ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Mingqiang Chen,Zhiwei Yang,Haosheng Xin,Yishuang Wang,Defang Liang,Chang Li
As a major constituent of renewable biomass, conversion of cellulose to high-value chemicals presents a promising strategy. Herein, we designed a multifunctional Ni@C/WOx catalyst for direct cellulose conversion to ethylene glycol. This catalyst exhibited excellent stability while achieving a high ethylene glycol yield (69.4%). Graphene-encapsulated metal Ni stabilized hydrogenation activity and minimized metal leaching. The interaction between Ni@C and WOx facilitated the reduction of WOx and increased the formation of W5+ species. Characterization by electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS), NH3-TPD, and Py-IR confirmed that W5+ formation induces oxygen vacancies and acid sites on the catalyst support surface. At 30% Ni loading, strong metal–support interactions maximized the W5+ concentration and oxygen vacancy, enhancing the C–C bond cleavage efficiency. Consequently, the synergistic effect between Ni@C and WOx effectively facilitates key steps in cellulose conversion to ethylene glycol: cellulose hydrolysis, glucose retro-aldol condensation, and glycolaldehyde hydrogenation. The understanding of these structure–performance relationships has provided new ideas for the green and sustainable production of high-value-added chemicals from cellulose.
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DOI
高影响因子
COLLOID AND POLYMER SCIENCE
·
2014
·Vol. 292
·期 9
·2071-2082
·
IF 2.41
Fu Yutong,Xia Xinyu,Zhang Yan,Ye Jinhai,Lang Meidong
Functional star-shaped 4-arm poly(ethylene glycol)- b -poly[( ε -caprolactone- co - γ -amino- ε -caprolactone)] (4-arm PEG- b -P(CL- co -ACL) was synthesized through ring-opening polymerization. The structure of the copolymer was confirmed by 1 H NMR, Fourier transform infrared spectroscopy (FTIR), and gel permeation chromatography (GPC). To further understand the copolymers, the difference of the conversion rate between ε -caprolactone (CL) and γ -(carbamic acid benzyl ester)- ε -caprolactone (CABCL) and the detailed deprotection condition were studied. The thermal property of the copolymer was analyzed by WAXR and differential scanning calorimetry (DSC), which demonstrated that the thermal property could be well adjusted. The pH-responsive behavior of the copolymers was studied in detail by dynamic light scattering (DLS), pH titration, and pyrene fluorescence methods, which indicated that it could form micelles and exhibit pH responsibility. Moreover, the copolymer was nontoxic and had good biocompatibility according to the results by 3-(4,5)-dimethylthiahiazo (-z-y1)-3,5-di-phenytetrazoliumromide (MTT) assay.
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高影响因子
ChemElectroChem
·
2017
·Vol. 5
·期 2
·328-334
·
IF 4.136
Sijian Li,Zhengxi Zhang,Kaihua Yang,Li Yang
A new family of composite polymer electrolytes (CPEs) is developed by blending pyrrolidinium-based polymeric ionic liquid [P(DADMA)TFSI], poly(ethylene glycol) [PEG800], and lithium bis(trifluoromethanesulfonyl) imide (LiTFSI). The structure, thermal behavior, electrochemical properties of these CPEs, as well as their potential application in high-temperature lithium-ion batteries (LIBs) are studied. The FTIR result reveals the interactions among P(DADMA)TFSI, PEG800, and Li + cations. X-ray diffraction and differential scanning calorimetry measurements show that the as-prepared CPEs have amorphous structures. Furthermore, CPEs exhibit satisfactory ionic conductivity, as well as high thermal and electrochemical stabilities. In addition, Li/LiFePO 4 cells with the as-prepared CPE at 0.2C rate can achieve a discharge capacity of about 150 mA h g −1 at 80 o C, with good capacity retention. These findings indicate that the as-obtained CPEs have great potential for applications as safe electrolytes in high-temperature LIBs. Graphical PEG power : Polymeric ionic liquid-poly-(ethylene glycol) composite electrolytes show good ionic conductivity, high thermal and electrochemical stabilities, and allow successful battery operation at high temperature.
