JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2026
·
IF 6.2
Yuanyuan Yu,Zhen Yu,Linbin Zhu,Junfeng Niu,Hua Yin,Chang He,Jianteng Sun,Shaoyu Tang,Zhi Dang
In this study, the absorption, translocation, and transformation of p-phenylenediamines (PPDs) in rice were investigated by using a hydroponic cultivation method. The N-(1,3-dimethylbutyl)-N′- phenyl-p-phenylenediamine (6PPD), N-isopropyl-N′-phenyl-p-phenylenediamine (IPPD), and N-phenyl-N′-cyclohexyl-p-phenylenediamine (CPPD) were more prone to be accumulated in the rice root compared with N,N′-bis(methylphenyl)-1,4-benzenediamine (DTPD). The hydrolysis, methylated, hydroxylated, oxidized, reductive, C–N bond cleavage, glutathione-conjugated, and glucuronic acid-conjugated products were identified. A particularly concerning finding was that PPDs were found to generate PPD-Qs in plants for the first time. This transformation, alongside the interconversion between PPDs and their methylated or demethylated degradation products, could significantly prolong the environmental persistence of PPDs. The cytochrome P450 (CYP450), glycosyltransferases, glutathione S-transferases, and methyltransferases genes might be responsible for the PPD transformation. Additionally, PPDs strongly interacted with CYP450 enzymes, with DTPD demonstrating particularly significant binding affinity ranging from −8.17 to −9.23 kcal/mol. These results introduce uncertainties in understanding the ecological risks of PPDs and their potential human exposure.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Energetic Materials Frontiers
·
2026
·
IF 4.7
Ting Sheng,Yang Zhao,Xing Lan,Yu-ge Xiang,Tao Huang,Bo Jin,Ru-fang Peng
In this work, the application of poly( p -phenylenediamine) (PpPD) as a potential propellant stabilizer is reported for the first time, and establish a solvent-free, continuous, and efficient mechanochemical synthesis method based on spiral gas-solid two-phase flow (S-GSF). Structural and morphological characterization results show that PpPD prepared by this method boasts advantages including high purity, high yield, mild reaction conditions, and easy scalability, with a space-time yield reaching 46.25 kg⋅m -3 ⋅h -1 . In addition, the product is characterized by smaller particle size and more uniform distribution, which enhances the compatibility of the composites. After adding 3% (mass fraction) of PpPD to nitrocellulose, the nitrogen oxides produced by the decomposition, could be effectively reduced by 37.4%, and its stabilizing effect was better than that of DPA and C2. The thermal stability TGA loss was reduced by 52.5%. Electrostatic potential analysis and aromatic nitration theory indicated that the secondary amine sites of PpPD had high electron density and exhibited an obvious scavenging effect on NO x .
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Chenxiang Li,Meng Li,Guozhuang Liu,Haoxiang Zhuo,Qian Li,Hui Zhang,Guoyao Pang,Xuan Yang,Zhou Liao,Kuan Wang,Dongniu Wang,Biwei Xiao,Dongsheng Geng
Layered P2-type sodium manganese oxide has emerged as a promising cathode candidate for sodium-ion batteries due to its appealing cost-effectiveness and high discharge voltage. However, its practical capacity within the voltage range of 2.0–4.0 V (vs Na+/Na) is relatively low, and its rate capability is hampered by the adverse charge/vacancy ordering during charge/discharge. In this study, a layered P′2/P3 mixed-phase Na0.8-aMn0.675Ni0.225Li0.1O2–x cathode with high (003) crystal plane intensity was designed by introducing oxygen vacancies to P2-structured materials. Aided by these advantages, the hybrid cathode material demonstrates impressive structural and thermal stability and faster Na-ion diffusion kinetics compared to a regular P2 material. Half-cell shows an initial discharge capacity retention of 101 mA h/g at 12 mA/g and 92.25% retention after 500 cycles at 120 mA/g. In combination with a hard carbon anode, the 0.5 A h pouch cell achieved a prevailing capacity retention of 95.2% after 2600 cycles at 36 mA/g. This work opens new dimensions for layered cathode materials with the aim of achieving superior cyclabilities.
