Chemical Engineering Journal最新文献

{"title":"Highly Efficient Oxidation of N, N-Dimethylformamide at Low Temperature over a Mn-based Catalyst by Optimization Support","authors":"Dongsheng Ye, Min Ding, Meixingzi Gao, Mingqi Li, Yu Wang, Lai Jin, Wangcheng Zhan, Li Wang, Yun Guo, Qiguang Dai, Yanglong Guo, Aiyong Wang","doi":"10.1016/j.cej.2024.158752","DOIUrl":"https://doi.org/10.1016/j.cej.2024.158752","url":null,"abstract":"The evaluation of catalytic oxidation of nitrogenous volatile organic compounds (NVOCs) relies on two key indicators: activity and N₂ selectivity. In this work, three different supports (SiO₂, ZSM-5 and Al₂O₃) loading with Mn or Mn-Ce were synthesized by deposition-precipitation for catalytic combustion of N, N-Dimethylformamide (DMF). Mn-Ce/ZSM-5 catalyst displayed the best performance for DMF oxidation, achieving 100% DMF conversion and CO₂ selectivity at 240 °C as well as 90% N₂ selectivity at 400 °C. It also exhibits excellent water resistance and high stability. All the characterization results indicated that the state of Mn species was positively correlated with catalytic activity. The addition of Ce species weakened the inhibitory interaction between Mn species and Al species, resulting in an elevation in the state of Mn species which was highest of the six catalysts, thus increasing activity. Meanwhile, the rise in surface oxygen species resulted in high CO₂ selectivity and rapid oxidation of NH₃. Furthermore, Bronsted acid sites on ZSM-5 facilitated NH₃-SCR progress, achieving a high N₂ selectivity at high temperatures.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"87 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sandwiched fluorinated nanofiltration membrane for enhanced removal of micromolecular organic chemicals in petrochemical wastewater","authors":"Jinming Lei, Ruifang Qi, Sadam Hussain Tumrani, Yu Yang, Chenghong Feng","doi":"10.1016/j.cej.2024.158790","DOIUrl":"https://doi.org/10.1016/j.cej.2024.158790","url":null,"abstract":"The petrochemical industry discharges large amounts of wastewater containing various micromolecular organics, but existing technologies are difficult to remove them, which poses serious challenges to ecosystems and human health. Herein, a novel nanofiltration membrane with alternating hydrophilic–hydrophobic functional layers was developed. The enhanced removal and mechanism of typical micromolecular organics, including <em>N,N</em>-dimethylformamide (DMF), aromatic compounds and long-chain hydrocarbons in petrochemical wastewater were investigated. The modified membrane was assembled alternately with polytetrafluoroethylene (PTFE) and polyvinyl alcohol − maleic acid − sodium styrene sulfonate (PMS). The introduction of hydrophilic PMS underlayer reduced the aggregation of hydrophobic PTFE, leading to the formation of uniform and smaller membrane pores (i.e., from 0.45 nm to 0.22 nm). The alternating hydrophilic–hydrophobic layers overcome the limitations of the single hydrophilic interaction and can efficiently remove broad-spectrum micromolecular pollutants (e.g., the DMF removal efficiency is increased by 64.7 %) and decrease membrane fouling by 88.5 %, which compensates for the performance defects of conventional nanofiltration membranes. Moreover, the novel membrane was proven to be effective in treating petrochemical wastewater, meeting discharge standards and maintaining excellent performance stability after six cycles. This study proposed an attractive approach for the construction of high-efficiency nanofiltration membranes for the deep purification of industrial wastewater containing micromolecular pollutants.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"261 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bioengineered composite hydrogel scaffold for accelerated skin regeneration and wound repair","authors":"Lusi Chen, Longyou Xiao, Yahao Ma, Pengfei Xie, Jianghui Liu, Cong Wang, Nuan Chen, Xiaoying Wang, Liumin He","doi":"10.1016/j.cej.2024.158773","DOIUrl":"https://doi.org/10.1016/j.cej.2024.158773","url":null,"abstract":"Wound repair is a common clinical challenge and is critical to patients’ life quality after skin injuries. Despite extensive efforts, the wound healing remains unsatisfied due to the complicated cell behavior and biochemistry of the wound healing process. In recent years, biomaterials have gained attention for their potential to promote skin regeneration, underscoring the need for innovative materials that effectively enhance the healing process. This study introduces a novel hydrogel, HADA/HRR-Cur, developed by combining dopamine-<em>grafted</em>-hyaluronic acid (HADA) with a functional self-assembling peptide (HRR, HGF(RADA)₄DGDRGD_S) and curcumin (Cur). The hydrogel shows good tissue adhesion, excellent self-healing properties, and sustained release of Cur, alongside notable anticoagulant and anti-inflammatory effects. When integrated with silk fibroin/small intestinal submucosa decellularized extracellular matrix (SF/SIS-dECM) nanofibrous membranes, this composite scaffold exhibited remarkable promotion on wound healing through supporting collagen formation, vascular regeneration and anti-inflammatory in a rat wound repair model. The reported material is a promising tool for wound repair and may be applied to diverse tissue engineering application.