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| 1 | Altering membrane structure to enhance water permeability and performance of anion exchange membrane fuel cell显示文摘Water management has been proven significant for enhancing both performance and durability of anion exchange membrane fuel cell. Besides searching new material, decreasing membrane thickness and modifying operation parameters, a simple and universal method of altering membrane structure is proposed in this work. Composite membranes made by unique processing method that includes both casting and electrospinning processes were compared with traditional casting membrane, all with the same thickness of 40 μm. Comparing to traditional casting membrane, the composite membrane put at proper position shows a higher water permeability, thus even more than 50% enhancement of the peak performance. | YANG Yue GAO XueQiang SONG Wei YU HongMei LI WenBin QI ManMan HUANG He WANG PengHao FAN ZhiXuan SHAO ZhiGang | 2021 | Science China(Technological Sciences)2021，64，2： | 1 |
| 2 | OShnscc:a novel user-friendly online survival analysis tool for head and neck squamous cell carcinoma based on RNA expression profiles and long-term survival information显示文摘Head and neck squamous cell carcinoma(HNSCC),as the most common type(>90%)of head and neck cancer,includes various epithelial malignancies that arise in the nasal cavity,oral cavity,pharynx,and larynx.In 2020,approximately 878000 new cases and 444000 deaths linked to HNSCC occurred worldwide(Sung et al.,2021).Due to the associated frequent recurrence and metastasis. | Guosen ZHANG Qiang WANG Xinlei QI Huimin YANG Xiaodong SU Manman YANG Chao JIANG Yang AN Hong Zheng LU Zhang Wan ZHU Jiancheng GUO Xiangqian GUO | 2022 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2022，23，3： | 1 |
| 3 | New insight into effect of potential on degradation of Fe-N-C catalyst for ORR显示文摘In recent years,Fe-N-C catalyst is particularly attractive due to its high oxygen reduction reaction(ORR)activity and low cost for proton exchange membrane fuel cells(PEMFCs).However,the durability problems still pose challenge to the application of Fe-N-C catalyst.Although considerable work has been done to investigate the degradation mechanisms of Fe-N-C catalyst,most of them are simply focused on the active-site decay,the carbon oxidation,and the demetalation problems.In fact,the 2e−pathway in the ORR process of Fe-N-C catalyst would result in the formation of H2O2,which is proved to be a key degradation source.In this paper,a new insight into the effect of potential on degradation of Fe-N-C catalyst was provided by quantifying the H2O2 intermediate.In this case,stability tests were conducted by the potential-static method in O2 saturated 0.1 mol/L HClO4.During the tests,H2O2 was quantified by rotating ring disk electrode(RRDE).The results show that compared with the loading voltage of 0.4 V,0.8 V,and 1.0 V,the catalysts being kept at 0.6 V exhibit a highest H2O2 yield.It is found that it is the combined effect of electrochemical oxidation and chemical oxidation(by aggressive radicals like H2O2/radicals)that triggered the highest H2O2 release rate,with the latter as the major cause. | Yanyan GAO Ming HOU Manman QI Liang HE Haiping CHEN Wenzhe LUO Zhigang SHAO | 2021 | Frontiers in Energy2021，15，2： | 0 |
| 4 | Characterization of bacterial communities during persistent fog and haze events in the Qingdao coastal region显示文摘Here,we report the characteristics of bacterial communities in aerosols with different particle sizes during two persistent fog and haze events in December of 2015 and 2016 in Qingdao,China.In the early stage of pollution,the accumulation of PM_(2.5) led to the accumulation of microorganisms,thus increasing the bacterial richness and diversity of fine particle sizes.With the persistence and aggravation of pollution,the toxic effect was strengthened,and the bacterial richness and diversity of each particle size decreased.When the particle concentration was highest,the richness and diversity were low for each particle size.Light haze had little influence on bacterial communities.The occurrence of highly polluted humid weather and heavy haze resulted in significant changes in bacterial community diversity,composition and structure,and air pollution exerted a greater influence than particle size on bacterial community structure.During persistent fog and haze events,with the increase of pollutants,bacteria associated with each particle size may be extensively involved in aerosol chemistry,but the degree of participation varies,which requires further study. | Manman Ma Bo Zhang Ye Chen Wenrong Feng Tiezhu Mi Jianhua Qi Wenshuai Li Zhigang Yu Yu Zhen | 2021 | Frontiers of Environmental Science & Engineering2021，15，3： | 0 |
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