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Coupling Co-Ni phosphides for energy-saving alkaline seawater splitting

Nano Research 2024年第6期17卷 4797-4806页

作者： Weijia liu wenxian liu Tong Hou Junyang Ding Zhigui Wang Ruilian Yin Xingyuan San Ligang Feng Jun Luo Xijun liu State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi Key Laboratory of Processing for Nonferrous Metals and Featured MaterialsMOE Key Laboratory of New Processing Technology for Nonferrous Metals and MaterialsSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanning 530004China College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014China Hebei Key Laboratory of Optic-electronic Information and Materials the College of Physics Science and TechnologyHebei UniversityBaoding 071002China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China ShenSi Lab Shenzhen Institute for Advanced StudyUniversity of Electronic Science and Technology of ChinaShenzhen 518110China

The coupling of energy-saving small molecule conversion reactions and hydrogen evolution reaction(HER)in seawater electrolytes can reduce the energy consumption of seawater electrolysis and mitigate chlorine corrosion ***,the fabrication of efficient multifunctional catalysts for this promising technology is of great ***,a heterostructured catalyst comprising CoP and Ni_(2)P on nickel foam(CoP/Ni_(2)P@NF)is reported for hydrazine oxidation(HzOR)-assisted alkaline seawater *** coupling of CoP and Ni_(2)P optimizes the electronic structure of the active sites and endows excellent electrocatalytic performance for HzOR and ***,the two-electrode HzOR-assisted alkaline seawater splitting(OHzS)cell based on the CoP/Ni_(2)P@NF required only 0.108 V to deliver 100 mA·cm^(−2),much lower than 1.695 V for alkaline seawater electrolysis ***,the OHzS cell exhibits satisfactory stability over 48 h at a high current density of 500 mA·cm^(−2).Furthermore,the CoP/Ni_(2)P@NF heterostructured catalyst also efficiently catalyzed glucose oxidation,methanol oxidation,and urea oxidation in alkaline seawater *** work paves a path for high-performance heterostructured catalyst preparation for energy-saving seawater electrolysis for H_(2) production.

关键词： seawater splitting heterostructure electrocatalysis hydrazine oxidation reaction hydrogen evolution reaction

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草业科学专业细胞生物学教学模式探索——以兰州大学草业科学专业为例

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草业科学 2024年第1期41卷 232-240页

作者：尹红菊刘文献未丽赵祺草种创新与草地农业生态系统全国重点实验室/兰州大学草地农业科技学院甘肃兰州730020

细胞生物学是一门重要的草业科学专业基础课程,是构筑现代草业人才专业知识体系的重要支撑。如何在有限的课堂时间内激发学生的学习兴趣、突出重点、提高细胞生物学的教学质量,以建立一套适合草业科学专业的细胞生物学教学模式是任课教... 详细信息

细胞生物学是一门重要的草业科学专业基础课程,是构筑现代草业人才专业知识体系的重要支撑。如何在有限的课堂时间内激发学生的学习兴趣、突出重点、提高细胞生物学的教学质量,以建立一套适合草业科学专业的细胞生物学教学模式是任课教师必须面对的挑战。细胞生物学实际教学中面临的主要问题是教学体系不完善,教材内容与专业特色结合不紧密,以及学生对课程的认知不足。兰州大学草地农业科技学院细胞生物学讲授团队围绕教学目标,从教学内容、教学方法、考核方式等方面进行了多年的探索。结果表明:通过及时更新专业知识、突出教学重点、融入科学故事和科研案例、利用多媒体教学、翻转课堂、多元化考核方式等手段提高了教学质量,取得了良好教学效果。

关键词：草业科学细胞生物学教学模式教学改革教学质量教学效果学习兴趣

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机械循环支持下急性心肌梗死合并心源性休克患者死亡的危险因素分析

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中华胸心血管外科杂志 2024年第7期40卷 399-405页

作者：张宁刘文娴康云鹏首都医科大学附属北京安贞医院心内科监护室北京100029

目的回顾性分析机械循环支持(MCS)导致急性心肌梗死合并心源性休克(AMICS)患者死亡的危险因素。方法纳入2018年1月至2024年1月在北京安贞医院住院的234例AMICS患者。其中死亡组(79例), 生存组(155例)。117例患者在经皮冠状动脉介入治疗(... 详细信息

