CATALYSIS TODAY
·
2025
·
IF 5.3
Yan Fang,Chengcheng Cai,Hiromi Yamashita,Xufang Qian,Yixin Zhao
Electrocatalytic CO 2 reduction reaction (CRR) to produce value-added chemicals offers a sustainable strategy to address energy crisis and climate change. However, the conventional CRR is always coupled with the anodic oxygen evolution reaction (OER), suffering from large overpotential, and high energy consumption. To overcome this, we proposed an alternative system by pairing CRR with the electrocatalytic oxidation of ethylene glycol (EGOR), a product derived from the depolymerization of polyethylene terephthalate (PET) plastic waste. This novel coupled system enabled the simultaneous production of formate on both electrodes, achieving the dual utilization of plastic waste and CO 2 . In this study, we developed a commercially viable system combining a robust NiOOH electrocatalyst synthesized through a facile electrodeposition for EGOR with a low-cost Bi 2 O 3 electrocatalyst for CRR. The NiOOH electrocatalyst achieved Faradaic efficiencies over 88 % for EG oxidation into formate within a broad potential window (1.4–1.8 V RHE ), while Bi 2 O 3 delivered Faradaic efficiencies more than 90 % for CO 2 -to-formate conversion within −0.8 to −1.2 V RHE . When integrated in a two-electrode configuration, the EGOR/CRR system produced formate at both electrodes with Faradaic efficiencies above 85 % across a wide cell voltage (2.0–2.6 V), requiring a ∼300 mV lower cell potential compared to the OER/CRR system. This coupled system reached commercial-level current densities above 200 mA cm −2 or 400 mA cm −2 at 3.0 V when implemented in the flow cell or the MEA cell, respectively. These results demonstrated the potential to use waste-derived reactants and commercially accessible eletrocatalytsts to realize energy-efficient and scalable conversion into formate.
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Advanced Powder Materials
·
2025
·
IF 24.9
Yang Li,Bin Sun,Ying Li,Chong Zhang,Pu-Jun Jin,Xin Wang,Bao Yu Xia,Yu Chen,Xuan Ai
The large-scale implementation of direct ethylene glycol fuel cells (DEGFCs) relies on the design of catalysts that possess exceptional activity, durability, and efficient C–C bond breaking ability. However, Pt and Pd-based nanomaterials continue to face challenges of low selectivity and slow reaction kinetics in driving the complete oxidation of ethylene glycol to CO 2 . In this work, a facile one-pot reduction method is reported for controllable synthesis of PtBi nanodendrites (PtBi-NDs) composed of ultrathin bimetallene subunits. In alkaline media, the composition optimized PtBi-NDs demonstrate outstanding activity and strong resistance to CO poisoning during the ethylene glycol oxidation reaction (EGOR). The PtBi-NDs show 5.8-fold higher mass activity, enhanced stability, and superior C1 selectivity relative to commercial Pt nanoparticles (Pt c-NCs). Most strikingly, PtBi-NDs deliver a higher power density (8.3 mW cm –2 ) than Pt c-NCs in DEGFCs. The theoretical analysis and experimental measurements explain that the introduction of Bi element into Pt induces d–p orbital hybridization and promotes electron transfer from Bi to Pt, thereby facilitating C–C bond cleavage and boosting EGOR kinetics. This work establishes an effective strategy for constructing Pt-based ultrathin bimetallenes and offers fundamental insights into boosting EGOR performance via d-p orbital hybridization.
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POLYMER BULLETIN
·
2014
·Vol. 71
·期 5
·1173-1195
·
IF 1.491
Ren Hui-xue,Ying Han-jie,Sun You-min,Wu Dao-ji,Ma Yong-shan,Wei Xiao-feng
Poly(lactic acid)–poly(ethylene glycol) copolymers were synthesized under the catalysis of multi-SO 3 H-functionalized ionic liquid. Compared to the ordinary ionic liquids and the traditional Lewis acid catalysts, the ionic liquids with multi-sulfonic acid groups were more catalytically active, and the reaction conversion rate reached up to 97.8 %. The molecular weight of the resulting copolymer was 5.69 × 10 4 g mol −1 and the degree of crystallinity was 42.9 %. The copolymers were also of higher hydrophilicity and better mechanical properties. The reaction kinetics of copolymerization was analyzed. The intrinsically high catalytic activity of multi-SO 3 H groups originated from the lower activation energy and the higher free acidity. The recovering catalytic activity of the multi-SO 3 H ionic liquid catalyst was higher, suggesting that it is a recyclable, environmentally friendly catalyst.