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高影响因子
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2015
·Vol. 31
·期 4
·651-657
·
IF 0.875
Xiao Yanlong,Zhao Lei,Shi Yongfeng,Liu Ning,Liu Yongli,Liu Bin,Xu Qinghua,He Chaoliang,Chen Xuesi
Percutaneous coronary intervention(PCI) has become an important method for the treatment of the patients with coronary heart disease; however, problems, such as vascular endothelial inflammation, late thrombosis, and stent restenosis still exist as a result of poor biocompatibility of the materials. To enhance the biocompatibility, methoxy poly(ethylene glycol)(mPEG) was immobilized on the surface of AISI 316 grade stainless steel(SS)(AISI: American Iron and Steel Institute). First, silanized mPEG was synthesized by the direct coupling of mPEG with 3-isocyanatopropyltriethoxysilane(IPTS) via urethane bonds, and the silanized mPEG was then grafted on the surface of SS that was hydroxylated with piranha solution. The results obtained from contact angle goniometry, X-ray photoelectron spectroscopy(XPS), and atomic force microscopy(AFM) confirm that the mPEG modified steel contained more C and Si and less Fe and Cr on its surface, exhibiting a morphological change and decrease in the contact angle. The biocompatibility of the mPEG modified SS was evaluated with fibrinogen adsorption, platelet activation and adhesion, and human umbilical vein endothelial cell(HUVEC) adhesion. Fibrinogen adsorption, platelet activation, and adhesion were clearly suppressed on the surface-modified steel. In addition, human umbilical vein endothelial cell(HUVEC) could adhere and proliferate on the surface of the mPEG-modified SS. This study indicates that the modification of 316L SS with mPEG could enhance the biocompatibility and provide a primary experimental foundation for the development of next-generation coronary stent materials for clinical application.
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高影响因子
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
·
2026
·
IF 4
Yongsen Han,Jialiang Song,Yongjun Li,Wenmin Guo,Haoran Wang
The organic electric-field regulator enables the polymer to have nonlinear conductivity and to self-regulate electric field. However, it may migrate out from the polymer matrix due to its small molecular weight, causing nonreversible damage to the electrical performance of the composite. In this work, to improve the long-term stability, the allyloxy polyethylene glycol (APEG) with electron-donating groups was grafted onto the low-density polyethylene (LDPE) chains by chemical grafting method. The composites were mainly characterized by weight loss rate, breakdown strength, conductivity, space charge distribution, and surface potential decay. In addition, the quantum chemical calculations were carried out on APEG and grafting APEG/LDPE composites. The results show that grafting APEG on LDPE macromolecules not only improves the long-term stability but also enhances the nonlinear conductivity, which is attributed to the increase in the electrostatic potential of electron-donating groups of APEG. The nonlinear conductivity helps homogenize the electric field distribution in polymer composites and helps dissipate the surface charges. This work lays a foundation for the improvement of all-organic nonlinear dielectrics. Highlights Grafting APEG onto LDPE macromolecules improves the stability. Grafting APEG reduces conductivity of LDPE under low electric field. Grafting APEG helps enhance the nonlinear conductivity. Grafting APEG enables LDPE to have a more uniform electric field.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Li Xiao-Qiang,Duan Guo-Yi,Pan Yue,Fang Jian,Li Ruo-Lan,Xu Bao-Hua
The in-situ reconstruction of catalysts has increasingly garnered research interest due to its pivotal role in modulating selectivity and improving activity. The surface reconstruction of group IVA element-based compounds under reaction conditions has been rarely investigated, despite wide application as active sites or carriers in catalyst fabrication. In this work, the heavy-period element in group IVA exhibits high activity in the electrocatalytic reduction of formaldehyde (HCHO) with H 2 O, which is attributed to the accelerated proton-coupled electron transfer by strong HCHO adsorption. Remarkably, the proper reconstruction of metallic Si to Si-OH during the electrolysis accounts for the active surface, enabling a highly selective formation of ethylene glycol (EG). Competitive long-term stability (1500 h) is demonstrated at –200 mA cm –2 with a low-resistance Si sheet as the cathode, which highlights the industrialization prospects of this alternative route for EG production.