研究领域:
材料科学
·
电化学
·
储能
·
电池技术
✓ 已验证
DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2022
·Vol. 30
·期 5
·12138-12151
·
IF 5.19
Kong Wenwen,Huang Suiliang,Shen Boxiong,Ekaterina Priakhina,Khatoon Zobia,Yun Huigwang
Single exposure toxicity tests of herbicides like prometryn are commonly applied in studying ecological and environmental issues, but they are more likely exposed to microalgae through multiple applications of irrigation and water flow. The toxicity of prometryn towards Microcystis aeruginosa ( M. aeruginosa ) at different growth stages (different exposure period) was determined by single and multiple exposures (different exposure mode) through 39-day batch-experiment comparison study. Inhibition rates showed that M. aeruginosa growth was greatly inhibited by exposure to prometryn in a final concentration of 80 and 160 μg·L −1 ( p < 0.05). Specifically, with the same prometryn exposure periods (lag or exponential phase) and concentrations, a single exposure displayed larger toxicity on M. aeruginosa than repetitive additions of prometryn in general according to inhibition rates. Moreover, with the same prometryn exposure modes and concentrations, inhibitory effect was higher with prometryn exposure in lag phase than that in exponential phase according to M. aeruginosa densities and inhibition rates. In general, variations of total dissolved phosphorus (TDP) and total dissolved nitrogen (TDN) with time responded negatively to M. aeruginosa growth, and added prometryn inhibits the utilization rate of both P and N. Logistic function was well used to describe algae densities ( R 2 = 0.979 ~ 0.995), growth rates ( R 2 = 0.515 ~ 0.731), specific growth rates ( R 2 = 0.301 ~ 0.648) and inhibition rates ( R 2 = 0.357 ~ 0.946) along with its combination with Monod function. In addition, results showed that shifts of limiting nutrients could be prompted by not only M. aeruginosa growth but also prometryn exposure scenarios. This study provides a basis for studying the potential harm of prometryn to the ecological environment.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2022
·
IF 4.326
Changqing Miao,Zhiying Ma,Laigui Yu,Wenya Tang,Ginping Li,Gairong Chen,Mengbing Cui
Poly(p-methoxyphenol-phenylamine) (P(MOP-PA)), a binary copolymer of a phenol and an aromatic amine, was synthesized by liquid-phase copolymerization. The tribological properties and antioxidation behavior of the as-synthesized P(MOP-PA) in castor oil and soybean oil were investigated, and its antioxidation mechanism was discussed based on theoretical calculations. The results show that the introduction of P(MOP-PA) into the two kinds of base stocks improves their antioxidation performance at elevated temperatures and reduces friction and wear under pin-on-disk and four-ball sliding tests. In addition, the intramolecular coordination of P(MOP-PA) is responsible for the reduction in the activation energy of hydrogen atom transfer and the stabilization of nitrogen free radicals, which contributes to improving the antioxidation ability of P(MOP-PA).
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Cuicui Su,Lingling Zhang,Yuanzheng Zhang,Xiaocheng Huang,Yumin Ye,Yu Xia,Zhiyi Gong,Xiaojuan Qin,Yichao Liu,Shishang Guo
In the background of air pollution and regular COVID-19 prevention, personal protective masks are necessary for our daily life. However, protective masks with high PM0.3 filtration usually have poor air permeability and are mostly disposable, leading to a heavy burden on the environment. In this work, a reusable membrane based on piezoelectric poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] nanofibers embedded with BaTiO3 nanoparticles (BTO NPs) was developed. The P(VDF-TrFE)/BTO composite nanofibers not only have enhanced piezoelectricity and surface polarity but also have reduced diameters that could be beneficial for electrostatic adhesion, pole–polar interactions, and mechanical sieving to increase the PM0.3 capture capacity. Moreover, the BTO NPs also improved the charge storage capacity of the composite membrane, which could further enhance the PM0.3 filtration efficiency after corona treatment. The piezoelectric mask based on P(VDF-TrFE)/BTO composite nanofibers has high filtration efficiencies of 96% for PM0.3 and 98% for bacteria, while the pressure drop was only 182 Pa, which is lower than the commercial N95 standard of 343.2 Pa. Furthermore, the piezoelectric mask has a long and stable filtration performance after 5 cycles of 75% alcohol disinfection, demonstrating that the P(VDF-TrFE)/BTO composite membrane has a potential application in personal protective masks with comfortable and reusable properties.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2022
