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Deciphering the role of ultra-low-loaded rhodium in NiFe-MIL-53 for superior oxygen evolution reaction

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Journal of Energy Chemistry 2025年第1期100卷 77-86页

作者： Jinzhi jia Jinhua Zhang Kailu Guo Lanyue Zhang Gening Du Hao You Junfeng Huang Mudong Tu Hua Li Yong Peng wei Dou Cailing Xu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering School of Materials and Energy Lanzhou University College of Chemistry and Chemical Engineering Luoyang Normal University

Designing highly active and stable electrocatalysts of oxygen evolution reaction （OER） is one of the crucial *** this study,a novel OER electrocatalyst,NiFe-MIL-53 modified with ultra-low rhodium（Rh@NiFe-MIL-53）,is successfully prepared via the hydrothermal ***-situ Raman spectroscopy and electrochemical impedance spectroscopy reveal that the doped Rh accelerates the phase transformation of NiFe-MIL-53 and the in-situ formed Rh@NiFeOOH is the actual active *** importantly,the enhanced reversibility of electrochemical reconstruction between NiFeOOH and NiFe（OH）2after doping Rh is beneficial for improving the electrochemical stability of the catalyst.X-ray photoelectron spectroscopy spectra show the strong electronic interaction between single-atom Rh and Ni/Fe in Rh@***,theoretical calculations confirm that the integration of single-atom Rh into the NiFeOOH successfully reduces the band gap,regulates the d-band center （εd）,accelerates the charge transfer,and optimizes the adsorption behavior of oxygen-containing intermediates,thereby lowering the energy barrier of rate-determining ***,the optimized Rh@NiFe-MIL-53 exhibits excellent OER activity （240 mV） with a small Tafel slope of 48.2 mV dec-1and long-term durability (over1270 h at 10 m A cm-2and 110 h at 200 mA cm-2).This work presents a new perspective on designing highly efficient OER electrocatalysts.

关键词： X ray photoelectron spectroscopy

Effect of Bi/Si Ratio of BiBSi Glass on Its Structure, Properties and Laser Sealing Shear Strength for Vacuum Glazing

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 13-24页

作者： LIU wei jiaO Jinxu LUO Dusha zhou Junjie SHI Lifen WANG weiwei LI Changqing WANG Peng XIONG Dehua LI Hong State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China Silica-Based Materials Laboratory of Anhui Province CNBM Research Institute for Advanced Glass Materials Group Co.LtdBengbu 233018China State Key Laboratory of Advanced Technology for Float Glass CNBM Research Institute for Advanced Glass Materials Group Co.LtdBengbu 233018China

The low-melting glass of Bi2O_(3)-B2O_(3)-SiO_(2)(BiBSi)system was used for the first time for laser sealing of vacuum *** the condition of constant boron content,how the structure and properties vary with Bi/Si ratio in low-melting glass was *** addition,the relationships between laser power,low-melting glass solder with different Bi/Si ratios and laser sealing shear strength were *** results show that a decrease in the Bi/Si ratio can cause a contraction of the glass network of the low-melting glass,leading to an increase of its characteristic temperature and a decrease of its coefficient of thermal *** laser sealing,the copper ions in the low-melting glass play an endothermic role.A change in the Bi/Si ratio will affect the valence state transition of the copper ions in the low-melting *** absorbance of the low-melting glass does not follow the expected correlation with the Bi/Si ratio,but shows a linear correlation with the content of divalent copper *** greater the concentration of divalent copper ions,the greater the absorbance of the low-melting glass,and the lower the laser power required for laser *** shear strength of the low melting glass solder after laser sealing was tested,and it was found that the maximum shear strength of Z1 glass sample was the highest up to 2.67 MPa.