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高影响因子
POLYMER BULLETIN
·
2026
·Vol. 83
·期 8
·423
·
IF 4.2
Zhu Xiaoji,Hou Haohao,Wang Jie,Ma Hui,Zhou Hongfu,Zang Xiaoling,Xiang Aimin
The urgent necessity to create affordable adsorbents for the effective elimination of leftover contaminants from wastewater arises from the significant water pollution resulting from the excessive use of dyes. A novel chitosan (CS) /pullulan (PL) hydrogel, chemically cross-linked using polyethylene glycol diglycidyl ether (PEGDE), exhibited high swelling capacity, excellent mechanical stability, and superior adsorption performance. Adsorption tests indicated that CS/PL-2 hydrogel attained a 93.23% removal efficiency for congo red (CR) dye at the concentration of 1000 mg/L. The adsorption capacity of CS/PL-2 hydrogel was investigated in relation to various factors, such as temperature, initial concentration, pH, contact time, and the quantity of adsorbent used. Adsorption kinetics for CS/PL-2 hydrogel were examined utilizing both pseudo-first-order and pseudo-second-order models, with the findings demonstrating that physical adsorption primarily governed the process. The maximum adsorption capacity identified for CS/PL-2 hydrogel, as the Langmuir model, was observed to be 953.60 mg/g, and the thermodynamic analysis of adsorption suggested that the process occurs spontaneously. After five cycles of adsorption, the removal rate of CS/PL-2 hydrogel remained at 70%. In conclusion, this hydrogel adsorbent offers a practical solution for treating CR contaminated wastewater.
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高影响因子
JOURNAL OF SOLUTION CHEMISTRY
·
2025
·Vol. 55
·期 3
·455-480
·
IF 1.3
Wang Yuting,Wang Min,Fu Xupeng,Wang Wenxue,Chai Liming,Wang Enna,Wei Xionghui,Wu Zhaojun,Zhang Jianbin
The impact of water on the physicochemical properties and CO 2 absorption capability of the N -methyldiethanolamine (MDEA) + polyethylene glycol 300 (PEG300) solution was explored. The molar ratio of PEG300 to MDEA was fixed at 0.3734: 0.6266, and the density and viscosity of the aqueous solutions were measured at P = 100.5 kPa and T = (298.15–318.15) K. Based on these measurements, the excess properties of the system were calculated. Meanwhile, spectral analysis confirmed the formation of intermolecular hydrogen bonds among MDEA, PEG300, and H₂O. Building on these findings, the influence of water content on the cyclic CO 2 absorption performance of the H₂O + (PEG300 + MDEA) system was systematically investigated, with particular emphasis on the regeneration behavior at 15 wt% MDEA concentration. Furthermore, the underlying mechanism of the cyclic CO₂ absorption process was elucidated using multiple analytical techniques. These insights provide certain theoretical support for the industrial application of PEG300 + MDEA aqueous systems in CO 2 capture.
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高影响因子
IEEE SENSORS JOURNAL
·
2026
·
IF 4.5
Feiyan Pan,Keqi Wu,Shuo Wang,Ke Tang,Xuewei Zhu,Xiaofeng Wei
Hollow nanostructured materials possess a large specific surface area and excellent adsorptive properties, rendering them highly attractive for gas-sensing applications. In this work, a porous core-shell CeO2 architecture was synthesized via a hydrothermal route and subsequently functionalized with polyethyleneimine/polyethylene glycol (PEI/PEG) to yield PEI/PEG/CeO2 composites for room-temperature CO2 detection. Scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) surface-area analyses confirmed the high specific surface area and the formation of the porous core-shell CeO2 morphology, while SEM coupled with energy-dispersive X-ray spectroscopy (EDS) verified successful immobilization of PEI/PEG on the CeO2 surface. Gas-sensing tests demonstrated that the PEI/PEG/CeO2 sensor achieved a detection limit as low as 200 ppm CO2; at 1500 ppm CO2, the sensor exhibited a frequency shift of 86 Hz and rapid response/recovery times of 22 s and 70 s, respectively. Furthermore, the sensor showed high sensitivity,excellent repeatability and strong resistance to humidity. The outstanding CO2-sensing performance is attributed to the synergistic effects of the porous core-shell structure, the selective recognition afforded by the amine functional groups, and the formation of n-n heterojunctions at the CeO2-PEI interface. These findings provide deeper insight into the gas-sensing mechanisms and performance characteristics of PEI/PEG-functionalized CeO2 composites.
