INORGANIC CHEMISTRY COMMUNICATIONS
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2025
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IF 5.4
Jian Gao,Xinrui Dai,Zhenhua Gu,Guixian Deng,Jiangyong Yuan,Kongzhai Li
Catalysts loaded with metal oxides of M (M = Mn, Co, Ce) were synthesized by deposition precipitation method using cold rolled sludge (iron oxide as the main component) as a raw material for the selective catalytic reduction of NO x by ammonia (NH 3 -SCR). Among the various formulations, the co-supported catalyst containing 5 % Mn and 5 % Co on CRS-400 exhibited exceptional SCR performance, achieving over 90 % conversion of NO x from 80 °C to 200 °C. The addition of 5 % Mn and 5 % Co as active components resulted in an increase in the specific surface area for catalytic performance and an enhancement of the redox capacity, leading to a significant improvement in catalyst activity. The catalyst’s efficient denitration performance was attributed to the synergistic interaction between Mn, Co, and Fe oxides, resulting in a catalyst with a higher proportion of adsorbed oxygen, as well as an elevated composition of Mn 4+ and Fe 2+ species. The catalyst demonstrated excellent SCR activity at low-temperatures, indicating its potential for downstream applications in soot treatment equipment. This would achieve the dual benefits of purifying the atmosphere and disposing of solid waste.
研究领域:
环境科学
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催化化学
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产品关联
DOI
高影响因子
CELLULOSE
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2024
·Vol. 31
·期 6
·3907-3919
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IF 4.9
Yang Jingjing,Yang Xinyi,Wu Cheng,Chen Xin,Huang Fang,Lv Jingchun
To explore methods for achieving clean application of reactive dyes from the source, three polyfunctional reactive dyes (YMR-1–YMR-3) using different diamine compounds as bridge groups were developed. The three dyes showed different solubility in water, which was 230, 100, and 160 g/L, respectively, at 25 ℃. The three reactive dyes were used to dye cotton fabrics through an energy-saving cold pad-batch dyeing technique. The factors influencing on the dyeing performance in the cold pad-batch dyeing technique were also comprehensively studied. The maximum fixation values of YMR-1, YMR-2, and YMR-3 were 94.19, 90.79, and 92.18%, respectively. Levelness of the cotton fabrics dyed with the three dyes was investigated and further discussed. The results showed that the dyed cotton fabrics exhibited good levelness with a low color difference value (Δ E < 0.40). The dry rubbing fastness of the cotton fabrics dyed with the three dyes was grade 4, and the corresponding wet rubbing fastness was grade 3 or 2–3. The staining fastness of the dyed cotton fabrics was grade 4–5 or 4. The light fastness of the cotton fabric dyed with YMR-1 was grade 4, and that of YMR-2 and YMR-3 was grade 3.
研究领域:
纺织化学
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染整工程
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产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2024
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IF 5.5
Wei He,Ru Yan,Xiang Gao,Yan Wang,Xinxiao Sun,Houyi Ma
Most Zr conversion coatings are prepared on Al alloys , with Al 3+ from the substrate contributing significantly to the film growth process. Thus, the effect of Al 3+ on the electrochemical characteristics, surface microstructure and film-formation mechanism of Zr-based conversion coatings on old- rolled steel (CRS) substrates was investigated by growing the coatings with and without Al 3+ as an additive. Electrochemical tests indicated that the anticorrosion performance of the Zr-Al coatings prepared in the presence of Al 3+ was greatly superior to that of Zr conversion coatings obtained in the absence of Al 3+ . Field-emission scanning electron microscopy and X-ray photoelectron spectroscopy analysis indicated that adding of Al 3+ in the conversion bath changed the surface microstructure of the Zr coating, greatly promoted the deposition of Zr and F on the CRS substrate and increased the film thickness and density. Both coatings were embedded into the etched CRS substrates. The presence of Al 3+ additive induced the formation of different coating components . The Zr coating mainly consisted of ZrO 2 and some FeF x , whereas the Zr-Al coatings comprised of ZrO 2 , ZrO x F y , Al 2 O 3 , AlF x and some FeF x . The present study results confirm the key role of Al 3+ as an additive in the film formation and growth process of Zr coatings and its effect on enhancing the anticorrosion performance of CRS substrates in NaCl solutions.
