Journal of Energy Chemistry
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2025
·
IF 14.9
Kangming Ou,Jiale Liu,Junwei Xiang,Chaoyang Wang,Jiayu Xie,Xiaoyu Li,Yanjie Cheng,Qiaojiao Gao,Lingya Gao,Anyi Mei,Yang Zhou,Hongwei Han
The stacking of multiple defect-rich grain boundaries (GBs) along the long transportation path (∼3 μm) of charge carriers in printable mesoscopic perovskite solar cells (p-MPSCs) impedes their power conversion efficiency (PCE). Organic Lewis bases are widely utilized for defect passivation at GBs, but how their passivation efficiency affects energy loss remains unclear. Here we employed triphenylphosphine (TPP) and triphenylphosphine oxide (TPPO) as the model passivators in p-MPSCs. TPPO has a more negatively charged center than TPP, which enables its stronger coordination with one of the most common and detrimental defects at the GBs—undercoordinated lead. When added into the perovskite with the same ratio, TPPO passivates defects more significantly and thus less TPPO remaining inactive compared with TPP. Inactive organic passivators accumulated at the GBs could impose barriers to charge carrier transportation. Indeed, TPPO improves the device performance more significantly with a champion PCE of 20.54% achieved. Besides, the TPPO devices demonstrate excellent stability with 95% of initial PCE remaining after 600 h of maximum power point tracking at (55 ± 5)°C.
研究领域:
材料科学
·
能源科学
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2020
·
IF 2.369
Xiaoda Wang,Lumin Han,Weican Wang,Ling Li,Ting Qiu
The enzymatic reaction–distillation coupling process is a promising technology to realize the chiral resolution of (R/S)-1-phenylethanol with ethyl butyrate and ethanol as acyl donor and byproduct, respectively. In order to design such a coupling process, the vapor–liquid equilibrium (VLE) data are necessary. However, these data were incomplete in literatures. In this work, the isobaric VLE experiments were conducted at 101.3 kPa for the binary systems of 1-phenylethanol + ethyl butyrate, 1-phenylethanol + ethanol, 1-phenylethyl butyrate + ethyl butyrate, 1-phenylethyl butyrate + ethanol, and 1-phenylethyl butyrate +1-pheny ethanol. Additionally, the saturated vapor pressure of 1-phenylethyl butyrate was measured in the temperature range 420–500 K and correlated with the Antoine equation. Both the Non-Random Two Liquid (NRTL) and Wilson models were used for the correlation of experimental VLE data. Both models showed satisfactory accuracy, although the Wilson model performed slightly better than the NRTL model. This work would provide important thermodynamic information for the design of enzymatic reaction–distillation coupling process to realize the chiral resolution of (R/S)-1-phenylethanol.
研究领域:
化学工程
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生物化学
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产品关联
DOI
高影响因子
ENVIRONMENTAL POLLUTION
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2019
·
IF 5.714
Rui Hou,Xiaoshan Luo,Chuangchuang Liu,Lihua Zhou,Junlin Wen,Yong Yuan
Triphenyl phosphate (TPHP) is one of the major organophosphate esters (OPEs) with increasing consumption. Considering its largely distribution and high toxicity in aquatic environment, it is important to explore an efficient treatment for TPHP. This study aimed to investigate the accelerated degradation of TPHP in a three-electrode single chamber bioelectrochemical system (BES). Significant increase of degradation efficiency of TPHP in the BES was observed compared with open circuit and abiotic controls. The one-order degradation rates of TPHP (1.5 mg L −1 ) were increased with elevating sodium acetate concentrations and showed the highest value (0.054 ± 0.010 h −1 ) in 1.0 g L −1 of sodium acetate. This result indicated bacterial metabolism of TPHP was enhanced by the application of micro-electrical field and addition acetate as co-substrates. TPHP could be degraded into diphenyl phosphate (DPHP), hydroxyl triphenyl phosphate (OH-TPHP) and three byproducts. DPHP was the most accumulated degradation product in BES, which accounted more than 35.5% of the initial TPHP. The composition of bacterial community in BES electrode was affected by the acclimation by TPHP, with the most dominant bacteria of Azospirillum , Petrimonas , Pseudomonas and Geobacter at the genera level. Moreover, it was found that the acute toxic effect of TPHP to Vibrio fischeri was largely removed after the treatment, which revealed that BES is a promising technology to remove TPHP threaten in aquatic environment.