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高影响因子
ACS Nano
·
2026
·
IF 17.3
Yaming Liu,Zhenle Hu,Xinrui Zhu,Xinyu Li,Tong Zuo,Yutian Zhao,Guoqiang Liu,Yanting Cheng,Chao Zhi,Jiaguang Meng,Xiang Li,Jingnan Wang,Mingshang Jin
While traditional Pt-based catalysts suffer from inadequate selectivity and stability in electrocatalytic ethylene glycol oxidation reactions, we present a general and scalable synthesis strategy, fabricating a broad multimetallic Pt-based alloy nanowires (NWs) library from binary to quinary. Among these, the PtAgCuRhRu NWs exhibit exceptional performance, with a mass activity ∼8 times higher than that of Pt/C and a Faradaic efficiency for glycolic acid (GA) reaching 93.49%. In the membrane electrode assembly electrolyzer, the catalyst maintained its activity over 140 h with 99% GA selectivity. In situ experimental and theoretical calculations reveal oxygenophilic Rh and Ru promote *OH adsorption, facilitating the conversion of *COCH2OH to GA and the oxidative removal of COads, enhancing activity and stability. Additionally, the high energy barrier for C–C bond cleavage suppresses undesired decomposition due to the introduction of Ag and Cu, leading to superior GA selectivity.
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DOI
高影响因子
Polymers
·
2026
·Vol. 18
·期 4
·489
·
IF 5.8
Yiming Wang,Hailing Liu,Yu-Peng He,Guoqing Guan
A bisphenol-A-free lignin hydrogel platform with programmable network density is reported. Lignin was crosslinked with poly(ethylene glycol) diglycidyl ether (PEGDGE) and sorbitol polyglycidyl ether (SPE) via epoxide ring-opening to generate hydrogel networks spanning eleven PEGDGE/SPE ratios. A single compositional lever—the SPE fraction—allowed the predictable densification of the network, translating into a monotonic shift in swelling and viscoelastic/mechanical responses. Importantly, the well-performing hydrogel (LS 1 P 9 ) coupled swelling ratio with adsorption functionality, removing 72% methylene blue from water under the tested conditions. This work positions lignin as more than a passive filler: it serves as an active phenolic macromonomer for designing sustainable, multifunctional hydrogels.
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DOI
PubMed
高影响因子
Biochar
·
2026
·Vol. 8
·期 1
·110
·
IF 15.1
Gong Yichen,Liang Cong,Sun Qihua,Hu Ping,Li Yan,Cheng Junxi,Liu Chang,Gao Bing,Zhuo Hua,Wu Zhaofeng
This study presents a hydrolysis time-mediated strategy for engineering the pore and defect structure of biochar derived from lavender straw nanocellulose. The biochar obtained at the optimal hydrolysis duration of 3 h (CLN-3) exhibits a developed mesoporous network (46.36 m 2 g −1 ) and abundant oxygen vacancies, leading to exceptional ethylene glycol (EG) sensing performance at room temperature: a high response of 17,576.67%, a low detection limit of 0.36 ppm, and stable operation over 40 days. Density functional theory (DFT) calculations reveal that calcium doping enhances the adsorption energy of EG from − 0.13674 eV to − 0.39508 eV, facilitating interfacial charge transfer. This work provides a green and controllable route to transform agricultural waste into high-performance sensing materials. Graphical The alternative text for this image may have been generated using AI.
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高影响因子
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