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Interfacial built-in electric field and crosslinking pathways enabling WS_(2)/ti_(3)C_(2)T_(x) heterojunction with robust sodium storage at low temperature

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Journal of Energy Chemistry 2024年第2期89卷 635-645,I0014页

作者： Jiabao Li Shaocong Tang Jingjing Hao Quan Yuan tianyi Wang Likun Pan Jinliang Li Shenbo yang Chengyin Wang College of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002JiangsuChina Shanghai Key Laboratory of Magnetic Resonance School of Physics and Electronic Science East China Normal UniversityShanghai 200241China Siyuan Laboratory Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy MaterialsGuangdong Provincial Key Laboratory of Nanophotonic ManipulationDepartment of PhysicsJinan UniversityGuangzhou 510632GuangdongChina Hongzhiwei Technology(Shanghai)CO.LTD Shanghai 200241China

Developing efficient energy storage for sodium-ion batteries(SIBs)by creating high-performance heterojunctions and understanding their interfacial interaction at the atomic/molecular level holds promise but is also ***,sluggish reaction kinetics at low temperatures restrict the operation of SIBs in cold ***,cross-linking nanoarchitectonics of WS_(2)/ti_(3)C_(2)T_(x) heterojunction,featuring built-in electric field(BIEF),have been developed,employing as a model to reveal the positive effect of heterojunction design and BIEF for modifying the reaction kinetics and electrochemical ***,the theoretical analysis manifests the discrepancy in work functions leads to the electronic flow from the electron-rich ti_(3)C_(2)T_(x) to layered WS_(2),spontaneously forming the BIEF and“ion reservoir”at the heterogeneous ***,the generation of cross-linking pathways further promotes the transportation of electrons/ions,which guarantees rapid diffusion kinetics and excellent structure ***,superior sodium storage performance is obtained for the WS_(2)/ti_(3)C_(2)T_(x) heterojunction,with only 0.2%decay per cycle at 5.0 A g^(-1)(25℃)up to 1000 cycles and a high capacity of 293.5 mA h g^(-1)(0.1A g^(-1)after 100 cycles)even at-20℃.Importantly,the spontaneously formed BIEF,accompanied by“ion reservoir”,in heterojunction provides deep understandings of the correlation between structure fabricated and performance obtained.

关键词： WS_(2)/ti_(3)C_(2)T_(x)heterojunction Built-in electric field Ion reservoir Reaction kinetics Sodium storage performance at low temperature

MOF-derived Se doped MnS/ti_(3)C_(2)T_(x) as cathode and Zn-ti_(3)C_(2)T_(x) membrane as anode for rocking-chair zinc-ion battery

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Nano Research 2024年第4期17卷 2781-2789页

作者： Kaisheng Sun Zemao Xiao Yunfei Shen Heng Lv Jianpeng Zhu Jianxiang Pang yang Zheng Wenwen Kong Long Chen School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering Shihezi UniversityShihezi 832003China CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Key Laboratory of Electronic Information Materials and DevicesCenter of Materials Science and Optoelectronics EngineeringXinjiang Technical Institute of Physics and Chemistry of CASUrumqi 830011China

Mn-based zinc ion battery has the advantages of low cost and high performance,which makes it the promising energy storage ***,the poor conductivity and the agglomeration in the synthesis process of manganese-based materials restrict the performance of ***,the Se-doped MnS/ti_(3)C_(2)T_(x)(Se-MnS/ti_(3)C_(2)T_(x))composite material derived from Mn-based metal-organic framework is *** tests show that Se-doped could generate S defects and enhance the electrochemical activity of *** the same time,the introduction of ti_(3)C_(2)T_(x) substrate is conducive to exposing more sulfur defects and improving the utilization rate of *** the mechanism study,it is found that Se-MnS/ti_(3)C_(2)T_(x) is transformed into S/Se co-doped Mn3O_(4) at the first charge,which innovatively elucidated the behavior of S/Se during *** the electrochemical performance test,the specific capacity can reach 74.7 mAh·g^(-1) at 5.0 A·g^(-1).In addition,the Zn-ti_(3)C_(2)T_(x) membrane electrode is prepared by vacuum filtration as the zinc-poor anode,which is assembled into the rocking chair full battery to avoid dendrite growth and exhibit excellent rate *** addition of Zn2+weakens the electrostatic repulsion between the interlayers of MXene,and the formation of the folded morphology aids the penetration of the *** 1.0 A·g^(-1),the capacity can reach 50.6 mAh·g^(-1).This work is helpful to promote the research and development of the reaction mechanism of manganese based rocking chair batteries.

