CLS was analyzed using Fourier transform infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV–vis), zeta potential measurements, and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The findings revealed that CLS selectively adsorbed onto the galena surface, inhibiting the interaction between xanthate and galena. Furthermore, the results of X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations indicated that CLS chemisorbed onto the galena surface through bonding between oxygen atoms in the sulfonic acid group and lead atoms, and the process occurred spontaneously. This selective adsorption significantly increased the hydrophobicity of the galena surface, enabling chromium-free separation of chalcopyrite and galena.
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Materials Today Communications
·
2025
·
IF 4.5
Xia Wang,Rui Sun,Guiming Xie,Zhengguang Pan,Xianhong Gong,Bo Cui,Haowen Luo
Multi-heteroatom co-doped carbon aerogels featuring abundant micro/mesoporous structures are highly used as electrode materials for supercapacitors, showing excellent specific capacitance and cycle stability. In this study, the hierarchical porous carbon aerogel (BHPC-4) co-doped with heteroatoms containing nitrogen (3.23 atom%), oxygen (12.17 atom%), boron (10.09 atom%) and sulfur (0.74 atom%) was prepared with sodium lignosulfonate and sodium alginate as carbon precursors and ammonium pentaborate as boron source and activator. The material demonstrates an impressive specific capacitance of 381.0 F·g −1 at 1 A·g −1 in a three-electrode system with an electrolyte of 6 M KOH. In a symmetric supercapacitor, it has a high capacitance retention rate of 95.9 % and a coulomb efficiency of 97.2 % after 10,000 cycles at 5 A·g −1 . Remarkably, the symmetric supercapacitor achieves an energy of 15.1 Wh·kg −1 at 72.0 W·kg −1 . The study presents a novel approach to efficient use of renewable biomass to produce nitrogen, oxygen, boron and sulfur multi-heteroatom doped carbon aerogels for supercapacitors.
研究领域:
材料科学
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储能
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电化学
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纳米技术
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高分子科学
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COLLOID AND POLYMER SCIENCE
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2025
·
IF 2.3
Yang Jing,Wang Xin,Xiang Xu
This work reports on a highly sensitive and temperature-adaptive gellan gum/sodium lignosulfonate-modified hydrogel (PGL hydrogel) aimed at developing materials suitable for wearable sensors. By introducing gellan gum into the polyacrylamide (PAM) matrix, an interpenetrating network structure was formed, significantly enhancing the mechanical properties of the hydrogel. Subsequent post-treatment with a sodium lignosulfonate solution further improved the conductivity of the hydrogel to 0.48 S/m. As the core functional material for wearable sensors, this hydrogel exhibits a wide strain detection capability of approximately 400%, with a gauge factor ( GF ) of 3.79 in the 0–200% strain range and 5.16 in the 200–400% range. Notably, the material maintains synergistic stability in mechanical properties, conductivity, sensitivity, and response time across a wide temperature range of –20–60 ℃. It provides robust support for its use as a stable and sensitive strain sensor. Graphical
研究领域:
材料科学
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高分子科学
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传感器技术
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生物医学工程
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-13
·
IF 15.7
Gu Yihui,Xu Chao,Wang Yilin,Luo Jing,Shi Dongsheng,Wu Wenjuan,Chen Lu,Jin Yongcan,Jiang Bo,Chen Chaoji
Achieving a synergy of biocompatibility and extreme environmental adaptability with excellent mechanical property remains challenging in the development of synthetic materials. Herein, a “bottom-up” solution-interface-induced self-assembly strategy is adopted to develop a compressible, anti-fatigue, extreme environment adaptable, biocompatible, and recyclable organohydrogel composed of chitosan-lignosulfonate-gelatin by constructing noncovalent bonded conjoined network. The ethylene glycol/water solvent induced lignosulfonate nanoparticles function as bridge in chitosan/gelation network, forming multiple interfacial interactions that can effectively dissipate energy. The organohydrogel exhibits high compressive strength (54 MPa) and toughness (3.54 MJ/m 3 ), 100 and 70 times higher than those of pure chitosan/gelatin hydrogel, meanwhile, excellent self-recovery and fatigue resistance properties. Even when subjected to severe compression up to a strain of 0.5 for 500,000 cycles, the organohydrogel still remains intact. This organohydrogel also demonstrates notable biocompatibility both in vivo and vitro, environment adaptability at low temperature, as well as recyclability. Such all natural organohydrogel provides a promising route towards the development of high-performance load-bearing materials.
研究领域:
材料科学
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生物医学工程
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化学工程
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