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"65 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient capture of gaseous, aqueous iodine, near-sunlight white light emission and iodine sensing in 12-connected and [Pb6]-cluster based MOFs","authors":"Ya-Nan Yu, Wei-Min Ma, Jia-Xin Wu, Qian Zhang, Jie Zhou, Ke-Ke Jiang, Dan-Dan Wang, Yong-Kang Li, Yang-Min Ma, Zheng Yin","doi":"10.1016/j.cej.2024.158782","DOIUrl":"https://doi.org/10.1016/j.cej.2024.158782","url":null,"abstract":"The radioactive iodine as highly harmful fission waste from nuclear power production features fifteen-million years radiation period and easy diffusion, yet its efficient treatment and sensing is greatly challenged by the operation concentration as low as several ppm in gaseous and aqueous medium. A (3,12)-connected and [Pb₆(<em>µ</em>₄-O)₂(COO)₈] based MOFs of [Pb₆(<em>μ</em>₄-O)₂(pia)₄]·4DMF (<strong>1</strong>) was rationally constructed as a multifunctional materials for iodine capture and sensing, which possesses the highest void fraction of 34.4 % among all known cluster based Pb-MOFs. Microwave-assistant solvothermal reaction facilitates gram-scale synthesis of <strong>1</strong> with yield of 82 % within 4 h. The 1D round channels sized at 1.0 nm coupled with high structure stability of the MOFs contribute to accommodate iodine. <strong>1</strong> can rapidly capture iodine vapor at 70 °C in 6 h with fully utilized nanopores, resulting in a high iodine packing density of 3.52 g cm⁻³ closely matching that of iodine single crystal. Particularly, the MOFs of <strong>1</strong> exhibits long-lasting adsorption to iodine vapor at extremely low concentration of 120 ppm, as well as efficient capture of I₂ in 1.0 × 10^-4 M aqueous solution with removal percentages of 67.1 % in only 20 min, driven by synergistic host–guest interactions. The MOFs is further discovered as a single-phase white-emitting phosphor with quite broad fluorescence spectrum covering the entire visible region, benefited from the multiple Pb···Pb interactions and change-transfer between the metal and ligand. White light emitting diodes can be created by coating commercial blue LEDs with phosphor <strong>1</strong>, generating pure white chromaticity coordinates of (0.313, 0.338), a near daylight color temperature of 6420 K, a high color rendering index of 85 and light maintenance up to 120 °C. The migration of iodine into the channels of <strong>1</strong> led to obvious fluorescence quenching. As the combined result, <strong>1</strong> presents a rare and instructive multifunctional MOFs that exhibiting efficient capture to low-concentration iodine in gaseous/aqueous condition and fluorescent detection to iodine.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"261 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stepwise chemical-electrochemical cycles for decoupling modular biomass oxidation and hydrogen evolution","authors":"Shih-Wei Lin, Song-Chi Chen, Ying-Rui Lu, Chih-Jung Chen","doi":"10.1016/j.cej.2024.158764","DOIUrl":"https://doi.org/10.1016/j.cej.2024.158764","url":null,"abstract":"Electrochemical biomass oxidation offers a sustainable method for producing high-value chemicals using green electricity, along with the coproduction of H₂ fuel through the hydrogen evolution reaction (HER). Typically conducted in alkaline electrolytes to enhance efficiency, this medium actually leads to significant side reactions in biomass molecules, such as the Cannizzaro disproportionation and self-polymerization. Besides, the negative impact of cathode on biomass during HER, which causes substantial carbon loss, has frequently been overlooked. Our study introduced the utilization of redox reservoirs (RRs) to effectively decouple the half-reactions, allowing for their independent operation. Characterized by a highly positive formal potential, the RR spontaneously performed the 5-hydroxymethylfurfural oxidation reaction (HMFOR) in water (without supporting electrolyte) under open circuit conditions. This approach not only eliminated the need for subsequent purification of final products but also significantly avoided side reactions, even with highly concentrated reactants. <em>In-situ</em> X-ray absorption spectroscopy revealed Ni³⁺ species within RRs as the active sites for water-based HMFOR, following first-order kinetics. Moreover, the