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| 1 | Promoted conversion of polysulfides by MoO_2 inlaid ordered mesoporous carbons towards high performance lithium-sulfur batteries显示文摘As polar materials, transition-metal oxides have shown great potentials to improve the adsorption of lithium polysulfides in lithium-sulfur batteries. Herein, a MoO_2-ordered mesoporous carbon (M-OMC)hybrid was designed as the sulfur host, in which MoO_2 is inlaid on the surface of ordered mesoporous carbons that can store active materials and provide fast electron transfer channel due to its ordered pore structure. The MoO_2 can effectively prevent the migration of polysulfides through the chemical adsorption and promote the conversion of polysulfides towards Li-sulfur battery. | Yawei Chen Shuzhang Niu Wei Lv Chen Zhang Quanhong Yang | 2019 | Chinese Chemical Letters2019，30，2： | 4 |
| 2 | Levels,distributions,and sources of legacy and novel per-and perfluoroalkyl substances(PFAS)in the topsoil of Tianjin,China显示文摘Soil is a major sink for per-and perfluoroalkyl substances(PFAS),wherein PFAS may be transferred through the food chain to predators at upper trophic levels,which poses a threat to human health.Herein,the concentrations and distributions of legacy and novel PFAS in topsoil samples from different functional areas in Tianjin were comprehensively investigated.Seventeen PFAS congeners were identified,with concentrations ranging from 0.21 ng/g to 5.35 ng/g,with a mean concentration of 1.25 ng/g.The main PFAS in the topsoil was perfluorooctanoic acid(PFOA).6:2 chlorinated polyfluorinated ether sulfonate(6:2 ClPFESA;C8)were the major sources(43.4%),followed by food packaging as well as coating materials(25.5%).In addition,Spearman correlation analysis and the structural equation model showed that population density significantly impacted the PFAS distribution in the topsoil of Tianjin. | Donghui Ma Huifang Zhong Jitao Lv Yawei Wang Guibin Jiang | 2022 | Journal of Environmental Sciences2022，34，2： | 3 |
| 3 | The occurrence of per-and polyfluoroalkyl substances(PFASs) in fluoropolymer raw materials and products made in China显示文摘Perfluorooctanoic acid(PFOA), its salts, and related compounds were listed as new persistent organic pollutants by the Stockholm Convention in 2019.In this study, the occurrence of residues of PFOA and other per-and polyfluoroalkyl substances(PFASs) in raw materials and fluoropolymer products from the Chinese fluoropolymer industries are reported for the first time.The PFOA concentrations in raw materials and fluoropolymer products were in the range of 6.7 to 1.1 × 10^(6) ng/g, and | Lingyi Meng Boyu Song Yao Lu Kun Lv Wei Gao Yawei Wang Guibin Jiang | 2021 | Journal of Environmental Sciences2021，33，9： | 2 |
| 4 | Polybrominated diphenyl ethers and organochlorine pesticides in sewage sludge of wastewater treatment plants in China显示文摘 | WANG Yawei ZHANG Qinghua LV Jianxia | 2007 | Chemosphere2007，68，9： | 1 |
| 5 | Presence of organophosphate flame retardants(OPEs)in different functional areas in residential homes in Beijing,China显示文摘The production and application of organophosphate esters(OPEs)have dramatically increased in recent years due to their use as a replacement for brominated flame retardants.In this study,13 OPEs(∑_(13)OPEs)were analyzed in indoor air samples from kitchens and living rooms in 14 residential homes in Beijing,China.The concentrations of ∑_(13)OPEs in kitchen air samples(mean:13 ng/m^(3))were significantly(p<0.05)higher than in living room air samples(5.0 ng/m^(3)).In addition,paired window surface organic film samples were collected and analyzed to investigate film-air partitioning,exhibiting a mean concentration of ∑_(13)OPEs of 4100 ng/m^(2).The congener profiles showed that tris(2-chloroisopropyl)phosphate(TCPP)was the predominant compound in both window film samples(48%)and the corresponding indoor air sample(56%).The estimated daily intakes(EDI)of OPEs via indoor air inhalation were 2.8 and 1.4 ng/kg/day for infants and adults,respectively,both of which are below the reference dose values(RfDs).Overall,these findings indicate that OPEs in the indoor air environment of residential homes in Beijing are not likely to pose a health risk to the general population. | Kun Lv Lu Bai Boyu Song Xindong Ma Minmin Hou Jie Fu Yali Shi Yawei Wang Guibin Jiang | 2022 | Journal of Environmental Sciences2022，34，5： | 1 |
