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| 1 | Boosting selectivity and stability on Pt/BN catalysts for propane dehydrogenation via calcination & reduction-mediated strong metal-support interaction显示文摘Propane dehydrogenation(PDH) provides an alternative route for producing propylene. Herein, we demonstrates that h-BN is a promising support of Pt-based catalysts for PDH. The Pt catalysts supported on h-BN were prepared by an impregnation method using Pt(NH_(3))_(4)(NO_(3))_(2) as metal precursors. It has been found that the Pt/BN catalyst undergoing calcination and reduction is highly stable in both PDH reaction and coke-burning regeneration, together with low coke deposition and outstanding propylene selectivity(99%). Detailed characterizations reveal that the high coke resistance and high propylene selectivity of the Pt/BN catalyst are derived not only from the absence of acidity on BN support, but also from the calcination-induced and reduction-adjusted strong metal-support interaction(SMSI) between Pt and BN, which causes the partial encapsulation of Pt particles by BO_(x) overlayers. The BO_(x) overlayers can block the low-coordinated Pt sites and constrain Pt particles into smaller ensembles, suppressing side reactions such as cracking and deep dehydrogenation. Moreover, the BO_(x) overlayers can effectively inhibit Pt sintering by the spatial isolation of Pt during periodic reaction-regeneration cycles. In this work, the catalyst support for PDH is expanded to nonoxide BN, and the understanding of SMSI between Pt and BN will provide rational design strategy for BN-based catalysts. | Yaoxin Wang Jiandian Wang Ping Zheng Changyong Sun Junyin Luo Xiaowei Xie | 2022 | Journal of Energy Chemistry2022，31，4： | 3 |
| 2 | Finite element analysis for load distribution of multi-fastener joints 显示文摘 | WANG Shoumei HAN Yaoxin | 1988 | Journal of Composite Materials1988，22，2： | 1 |
| 3 | HBeAg-negative Patients with Chronic Hepatitis B Virus Infection and Normal Alanine Aminotransferase:Wait or Treat?显示文摘Alanine aminotransferase(ALT)is a common clinical indicator of liver inflammation.The current Chinese guidelines for the management of chronic hepatitis B(CHB)recommend antiviral treatment for patients with detectable hepatitis B virus(HBV)DNA and persistent ALT levels(ALTs)exceeding the upper limit of normal.However,it has been recently reported that patients with chronic HBV infection,especially HBeAg-negative patients with persistently normal ALTs,may have liver biopsy findings of significant inflammation and fibrosis.For HBeAg-negative patients with chronic HBV infection and normal ALTs,many controversial questions have been asked.To treat or not?When to initiate the treatment?Which drug is appropriate?In this review,we summarize the available data on the management of HBeAg-negative patients with chronic HBV infection and normal ALTs with the aim of improving the current clinical management. | Qiuju Sheng Ning Wang Chong Zhang Yaoxin Fan Yanwei Li Chao Han Ziyi Wang Shuqi Wei Xiaoguang Dou Yang Ding | 2022 | Journal of Clinical and Translational Hepatology2022，10，5： | 1 |
| 4 | A Study on the Assessment and Integration of Multi-Source Evapotranspiration Products over the Tibetan Plateau显示文摘Evapotranspiration(ET)is a crucial variable in the terrestrial water,carbon,and energy cycles.At present,a large number of multi source ET products exist.Due to sparse observations,however,great challenges exist in the evaluation and integration of ET products in remote and complex areas such as the Tibetan Plateau(TP).In this paper,the applicability of the multiple collocation(MC)method over the TP is evaluated for the first time,and the uncertainty of multisource ET products(based on reanalysis,remote sensing,and land surface models)is further analyzed,which provides a theoretical basis for ET data fusion.The results show that 1)ET uncertainties quantified via the MC method are lower in RS-based ET products(5.95 vs.7.06 mm month^(-1))than in LSM ET products(10.22 vs.17.97 mm month^(-1))and reanalysis ET estimates(7.27 vs.12.26 mm month-1).2)A multisource evapotranspiration(MET)dataset is generated at a monthly temporal scale with a spatial resolution of 0.25°across the TP during 2005-15.MET has better performance than any individual product.3)Based on the fusion product,the total ET amount over the TP and its patterns of spatiotemporal variability are clearly identified.The annual total ET over the entire TP is approximately 380.60 mm.Additionally,an increasing trend of 1.59±0.85 mm yr^(-1)over the TP is shown during 2005-15.This study provides a basis for future studies on water and energy cycles and water resource management over the TP and surrounding regions. | Ming CHENG Lei ZHONG Yaoming MA Han MA Yaoxin CHANG Peizhen LI Meilin CHENG Xian WANG Nan GE | 2024 | Advances in Atmospheric Sciences2024，41，3： | 0 |
| 5 | Multi-rate principal component regression model forsoft sensor application in industrial processes显示文摘Dear editor,For obtaining the accurate and timely information from the modern process industries,an increasing number of online hardware sensors are equipped for process monitoring and control,energy management and environmental protection purpose[1,2].However,some key variables of the process cannot be measured by these online sensors,which requires the off-line laboratory analysis.For solving these problems,an inferential model called soft sensor is usually utilized[3]. | Le ZHOU Yaoxin WANG Zhiqiang GE | 2020 | Science China(Information Sciences)2020，63，4： | 0 |
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