研究领域:
环境工程
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生物技术
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微生物学
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水处理
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DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
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2025
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IF 11.3
Yiqun Song,Ting Xu,Hongchang Zhang,Shuangqing Hu,Sheng Wei,Miao Cao,Huan Wang,Daqiang Yin
Vision is the primary sensory function for most animals and is also a sensitive toxic target of environmental pollutants. A new class of organophosphate flame retardants (OPFRs) termed emerging OPFRs (eOPFRs) with limited toxicological information is rapidly developed into the substitutes of traditional OPFRs. In this study, we investigated the visual toxicity of triphenyl phosphate (TPHP, one traditional OPFR) and cresyl diphenyl phosphate (CDP, one emerging OPFR) on zebrafish larvae at environmentally relevant concentrations (3 and 30 nM). After 5 days of exposure, an opposite toxicity was found between the two OPFRs, manifested in the light perception and the gene expressions of visual opsins. CDP caused a weak reaction to light and overall inhibition of opsin expression (0.7- to 0.8-fold) in the larvae, while TPHP tended to stimulate these events (1.2- to 2.4-fold). Besides, we identified a key transcription factor, tbx2a, that was significantly disrupted in both OPFRs’ exposure. The differing ways in which both OPFRs bind to Tbx2a may be the reason behind their opposite effects. These findings provided new clues for the toxicological mechanisms of OPFRs and revisited the question regarding safe substitutes for those emerging contaminants.
研究领域:
环境毒理学
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发育生物学
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产品关联
DOI
PubMed
高影响因子
ORGANIC ELECTRONICS
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2014
·
IF 3.676
Chunyu Zhang,Zhanchen Cui,He Wang,Donghang Yan,Yao Li,Zuosen Shi,Aihua Wu,Zhuo Zhao,Shengji Luan
Novel polyurethane containing terphenyl groups were designed and synthesized as gate insulators to induce the crystallization of p-sexiphenyl(p-6P) for organic thin-film transistors (OTFTs). Different sizes and shapes of p-6P grains were measured by atomic force microscopy (AFM), and results showed that the large size of p-6P grain can improve the performance of OTFTs. About 900 nm thick films can be easily fabricated by spin-coating under ambient conditions, followed by curing at UV irradiation for 10 min. OTFTs with this film as gate insulator were found to have good processability, a high charge-carrier mobility of 1.1 cm 2 /V s, a threshold voltage of −25 V, and an on/off current ratio >10 5 . The result indicated that this material is a promising candidate for the exploration of devices using OTFTs.
研究领域:
材料科学
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电子工程
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产品关联
DOI
高影响因子
CURRENT MICROBIOLOGY
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2017
·Vol. 75
·期 5
·565-573
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IF 1.322
Zhang Xin-guo,Liu Jin-wen,Tang Peng,Liu Zi-yu,Guo Guang-Jun,Sun Qiao-Yun,Yin Jian-jun
Adenosine deaminase (ADA) is an enzyme widely distributed from bacteria to humans. ADA is known as a potential therapeutic target for the treatment of lymphoproliferative disorders and cancer. Endophytes are endosymbionts, often bacteria or fungi, which live within plant tissues and internal organs or intercellular space. Endophytes have a broad variety of bioactive metabolites that are used for the identification of novel natural compounds. Here, 54 morphologically distinct endophyte strains were isolated from six plants such as Peganum harmala Linn., Rheum officinale Baill., Gentiana macrophylla Pall., Radix stephaniae tetrandrae, Myrrha , and Equisetum hyemale Linn. The isolated strains were used for the search of ADA inhibitors that resulted in the identification of the strain with the highest inhibition activity, Aspergillus niger sp. Four compounds were isolated from this strain using three-step chromatography procedure, and compound 2 was determined as the compound with the highest inhibition activity of ADA. Based on the results of 1 H and 13 C NMR spectroscopies, compound 2 was identified as 3-(4-nitrophenyl)-5-phenyl isoxazole. We showed that compound 2 was a new uncompetitive inhibitor of ADA with high cytotoxic effect on HepG2 and SMCC-7721 cells (the IC 50 values were 0.347 and 0.380 mM, respectively). These results suggest that endophyte strains serve as promising sources for the identification of ADA inhibitors, and compound 2 could be an effective drug in the cancer treatment.