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KEY ENGINEERING MATERIALS
·
2015
·
IF 0
Jie An,Yang Yi Chen,Lei Mi,Ji Ping Wang,Qi Zhong
Thermo-responsive random copolymer poly (2-(2-methoxyethoxy) ethoxyethyl methacrylate-co-ethylene glycol methacrylate) P(MEO2MA-co-EGMA) was investigated in thin film. By spin-coating, the obtained film thickness varied from 9 nm to 97 nm, which shows a linear relationship with tetrahydrofuran solution concentration. The swelling and transition behavior of P(MEO2MA-co-EGMA) films were monitored by white-light interferometry under water vapor atmosphere. It is observed that the film rapidly swelled in the first 90 min. Afterwards it reached an equilibrium state. The film thickness did not show a prominent increase by further prolonging the swelling time. In addition, the swelling capability of P(MEO2MA-co-EGMA) films was related to the film thickness. The thicker film possessed less swelling capability. Unlike the transition behavior in aqueous solution, P(MEO2MA-co-EGMA) films showed a much broader transition region, which might be related to the influence of Si substrate.
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Wood Material Science & Engineering
·
2026
·
IF 1.9
Chen Chen,Yuhan Liu,Weiqi Leng,Wanzhao Li,Jiangtao Shi
Dimensional stabilized treated wood can preserve its natural properties and be used in some humid environments. It is necessary to develop an effective treatment method. This study reported a technique that gets refined internally and externally for improving wood dimensional stability. Herein, polyethylene glycol (PEG) impregnation was the ‘internal’ factor and propyltrimethoxysilane (PTMS) vapor deposition was the ‘external’ factor. Both were jointly applied to treat Liriodendron tulipifera wood. FTIR, XPS and XRD were used to analyze the chemical changes and indicated new bonds formed among PEG, PTMS and wood. Micromorphology of modified wood was observed by SEM. Weight percent gain after PEG and PTMS coating was about 77%. The water contact angle of combined modified wood was greater than 135°. Reduction of pores in modified wood is another reason for hydrophobicity. The additive effect of PEG and PTMS significantly reduced the water absorption of modified Liriodendron tulipifera wood, with the PTMS coating potentially mitigating the leaching of PEG, markedly reducing the dimensional changes of the wood. This demonstrates the wide applicability, durability, and dimensional stability of PEG/PTMS-modified wood.
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ANALYST
·
2026
·
IF 3.6
Jiarui Zhang,Hui Miao,Jiale Liu,Xinyue Zhou,Yue Deng,Shuang Feng,Yalin Xi,Meiyun Shi,Lei Yin
Accurate quantification of hydrophilic monodisperse polyethylene glycol (PEG) derivatives in complex biological matrices remains challenging due to substantial matrix interference and poor retention using conventional chromatographic systems.This study presents an environmentally sustainable analytical strategy based on ultraperformance convergence chromatography coupled with triple-stage mass spectrometry (UPC²-MS³) for the highly selective determination of HO-PEG₈-OH in MCF-7 cell lysates. By harnessing the orthogonal separation mechanism of supercritical CO₂ and the exceptional noise reduction capability of MS³ technology, the developed method achieves a rapid analysis time of 1.7 minutes while eliminating the need for extensive sample pretreatment. The sustainability and practical applicability of the platform were systematically evaluated using a triple-metric framework, yielding favorable scores for GEMAM (7.166), AGSA (72.22), and CACI (75). Application of this sensitive approach to intracellular pharmacokinetic studies revealed an extremely low internalization rate of 0.0355% following 48 h exposure. Compared to existing methodologies, the UPC²-MS³ strategy offers a more robust, selective, and eco-friendly tool for elucidating the biological fate of monodisperse polymers in cellular systems.
