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Engineering the Active Sites of MOF-derived Catalysts:From Oxygen Activation to Activate Metal-Air Batteries

Chinese Journal of Chemistry 2024年第20期42卷 2520-2535页

作者： Fanjiao Chen Xueqin Mu Jialing Zhou shengchen wang Zhengyang Liu Dingyang Zhou Suli Liu Dingsheng wang Zhihui Dai Schoolof Chemistry and Molecular Engineering Nanjing TechUniversityNanjingJiangsu 211816China Department of Chemistry Tsinghua UniversityBeijing 100084China

The electrochemical processes of oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)play a crucial role in various energy storage and conversion ***,the inherently slow kinetics of reversible oxygen reactions present an urgent demand for the development of efficient oxygen ***,metal-organic framework(MOF)derivatives have attracted extensive attention in electrocatalysis research due to their unique porous structure,abundant active sites,and tunable structural ***,the optimization of the electronic structure of active sites in MOF derivatives has been proven as an effective strategy to enhance the catalytic *** this review,we provide an overview of the electronic structure optimization strategies for active sites in MOF derivatives as advanced catalysts in various O—O bond activation reactions,including the construction of synergistic effects between multiple sites,the development of heterogeneous interfaces,the utilization of metal support interactions,and the precise modulation of organic ligands surrounding catalytic active sites at the atomic ***,this review offers theoretical insights into the oxygen activation and catalytic mechanisms of MOF derivatives,as well as the identification of active ***,the potential challenges and prospects of MOF derivatives in electrocatalysis are *** review contributes to the understanding and advancement of efficient oxygen electrocatalysis in energy systems.

关键词： Metal-organic framework derivatives Electronic structure Active sites Oxygen reduction reaction Oxygen evolution reaction

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The chemical characteristics of different sodium iron ethylenediaminetetraacetate sources and their relative bioavailabilities for broilers fed with a conventional corn‑soybean meal diet

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Journal of Animal Science and Biotechnology 2024年第2期15卷 826-843页

作者： shengchen wang Bingxin Wu Ling Zhu Weiyun Zhang Liyang Zhang We Wu Jiaqi Wu Yun Hu Tingting Li Xiaoyan Cui Xugang Luo College of Animal Science and Technology Yangzhou UniversityYangzhou 225000People’s Republic of China Mineral Nutrition Research Division State Key Laboratory of Animal NutritionInstitute of Animal ScienceChinese Academy of Agricultural SciencesBeijing 100193China

Background Our previous studies demonstrated that divalent organic iron(Fe)proteinate sources with higher complexation or chelation strengths as expressed by the greater quotient of formation(Qf)values displayed higher Fe bioavailabilities for *** iron ethylenediaminetetraacetate(NaFeEDTA)is a trivalent organic Fe source with the strongest chelating ligand ***,the bioavailability of Fe when administered as NaFeEDTA in broilers and other agricultural animals remains ***,the chemical characteristics of 12 NaFeEDTA products were *** these,one feed grade NaFeEDTA(Qf=2.07×10^(8)),one food grade NaFeEDTA(Qf=3.31×10^(8)),and one Fe proteinate with an extremely strong chelation strength(Fe-Prot ES,Qf value=8,590)were *** bioavailabilities relative to Fe sulfate(FeSO_(4)·7H_(2)O)for broilers fed with a conventional corn-soybean meal diet were evaluated during d 1 to 21 by investigating the effects of the above Fe sources and added Fe levels on the growth performance,hematological indices,Fe contents,activities and gene expressions of Fe-containing enzymes in various tissues of *** NaFeEDTA sources varied greatly in their chemical *** Fe concentration(PI),transferrin saturation(TS),liver Fe content,succinate dehydrogenase(SDH)activities in liver,heart,and kidney,catalase(CAT)activity in liver,and SDH mRNA expressions in liver and kidney increased linearly(P<0.05)with increasing levels of Fe ***,differences among Fe sources were detected(P<0.05)only for PI,liver Fe content,CAT activity in liver,SDH activities in heart and kidney,and SDH mRNA expressions in liver and *** on slope ratios from multiple linear regressions of the above indices on daily dietary analyzed Fe intake,the average bioavailabilities of Fe-Prot ES,feed grade NaFeEDTA,and food grade NaFeEDTA relative to the inorganic FeSO_(4)·7H_(2)O(100%)for broilers were 139%,155%,and 166%,***

关键词： Broilers Chelation strengths Fe-containing enzymes NaFeEDTA Relative bioavailabilities