研究领域:
药理学
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生物化学
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肿瘤学
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DOI
PubMed
高影响因子
Journal of Sulfur Chemistry
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2020
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IF 1.963
Lin Yan,Jun Yang,Xu-Feng Liu,Yu-Long Li,Xing-Hai Liu,Zhong-Qing Jiang
In this article, two new binuclear iron compounds [Fe2(CO)5PPh(C6H11)2{µ-SCH2CH(CH2CH3)S}] (2) and [Fe2(CO)5PPh2(C6H11){µ-SCH2CH(CH2CH3)S}] (3), which can be regarded as the biomimics for the active site of [FeFe]-H2ases, have been synthesized by CO exchange of compound [Fe2(CO)6{μ-SCH2CH(CH2CH3)S}] (1) with cyclohexyldiph-enylphosphine or dicyclohexylphenylphosphine and their structures have been confirmed by spectroscopy, elemental analysis, and X-ray crystallography. They also exhibited good electrocatalytic activities for the generation of H2.
研究领域:
无机化学
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材料科学
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生物无机化学
✓ 已验证
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2015
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IF 2.037
Chunlin Li,Qinbo Wang,Binwei Shen,Zhenhua Xiong,Chuxiong Chen
The mole fraction solubilities of 5,10,15,20-tetraphenylporphyrin (TPP) and 5,10,15,20-tetra(p-chlorophenyl)porphyrin (p-ClTPP) in binary system N,N-dimethylformamide (DMF) + water solvent mixtures were measured at atmospheric pressure by using the static method. The temperature and effects of mole fraction of DMF in the solvent mixtures on solubility were studied. The results show that the solubilities of TPP and p-ClTPP increase with the increasing temperature for a certain solvent composition, and the solubilities show a maximum in pure DMF, then the solubilities decrease when the water was added to the system. The experimental data were correlated with modified Apelblat equation. The solubilities calculated by the model were in good agreement with experimental observations. Thermodynamic parameters such as dissolution enthalpy, isobaric heat capacity and Gibbs energy were obtained from the solubility data by using the Clark–Glew equation together with the modified Apelblat equation. The result demonstrated that the dissolving process of TPP and p-ClTPP in DMF + water solvent mixtures is endothermic and not spontaneous.
研究领域:
化学
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物理化学
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产品关联
DOI
高影响因子
Food Bioscience
·
2025
·
IF 5.9
Shuai Wang,Jiayang Li,Cong Xie,Wanhui Chen,Huajie Feng,Wenying He
Our previous study found that 1-(4-bromophenyl)-5-phenyl-1H-1,2,3-triazole (BPT) exhibited very low toxicity and higher biology activity. In the present study, BPT was used to investigate its mechanism against Colletotrichum gloeosporioides in mango by chemical proteomics and chemicobiological methods. The experimental results of some phenotypic traits and cytotoxicity indicated that there are some changes in permeability of the cell membranes and BPT has fungistatic activity with lower cytotoxicity. Next, a biotin probe named BPTN with a higher activity (EC 50 value of 11.08 mg/L) than that of BPT(EC 50 value of 14.13 mg/L) was designed and synthesized by the chemical proteomics approach. The major differentially expressed proteins between BPT or BPTN and Colletotrichum gloeosporioides were identified and analyzed by Matrix-assisted laser desorption time-of-flight mass spectrometry (MALDI-TOF-MS) and bioinformatics. The results indicated that there are 25 differentially expressed proteins in Colletotrichum gloeosporioides under BPT intervention, and 29 target proteins in Colletotrichum gloeosporioides captured by BPTN. For BPTN-anthracnose system, the protein No. 8 belonged to cytochrome P450 proteins (CYP) family can be taken as a target protein of BPTN, which confirmed by bioinformatics analysis. Further, a classic fungal target protein of triazoles, sterol 14α-demethylase (CYP51) was used to verify the interaction in the presence of BPT by various spectroscopic and molecular docking methods. The results showed that BPT exhibited strong interactions with CYP51 and it was predominantly driven by hydrophobic forces and hydrogen bonds. The present study has significant theoretical and practical implications for the development of novel 1,2,3-triazole antifungal agents.