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PubMed
高影响因子
LANGMUIR
·
2026
·Vol. 42
·期 34
·25343-25359
·
IF 4.4
Shan Jingyu,Gao Luyao,Liu Shibo,He Hongxin,Dong Rui,Wen Ping,Fan Mingjin
Achieving high performance and multifunctionality at
minimal concentration
is a critical demand for water-based lubricant additives yet remains
challenging in harsh environments, which is closely regulated to molecular
configuration and interfacial behavior. Herein, three protic ionic
liquids (PILs) with tailored polar groups and steric hindrance were
designed as additives for water glycol base fluids. The significantly
enhanced corrosion resistance, adsorption, and lubricity can be obtained
with the specific structure-activity relationship, resulting from
the strong interaction between PIL molecules and metal sliding asperity.
For anions, linear short-chain alkoxy PIL delivers the fastest adsorption
and optimal friction reduction, while the highly branched alkyl phosphorus
PIL provides maximal steric hindrance, providing superior antiwear
performance. The moderately branched long-chain alkoxy PIL achieves
an optimal balance between rapid film formation and tribo-chemical
reactivity, endowing the highest load-bearing capacity under variable
loads. Beyond lubrication, all three PILs exhibit broad-spectrum antibacterial
activity (99.99% inhibition against both Escherichia coli and Staphylococcus aureus ). Collectively, this work elucidates the governing role of anion
architecture in determining the comprehensive performance of water-based
multifunctional lubricants, offering a theoretical foundation for
developing advanced water-based additives.
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PubMed
高影响因子
FLUID PHASE EQUILIBRIA
·
2023
·
IF 2.6
Xueqin Yang,Qiang Wang,Jing Li,Nuerbiya Yalikun,Liang Xu,Zhen Ding
The values of activity coefficient at infinite dilution ( γ 12 ∞ ) were reported for 27 solutes in tetraethylammonium chloride + ethylene glycol deep eutectic solvent (DES) system at a molar ratio of 1.000:1.997 by inverse gas chromatography (IGC) method at intervals of 10 K from 303.15 to 333.15 K. Then the measured γ 12 ∞ values were used to determine the thermodynamic functions ( Δ H 1 E , ∞ , Δ S 1 E , ∞ , and Δ G 1 E , ∞ ). The values of selectivity ( S i j ∞ ) and capacity ( k j ∞ ) for six extraction problems (that is, heptane/toluene, benzene/methanol, heptane/thiophene, acetone/ethanol, cyclohexane/benzene, and cyclohexane/ethanol.) were calculated from experimental γ 12 ∞ values and compared with literature values of other solvents under the same separation conditions. The results indicate that the studied DES is a potential extractant for separation of cyclohexane/ethanol and heptane/thiophene systems. The Flory-Huggins interaction parameters ( χ 12 ∞ ) were used to evaluate the miscibility between DES and organic probes, and the results reveal that alcohols exhibited the best solubility in tested DES. Furthermore, the Hildebrand solubility parameters ( δ 2 ) were calculated for tested DES, and the values of δ 2 decreased with the increase of temperature.
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PROGRESS IN ORGANIC COATINGS
·
2023
·
IF 6.6
Shaobin Wen,Yan Wang,Jingyu Zhang,Liyuan Fan,Qiang Zhang,Yufei Deng,Yangyang Xin,Yingquan Zou
Cationic photopolymerization is well-known for its tolerance with oxygen and low shrinkage of coating; however, its application for surface coating is limited due to the lack of functional oligomers . Herein, poly (ethylene glycol) (PEG) with terminal oxetane groups was prepared and used for the coating of membrane by rapid cationic photopolymerization. The structure and separation performance of membrane could be regulated by adjusting the molecular weight of PEG and the UV radiation time. The hydrophilicity and filtration performance of membrane has been significantly enhanced after cationic photopolymerization. Finally, the composite membrane showed excellent performance to dye/salt separation and superior chlorine resistance, with flux and retention remaining stable over a 14-day test.