·
IF 6.76
Xiaojuan Feng,Yanlong Shi,Jingmei Liang,Wei Li,Xuyuan Gou
Exploring high activity, stable and low-cost electrocatalysts are of great importance for high-efficient hydrogen production via water splitting. Herein, a cactus-like Fe, P co-doped CoNi-S array was constructed via facile hydrothermal reaction and subsequently sulfuration and phosphorization process. Benefiting from the strong synergistic effects of different components, high conductivity of bimetallic sulfide, 3D cactus-like architecture with rich channels for mass/charge transport, and Fe and P co-doping with electron structure regulation, the as-prepared Fe, P-NiCo 2 S 4 /NF presents superior electrocatalytic activity with low overpotentials of 139 and 290 mV to drive the current density of 10 and 40 mA cm −2 for HER and OER, respectively. Meanwhile, it also manifests the distinguished durability for over 60 h in alkaline media. Notably, when integrating in a two-electrode electrolytic cell with Fe, P-CoNi-S, a reduced operation voltage of 1.55 V is required to reach 10 mA cm −2 , which is superior to precious metal-based Pt/C/NF//RuO 2 /NF counterparts. Impressively, it can also be driven by sustainable solar and thermal energies motivated Stirling engine. This work offers a universal strategy for designing high-activity and durable electrocatalysts by dual doping heteroatoms and synergistic interface engineering.
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Xie Li,Qiuru Bao,Kexuan Chen,Ren He,Yuan Liu,Qi Wang
The silicone thermoplastic elastomer is highly attractive in various areas for good mechanical strength and aging resistance. However, its intrinsically high flammability limits its practical applications. Meanwhile, as a typical polymer material, its irreversible cross-linking structure makes it difficult to recycle and reprocess; a great deal of discarded silicone materials can pose a waste of resources and environmental problems. Herein, it is of great significance to prepare an intrinsic flame retardant (FR) and reprocessable silicone polyurethane (STPU). In this study, we introduce phosphorus-containing compounds (MDP) and a dynamic phenylborate ester (HDPM) bond into traditional silicone’s molecular chain structure by in situ polymerization method, which endows the material with excellent flame retardance and reprocessing properties, respectively. The resulting STPU shows a limited oxygen index (LOI) value of 26.1% and reaches at VTM-0 rating. Furthermore, by regulating the decomposition and reconstruction of the phenylborate ester structure, STPU remain the initial tensile strength and keep 87.58% of tensile strain after twice reprocessing. This high-performance sustainable STPU materials hold great promise for fire safety behavior and reutilization in practical application.
✓ 已验证
产品关联
DOI
高影响因子
FUEL
·
2022
·
IF 8.035
Huifa Zhang,Shaolin Wang,Huixian Zhang,Lingrui Cui,Fahai Cao
Ethyl levulinate (EL), as a potential fuel additive and versatile biomass-based platform molecule, has been the focus in the field of sustainable chemistry. In this contribution, a series of economic and environmental friendly biomass-derived P doped carbon catalysts were developed in this study for synthesis of EL from renewable furfural alcohol (FAL) in a hot ethanol medium. The carbon catalyst, P-C-800, synthesized via carbonizing the phytic acid at 800 °C, exhibited a good catalytic activity in alcoholysis of FAL to EL. The highest yield of EL could be 79.7% with a complete conversion of FAL at 140 °C in 6 h. Moreover, P-C-800 could be recovered efficiently and reused multiple times with sustained catalytic activity. It was revealed further by the detailed catalyst characterization and systematic evaluation of catalytic performance that both the acid content and surface area of the P-C-800 were crucial for the alcoholysis of FAL to EL.