研究领域:
植物病理学
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药理学
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分子生物学
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2019
·Vol. 29
·期 50
·1906587
·
IF 15.621
Guangjun Zhang,Jirui Feng,Xiaopeng Xu,Wei Ma,Ying Li,Qiang Peng
A series of perylene diimide (PDI) derivatives, TPP-PDI , TPO-PDI , and TPS-PDI , are developed for nonfullerene polymer solar cells (NF-PSCs) by flaking three PDI skeletons around 3D central cores with different configurations and electronic states, such as triphenylphosphine (TPP), triphenylphosphine monoxide (TPO), and triphenylphosphine sulfide (TPS). These small-molecule acceptors have a “three-wing propeller” structure due to their similar backbones. By changing the electron density of phosphorus atoms through oxidation and sulfuration, the “folding-back” strength is decreased, resulting in a less twisted molecular conformation. The stronger electron-withdrawing ability of the oxygen atom affords TPO-PDI the least twisted conformation, which enhances the crystallinity of this complex. NF-PSCs based on PTTEA : TPO-PDI exhibit a high power conversion efficiency (PCE) of 8.65%. Ultimately, the joint “molecular lock” effect arising from O H⋅⋅⋅F and O H⋅⋅⋅OP supramolecular interactions is achieved by introducing 4,4′-biphenol as an additive, which successfully promotes fibril-like phase separation and blend morphology optimization to generate the highest PCE of 11.01%, which is currently the highest value recorded for NF-PSCs based on PDI acceptors.
研究领域:
材料科学
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有机电子学
·
高分子化学
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纳米技术
·
光化学
✓ 已验证
DOI
高影响因子
POLYMER
·
2024
·
IF 4.1
Shengqiang Wang,Zhenbo Peng,Yanhua Huang,Mingquan Zhu,Yayun Liu,Yong Zhang
Phenyl-containing polysiloxanes have better thermal stability, low-temperature flexibility, and room-temperature damping performance than polydimethylsiloxanes. Poly [dimethylsiloxane- co -methyl (phenyl)siloxane] and poly (dimethylsiloxane- co -diphenylsiloxane) were synthesized through a bulk copolymerization of octamethylcyclotetrasiloxane and methylphenylcyclosiloxane mixture or octaphenylcyclotetrasiloxane, and the structure and properties of the copolysiloxanes were comparatively studied. The phenyl content in poly [dimethylsiloxane- co -methyl (phenyl)siloxane] can be as high as 50 mol%. With the increment of the phenyl content, the thermal stability of the copolysiloxanes is dramatically improved as evaluated by thermal gravimetric analysis. At a given phenyl content, poly [dimethylsiloxane- co -methyl (phenyl)siloxane] has higher thermal stability than poly (dimethylsiloxane- co -diphenylsiloxane). The former is more difficult to crystalline at low temperatures and has lower room temperature viscosity than the latter as confirmed by differential scanning calorimetry and rotational rheometer. The copolysiloxanes is mixed with hydrogen-containing polysiloxane and silica, and vulcanized at elevated temperature to get copolysiloxane composites with good damping properties, oil resistance, and low-temperature resistance. This study not only enriches the fundamental academic research on functional polysiloxanes, but also provides useful technical references for practical applications of phenyl silicone rubber.
研究领域:
高分子科学
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材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2019
·Vol. 26
·期 25
·25445-25451
·
IF 2.914
Yi Xianliang,Wang Jianfeng,Li Zhaochuan,Zhang Zherui,Chi Tongtong,Guo Miao,Li Wentao,Zhou Hao
The effect of polystyrene (PS) particles on the toxicity of triphenyltin (TPT) to the marine diatom Skeletonema costatum was investigated. The 0.1-μm PS particles attached to the cell walls of S. costatum but did not cause adverse effects on the growth of the diatom. The adsorption of TPT to PS particles was negligible in seawater systems, but the presence of 0.1-μm PS significantly reduced the bioavailable concentrations of TPT in f/2-Si medium, indicating a potential three-way interaction between TPT, PS particles, and components of f/2-Si medium. The adsorption of TPT to PS of smaller size (i.e., 0.1 μm) was stronger than that of PS of larger size (i.e., 5 μm), which was probably attributed to larger surface areas of smaller PS particles. The presence of PS could reduce the toxicity of TPT. IC 50 values of TPT increased from 0.56 to 0.85 and 0.71 μg/L at the presence of 20 mg/L 0.1-μm PS and 5-μm PS, respectively. The overall results of this study profiled the combined toxic effects of PS and TPT on marine phytoplankton species and highlighted the difference in adsorption of organic pollutants by microplastics in different ambient mediums.
研究领域:
海洋生物学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）