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Advances in the study of HOR reaction mechanisms under alkaline conditions

Advanced Sensor and Energy Materials

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Advanced Sensor and Energy Materials 2024年第1期3卷 23-38页

作者： Yuru Liao shengchen wang Yifan Zhang Yue Zhang Yun Gao Xueqin Mu Suli Liu Dingsheng wang Zhihui Dai School of Chemistry and Molecular Engineering Nanjing Tech UniversityNanjing 211816China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology InstitutionWuhan 430070China Engineering Research Center of Advanced Rare Earth Materials Department of ChemistryTsinghua UniversityBeijing100084China

Hydrogen energy is an important energy carrier,which is an ideal choice to meet energy demand and reduce harmful gas *** green recycling of hydrogen energy depends on water electrolysis and hydrogen fuel cells,which involves hydrogen oxidation reaction(HOR)and hydrogen evolution reaction(HER).The activity of HER/HOR in alkaline electrolyte,however,exhibits a significantly lower magnitude(2–3 orders)compared to that observed in an acidic medium,which hinders the development of alkaline water electrolysis and alkaline membrane fuel ***,comprehending the characteristics of HOR/HER activity in alkaline electrolytes and elucidating its underlyingmechanismis a prerequisite for the designof advanced *** on this background,this reviewwill briefly summarize the explanations and controversies about the basic HOR mechanism,including bifunctional mechanismand hydrogen binding energy ***,the crucial affecting factors of theHOR kinetics,such as dband center theory,interfacial water recombination,alkali metal cations and electronic effects,are ***,based on the above theories,the design principle,catalytic performance,and latest progress ofHOR electrocatalysts are *** outlook and future research perspectives of advanced catalysts for hydrogen energy recycling are *** reviewis helpful to understand the latest development ofHORmechanismand design cost-effective and high-performance HOR electrocatalysts towards the production of clean renewable energies.

关键词： Hydrogen oxidation reaction(HOR) Electrocatalytic mechanism Hydrogen binding energy theory(HBE) Bifunctional theory

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Dietary copper requirement of broilers fed a corn-soybean meal diet during 22—42 d of age

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Animal Nutrition 2024年第1期16卷 96-104页

作者： Ling Zhu Wei Wu Bingxin Wu Yun Hu Liyang Zhang Weiyun Zhang Tingting Li Xiaoyan Cui Feiyu Gao Ding Li Xugang Luo shengchen wang Poultry Mineral Nutrition Laboratory College of Animal Science and TechnologyYangzhou UniversityYangzhou 225000China Mineral Nutrition Research Division State Key Laboratory of Animal NutritionInstitute of Animal ScienceChinese Academy of Agricultural SciencesBeijing 100193China

This research was to assess the dietary copper(Cu)requirement of broiler chickens fed a practical cornsoybean meal diet during 22—42 d of age.A total of 288 numbered Arbor Acres male broilers at 22 d of age were randomly allotted 6 treatments with 8 replicate cages(6 broilers per cage)per *** were fed a Cu-unsupplemented corn-soybean meal basal diet(control,containing 7.36 mg Cu/kg)or the basal diet added with 3,6,9,12,or 15 mg Cu/kg from CuSO_(4)·5H_(2)O for 21 ***,asymptotic and broken-line models were fitted and the best fitted models were selected to determine dietary Cu *** results revealed that the contents of Cu in serum and liver,m RNA expression levels of Cu-and zinc-containing superoxide dismutase(CuZnSOD)in liver and monoamine oxidase b(MAO B)in heart,as well as protein expression level of CuZnSOD in liver were affected(P<0.05)by supplemental Cu levels,and the above indices varied linearly and quadratically(P<0.05)with increasing Cu *** Cu requirements assessed according to the best fitted broken-line models(P<0.05)of the above indexes were 10.45—13.81 mg/*** was concluded that mRNA expression levels of CuZnSOD in liver and MAO B in heart,as well as liver CuZnSOD protein expression level were new specific sensitive biomarkers for estimating dietary Cu requirements,and the dietary Cu requirement was recommended to be 14 mg/kg to support Cu metabolic needs related to key Cucontaining enzymes in broilers fed the corn-soybean meal diet during 22—42 d of age,which was higher than the dietary Cu requirement(8 mg/kg)for broilers at the corresponding stage suggested by the Chinese Feeding Standard of Chicken.