目的回顾性分析机械循环支持(MCS)导致急性心肌梗死合并心源性休克(AMICS)患者死亡的危险因素。方法纳入2018年1月至2024年1月在北京安贞医院住院的234例AMICS患者。其中死亡组(79例), 生存组(155例)。117例患者在经皮冠状动脉介入治疗(PCI)后接受了MCS治疗(定义为延迟MCS治疗)。比较死亡组及生存组患者的基线资料及临床资料, 分析可能影响死亡的潜在危险因素。结果统计学分析结果表明, 较高的白细胞数量(OR=1.017, P=0.003, 95%CI:1.005~1.028), 较高的动脉乳酸水平(OR=2.021, P5.05 mmol/L)、冠状动脉三支病变、延迟MCS治疗、MCS辅助单独使用主动脉内球囊反搏是MCS辅助下AMICS患者死亡的独立危险因素。

关键词：急性心肌梗死心源性休克机械循环支持危险因素

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Engineering active sites of cathodic materials for high-performance Zn-nitrogen batteries

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Nano Research 2023年第7期16卷 9214-9230页

作者： Shanshan Chen Kang Lian wenxian liu Qian liu Gaocan Qi Jun Luo Xijun liu Institute for New Energy Materials and Low-Carbon Technologies Tianjin Key Lab for Photoelectric Materials&DevicesSchool of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures School of ResourceEnvironments and MaterialsGuangxi UniversityNanning 530004China College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014China Institute for Advanced Study Chengdu UniversityChengdu 610106China ShenSi Lab Shenzhen Institute for Advanced StudyUniversity of Electronic Science and Technology of ChinaShenzhen 518110China

As an ideal carbon-free energy carrier,ammonia plays an indispensable role in modern *** conventional industrial synthesis of NH3 by the Haber-Bosch technique under harsh reaction conditions results in serious energy consumption and environmental ***,it is essential to develop NH3 synthesis tactics under benign *** synthesis of NH_(3) has the advantages of mild reaction conditions and environmental friendliness,and has become a hotspot for research in recent *** has been reported that zinc-nitrogen batteries(ZNBs),such as Zn-N_(2),Zn-NO,Zn-NO_(3)^(-),and Zn-NO_(2)^(-)batteries,can not only reduce nitrogenous species to ammonia but also have concomitant power ***,the common drawbacks of these battery systems are unsatisfactory power density and ammonia *** this review,the latest progress of ZNBs including the reaction mechanism of the battery and reactor design principles is systematically ***,active site engineering of cathode catalysts is discussed,including vacancy defects,chemical doping,and heterostructure ***,some insights are provided to improve the performance of ZNBs from a practical perspective of view.

关键词： Zn-nitrogen batteries nitrogen reduction electrocatalysis ammonia synthesis aqueous battery

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Active-site and interface engineering of cathode materials for aqueous Zn–gas batteries

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Nano Research 2023年第2期16卷 2325-2346页

作者： wenxian liu Jinxiu Feng Tianran Wei Qian liu Shusheng Zhang Yang Luo Jun Luo Xijun liu College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014China Ministry of Education(MOE)Key Laboratory of New Processing Technology for Non-Ferrous Metals and Materials and Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured MaterialsSchool of ResourceEnvironmentsand MaterialsGuangxi UniversityNanning 530004China Institute for Advanced Study Chengdu UniversityChengdu 610106China College of Chemistry Zhengzhou UniversityZhengzhou 450000China Empa Swiss Federal Laboratories for Materials Science and TechnologySwiss Federal Institute of Technology in Zurich(ETH)DomainDübendorf CH-8600Switzerland Hong Kong Productivity Council(HKPC) Hong Kong 999077China School of Materials Science and Engineering Tianjin University of TechnologyTianjin 300384China

Aqueous rechargeable Zn–gas batteries are regarded as promising energy storage and conversion devices due to their high safety and inherent environmental ***,the energy efficiency and power density of Zn–gas batteries are restricted by the kinetically sluggish cathode reactions,such as oxygen evolution reaction(OER)during charging and oxygen reduction reaction(ORR)/carbon dioxide reduction reaction(CO_(2)RR)/nitrogen reduction reaction(NRR)/nitric oxide reduction reaction(NORR)during *** this review,battery configurations and fundamental reactions in Zn–gas batteries are first introduced,including Zn–air,Zn-CO_(2),Zn-N_(2),and Zn-NO ***,recent advances in active site engineering for enhancing the intrinsic catalytic activities of cathode catalysts are ***,the structure and surface regulation strategies of cathode materials for optimizing the three-phase interface and improving the performance of Zn–gas batteries are ***,some personal perspectives for the future development of Zn–gas batteries are presented.