关键词： Bi2O_(3)-B2O_(3)-SiO_(2)(BiBSi) Bi/Si ratio low-melting glass laser sealing vacuum glazing

Spatial transcriptomics combined with single-nucleus RNA sequencing reveals glial cell heterogeneity in the human spinal cord

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Neural Regeneration Research 2025年第11期20卷 3302-3316页

作者： Yali Chen Yiyong wei Jin Liu Tao Zhu Cheng zhou Donghang Zhang Department of Anesthesiology West China HospitalSichuan UniversityChengduSichuan ProvinceChina Laboratory of Anesthesia and Critical Care Medicine National-Local Joint Engineering Research Center of Translational Medicine of AnesthesiologyWest China HospitalSichuan UniversityChengduSichuan ProvinceChina Department of Anesthesiology Longgang District Maternity&Child Healthcare Hospital of Shenzhen City(Longgang Maternity and Child Institute of Shantou University Medical College)ShenzhenGuangdong ProvinceChina Department of Anesthesiology Affiliated Hospital of Zunyi Medical UniversityZunyiGuizhou ProvinceChina

Glial cells play crucial roles in regulating physiological and pathological functions,including sensation,the response to infection and acute injury,and chronic neurodegenerative *** cells include astrocytes,microglia,and oligodendrocytes in the central nervous system,and satellite glial cells and Schwann cells in the peripheral nervous *** the greater understanding of glial cell types and functional heterogeneity achieved through single-cell and single-nucleus RNA sequencing in animal models,few studies have investigated the transcriptomic profiles of glial cells in the human spinal ***,we used high-throughput single-nucleus RNA sequencing and spatial transcriptomics to map the cellular and molecular heterogeneity of astrocytes,microglia,and oligodendrocytes in the human spinal *** explore the conservation and divergence across species,we compared these findings with those from *** the human spinal cord,astrocytes,microglia,and oligodendrocytes were each divided into six distinct transcriptomic *** the mouse spinal cord,astrocytes,microglia,and oligodendrocytes were divided into five,four,and five distinct transcriptomic subclusters,*** comparative results revealed substantial heterogeneity in all glial cell types between humans and ***,we detected sex differences in gene expression in human spinal cord glial ***,in all astrocyte subtypes,the levels of NEAT1 and CHI3L1 were higher in males than in females,whereas the levels of CST3 were lower in males than in *** all microglial subtypes,all differentially expressed genes were located on the sex *** addition to sex-specific gene differences,the levels of MT-ND4,MT2A,MT-ATP6,MT-CO3,MT-ND2,MT-ND3,and MT-CO_(2) in all spinal cord oligodendrocyte subtypes were higher in females than in ***,the present dataset extensively characterizes glial cell heterogeneity and offers a valuable resource for explo

关键词： astrocyte glial cell human microglia oligodendrocyte sex differentiation single-nucleus RNA sequencing spatial transcriptomics species variation spinal cord

Multivariate synergy for heightening ionic HOF robustness and proton conductivity

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Science China Chemistry 2025年

作者： Xiang-Tian Bai Li-Hui Cao Xu-Yong Chen jia-Yu Wang Zi-Ye zhou Shaanxi Key Laboratory of Chemical Additives for Industry College of Chemistry and Chemical EngineeringShaanxi University of Science and Technology

Multicomponent crystalline materials construct more complex and diversified structures with different combinations and modes,which expands the material structure space and application *** this work,we have successfully synthesized two twocomponent ionic hydrogen-bonded organic frameworks （iHOF-32 and iHOF-33） and a three-component iHOF （iHOF-34）.Guanidine hydrochloride which is rich in N and H and has a short chain length strengthens the hydrogen bonding network of iHOF,thereby aiding in the efficient migration of *** rigid architecture of 1,1'-diamino-4,4'-bipyridine diiodide furnishes additional scaffolding for the iHOFs and enhances its robustness under harsh ***-34 accomplishes the combination of the ultra-high proton conductivity of iHOF-32 and the robustness of iHOF-33 by the synergistic interaction among the three components of *** addition,iHOF-34 was fabricated as a composite membrane with a peak proton conductivity of 1.55×10-1S cm-1,which is 3.8 times higher than that of recast Nafion,and has extensive potential in fuel *** self-assembly strategy of multicomponent HOFs opens up new avenues for constructing diverse structures while promising new opportunities for applications in the fields of proton conduction and energy storage.

