2021-11-26 11:18

发表期刊:Environmental Science & Technology

论文题目:Associations between Novel and Legacy Per- and Polyfluoroalkyl Substances in Human Serum and Thyroid Cancer: A Case and Healthy Population in Shandong Province, East China

论文作者:Mei Liu, Gaoxin Zhang, Lingling Meng, Xu Han, Yingming Li, Yali Shi, An Li, Mary E. Turyk, Qinghua Zhang, and Guibin Jiang

发表日期:October 28, 2021

论文摘要:Per- and polyfluoroalkyl substances (PFASs) are widely detected in the environment and may cause adverse human health effects after exposure. Studies on the effect of PFASs on some health end points, including cancer, are still limited and show inconsistent results. In this research, 319 participants were recruited from Shandong Province, East China, consisting of patients with thyroid cancer and healthy controls. Seven novel and legacy PFASs were frequently detected (detection rate > 75%) in the serum samples of the participants. The concentrations of perfluorooctanoic acid (PFOA) were the highest in the case and control groups. Males showed significantly higher concentrations of PFASs than females. Exposure to PFASs was inversely associated with the risk of thyroid cancer. In the control group, we identified significant positive associations between PFASs and free thyroxine (FT4) as well as between PFOA and thyroid stimulating hormone (TSH) in females. A significant negative association between perfluorononanoic acid (PFNA) and triiodothyronine (T3) was observed in males. Our results suggest that exposure to certain PFASs could interfere with thyroid function. To our knowledge, this is the first case–control study demonstrating associations between novel and legacy PFASs in human and thyroid cancer.



论文题目:Commercialization-Driven Electrodes Design for Lithium Batteries: Basic Guidance, Opportunities, and Perspectives

论文作者:Chunyan Cao,Fanghua Liang,Wei Zhang,Hongchao Liu,Hui Liu,Haifeng Zhang,Jiajun Mao,Yanyan Zhang,Yu Feng,Xi Yao,Mingzheng Ge,Yuxin Tang

发表日期:October 27, 2021

论文摘要:Electrodes Design for Lithium Batteries
Sluggish mass transport and charge transfer dynamics are the main bottlenecks with increasing the mass loading multiple times to commercial level. Thus, in article number 2102233, Hongchao Liu, Mingzheng Ge, Yuxin Tang, and co-workers review the state-of-the-art developments on constructing commercialization-driven high-capacity electrodes with high mass loading, when comparing to the low-capacity electrodes with low mass loading.



论文题目:Anti-Inflammatory Nanotherapeutics by Targeting Matrix Metalloproteinases for Immunotherapy of Spinal Cord Injury

论文作者:Kui Shen,Guodong Sun,Leung Chan,Lizhen He,Xiaowei Li,Shuxian Yang,Baocheng Wang,Hua Zhang,Jiarun Huang,Minmin Chang,Zhizhong Li,Tianfeng Chen

发表日期:October 14, 2021

论文摘要:Nanotherapeutics for Spinal Cord Injury
In article number 2102102, Zhizhong Li, Tianfeng Chen, and co-workers design a polymer-based nano drug delivery system conjugating with MMPs-responsive molecule to target the injury site, regulate the polarization of macrophages and exert neuroprotective effects to promote locomotor recovery.



论文题目:2D Materials Densification via bridging layers


发表日期:October 10, 2021

论文摘要:MXenes are a family of layered two-dimensional metal carbides and nitrides with interesting properties that can be lost if voids are formed during synthesis. By using a sequential combination of hydrogen and covalent bonding agents, Wan et al. were able to densify the layered structure and remove voids. This procedure led to improvements in the mechanical strength and toughness, electrical conductivity, and shielding from electromagnetic interference.


发表期刊:Advanced Functional Materials

论文题目:Developing “Polymer-in-Salt” High Voltage Electrolyte Based on Composite Lithium Salts for Solid-State Li Metal Batteries

论文作者:Hao Li,Yunfei Du,Xiaomeng Wu,Jingying Xie,Fang Lian,

发表日期:October 08, 2021

论文摘要:Solid Electrolytes
To develop electrolytes for high energy density solid-state batteries, in article number 2103049, Fang Lian and co-workers propose a novel “polymer-in-salt” solid electrolyte (PISE) via supramolecular interaction and coordination between PME polymers and LiPVFM/LiTFSI composite Li salts. The PISE possesses superior lithium ion transference number, high ionic conductivity, excellent electrochemical stability as well as improved interfacial compatibility with electrodes, thus enabling excellent cycle performance of high voltage cathodes in solid-state batteries.