关键词： Zn–gas batteries electrocatalysis single-atom catalysts chemical doping heterostructure interface

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应激性高血糖比值对围产期心肌病患者预后的预测价值

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中国医药 2024年第9期19卷 1285-1289页

作者：朱佳佳刘文娴陈立颖刘宝利首都医科大学附属北京安贞医院心内科北京100029 首都医科大学附属北京中医医院肾内科北京100010

目的探讨应激性高血糖比值(SHR)对围产期心肌病(PPCM)患者预后的预测价值。方法连续性收集2007年1月至2023年3月于首都医科大学附属北京安贞医院住院治疗诊断为PPCM的78例患者的临床资料进行回顾性分析。根据心功能是否改善分为无改善组... 详细信息

目的探讨应激性高血糖比值(SHR)对围产期心肌病(PPCM)患者预后的预测价值。方法连续性收集2007年1月至2023年3月于首都医科大学附属北京安贞医院住院治疗诊断为PPCM的78例患者的临床资料进行回顾性分析。根据心功能是否改善分为无改善组(37例)和改善组(41例)。使用受试者工作特征(ROC)曲线分析SHR对患者不良预后的预测效能,采用Logistic回归分析方法评估心功能无改善的影响因素。结果无改善组患者年龄、经产妇比例、PPCM病史比例、左心室舒张末期内径、血肌酐、血糖、B型脑钠肽水平、SHR均大于/高于改善组,收缩压、左心室射血分数(LVEF)均低于改善组(均P<0.05)。ROC曲线分析结果显示,SHR预测PPCM患者出现不良预后的最佳截断值为1.079,敏感度为81.1%,特异度为90.2%,曲线下面积为0.880(95%置信区间:0.800~0.961)(P=0.041)。多因素Logistic回归分析结果显示SHR≥1.079、血肌酐及LVEF<35%为PPCM患者不良预后的独立危险因素(均P<0.05)。结论SHR≥1.079是PPCM患者预后不良的危险因素,使用SHR可以协助识别PPCM高危人群。

关键词：围产期心肌病应激性高血糖比值左心室射血分数

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Technique of Earthworms Restoring Soil in Greenhouse Cultivation

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Asian Agricultural Research 2024年第1期16卷 40-43页

作者： Yanjiao LI Jiafei SU Zhiu ZHANG Guang QI Jianhua CHEN Lixuan KOU Limin WANG wenxian liu Junyi ZHANG Libing QIU School of Chemical and Environmental Engineering Pingdingshan UniversityPingdingshan 467000China

The production environment of greenhouse cultivation is relatively closed,the multiple cropping index is high,the management of fertilizationwatering and pesticideapplication isblindtosomeextent,andthe phenomenonofcontinuous cropping isalsocommonSoilquali-ty affects the sustainable development of greenhouse *** is a ubiquitous invertebrate organism in soil,an important part of soil system,a link between terrestrial organisms and soil organisms,an important link in the small cycle of soil material organisms,and plays an important role in maintaining the structure and function of soil *** ecotypes of earthworms are closely related to their habi-tats(soil layers)and food resource preferences,and then affect their ecological *** principle of earthworm regulating soil function is essentially the close connection and interaction between earthworm and soil *** different ecotypes of earthworms and bio-logical agents to carry out combined remediation of greenhouse cultivation soil is a technical model to realize sustainable development of green-house cultivation.