研究领域:
材料科学
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电化学
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产品关联
DOI
高影响因子
ACTA MATERIALIA
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2024
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IF 8.3
Xiaohui Zhang,Ding-Bang Xiong,Yazhou Liu,Yanlin Jia,Yi Zhang,Meng Zhou,Hanjie Liu,Yongfeng Geng,Xinyao Wang,Pan Liu,Xiaoguo Song,Di Zhang
Nanostructured metals are strong, but have poor ductility and thermal stability, and require extreme preparation conditions. We conceive a strategy of ultrahigh extensibility enabled by van der Waals interface for fabricating bulk nanostructured metals via plastic deformation under moderate conditions. As an example, laminated copper grains are continuously refined to be less than 50 nm in thickness, owing to interlayer sliding of multilayer graphene and co-deformation of Cu C along their interfaces in a conventional cold-rolling process. The as-rolled nanostructured copper with 34,000 % deformation degree has superior combination of ultimate tensile strength and electrical conductivity up to (827 MPa, 85.2%IACS), and exhibits extraordinarily thermally stable keeping an average grain size as small as ∼600 nm even after annealing at a temperature near the melting point. This van der Waals interface strategy provides an efficient and industrially scalable route for fabricating high performance bulk nanostructured metals via conventional methods under moderate conditions.
研究领域:
材料科学
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纳米技术
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DOI
高影响因子
Sustainable Materials and Technologies
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2024
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IF 8.6
Yu Shao,Jiawei Li,Dongming Qi
The conventional reactive dyeing of cotton fabrics creates a large amount of difficult-to-treat wastewater because of a low dye uptake and fixation and uses a large amount of dye-promoting electrolytes. In this research, cationic polyacrylate-encapsulated pigment-colored hybrid latex nanoparticles (PPNs) with three primary colors were synthesized by surfactant-free reversible addition–fragmentation chain transfer (RAFT) emulsion polymerization and then applied for the salt-free, near zero-discharge, and dyebath-recyclable cold pad dyeing of cotton fabrics with less water and energy consumption. The effect of the composition structure of PPNs on their color properties was systemically investigated, and the pad-dyed fabrics were compared with conventional salt-free dyeing samples. The results demonstrated that the PNNs pad-dyed cotton fabrics achieved satisfactory wet rubbing fastness (level 4), color strength , leveling property, hand feel, and air breathability. The color regulation and matching of the pad-dyed fabrics could be designed by adjusting the contents of three primary color PPNs due to their nanosize and intercompatibility, thus making it possible to rapidly manufacture colors. Furthermore, the PPNs dyebath proved to be recyclable for circular pad dyeing of cotton fabrics, remarkably reducing the wastewater discharge. Calculations showed that the comprehensive water, energy, and cost of 1 kg cotton fabrics could be reduced by about 88.9%, 58.5%, and 51.7%, respectively, compared with conventional pad dyeing with reactive dyes. This innovative salt-free and dyebath-recyclable circular cold pad dyeing technology not only significantly reduces pollution generated and wastewater discharged, but also uses less water and energy, providing a valuable reference for environment-friendly near zero-discharge and sustainable pad dyeing methods for textiles.
研究领域:
纺织工程
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环境科学
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材料科学
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产品关联
DOI
高影响因子
CORROSION SCIENCE
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2025
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IF 8.5
Ru Yan,Xiao Zhang,Xiang Gao,Wei He,Houyi Ma
PAM formed by self-organization can be considered as nanocontainers of phytic acid (PA) molecules and used for the corrosion protection of metal materials. Herein, self-strengthening PAM-Zn conversion films were successfully constructed on CRS substrate by a simple dipping method. The highest protection efficiency of PAM-Zn films was 81.0 % and was further increased beyond 90 % after immersion in NaCl solution. The immersion treatment in NaCl solution not only promoted the formation of more P O 4 3 − and PAM-Zn complex, but also changed the surface microstructure and increased the film thickness and compactness, thereby leading to the great enhancement of anti-corrosion performance.