关键词： Copper Copper content Gene expression of copper-containing enzyme Requirement Broiler

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“永不落幕”的线上剧场:郓城花鼓戏的网络直播与互动仪式

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民俗研究 2024年第1期 106-113,158页

作者：王生晨山东大学儒学高等研究院山东济南250100

在线下演艺市场日渐萎缩与短视频平台快速兴起的双重背景下,郓城花鼓戏的演出场域实现了线上转移,带来了新的观演方式。尤其在新冠疫情期间,网络直播为艺人提供了演出空间,为爱好者搭建了学戏平台,满足了观众戏曲欣赏、社会交往与情感... 详细信息

在线下演艺市场日渐萎缩与短视频平台快速兴起的双重背景下,郓城花鼓戏的演出场域实现了线上转移,带来了新的观演方式。尤其在新冠疫情期间,网络直播为艺人提供了演出空间,为爱好者搭建了学戏平台,满足了观众戏曲欣赏、社会交往与情感陪伴的需求。限于郓城花鼓戏的地方性特点,网络直播的参与者大多来自同一文化社区,具有半熟人性质,他们在直播间实现虚拟在场,在共同关注花鼓戏及周边话题的同时,赢得身份符号,收获情感能量,完成自我认同与社会关系的重构。

关键词：郓城花鼓戏网络直播互动仪式虚拟社交情感能量

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Molecular structure and application of covalent organic frameworks(COFs)in tumor therapy

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National Science Open 2024年第6期3卷 68-99页

作者： Junlin Li Yuanfeng Ye Yudi Peng Xiaoyun Hu Fanjiao Chen Yifan Zhang shengchen wang Suli Liu Dingsheng wang Zhihui Dai Nanjing Key Laboratory of Optometric Materials and Technology School of Materials and EngineeringJinling Institute of TechnologyNanjing 211169China School of Chemistry and Molecular Engineering Nanjing Tech UniversityNanjing 211816China Department of Chemistry Tsinghua UniversityBeijing 100022China

The field of nanomedicine has emerged as a vital component in cancer treatment modalities over the past *** organic frameworks(COFs)at the nanoscale have become a novel and promising category of biomaterials in the field of *** distinctive properties,such as low density,exceptional porosity,crystalline structure,remarkable thermal stability,versatile functionality,and biocompatibility,contribute to their significant potential in cancer therapy *** review firstly discusses COFs with various morphologies in theranostic *** primary morphologies of COFs for tumors treatment can be categorized into four types:nanospheres,nanosheets,nano-rods/tubes and ***,we review recent research articles and systematically discuss recent advancements in COFs for chemotherapy,chemodynamic therapy,photodynamic therapy,photothermal therapy and combination *** conclusion,we outline the current obstacles and potential future directions for this distinctive research area.

关键词： covalent organic frameworks photodynamic therapy photothermal therapy combinatorial therapy

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尿素类型与施肥深度对冬小麦花后旗叶光合特性与产量的影响

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山东农业科学 2021年第12期53卷 88-95页

作者：曲晓莲李耕仲锦维王升臣张雅芹龙口市农业技术推广中心山东龙口265701 山东农业大学农学院山东泰安271018

为探究尿素类型与施肥深度对冬小麦产量的影响,试验于2015—2016年和2016—2017年冬小麦生长季进行。采用裂区试验设计,尿素类型为主区,施肥深度为副区,主副区各设两个水平,通过对不同处理下冬小麦花后旗叶光合特性及不同指标的关系研究... 详细信息

为探究尿素类型与施肥深度对冬小麦产量的影响,试验于2015—2016年和2016—2017年冬小麦生长季进行。采用裂区试验设计,尿素类型为主区,施肥深度为副区,主副区各设两个水平,通过对不同处理下冬小麦花后旗叶光合特性及不同指标的关系研究,从生理学角度揭示产量差异的原因。结果表明,相较于普通尿素处理,普-控释尿素处理可显著提高单位面积穗数和千粒重,进而获得高产;相较于浅施(5 cm),尿素深施(10 cm)可显著提高冬小麦产量。普-控释尿素处理显著提高花后旗叶面积和净光合速率(Pn),有效延缓叶片衰老,旗叶面积、净光合速率与千粒重存在极显著正相关关系,因而,小麦千粒重提高;干物质量的增长小于旗叶面积的增长,比叶重较普通尿素处理降低。同时,由于叶面积的增加,普-控释尿素处理的旗叶氮含量及单位叶面积氮含量(N_(area))均有下降趋势,但光合氮素利用效率(PNUE)显著提高。花后旗叶面积、干重及光合氮素利用效率随尿素施用深度的增加显著提高。普-控释尿素深施处理可显著提高ABS/CSm、TRo/CSm、ETo/CSm,有效改善光系统Ⅱ(PSⅡ)对光能的吸收和利用性能。