flexibility of RRs was demonstrated by the successful oxidation of furfural, indicating their wide applicability for various organic substrates","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"31 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Alkali metal ion-doped GaN for ultrafast electrochemical capacitor: Doping mechanism, structural adjustment, and structure–performance relationship","authors":"Yuzhou Zhu, Kai Zhou, Wanting Liu, Weisheng Fu, Jinlin Zhang, Benkang Chen, Haihui Jiang, Libin Liu, Ligang Gai","doi":"10.1016/j.cej.2024.158761","DOIUrl":"https://doi.org/10.1016/j.cej.2024.158761","url":null,"abstract":"Microstructure adjustment plays a crucial role in improving the surface reactivity of materials. However, surface reactivity improved by alkali metal doping for electrode materials applied in energy storage is usually overlooked by researchers. Herein, we report on facile synthesis of Li⁺/Na⁺-doped GaN microcrystals and their structure–electrochemical performance relationship. The dosage concentration is optimized, and the doping mechanism is proposed in terms of the metathesis reaction of Li₂O/Na₂O with GaN under carbothermal reduction conditions using LiNO₃/NaNO₃ as the dopants. Both macro- and microstructures of GaN can be tuned through Li⁺/Na⁺ doping. In addition to the increased specific surface area and total pore volume, the reduced <em>d</em> band center and band gap caused by Li⁺/Na⁺ doping present an anti-<em>d</em> band center phenomenon and contribute to enhanced ion storage and transport, leading to excellent electrochemical performance of the target materials. In addition, symmetric electrochemical capacitors with the target materials can deliver output voltage of 2.4, 1.5, and 1.0 V at –60, 25, and 120 °C by using phosphoric acid–water–dimethyl sulfoxide mixed solution as the electrolyte. The symmetric electrochemical capacitors with Na⁺-doped GaN can deliver specific energy of 45.9 mW h cm⁻³ at 344 mW cm⁻³ and –60 °C, 36.1 mW h cm⁻³ at 215 mW cm⁻³ and 25 °C, and 16.7 mW h cm⁻³ at 287 mW cm⁻³ and 120 °C, respectively, holding considerable promise for practice in all-temperature environment.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"264 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomimetic robust polymeric interphase facilitating stable Zn metal anode","authors":"Duo Chen, Wentong Shen, Zixuan Dai, Yuanhang Wang, Tengyu Yao, Sikan Wang, Yiming Zhang, Chenglin Miao, Yicheng Tan, Laifa Shen","doi":"10.1016/j.cej.2024.158787","DOIUrl":"https://doi.org/10.1016/j.cej.2024.158787","url":null,"abstract":"Rampant dendrite growth and hydrogen evolution reaction of Zn anode severely hinder the practical application of aqueous zinc-ion batteries (AZIBs). Traditional surface modifying layers tend to have distinct interface with the Zn plate, which readily results in detachment and failure of the modification under repeated cycling. Herein, inspired by mussel adhesive proteins, a uniform and dense polydopamine (PDA) layer is introduced on Zn surface by a Cu²⁺-assisted minute-level in-situ polymerization method. The robust polymeric interphase can improve the zincophilicity and wettability of Zn surface, reducing the energy barrier for Zn nucleation to facilitate homogenous dendrite-free deposition. Importantly, the PDA layer can promote the desolvation process of hydrated Zn²⁺ by abundant –NH₂ and –OH groups, and effectively suppress side reactions associated with H₂O, such as hydrogen evolution reaction, and Zn corrosion, ensuring the long-term cycling stability of the Zn anode. As a result, the PDA modified Zn anode achieves prolonged cycling stability of 840 h under high deposition capacity of 5 mAh cm^–2 and current density of 5mA cm^–2. Moreover, the pouch-type cell based on the PDA modified Zn anode delivers impressive reversible lifespan for 500 cycles at 0.5 A g^–1, demonstrating the potential application prospect for this biomimetic interphase in AZIBs.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"11 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Supramolecular flame retardants enabled fire-extinguishing polycarbonate with enhanced thermal stability and reduced smoke release","authors":"Qingyao Gao, Menghe Zhu, Jihang Wang, Jianhao Zhu, Xinliang Liu, Chuanxin Xie, Xilei Chen, Lei Liu, Pingan Song","doi":"10.1016/j.cej.2024.158762","DOIUrl":"https://doi.org/10.1016/j.cej.2024.158762","url":null,"abstract":"The creation of mechanically robust, thermostable, and flame-retardant polycarbonate (PC) is highly desirable in the industry. Unfortunately, achieving such a comprehensive performance portfolio remains challenging due to their different governing mechanisms. Most flame retardants provide satisfactory fire retardancy at the expense of other properties. Herein, we rationally design three novel supramolecular flame