关键词： Earthworms Greenhouse cultivation Soil remediation Biological agent

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Ultra-thin metal-organic framework nanoribbons

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National Science Review 2020年第1期7卷 46-52页

作者： Bingqing Wang Meiting Zhao liuxiao Li Ying Huang Xiao Zhang Chong Guo Zhicheng Zhang Hongfei Cheng wenxian liu Jing Shang Jing Jin Xiaoming Sun Junfeng liu Hua Zhang State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Center for Programmable Materials School of Materials Science and Engineering Nanyang Technological University Department of Chemistry City University of Hong Kong

Structure engineering of metal-organic frameworks(MOFs) at the nanometer scale is attracting increasing interest due to their unique properties and new functions that normally cannot be achieved in bulk MOF crystals. Here, we report the preparation of ultra-thin MOF nanoribbons(NRBs) by using metal-hydroxide nanostructures as the precursors. Importantly, this general method can be used to synthesize various kinds of ultra-thin MOF NRBs, such as MBDC(M = Co, Ni; BDC = 1,4-benzenedicarboxylate), NiCoBDC,CoTCPP(TCPP = tetrakis(4-carboxyphenyl)porphyrin) and MIL-53(Al) NRBs. As a proof-of-concept application, the as-prepared ultra-thin Co BDC NRBs have been successfully used as a fluorescent sensing platform for DNA detection, which exhibited excellent sensitivity and selectivity. The present strategy might open an avenue to prepare MOF nanomaterials with new structures and unique properties for various promising applications.

关键词： metal-organic frameworks nanoribbons metal-hydroxide nanostructures structure engineering DNA detection

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砂质海岸海滩养护工程造价概算控制技术探讨——以珠海市桂山岛海豚湾海滩养护工程为例

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工程造价管理 2024年第3期35卷 44-49页

作者：张明慧岳文苏伟索安宁张劲文刘文娴广州航海学院广东广州510725 广东省土地调查规划院广东广州511458 中国科学院南海海洋研究所广东广州510301

砂质海岸海滩在全国沿海各地都有分布,其养护工程是海岸生态修复工程的主要类型之一。砂质海岸海滩养护工程造价概算是海滩养护工程管理决策的重要依据,对海滩养护工程高质量实施具有重要意义。文章针对我国砂质海岸海滩养护工程造价概... 详细信息

砂质海岸海滩在全国沿海各地都有分布,其养护工程是海岸生态修复工程的主要类型之一。砂质海岸海滩养护工程造价概算是海滩养护工程管理决策的重要依据,对海滩养护工程高质量实施具有重要意义。文章针对我国砂质海岸海滩养护工程造价概算控制的技术需求,在分析砂质海岸海滩养护工程造价构成的基础上,探讨了海滩养护工程造价概算技术流程,分析了海滩养护工程造价概算控制技术要点,并以珠海市桂山岛海豚湾海滩养护工程为例,测算了海豚湾海滩养护工程施工量及物料耗用量,调研了主要耗用物料的市场价格,编制了海豚湾海滩养护工程造价概算控制表,剖析了海豚湾海滩养护工程造价概算控制技术要点,以期为海滩养护工程造价控制提供技术方法。

关键词：砂质海岸海滩养护工程概算造价控制

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Non-noble-metal electrocatalysts for oxygen evolution reaction toward seawater splitting: A review

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ChemPhysMater 2023年第3期2卷 185-196页

作者： Zhengguang Qin wenxian liu Wenbin Que Jinxiu Feng Wenhui Shi Fangfang Wu Xiehong Cao College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014China Center for Membrane and Water Science&Technology College of Chemical EngineeringZhejiang University of TechnologyHangzhou 310014China

The direct electrolytic splitting of abundant seawater instead of scarce freshwater is an ideal strategy for producing clean and renewable hydrogen(H 2)*** oxygen evolution reaction(OER)is a vital half-reaction that occurs during electrochemical seawater ***,OER suffers from sluggish four-electron transfer kinetics and competitive chlorine evolution reactions in *** metal-based catalysts such as IrO_(2) and RuO_(2) are considered to have state-of-the-art OER electrocatalytic activity,but the low reserves and high prices of these noble metals significantly limit their large-scale ***,efforts have been made to explore efficient,robust,and anti-chlorine-corrosion non-noble-metal OER electrocatalysts for seawater splitting such as oxides,hydroxides,phosphides,nitrides,chalcogenides,alloys,and *** in-depth understanding of the fundamentals of seawater electrolysis and the design principle of electrode materials is important for promoting seawater-splitting *** this review,we first introduce fundamental reactions in seawater ***,construction strategies for OER electrocatalysts for seawater splitting are ***,present challenges and perspectives regarding non-noble-metal OER electrocatalysts for commercial H 2 production by seawater splitting are discussed.

关键词： Non-noble metals OER electrocatalyst Seawater splitting Chlorine evolution reactions

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