发表期刊:Journal of Energy Chemstry 能源化学

论文题目:Efficient catalytic conversion of jatropha oil to high grade biofuel on Ni-Mo2C/MCM-41 catalysts with tuned surface properties

论文作者:Xiangze Du, Keyao Zhou, Linyuan Zhou, Xiaomei Lei, Huiru Yang, Dan Li, Changwei Hu

发表日期:October, 2021

论文摘要:The activity of Mo2C-based catalyst on vegetable oil conversion into biofuel could be greatedly promoted by tuning the carbon content, while its modification mechanism on the surface properties remained elusive. Herein, the exposed active sites, the particle size and Lewis acid amount of Ni-Mo2C/MCM-41 catalysts were regulated by varying CH4 content in carbonization gas. The activity of Ni-Mo2C/MCM-41 catalysts in jatropha oil (JO) conversion showed a volcano-like trend over the catalysts with increasing CH4 content from 15% to 50% in the preparation process. The one prepared by 25% CH4 content (Ni-Mo2C(25)/MCM-41) exhibited the outstanding catalytic performance with 83.9 wt% biofuel yield and 95.2% C15–C18 selectivity. Such a variation of activity was ascribed to the most exposed active sites, the smallest particle size, and the lowest Lewis acid amount from Ni0 on the Ni-Mo2C(25)/MCM-41 catalyst surface. Moreover, the Ni-Mo2C(25)/MCM-41 catalyst could also effectively catalyze the conversion of crude waste cooking oil (WCO) into green diesel. This study offers an effective strategy to improve catalytic performance of molybdenum carbide catalyst on vegetable oil conversion.


发表期刊:Energy&Environmental Materials 能源与环境材料

论文题目:Significant performance enhancement of all-inorganic CsPbBr3 perovskite solar cells enabled by Nb-doped SnO2 as effective electron transport layer

论文作者:Ruxin Guo,Yan Zhao,Yongshang Zhang,Quanrong Deng,Yonglong Shen,Wei Zhang,Guosheng Shao

发表日期:October, 2021

论文摘要:All-inorganic CsPbBr3-based perovskite solar cells (PSCs) have attracted great attention because of their high chemical and thermal stabilities in ambient air. However, the short-circuit current density (Jsc) of CsPbBr3-based PSCs is inadequate under solar illumination because of the wide bandgap, inefficient charge extraction and recombination loss, leading to lower power-conversion efficiencies (PCEs). It is envisaged that in addition to narrowing the bandgap by alloying, Jsc of the PSCs could be enhanced by effective improvement of electron transportation, suppression of charge recombination at the interface between the perovskite and electron transporting layer (ETL), and tuning of the space charge field in the device. In this work, Nb-doped SnO2 films as ETLs in the CsPbBr3-based PSCs have been deposited at room temperature by high target utilization sputtering (HiTUS). Through optimizing the Nb doping level alone, the Jsc was increased by nearly 19%, from 7.51 to 8.92 mA·cm−2 and the PCE was enhanced by 27% from 6.73% to 8.54%. The overall benefit by replacing the spin-coated SnO2 with sputtered SnO2 with Nb doping was up to 39% increase in Jsc and 62% increase in PCE. Moreover, the PCE of the optimized device showed negligible degradation over exposure to ambient environment (T ˜ 25 °C, RH˜45%), with 95.4% of the original PCE being maintained after storing the device for 1200 h.


发表期刊:Nature Chemistry

论文题目:Ethylene/ethane separation in a stable hydrogen-bonded organic framework through a gating mechanism

论文作者:Yisi Yang, Libo Li, Rui-Biao Lin, Yingxiang Ye, Zizhu Yao, Ling Yang, Fahui Xiang, Shimin Chen, Zhangjing Zhang, Shengchang Xiang, Banglin Chen

发表日期:October, 2021

论文摘要:Porous materials are very promising for the development of cost- and energy-efficient separation processes, such as for the purification of ethylene from ethylene/ethane mixture—an important but currently challenging industrial process. Here we report a microporous hydrogen-bonded organic framework that takes up ethylene with very good selectivity over ethane through a gating mechanism. The material consists of tetracyano-bicarbazole building blocks held together through intermolecular CN···H–C hydrogen bonding interactions, and forms as a threefold-interpenetrated framework with pores of suitable size for the selective capture of ethylene. The hydrogen-bonded organic framework exhibits a gating mechanism in which the threshold pressure required for guest uptake varies with the temperature. Ethylene/ethane separation is validated by breakthrough experiments with high purity of ethylene (99.1%) at 333 K. Hydrogen-bonded organic frameworks are usually not robust, yet this material was stable under harsh conditions, including exposure to strong acidity, basicity and a variety of highly polar solvents.







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