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| 1 | Unstable Ni leaching in MOF-derived PtNi-C catalyst with improved performance for alcohols fuel electro-oxidation显示文摘Significance of unstable species leaching was for the first time demonstrated on MOF-derived catalysts by taking PtNi-C as an example,that was instructive for the relevant catalyst fabrication and performance study.PtNi-C catalyst was synthesized by combining Pt nanoparticles with Ni-BTC after annealing in the tube furnace and the unstable Ni species can be easily leached out in nitric acid,and the stable PtNi nanoparticles trapped in the graphite carbon layer were obtained.The greatly improved catalytic ability for alcohol fuels oxidation was verified by comparing the fresh and acid leached catalysts in terms of the high peak current density,specific and mass activity and rapid charge transfer kinetics and high catalytic stability.The current work guides the importance of unstable assistant promoter removal for the MOF derived catalysts. | Bo Fang Zong Liu Yufei Bao Ligang Feng | 2020 | Chinese Chemical Letters2020，31，9： | 3 |
| 2 | Reduced macular inner retinal thickness and microvascular density in the early stage of patients with dysthyroid optic neuropathy显示文摘Background:The goal was to investigate changes of the inner intra-retinal layer thicknesses and retinal capillary density(RCD)around the macula in thyroid-associated ophthalmopathy(TAO)patients with or without dysthyroid optic neuropathy(DON).Methods:Forty-four TAO patients including 23 non-DON and 21 DON patients,and 38 healthy participants were enrolled.Spectral domain optical coherence tomography equipped with Angiovue was used to obtain threedimensional retinal thickness maps and microvascular images of the superficial and deep retinal capillary layers(SRCL and DRCL,respectively)around the macula.Quantitative analyses were performed using a custom automated algorithm.Results:The thicknesses of the nerve fiber layer,ganglion cell layer+inner plexiform layer,and ganglion cell complex(GCC)as well as the RCDs in the SRCL and DRCL in both TAO groups were significantly decreased compared to the controls.In addition,the RCDs in DRCL of the DON group were further decreased compared to the non-DON group.GCC thickness in both TAO groups was positively correlated with the RCDs of the SRCL in the total annular zone and in the temporal,inferior,and nasal sectors.The areas under the receiver operating characteristic curves for the GCC thickness combined with the RCD were generally larger than those of each single indicator.Conclusions:Thinned inner intra-retinal layers and decreased RCDs in the TAO patients without DON revealed that morphological changes might precede visual dysfunction.The composite index of the retinal structure and the microvascular density might be valuable in the diagnosing,monitoring,and intervention for early DON. | Yufei Wu Yunhai Tu Chaoming Wu Lulu Bao Jianhua Wang Fan Lu Meixiao Shen Qi Chen | 2020 | Eye and Vision2020，7，1： | 3 |
| 3 | PdNi/N-doped graphene aerogel with over wide potential activity for formic acid electrooxidation显示文摘Anti-CO poisoning ability is significant in formic acid oxidation in the fuel cell technique.Herein,Pd Ni alloy supported on N-doped graphene aerogel(Pd Ni/GA-N)was found to have catalytic ability toward formic acid electrooxidation over a wide potential range because of the improved anti-CO poisoning ability.This catalyst was fabricated by simple freeze-drying of mixture solution of graphene aerogel,polyvinylpyrrolidone,Pd^(2+)and Ni^(2+)and the subsequent thermal annealing reduction approach in the N2/H2 atmosphere.Pd-Ni alloy particles anchored over the folding N-doped graphene surface with a porous hierarchical architecture structure in the 3 D directions.It showed the catalytic performance of its maximum mass activity of 836 m A mg^(-1)in a broad potential range(0.2-0.6 V)for formic acid oxidation.The CO stripping experiment demonstrated its largely improved anti-CO poisoning ability with the peak potential of 0.67 V,approximately 60 and 40 m V less compared to those of Pd/GA-N and Pd/C samples.The high anti-CO poisoning ability and strong electronic effect resulting from the interaction between the3 D GA-N support and the Pd-Ni alloy makes it a promising catalyst for application in direct formic acid fuel cells. | Yufei Bao Meng Zha Pengliang Sun Guangzhi Hu Ligang Feng | 2021 | Journal of Energy Chemistry2021，30，8： | 3 |
| 4 | Thermodynamic analysis for a chemically recuperated scramjet显示文摘Endothermic hydrocarbon fuel is regarded as an optimal fuel for a scramjet with regenerative cooling,which provides extra cooling through endothermic chemical conversion to avoid the severly limited cooling capacity when conventional fuels are adopted for cooling.Although endothermic cooling is proposed from the view point that the heat sink of a conventional fuel is insufficient,the heat-absorbing through endothermic chemical reaction is actually a chemical recuperation process because the wasted heat dissipated from the engine thermal structure is recovered through the endothermic chemical reaction.Therefore,the working process of a scramjet with endothermic hydrocarbon fuel cooling is a chemical recuperative cycle.To analyze the chemical recuperative cycle of a chemically recuperated scramjet engine,we defined physical and chemical recuperation effectivenesses and heating value increment rate,and derived engine performance parameters with chemical recuperation.The heat value benefits from both physical and chemical recuperations,and it increases with the increase in recuperation effectiveness.The scramjet performance parameters also increase with the increase in chemical recuperation effectiveness.The increase in chemical recuperation effectiveness improves both the performances of the fuel cooling system and the combustion system.The results of analysis prove that the existence of a chemical recuperation process greatly improves the performance of the whole scramjet. | QIN Jiang BAO Wen ZHANG SiLong SONG YuFei YU DaRen | 2012 | Science China(Technological Sciences)2012，55，11： | 2 |
| 5 | Fiber fabry-perot interferometers with very low polarization sensitivity显示文摘 | Hsu K Miller C M Bao Yufei | 1994 | Applied Optics1994，33，28： | 1 |
| 6 | Reduced macular inner retinal thickness and microvascular density in the early stage of patients with dysthyroid optic neuropathy显示文摘Background:The goal was to investigate changes of the inner intra-retinal layer thicknesses and retinal capillary density(RCD)around the macula in thyroid-associated ophthalmopathy(TAO)patients with or without dysthyroid optic neuropathy(DON).Methods:Forty-four TAO patients including 23 non-DON and 21 DON patients,and 38 healthy participants were enrolled.Spectral domain optical coherence tomography equipped with Angiovue was used to obtain three-dimensional retinal thickness maps and microvascular images of the superficial and deep retinal capillary layers(SRCL and DRCL,respectively)around the macula.Quantitative analyses were performed using a custom automated algorithm.Results:The thicknesses of the nerve fiber layer,ganglion cell layer and inner plexiform layer,and ganglion cell complex(GCC)as well as the RCDs in the SRCL and DRCL in both TAO groups were significantly decreased compared to the controls.In addition,the RCDs in DRCL of the DON group were further decreased compared to the non-DON group.GCC thickness in both TAO groups was positively correlated with the RCDs of the SRCL in the total annular zone and in the temporal,inferior,and nasal sectors.The areas under the receiver operating characteristic curves for the GCC thickness combined with the RCD were generally larger than those of each single indicator.Conclusions:Thinned inner intra-retinal layers and decreased RCDs in the TAO patients without DON revealed that morphological changes might precede visual dysfunction.The composite index of the retinal structure and the microvascular density might be valuable in the diagnosing,monitoring,and intervention for early DON. | Yufei Wu Yunhai Tu Chaoming Wu Lulu Bao Jianhua Wang Fan Lu Meixiao Shen Qi Chen | 2022 | Eye and Vision2022，8，2： | 0 |
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