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苏合香丸联合尼莫地平治疗蛛网膜下腔出血后脑血管痉挛的临床研究

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现代药物与临床 2022年第1期37卷 75-80页

作者：牛永彬曹碧张毫周伟佳南阳南石医院神经外科河南南阳473000 新乡医学院基础医学院河南新乡453003

目的探究苏合香丸联合尼莫地平治疗蛛网膜下腔出血后脑血管痉挛的临床疗效。方法选取2018年5月—2021年5月南阳市南石医院收治的110例蛛网膜下腔出血后脑血管痉挛患者,所有患者随机分为对照组(55例)和治疗组(55例)。对照组静脉滴注尼莫... 详细信息

目的探究苏合香丸联合尼莫地平治疗蛛网膜下腔出血后脑血管痉挛的临床疗效。方法选取2018年5月—2021年5月南阳市南石医院收治的110例蛛网膜下腔出血后脑血管痉挛患者,所有患者随机分为对照组(55例)和治疗组(55例)。对照组静脉滴注尼莫地平注射液,注入5%葡萄糖溶液500 m L中,初始速度为0.5 mg/h,若血压无大幅下降可在2 h后改为1 mg/h,不间断给药,治疗2周。再口服尼莫地平片,60 mg/次,4次/d,治疗1周。治疗组在对照组的基础上口服苏合香丸,每天早晚各1粒,连续治疗3周。观察两组的临床疗效,比较两组患者神经功能,大脑前、中、后动脉平均血流速度,炎性因子和血管内皮功能因子水平。结果治疗后,治疗组总有效率为90.91%,对照组总有效率为74.55%,组间比较具有明显差异(P<0.05)。治疗后,两组美国国立卫生研究院卒中量表(NIHSS)评分均明显降低(P<0.05),且与对照组比较,治疗组NIHSS评分明显降低(P<0.05)。治疗后,两组大脑前、中、后动脉平均血流速度均明显降低(P<0.05),且治疗组大脑前、中、后动脉平均血流速度明显高于对照组(P<0.05)。治疗后,两组血清超敏C反应蛋白(hs-CRP)、白细胞介素-8(IL-8)、肿瘤坏死因子(TNF-α)水平均明显降低(P<0.05),且与对照组相比,治疗组血清hs-CRP、IL-8、TNF-α水平明显降低(P<0.05)。治疗后,两组血清内皮素-1(ET-1)、血管内皮生长因子(VEGF)水平均明显降低,血清降钙素基因相关肽(CGRP)水平明显升高(P<0.05),且与对照组比较,治疗组血清ET-1、VEGF水平明显降低,血清CGRP水平明显升高(P<0.05)。结论苏合香丸联合尼莫地平治疗蛛网膜下腔出血后脑血管痉挛具有较好的临床疗效,可有效提高神经功能,改善脑血流速度和血管内皮功能,减轻炎症反应,安全性较好。

关键词：苏合香丸尼莫地平注射液尼莫地平片蛛网膜下腔出血脑血管痉挛神经功能脑动脉血流速度炎性因子血管内皮功能因子

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傩面具表情符号的趣味性设计

包装工程 2017年第8期38卷 67-71页

作者：邓世维周嘉伟陈飞虎湖南大学长沙410082

目的研究傩面具的表情符号,探讨其趣味性特征及在现代设计中的运用。方法论述傩面具表情符号的艺术文化特征,通过案例分析傩面具表情符号的趣味性,巧妙结合现代设计中仿生、简练和卡通化的设计手法,对傩面具进行创新设计,使古老的艺术... 详细信息

目的研究傩面具的表情符号,探讨其趣味性特征及在现代设计中的运用。方法论述傩面具表情符号的艺术文化特征,通过案例分析傩面具表情符号的趣味性,巧妙结合现代设计中仿生、简练和卡通化的设计手法,对傩面具进行创新设计,使古老的艺术重焕生机,对本土设计的在地性、文化性表达进行探索。结论从趣味性设计的角度为傩面具表情符号的设计运用提供了新方法和思路,传统艺术在当今社会环境下的设计发展应具有时代的更新性与多元性。