retardants (PAPZ@Co, PAPZ@La, PAPZ@Fe) containing phosphorus, nitrogen, and transition metal elements based on ionic and metal–ligand coordination interactions. Benefiting from the π-π stacking and ionic interactions, these supramolecular flame retardants show high thermal stability and good compactivity with PC, thus maintaining the good tensile strength of the matrix. Particularly, PAPZ@Fe enhances the thermal stability of PC by improving the initial degradation temperature by 8 °C and char yields by 36.8 % at 800 °C. The addition of 1.5 wt% PAPZ@Fe enables PC to achieve a desirable UL-94 V0 rating and a high limiting oxygen index of 31.6 %, in combination with a 36.3 % decrease in the peak heat release rate. This work offers a facile strategy for creating high-performance PC for practical application in industry.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"25 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapid in situ photochemical synthesis of carbon dots in polymer coating by infrared CO2 laser writing for color tunable fluorescent patterning","authors":"Yuanyuan Guo, Yixun Gao, Yao Wang, Yi-Kuen Lee, Patrick J. French, Ahmad M. Umar Siddiqui, Hao Li, Guofu Zhou","doi":"10.1016/j.cej.2024.158749","DOIUrl":"https://doi.org/10.1016/j.cej.2024.158749","url":null,"abstract":"The significant <em>in situ</em> multicolored patterning without changing printing tools nor substrate media still remains challenging, especially toward practical applications for anti-counterfeiting. This research invented a unique universal approach for the laser-induced <em>in situ</em> synthesis of colorful fluorescent patterns (from blue: CIE 0.15, 0.18 to red orange: CIE 0.36, 0.39) through the controlled formation of N, S doped carbon dots (CDs) in solid composite polymer films or hydrogel with a hierarchical and physically unclonable microsurface architecture for anti-counterfeiting. The <em>in situ</em> patterning approach, coupled with multi-layer technique, yielding designable blue, yellow, orange, and red orange color under 365 nm in the same pattern. A 5 cm² colorful pattern can be efficiently finished within 5 min without changing substrate and the line width accuracy can be up to 300 μm. The absolute quantum efficiency of the blue pattern reached as high as 23 %. The fluorescent patterns can be survived at indoor for 24 months. The hydrogen bonding interactions between the CDs precursor and polymer facilitated the generation, uniform dispersion and stabilization of CDs during the laser irradiation. The hypothesis that laser irradiation induced photochemical reactions of CD precursors within a polymer matrix was supported by thermodynamic assessments. The universality of <em>in situ</em> fluorescent patterning strategy was demonstrated by developing fluorescent patterns on both solid polymer films, hydrogel, pharmaceutical packaging and textile","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"7 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phototunable phosphorescence energy transfer based on photodimerization of coumarin-12-crown-4 accelerated by γ-cyclodextrin","authors":"Hui-Juan Wang, Yan-Tao Li, Ming-Che Shao, Chang-Shuo Yu, Jin-Yao Yang, Lingyang Liu, Suna Wang, Jianmin Dou","doi":"10.1016/j.cej.2024.158772","DOIUrl":"https://doi.org/10.1016/j.cej.2024.158772","url":null,"abstract":"Herein, we designed and synthesized water-soluble coumarin-12-crown-4 (<strong>C12C4</strong>) which can be encapsulated by γ-cyclodextrin (γ-CD) with 2:1 ratio forming psuedorotaxane, accompanying the morphology from nanotubes to regular nanosheets with a range of edge lengths (2–10 μm) and a range of thicknesses (200–500 nm). With α-CD, β-CD as references, the encapsulation by γ-CD could promote the photodimerization process of <strong>C12C4</strong> after irradiation with 365 nm light. Meanwhile, the morphology of pseudorotaxane <strong>C12C4</strong>⊂γ-CD changed into a chapped surface. By virtue of this, the pseudorotaxane <strong>C12C4</strong>⊂γ-CD was doped into poly (vinyl alcohol) (PVA) and a phosphorescence emission at 515 nm (τ = 458.80 ms) appeared and showed green afterglow for 3 s. Further doping commercial dye rhodamine B (RhB) into <strong>C12C4</strong>⊂γ-CD@PVA, a highly efficient triplet-to-singlet Förster-resonance energy transfer (TS-FRET) system was obtained with multicolor afterglows. More interestingly, both the phosphorescence of <strong>C12C4</strong>⊂γ-CD@PVA and the delayed fluorescence of <strong>C12C4</strong>⊂γ-CD + RhB@PVA could be tuned by 365 nm light irradiation. Finally, the photo-controlled phosphorescence smart materials were used to constructed INHIBIT logic gate, logic operation of INHIBIT + AND and time resolved anti-counterfeiting.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"23 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}