关键词： rocking-chair zinc-ion battery MnS Zn-ti_(3)C_(2)T_(x) membrane Se doped ti_(3)C_(2)T_(x) composite

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铬渣中Cr(Ⅵ)在盐溶液中的浸出机理

西北农林科技大学学报（自然科学版） 2007年第8期35卷 151-154页

作者：景学森杨亚提蔡木林西北农林科技大学理学院陕西杨凌712100 中国环境科学研究院北京100012

为了探索新的铬渣解毒技术,利用浸提交换法对铬渣中Cr(Ⅵ)在NaCl、NaOH、Na3PO4、NaNO3、Na2CO3和Na2SO4溶液中的浸出规律进行了比较研究。结果表明,在NaCl、NaOH、Na3PO4和NaNO3溶液中,Cr(Ⅵ)的浸出率无明显提高,而Na2SO4溶液和Na2CO3... 详细信息

为了探索新的铬渣解毒技术,利用浸提交换法对铬渣中Cr(Ⅵ)在NaCl、NaOH、Na3PO4、NaNO3、Na2CO3和Na2SO4溶液中的浸出规律进行了比较研究。结果表明,在NaCl、NaOH、Na3PO4和NaNO3溶液中,Cr(Ⅵ)的浸出率无明显提高,而Na2SO4溶液和Na2CO3溶液对Cr(Ⅵ)的浸出则有显著的促进作用,当Na2SO4和Na2CO3溶液浓度为0.25 mol/L时,Cr(Ⅵ)浸出率分别为56%和77%,并且Cr(Ⅵ)的浸出率随阴离子浓度的增加而增加,浸出率曲线符合Langmuir吸附公式,表明Na2SO4和Na2CO3对铬渣中Cr(Ⅵ)的浸出机理为离子交换;吸附平衡常数的拟合值表明,Na2SO4溶液对Cr(Ⅵ)的浸出能力大于Na2SO4溶液。

关键词：铬渣盐溶液浸出机理离子交换

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中国城市中小学生营养状况认知现状分析

中国公共卫生 2019年第9期35卷 1170-1173页

作者：王璐璐杨媞媞赵栋张钰斌任时吴立强陈暕贾亮李印东王瑶张倩中国疾病预防控制中心营养与健康所北京100050 浙江省疾病预防控制中心甘肃省疾病预防控制中心辽宁省疾病预防控制中心河北省石家庄市新华区疾病预防控制中心青岛市疾病预防控制中心广西自治区疾病预防控制中心北京市顺义区疾病预防控制中心成都市疾病预防控制中心

目的了解中国不同地区城市中小学生营养状况及认知现状,为儿童肥胖防治提供科学依据。方法于2017年3—6月采用分层随机整群抽样方法,在7个“营养校园”试点区县抽取1755名8~17岁城区学生。测量晨起空腹身高、体重,通过问卷了解学生对营... 详细信息

目的了解中国不同地区城市中小学生营养状况及认知现状,为儿童肥胖防治提供科学依据。方法于2017年3—6月采用分层随机整群抽样方法,在7个“营养校园”试点区县抽取1755名8~17岁城区学生。测量晨起空腹身高、体重,通过问卷了解学生对营养状况的认知和满意度。结果调查学生的营养不良和超重肥胖检出率分别为11.5%和23.4%,分别有27.5%、49.0%、23.6%的学生认为自己营养不良、正常、超重肥胖。仅59.4%的学生对营养状况的认知与实际一致,27.9%低估,12.7%高估,一致性较差(Kappa=0.32,P<0.01);不同地区和营养状况学生对营养状况的认知不同。仅56.6%的学生对自己的体形感到满意,不同地区、性别、年级和营养状况学生对自己体形的满意度不同。结论学生对营养状况的认知存在偏差,低估现象较为普遍,对自己体形的满意度较低。