| 6 | The thermal transformation mechanism of chlorinated paraffins:An experimental and density functional theory study显示文摘The increasing production and usage of chlorinated paraffins(CPs) correspondently increase the amount of CPs that experience thermal processes. Our previous study revealed that a significant amount of medium-chain chlorinated paraffins(MCCPs), short-chain chlorinated paraffins(SCCPs) as well as aromatic and chlorinated polycyclic aromatic hydrocarbons(Cl-PAHs) were formed synergistically during the thermal decomposition of CP-52(a class of CP products).However, the transformation mechanisms of CP-52 to these compounds are still not very clear.This article presents a mechanistic analysis on the decomposition of CP-52 experimentally and theoretically. It was found that CP-52 initially undergoes dehydrochlorination and carbon chain cleavage and it transformed into chlorinated and unsaturated hydrocarbons. Cyclization and aromatization were the most accessible pathways at low temperatures(200–400°C), both of which produce mostly aromatic hydrocarbons. As the temperature exceeds 400°C, the hydrocarbons could decompose into small molecules, and the subsequent radical-induced reactions become the predominant pathways, leading to the formation of Cl-PAHs. The decomposition of CP-52 was investigated by using density functional theory and calculations demonstrating the feasibility and rationality of PCB and PCN formation from chlorobenzene. The results improve the understanding of the transformation processes from CP-52 to SCCPs and Cl-PAHs as well as provide data for reducing their emissions during thermal-related processes. | Shanzhi Xin Wei Gao DANDan Cao Kun Lv Yaquan Liu Chunyan Zhao Yawei Wang Guibin Jiang | 2019 | Journal of Environmental Sciences2019，31，1： | 1 |
| 7 | Polybrominated diphenyl ethers and organochlorine pesticides in sewage sludge of wastewater treatment plants in China显示文摘 | Yawei Wang Qinghua Zhang Jianxia Lv An Li Hanxia Liu Guogang Li Guibin Jiang | 2007 | Chemosphere2007，，9： | 1 |
| 8 | Co-activation for enhanced K-ion storage in battery anodes显示文摘The relative natural abundance of potassium and potentially high energy density has established potassium-ion batteries as a promising technology for future large-scale global energy storage.However,the anodes'low capacity and high dis charge platform lead to low energy density,which impedes their rapid development.Herein,we present a possible co-activation mechanism between bismuth(Bi)and tin(Sn)that enhances K-ion storage in battery anodes.The co-activated Bi-Sn anode delivered a high capacity of634 mAh g^(-1),with a discharge plateau as low as 0.35 V,and operated continuously for 500 cycles at a current density of 50 mA g^(-1),with a high Coulombic efficiency of 99.2%.This possible co-activation strategy for high potassium storage may be extended to other Na/Zn/Ca/Mg/Al ion battery technologies,thus providing insights into how to improve their energy storage ability. | Yanhong Feng Yawei Lv Hongwei Fu Mihir Parekh Apparao MRao He Wang Xiaolin Tai Xianhui Yi Yue Lin Jiang Zhou Bingan Lu | 2023 | National Science Review2023，10，7： | 0 |
| 9 | Van der Waals heterostructure tunnel FET with potential modulation beyond junction region显示文摘Dear editor,State-of-the-art semiconductor technology is approaching the atomic scale,greatly boosting the switching behavior of transistors towards the physical limit of the thermionic emission mechanism[1,2].A fundamental revolution is needed to break this limit and reduce power dissipation.Owing to the band-to-band tunneling mechanism. | Wenjing QIN Yawei LV Zhen XIA Lei LIAO Changzhong JIANG | 2022 | Science China(Information Sciences)2022，65，10： | 0 |
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