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COLORATION TECHNOLOGY
·
2022
·Vol. 139
·期 1
·45-56
·
IF 2.049
Na-won Baek,Dan Wang,Xun Zhang,Jie Wang,Xue-rong Fan
Silk fabrics treated with gallic acid/pyrrole (PGA/PPy) complexes polymerised using horseradish peroxidase have higher electrochemical activity than silk fabrics dyed with gallic acid alone. However, the degree of polymerisation decreases. As a result, the ultraviolet (UV) protection and fastness of the silk fabric were lowered. To solve this problem, we studied the degree of polymerisation of the complex and the functionality of dyed silk fabrics by applying a polyethylene glycol (PEG) template to the enzymatic polymerisation of PGA/PPy. The polymerisation mechanism of the complexes was analysed in detail using UV-visible spectroscopy, Fourier-transform infrared (FTIR) spectroscopy, and high-performance liquid chromatography electrospray ionisation mass spectrometry (HPLC-ESI-MS). Consequently, the PGA/PPy/PEG complex has a higher degree of polymerisation than the PGA/PPy prepared without PEG, indicating that the PEG template can promote the polymerisation of PGA and PPy. As a result, we found that the presence of the PEG template improved the thermal stability and UV protection function of the dyed silk fabric, but did not impair the electrochemical activity of silk fabric. As a result of analysing the colour depth, it exhibited a higher K/S value compared to the dyed silk fabric in the absence of PEG. Additionally, its colour fastness was improved.
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Journal of Energy Storage
·
2022
·
IF 8.907
Shikun Xiao,Xiaowu Hu,Lan Jiang,Yan Ma,Yinhui Che,Shuai Zu,Xiongxin Jiang
Composite phase change materials have been extensively researched and applied in the field of thermal energy storage management and photo-thermal conversion. In this research, the loofah-based porous carbon (BPC) was modified with nano-Ag particles through chemical reduction method, and then a novel polyethylene glycol (PEG)/modified bio-based loofah porous carbon (BPC-Ag) shape-stable composite phase change material (SSPCM) was prepared. The experimental results indicated that the addition of nano-Ag particles not only considerably improved the thermal conductivity of the PEG/BPC-Ag composite PCMs (from 0.349 W m −1 K −1 to 0.632 W m −1 K −1 ) compared to the PEG/BPC composite PCMs, but also significantly improved its photo-thermal conversion efficiency (from 76.8 % to 92.3 %). In addition, the PEG/BPC-Ag has excellent thermal stability and reusability , which exhibited favorable phase change performance even after 100 thermal cycles. The results showed that the PEG/BPC-Ag has broad application prospects in the fields of photo-thermal conversion and thermal energy storage management.
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高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Jiaying Zhang,Wenjie Zhang,Yue Zhang
Zinc titanate-quartz composite microspheres were synthesized via a sol-gel route, and polyethylene glycol was used to reduce ZnTiO 3 crystal aggregation and to promote the photocatalytic activity of the ZnTiO 3 (n)-SiO 2 composites. The crystallite size of ZnTiO 3 was found to decrease from 37.8 nm (ZnTiO 3 (0)-SiO 2 ) to 27.2 nm (ZnTiO 3 (2.5)-SiO 2 ) with increasing polyethylene glycol amount. Many free fine ZnTiO 3 particles were obtained in the composites after the removal of polyethylene glycol during calcination . The bandgap energies of ZnTiO 3 (0)-SiO 2 , ZnTiO 3 (0.5)-SiO 2 , ZnTiO 3 (1.5)-SiO 2 and ZnTiO 3 (2.5)-SiO 2 were measured as 3.49, 3.71, 3.89 and 3.54 eV, respectively. Both the pore volumes and the surface areas of ZnTiO 3 (0.5)-SiO 2 and ZnTiO 3 (1.5)-SiO 2 were found to be enlarged compared to those of ZnTiO 3 (0)-SiO 2 . Polyethylene glycol can significantly enhance the photocatalytic activity of ZnTiO 3 (n)-SiO 2 composites. In terms of hydroxyl radical production, the composites follow the sequence ZnTiO 3 (1.5)-SiO 2 , ZnTiO 3 (0.5)-SiO 2 , ZnTiO 3 (2.5)-SiO 2 and ZnTiO 3 (0)-SiO 2 . The RBR X–3B degradation rate constants for ZnTiO 3 (1.5)-SiO 2 , ZnTiO 3 (0.5)-SiO 2 and ZnTiO 3 (0)-SiO 2 were calculated as 0.02474, 0.02201 and 0.01777 min −1 , respectively. A total of 89.5% of RBR X–3B molecules were degraded on ZnTiO 3 (1.5)-SiO 2 after 80 min of reaction, leading to the decomposition of major organic groups in the dye.
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