关键词：中小学生营养状况认知满意度

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14例儿童肝母细胞瘤综合治疗的疗效观察

中国当代儿科杂志 2009年第6期11卷 456-459页

作者：魏艇杨体泉罗意革董淳强广西医科大学第一附属医院小儿外科广西南宁530021

目的肝母细胞瘤是儿童时期最为常见的原发性肝脏恶性肿瘤。新辅助化疗(手术(术后化疗已成为肝母细胞瘤治疗的基本原则。该文旨在总结肝母细胞瘤综合治疗的疗效,进而探讨合理治疗的策略。方法回顾性分析14例儿童肝母细胞瘤患者的临床资料... 详细信息

目的肝母细胞瘤是儿童时期最为常见的原发性肝脏恶性肿瘤。新辅助化疗(手术(术后化疗已成为肝母细胞瘤治疗的基本原则。该文旨在总结肝母细胞瘤综合治疗的疗效,进而探讨合理治疗的策略。方法回顾性分析14例儿童肝母细胞瘤患者的临床资料,并追踪随访其治疗后的生存状况。结果12例肝母细胞瘤患儿接受全程治疗,中位随访时间为18个月(1.5～74月)。9例无瘤存活,1例死亡,1例肿瘤转移,1例未发现肿瘤残留但术后甲胎蛋白持续不降。结论手术及规范化疗能有效提高儿童肝母细胞瘤患者的生存率。

关键词：肝母细胞瘤化疗手术甲胎蛋白儿童

Diagnosis and management of severe pulmonary and extrapulmonary tuberculosis in critically ill patients:A mini review for clinicians

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World Journal of Critical Care Medicine 2024年第2期13卷 106-115页

作者： Dominic ti Ming Tan Kay Choong See Department of Medicine National University HospitalSingapore 119228Singapore

Among critically ill patients,severe pulmonary and extrapulmonary tuberculosis has high morbidity and ***,it is a diagnostic challenge given its nonspecific clinical symptoms and signs in early stages of the *** addition,management of severe pulmonary and extrapulmonary tuberculosis is complicated given the high risk of drug-drug interactions,drug-disease interactions,and adverse drug *** help clinicians acquire an up-to-date approach to severe tuberculosis,this paper will provide a narrative review of contemporary diagnosis and management of severe pulmonary and extrapulmonary tuberculosis in critically ill patients.

关键词： Tuberculosis Severe tuberculosis Mycobaterium tuberculosis Critical care Intensive care Diagnosis of tuberculosis Management of tuberculosis

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新生儿十二指肠梗阻64例

实用儿科临床杂志 2012年第7期27卷 548-550页

作者：刘强杨体泉董昆董淳强广西医科大学第一附属医院小儿外科南宁530021

目的探讨新生儿先天性十二指肠梗阻的诊断、病理类型及治疗方法。方法对64例新生儿十二指肠梗阻患儿的术前诊断、病理类型、治疗方法及预后进行回顾性分析。其中18例行产前B超筛查。64例均经手术探查,59例术前行上消化道造影。肠旋转不... 详细信息