关键词：傩面具表情符号趣味性设计

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安化黑茶的包装形态创意及表现

包装工程 2016年第10期37卷 178-181页

作者：邓世维陈飞虎周嘉伟湖南大学长沙410082

目的探索安化黑茶包装在现代审美背景下的形态创意构想和设计表现方法。方法分析安化黑茶包装形态的历史演变过程、发展局限和市场期许,结合创新设计案例,探讨安化黑茶包装形态的创意及表现。结论安化黑茶的包装形态创意设计有利于实现... 详细信息

目的探索安化黑茶包装在现代审美背景下的形态创意构想和设计表现方法。方法分析安化黑茶包装形态的历史演变过程、发展局限和市场期许,结合创新设计案例,探讨安化黑茶包装形态的创意及表现。结论安化黑茶的包装形态创意设计有利于实现品牌传播与产品销售的双赢,对现代茶包装的形态创意设计具有积极意义。

关键词：安化黑茶包装形态创意表现

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汽车前排座椅正面碰撞的仿真分析及优化

机械设计与制造 2020年第10期 149-152页

作者：赵民周嘉伟王宇邵萌沈阳建筑大学机械工程学院辽宁沈阳110168 上海鸿仿汽车技术有限公司上海201506

应用HyperMesh前处理软件建立了前排座椅有限元仿真模型,应用LS-DANY求解器对Hybrid III 50%假人进行正面碰撞仿真试验,所得结果与台车试验结果对比,验证了模型的有效性。同时对碰撞中假人胸部的伤害情况进行分析,结合试验结果发现假人... 详细信息

应用HyperMesh前处理软件建立了前排座椅有限元仿真模型,应用LS-DANY求解器对Hybrid III 50%假人进行正面碰撞仿真试验,所得结果与台车试验结果对比,验证了模型的有效性。同时对碰撞中假人胸部的伤害情况进行分析,结合试验结果发现假人模型胸部压缩量及粘性伤害指数均高于2018版C-NCAP评价标准,需要对座椅骨架进行优化。通过对座椅各部件应力与应变的分析,发现原座椅骨架中侧板与下潜管的受力及变形量过大,提出应对侧板进行增加翻边与厚度,下潜管由直管改为弯管的优化,结果表明优化后的座椅相比原座椅,假人模型的胸部压缩量降低了10.19%,胸部粘性伤害指数降低了16.52%,符合标准要求,并起到指导设计的作用。

关键词：前排座椅正面碰撞 LS-DANY 胸部伤害优化

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外压作用下深海腐蚀缺陷管道的屈曲失稳机理

浙江大学学报（工学版） 2020年第7期54卷 1401-1410页

作者：龚顺风徐勤贵周家伟王喜鹏刘承斌浙江大学结构工程研究所浙江杭州310058 浙江大学建筑设计研究院有限公司浙江杭州310028

为了研究外压作用下深海腐蚀缺陷管道的屈曲失稳机理,通过深海压力舱小比例模型试验,测得钢管试件发生屈曲失稳时的压力和变形形态.利用有限元软件ABAQUS建立管道的三维数值模型,模拟外压作用下完好无损管道和腐蚀缺陷管道的准静态屈曲... 详细信息

为了研究外压作用下深海腐蚀缺陷管道的屈曲失稳机理,通过深海压力舱小比例模型试验,测得钢管试件发生屈曲失稳时的压力和变形形态.利用有限元软件ABAQUS建立管道的三维数值模型,模拟外压作用下完好无损管道和腐蚀缺陷管道的准静态屈曲失稳过程,得到钢管的压力-直径变化曲线和变形形态,与试验结果吻合良好.采用建立的数值模拟方法,分析管道长度、径厚比、初始椭圆率、钢材等级、钢材应变硬化特性和缺陷几何尺寸等因素对腐蚀缺陷管道屈曲失稳的影响.结果表明,初始椭圆率、缺陷几何尺寸、钢材应变硬化特性是深海腐蚀缺陷管道标准化后失稳压力的主要影响因素,管道长度、径厚比、钢材等级对标准化后失稳压力的影响相对较小.

关键词：管道腐蚀缺陷屈曲失稳深海外压