研究领域:
材料科学
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腐蚀与防护
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产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2024
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IF 5.3
Penghui Gong,Wei Wang,Mingpan Xue,Pengfei Liu,Shijie Ding,Chengcheng Yu
The hexagonal boron nitride (h-BN) nanosheets were obtained by probe ultrasonication-assisted liquid-phase exfoliation and functionalized with sodium oleate. The tribological properties of functionalized h-BN (f-BN) nanofluid were tested using the four-ball wear test machine. The rolling lubrication performance of f-BN nanofluid was assessed using a four-high cold rolling mill. The maximum nonseizure load of about 637 N was obtained with 0.08 wt % f-BN nanofluid, which increased by 35.3% compared with the based fluid. The minimum average coefficient of friction (COF) of about 0.077 was obtained with 0.05 wt % f-BN nanofluid. The results of cold rolling lubrication tests indicated that the rolling force initially declined and then increased with the concentration of f-BN nanosheets. The lowest rolling force was obtained with 0.05 wt % f-BN nanofluid. In addition, the minimum surface roughness of the cold-rolled plate was 0.1847 μm, which decreased by 88.66% compared with no lubricant. It proved that the addition of f-BN nanosheets to the based fluid can contribute to improving rolling lubrication performance and rolled plate surface quality. In addition, the 0.05 wt % f-BN nanofluid was used as a lubricant that could refine the grains and improve the hardness of the rolled plate. Furthermore, the lubrication mechanisms of f-BN nanofluid were discussed.
研究领域:
材料科学
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机械工程
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表面工程
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2018
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IF 3.779
Xiang Gao,Ru Yan,Lei Xu,Houyi Ma
Amorphous phytic acid nanoparticles were prepared via a condensation reaction of phytic acid with aminopropyltriethoxysilane. X-ray photoelectron spectroscopy and fourier transform infrared characterizations demonstrated that there were abundant phosphate groups on the surface of as-prepared phytic acid nanoparticles. The advanced composite phytic acid nanoparticles doped silane sol-gel coating was fabricated on the cold-rolled steel substrates using sol-gel technique and introducing phytic acid nanoparticles into the coating. The results of electrochemical tests showed that the doping of phytic acid nanoparticles greatly improved the anti-corrosion and durable performances of the silane coatings. The simple strategy which utilized the “active” nanoparticles to improve the corrosion mitigation and durable performances of coating is expected to find wide application in the anti-corrosion coating industry.
研究领域:
材料科学
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腐蚀与防护
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产品关联
DOI
高影响因子
Lubrication Science
·
2023
·Vol. 35
·期 7
·513-527
·
IF 1.9
Qi Liu,Jing Li,Junfeng Zhang,Hengdi Yuan,Ange Nsilani Kouediatouka,Guangneng Dong
Currently, substantial adhesion wear frequently occurs in Zr alloy cold rolling, which not only affects the quality of product's surface, but shortens the mould's service life. In this paper, water-based lubricant was prepared by using ZnO as additive and hydroxyethyl cellulose (HEC) as dispersant. The tribological test results showed the friction coefficient decreased by a maximum of 84.6%, and the friction surface was smooth and flat, with essentially no wear. By analysing the friction area, it was found after ZnO entered the friction interface, HEC carried a hydrated molecular layer to form a stable lubrication film at the interface. This film worked with nanoparticles to reduce friction and wear, and is expected to prolong the service life of rolling dies.