关键词：冬小麦尿素类型施肥深度光合特性光合氮素利用效率产量

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饲粮添加甜菜碱缓解皮质酮诱导的产蛋鸡小肠炎症反应研究

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动物营养学报 2024年第5期36卷 3015-3023页

作者：杜鑫李鼎汪圣晨崔小燕李婷婷张丽阳罗绪刚胡云扬州大学动物科学与技术学院扬州225009 中国农业科学院北京畜牧兽医研究所矿物元素营养研究室北京100193

本试验旨在研究饲粮添加甜菜碱缓解皮质酮诱导的产蛋鸡小肠炎症反应。采用单因素完全随机试验设计,将72只130日龄产蛋鸡随机分成3组,每组8个重复,每个重复3只鸡。对照组和皮质酮组产蛋鸡全程饲喂不添加甜菜碱的基础饲粮,甜菜碱+皮质酮... 详细信息

本试验旨在研究饲粮添加甜菜碱缓解皮质酮诱导的产蛋鸡小肠炎症反应。采用单因素完全随机试验设计,将72只130日龄产蛋鸡随机分成3组,每组8个重复,每个重复3只鸡。对照组和皮质酮组产蛋鸡全程饲喂不添加甜菜碱的基础饲粮,甜菜碱+皮质酮组产蛋鸡全程饲喂基础饲粮+0.10%甜菜碱。试验至28 d时,皮质酮组和甜菜碱+皮质酮组产蛋鸡均按4 mg/kg BW的剂量皮下注射皮质酮,对照组产蛋鸡皮下注射等量生理盐水,连续注射7 d。试验期35 d。结果表明:1)与对照组相比,皮质酮组的十二指肠、空肠和回肠中白细胞介素-1β(IL-1β)含量显著升高(P<0.05);与皮质酮组相比,甜菜碱+皮质酮组的十二指肠、空肠和回肠中IL-1β含量显著降低(P <0.05)。2)与对照组相比,皮质酮组的十二指肠中Toll样受体4(TLR4)、白细胞介素-8(IL-8)和核因子-κB p65(NF-κB p65)的mRNA表达水平显著升高(P<0.05);与皮质酮组相比,甜菜碱+皮质酮组的十二指肠中TLR4、IL-8和NF-κB p65的mRNA表达水平显著降低(P<0.05)。3)与对照组相比,皮质酮组的空肠中IL-1β和NF-κB p65的mRNA表达水平显著升高(P<0.05);与皮质酮组相比,甜菜碱+皮质酮组的空肠中IL-1β的mRNA表达水平显著降低(P<0.05),空肠中白细胞介素-10(IL-10)的mRNA表达水平显著升高(P<0.05)。4)与对照组相比,皮质酮组的回肠中IL-1β、IL-8和NF-κB p65的mRNA表达水平显著升高(P<0.05);与皮质酮组相比,甜菜碱+皮质酮组的空肠中IL-1β、IL-8和NF-κB p65 mRNA表达水平显著降低(P<0.05)。综上所述,饲粮添加甜菜碱可通过降低小肠中IL-1β含量及炎症相关基因的mRNA表达水平缓解皮质酮诱导的产蛋鸡小肠炎症反应。

关键词：甜菜碱皮质酮产蛋鸡小肠炎症

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基于电路理论的县域生态安全格局构建:以山东省栖霞市为例

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生态学杂志 2024年第10期43卷 3223-3232页

作者：薛明月吴孟泉郑龙啸丁志政王盛臣谢爱民刘佳燕丁敏鲁东大学资源与环境工程学院山东烟台264000 栖霞市自然资源和规划局山东烟台265300 烟台市土地储备和利用中心山东烟台260000 山东恒远地理信息技术有限公司山东济南250000

县域尺度下的生态安全格局构建是当前正开展国土空间规划中的重要组成部分,对区域生态文明建设有重要意义。本研究以山东省栖霞市为例,基于“生态源地提取-综合阻力面构建-生态廊道识别”的框架,运用电路理论模拟生态流动与动物迁徙,识... 详细信息