✓ 已验证
产品关联
DOI
高影响因子
Advanced Materials Interfaces
·
2022
·Vol. 9
·期 11
·2102251
·
IF 6.389
Xupeng Gao,Qiang Hu,Xin Li,Po Lu,Yuan Zhong,Xinyu Shen,William W. Yu,Min Lu,Zhennan Wu,Siyao Yu,Xue Bai,Yu Zhang
The dimension is a leading parameter in customization of unique optoelectronic properties of halide perovskite, while it is still challenging to achieve dimension control beyond the well-developed composition regulation-based strategy considering their intrinsic feature of ionic crystal. In this paper, ligands-directed confinement effect is emphasized in rendering the reduced-dimensional engineering of halide perovskite, and quasi-2D (OAm) 2 CsPb 2 Br 7 ( n = 2) nanosheets are obtained by introducing a large amount of metal ions. As a representation, with Mg 2+ participation, the initial adsorption of organic ligands (i.e., OA and OAm) to inorganic components (i.e., [PbBr 6 ] 4− ) is promoted, conferring a ligands-directed surface reconstruction to form the lamellar structure composed of alternate organic and inorganic layers. Namely, the inorganic–organic lamellar ensemble will play as a soft template, which effectively restricts the growth of [PbBr 6 ] 4− in the c -axis direction even after the Cs-OA injection, thus producing the anisotropic layered perovskite of (OAm) 2 CsPb 2 Br 7 from CsPbBr 3 scenario. Notably, such reduced-dimensional engineering enables a remarkable luminescence tailoring, of which the deep blue emission centered at 439 nm is achieved. In addition, benefiting from such universal strategy, the luminescence is also dependent on the species of introduced metal ions (e.g., Ca 2+ , Co 2+ , Sr 2+ , and Mn 2+ ).
✓ 已验证
产品关联
DOI
高影响因子
MOLECULES
·
2022
·Vol. 27
·期 4
·1220
·
IF 4.927
Yanmin Qin,Xiaopeng Chen,Linlin Wang,Xiaojie Wei,Weijian Nong,Xuejuan Wei,Jiezhen Liang
The solubility of dehydroabietic acid in (−)-α-pinene, p-cymene, (−)-β-caryophyllene, (−)-α-pinene + p-cymene, (−)-β-caryophyllene + p-cymene and (−)-α-pinene + (−)-β-caryophyllene were determined using the laser monitoring method at atmospheric pressure. The solubility of dehydroabietic acid was positively correlated with temperature from 295.15 to 339.46 K. (−)-α-pinene, p-cymene, and (−)-β-caryophyllene were found to be suitable for the solubilization of dehydroabietic acid. In addition, the non-random two liquid (NRTL), universal quasi-chemical (UNIQUAC), modified Apelblat, modified Wilson, modified Wilson–van’t Hoff, and λh models were applied to correlate the determined solubility data. The modified Apelblat model gave the minor deviation for dehydroabietic acid in monosolvents, while the λh equation showed the best result in the binary solvents. A comparative analysis of compatibility between solutes and solvents was carried out using Hansen solubility parameters. The thermodynamic functions of ΔsolH0, ΔsolS0, ΔsolG0were calculated according to the van’t Hoff equation, indicating that the dissolution was an entropy-driven heat absorption process. The Conductor-like Screening Model for Real Solvents (COSMO-RS) combined with an experimental value was applied to predict the reasonable solubility data of dehydroabietic acid in the selected solvents systems. The interaction energy of the dehydroabietic acid with the solvent was analyzed by COSMO-RS.Keywords:COSMO-RS;solubility;dehydroabietic acid
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Linwei Jiang,Yichen Pan,Jiancheng Zhang,Xin Chen,Xinwen Ye,Zhendong Li,Caicai Li,Qingfeng Sun
Replacing the sluggish oxygen evolution reaction (OER) with thermodynamically favorable urea oxidation reaction (UOR) is an appealing tactic in the energy-saving water splitting system. Herein, by a facile composite electrodeposition method, an electrocatalyst with Mo particles anchored on the Ni-P matrix (Mo/Ni-P) was fabricated and utilized for urea-assisted water electrolysis of hydrogen production. As expected, the urea-involved electrolytic cell with the as-obtained Mo/Ni-P served as both the anode and cathode merely needs a voltage of 1.55 V to sustain a current density of 50 mA cm −2 (0.16 V less than that of the conventional water splitting at 50 mA cm −2 ) and can maintain the stability for 12 h. Additionally, the solar-driven urea-assisted water electrolysis system was constructed under lab conditions and solar-hydrogen-electricity energy conversion processes were also simulated. Moreover, it was demonstrated that tungsten (W) particles can also serve as an accelerant for promotion both the hydrogen evolution reaction (HER) and UOR activity of pristine Ni-P. This work will present a facile method for rational integration of metal particles with Ni-P layer for highly efficient electrocatalysts applied in economic production of H 2 .
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）