研究领域:
材料科学
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机械工程
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
·
IF 9.965
Xuelian Fu,Chaoqun Shang,Guofu Zhou,Xin Wang
Li is attractive anode for next-generation high-energy batteries. The high chemical activity, dendrite growth, and huge volume fluctuation of Li hinder its practical application. In this work, a Li–BiOF composite anode (LBOF) is obtained by combining Li metal with BiOF nanoplates through facile folding and mechanical cold rolling. Further, Li 3 Bi/LiF/Li 2 O filler is formed by the in-situ reactions of BiOF with contacted Li. In the filler, the Li 3 Bi, with high ionic conductivity and a lithiophilic nature, provides a mutually permeable channel for Li + diffusion. The low surface diffusion energy barrier of Li 3 Bi and LiF can further promote the uniform deposition of Li. The conductive lithiophilic filler can reduce the local current density and provide a spatial limitation to the deposited Li. Consequently, the symmetrical LBOF||LBOF cell can cycle stably at 1 mA cm −2 for over 1300 h. Additionally, the surface of LBOF is flat with suppressed dendrite formation and free of dead Li accumulation, and the change in electrode volume is significantly alleviated. Furthermore, the LBOF||LiFePO 4 full battery can maintain a stable cycle of more than 200 times with high capacity retention of 88.7% in a corrosive ester-based electrolyte. This simple mechanical approach is compatible with the current industrial route and is inspiring to solve the long-standing lithium-dendrite problem.
研究领域:
材料科学
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电化学
·
电池技术
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Wangzhe Xia,Fei Zhao,Pai Fang,Mingze An,Junjiang Zhu,Kai Cheng,Minggui Xia
Magnetic iron oxides are usually employed as main components of 4-nitrophenol (4-NP) reduction catalysts. Here, magnetic Fe 3 O 4 nanoparticles (Rec-Fe 3 O 4 ) recycled from rolling oil sludge (ROS) were directly applied in 4-NP reduction reaction. The Rec-Fe 3 O 4 nanoparticles were high purity of Fe 3 O 4 with 0.9 % C content, which were further probed as carboxylates and hydrocarbon alkyl species. Compared with commercial nano-Fe 3 O 4 (Com-Fe 3 O 4 ), the Rec-Fe 3 O 4 exhibited excellent 4-NP reduction performance with easy magnetic separation showing complete 4-NP conversion to 4-AP within 270 s, and its activity remained stable even after 5 consecutive cycles. Its activation energy was also estimated to be far much less than that of Com-Fe 3 O 4 . Benefiting from its special spontaneous formed Fe 3 O 4 @C structure during ROS generation, more active low valence Fe species remained and C shell accelerated electronic transfer on the Rec-Fe 3 O 4 surface, both of which led to superior activity during 4-NP reduction reaction. This finding opens up a new insight to both of utilizing ROS waste resource and green synthesis of highly efficient 4-NP reduction catalysts.
研究领域:
环境科学
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材料科学
·
化学工程
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产品关联
DOI
高影响因子
Journal of Water Process Engineering
·
2021
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IF 5.485
Gongyi Jiang,Hongdi Li,Meng Xu,Huimin Ruan
In this work, a combination zero liquid discharge of reverse osmosis (RO), electrodialysis (ED) and bipolar membrane electrodialysis (BMED) for salt recovery and acid/base production is proposed for the treatment of cold-rolling wastewater. In ED concentrating process, parameters such as the most suitable voltage drop, membrane type and volume ratio were investigated according to concentration factor, energy consumption and water transport. The results indicated that the CMX/AMX stack showed good concentration factor of 2.19 in first-stage ED, and that the average flux of Na 2 SO 4 approached a high value (4.94 mol/m 2 h) at voltage drop of 12 V. Furthermore, an optimal volume ratio of 4:1 was selected for two-stage ED process. The concentration factor could approach 5.14 through two-stage ED (V d :V c = 4:1), while the energy consumption was 61.88 kW h/m 3 with second-stage ED. As result of BMED application, the Na 2 SO 4 -containing ED concentrate solution was sucessfully desalinated for acid/base production and pure water generation. The generated NaOH concentration can increased up to 2.03 mol/L with BP-1E/AMX/CMX stack (V f :V b :V a = 5:3:3). The results demonstrated that the hybrid RO-ED-BMED process has potential applicability for the sustainable treatment of cold-rolling wastewater.
研究领域:
环境工程
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水处理
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膜技术
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废水管理
·
可持续工程
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）