县域尺度下的生态安全格局构建是当前正开展国土空间规划中的重要组成部分,对区域生态文明建设有重要意义。本研究以山东省栖霞市为例,基于“生态源地提取-综合阻力面构建-生态廊道识别”的框架,运用电路理论模拟生态流动与动物迁徙,识别出生态“夹点”、生态“障碍点”和生态修复分区,使生态安全格局的构建更加可视化、精准化、层次化。结果表明:(1)栖霞市共有生态源地11处,生态廊道20条,其中主要生态廊道7条,潜在生态廊道13条;生态源地数量较少,潜在生态廊道较多,反映出栖霞市生态质量有待改善。(2)共识别出生态“夹点”19处,生态“障碍点”16个,体现了栖霞市生态环境的空间不平衡性。(3)栖霞市生态一级改善区面积为318.65 km^(2),二级改善区面积为437.21 km^(2),三级改善区面积为529.44 km^(2),均存在不同程度的生态问题。因此,栖霞市亟需对“夹点”附近地区生态环境进行改善,提高生态廊道通畅性,并分门别类、因地制宜地对“障碍点”、“断裂点”展开修复工作,提高各源地间景观生态连通性,加强各乡镇间生态协调与生态环境整体性,促进地区可持续性发展。

关键词：生态修复电路理论生态廊道栖霞市

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蛋氨酸硒通过ROS/RIP3通路抑制LPS诱导的鸡肝脏组织程序性坏死研究

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黑龙江畜牧兽医 2019年第19期 13-18,177页

作者：赵之嵘屈婧睿郭金铭汪圣晨郑舒方徐世文东北农业大学动物医学学院哈尔滨150030 黑龙江省普通动物疾病防治教育厅重点实验室哈尔滨150030

为了研究蛋氨酸硒对脂多糖(lipopolysaccharides,LPS)诱导的程序性坏死的颉颃作用,试验随机选取200只5月龄健康伊莎褐蛋鸡分成对照组和富硒组,富硒组饲喂添加蛋氨酸硒的饲料60 d后再将每组鸡随机再分为2组,即C组、LPS组和Se组、Se+LPS组... 详细信息

为了研究蛋氨酸硒对脂多糖(lipopolysaccharides,LPS)诱导的程序性坏死的颉颃作用,试验随机选取200只5月龄健康伊莎褐蛋鸡分成对照组和富硒组,富硒组饲喂添加蛋氨酸硒的饲料60 d后再将每组鸡随机再分为2组,即C组、LPS组和Se组、Se+LPS组,以0.2 mg/kg剂量腹腔注射LPS建立LPS诱导的肝脏组织损伤动物模型,应用透射电镜法、H.E.染色法观察肝脏组织程序性坏死状态,实时荧光定量PCR法检测程序性坏死通路相关指标分子受体相互作用蛋白1(receptor interacting protein kinase 1,RIP1)、分子受体相互作用蛋白3(receptor interacting protein kinase 3,RIP3)、混交激酶域蛋白(mixed lineage kinase domain-like protein,MLKL)及髓样分化因子88(myeloid differentiation factor 88,MyD88)、核转录因子(NF-κB)、肿瘤坏死因子-α(tumornecrosis factor-α,TNF-α)、白细胞介素-1β(interleukin-1β,IL-1β)、白细胞介素-18(interleukin-18,IL-18)mRNA的表达情况,试剂盒法检测氧化应激相关指标超氧化物歧化酶(SOD)、丙二醛(MDA)、过氧化氢酶(CAT)、谷胱甘肽(GSH)、谷胱甘肽过氧化物酶(GSH-Px)的活性或含量。结果表明:在光镜下可观察到LPS组鸡肝脏组织切片炎性细胞浸润等现象,Se+LPS组细胞结构基本完整且炎性反应减少;在透射电镜下可观察到,LPS组细胞结构破坏明显,Se+LPS组得到明显改善,细胞结构基本完整。LPS组炎症因子(NF-κB、TNF-α、MyD88)、细胞因子(IL-1β、IL-18)及程序性坏死相关基因(RIP1、RIP3、MLKL)表达量明显升高,Se+LPS组与LPS组相比明显降低,但仍高于C组和Se组;LPS组CAT、GSH-Px、SOD活力和GSH含量低于C组和Se组,Se+LPS组高于LPS组,LPS组MDA含量显著高于C组、Se组和Se+LPS组(P<0.05)。说明蛋氨酸硒可通过影响ROS/RIP3相关信号通路抑制LPS诱导的肝脏组织程序性坏死。

关键词：蛋氨酸硒脂多糖程序性坏死氧化应激 ROS/RIP3 肝脏

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