目的探讨新生儿先天性十二指肠梗阻的诊断、病理类型及治疗方法。方法对64例新生儿十二指肠梗阻患儿的术前诊断、病理类型、治疗方法及预后进行回顾性分析。其中18例行产前B超筛查。64例均经手术探查,59例术前行上消化道造影。肠旋转不良34例(合并肠坏死6例),33例行Ladd手术,4例加做肠切除、肠吻合术;十二指肠闭锁与狭窄12例,7例行隔膜切除及肠壁纵切横缝术,2例行十二指肠端端吻合术;其余3例及环状胰腺5例行十二指肠前壁菱形侧侧吻合术;2种原因梗阻者13例,其中十二指肠闭锁并肠旋转不良6例,十二指肠闭锁并环状胰腺1例,十二指肠闭锁并多发隔膜3例,环状胰腺并肠旋转不良2例,肠旋转不良并幽门隔膜1例,根据患者情况行单一或联合术式。结果行产前B超筛查患儿中12例(12/18,66.7%)怀疑十二指肠梗阻。上消化道造影的临床符合率为98.3%。64例患儿中58例痊愈(治愈率为90.6%),4例医院内死亡,2例放弃治疗。术后并发症主要包括黏连性肠梗阻5例,肠扭转、吻合口狭窄、漏诊多发畸形各1例,其中需要二次手术4例。结论产前B超有助于胎儿高位肠梗阻的早期发现;上消化道造影和B超是诊断十二指肠梗阻的有效方法;早期诊断、合理选择手术方式、避免漏诊及加强围手术期处理是提高治愈率的关键;发生肠扭转并长段肠坏死者预后不佳。

关键词：十二指肠梗阻肠旋转不良婴儿新生

Surviving winter on the Qinghai-Xizang Plateau:Extensive reversible protein phosphorylation plays a dominant role in regulating hypometabolism in hibernating Nanorana parkeri

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Zoological Research 2024年第1期45卷 1-12页

作者： Yong-Gang Niu Deng-Bang Wei Xue-Jing Zhang ti-Sen Xu Xiang-Yong Li Hai-Ying Zhang Zhi-Fang An Kenneth B.Storey Qiang Chen Department of Life Sciences Dezhou UniversityDezhouShandong 253023China State Key Laboratory of Plateau Ecology and Agriculture Qinghai UniversityXiningQinghai 810016China School of Life Sciences Lanzhou UniversityLanzhouGansu 730000China Department of Biology Carleton UniversityOttawaON K1S 5B6Canada

Changes in protein abundance and reversible protein phosphorylation(RPP)play important roles in regulating hypometabolism but have never been documented in overwintering frogs at high *** test the hypothesis that protein abundance and phosphorylation change in response to winter hibernation,we conducted a comprehensive and quantitative proteomic and phosphoproteomic analysis of the liver of the Xizang plateau frog,Nanorana parkeri,living on the Qinghai-Xizang *** total,5170 proteins and 5695 phosphorylation sites in 1938 proteins were *** on proteomic analysis,674 differentially expressed proteins(438 up-regulated,236 down-regulated)were screened in hibernating *** versus summer *** enrichment analysis revealed that higher expressed proteins in winter were significantly enriched in immune-related signaling pathways,whereas lower expressed proteins were mainly involved in metabolic processes.A total of 4251 modified sites(4147 up-regulated,104 down-regulated)belonging to 1638 phosphoproteins(1555 up-regulated,83 down-regulated)were significantly changed in the *** hibernation,RPP regulated a diverse array of proteins involved in multiple functions,including metabolic enzymatic activity,ion transport,protein turnover,signal transduction,and alternative *** changes contribute to enhancing protection,suppressing energy-consuming processes,and inducing metabolic ***,the activities of phosphofructokinase,glutamate dehydrogenase,and ATPase were all significantly lower in winter compared to *** conclusion,our results support the hypothesis and demonstrate the importance of RPP as a regulatory mechanism when animals transition into a hypometabolic state.

关键词： Nanorana parkeri Proteomic Phosphoproteomic Hibernation Reversible protein phosphorylation Metabolism

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R134a外螺纹管水冷冷凝器研究

流体机械 2006年第7期34卷 65-68页

作者：尹斌欧阳惕丁国良上海交通大学上海200030 广东申菱空调设备有限公司广东顺德528313

采用一种新的冷凝换热模型,对R134a外螺纹管水冷冷凝器进行研究。通过样机设计,并在多功能焓差室标准工况下进行试验,由试验数据反推外螺纹管水冷冷凝器的管外平均冷凝换热系数。通过比较发现,冷凝换热系数的模型计算值比试验值大15%。

关键词： R134a 外螺纹管冷凝器