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Three-dimensional macroscopic absorbents: From synergistic effects to advanced multifunctionalities

Nano Research 2024年第3期17卷 1952-1983页

作者： Shijie Zhang Di Lan Xingliang Chen Yueyuan Gu Junwen Ren Suxuan Du shichang cai Xiaomiao Zhao Zhiwei Zhao Guanglei Wu School of Material Science and Engineering Henan University of TechnologyZhengzhou 450001China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002China Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province Shaoxing UniversityShaoxing 312000China School of Resources Environment and Safety Engineering University of South ChinaHengyang 421001China College of Electrical Engineering Sichuan UniversityChengdu 610065China Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China Key Laboratory of Engineering Dielectrics and Its Application Ministry of EducationSchool of Electrical&Electronic EngineeringHarbin University of Science and TechnologyHarbin 150080China

The accelerated arriving of 5G era has brought a new round of intelligent transformation which will completely emancipate smart terminal *** the subsequent deleterious effect of electromagnetic wave on electronic devices is increasingly serious,driving the growth of next-generation electromagnetic wave *** a tactful combination of components and structures,three-dimensional(3D)macroscopic absorbents with fascinating synergy afford exceptional electromagnetic wave absorption,and tremendous efforts have been devoted to this ***,in terms of macroscopic absorbents and their synergistic effect,few reviews are proposed to comb the latest achievements and detailed *** review article focuses on the synergistic effect of macro-architectured absorbents mainly including structure-induced synergy,structure-components synergy,and multiple-components induced *** then the potential construction principles and strategies of macroscopic absorbents are ***,the key information for structures and components manipulation including nano-micro design and components regulation is further dissected by critically selected cutting-edge 3D macroscopic ***,a brief summary of multifunctional electromagnetic wave absorbents(EWAs)-based macroscopic structures is ***,the development prospects and challenges of these materials are discussed.

关键词： three-dimensional(3D)structures synergistic effect electromagnetic wave absorption absorption mechanism multifunction

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燃气工程项目中燃气输配技术研究

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石化技术 2024年第2期31卷 116-118页

作者：蔡世长山西天然气有限公司山西太原030000

以某天然气有限公司某分输站安全生产情况为例,深入分析燃气工程项目中常见的燃气输配技术,包括输配系统压力级制和储气调峰技术、安全供气技术等,并从设备、材料以及技术等角度出发,提出可行的燃气输配技术应用措施。

关键词：燃气工程项目燃气输配技术应用

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Rational design of hierarchically porous Fe-N-doped carbon as efficient electrocatalyst for oxygen reduction reaction and Zn-air batteries

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Nano Research 2021年第12期14卷 4768-4775页

作者： Zihan Meng Neng Chen shichang cai Jiawei Wu Rui Wang Tian Tian Haolin Tang Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan528200China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070China School of Material Science and Engineering Henan University of TechnologyZhengzhou450001China

The rational design and construction of hierarchically porous nanostructure for oxygen reduction reaction (ORR) electrocatalysts is crucial to facilitate the exposure of accessible active sites and promote the mass/electron transfer under the gas-solid-liquid triple-phase condition. Herein, an ingenious method through the pyrolysis of creative polyvinylimidazole coordination with Zn/Fe salt precursors is developed to fabricate hierarchically porous Fe-N-doped carbon framework as efficient ORR electrocatalyst. The volatilization of Zn species combined with the nanoscale Kirkendall effect of Fe dopants during the pyrolysis build the hierarchical micro-, meso-, and macroporous nanostructure with a high specific surface area (1,586 m^(2)·g^(−1)), which provide sufficient exposed active sites and multiscale mass/charge transport channels. The optimized electrocatalyst exhibits superior ORR activity and robust stability in both alkaline and acidic electrolytes. The Zn-air battery fabricated by such attractive electrocatalyst as air cathode displays a higher peak power density than that of Pt/C-based Zn-air battery, suggesting the great potential of this electrocatalyst for Zn-air batteries.

关键词： hierarchically porous structure Fe-N-doped carbon electrocatalysts oxygen reduction reaction Zn-air batteries

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An efficient bifunctional electrocatalyst derived from layer-by-layer self-assembly of a three-dimensional porous Co-N-C@graphene

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Science Bulletin 2019年第14期64卷 968-975页

作者： shichang cai Rui Wang William M. Yourey Junsheng Li Haining Zhang Haolin Tang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China College of Engineering Penn State University Hazleton PA 18202 USA

Three-dimensional (3D) porous carbon-based materials with tunable composition and microstructure are of great interest for the development of oxygen involved electrocatalytic reactions. Here, we report the synthesis of 3D porous carbon-based electrocatalyst by self-assembling Co-metal organic frameworks (MOF) building blocks on graphene via a layer-by-layer technique. Precise control of the structure and morphology is achieved by varying the MOF layer to tune the electrocatalytic properties. The as-produced electrocatalyst exhibits an excellent catalytic activity for the oxygen reduction reaction in 0.1molL^-1 KOH, showing a high onset potential of 0.963V vs. reversible hydrogen electrode (RHE) and a low tafel slope of 54mVdec^-1, compared to Pt/C (0.934V and 52mVdec^-1, respectively). Additionally, it shows a slightly lower potential vs. RHE (1.72V) than RuO2 (1.75V) at 10mAcm^-2 in an alkaline electrolyte. A rechargeable Zn-air battery based on the as-produced 3D porous catalyst demonstrates a high peak power density of 119mWcm^-2 at a cell voltage of 0.578V while retaining an excellent stability over 250 charge-discharge cycles.

关键词： Oxygen reduction reaction Cobalt Three-dimensional Oxygen evolution reaction Graphene

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Nitrogen doped porous carbon-based bifunctional oxygen electrocatalyst with controllable phosphorus content for zinc-air battery

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Nano Research 2023年第4期16卷 5887-5893页

作者： shichang cai Zihan Meng Gaojie Li Yu An Yapeng Cheng Erjun Kan Bo Ouyang Haining Zhang Haolin Tang School of Material Science and Engineering Henan University of TechnologyZhengzhou 450001China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong LaboratoryXianhu Hydrogen ValleyFoshan 528200China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Applied Physics and Institution of Energy and Microstructure Nanjing University of Science and TechnologyNanjing 210094China

The controllable construction of non-noble metal based bifunctional catalysts with high activities towards oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is of great significance,but remains a ***,we reported an effective method to synthesize cobalt-nitrogen doped mesoporous carbon-based bifunctional oxygen electrocatalyst with controllable phosphorus content(Co-N-P_(X)-MC,X=0.5,1.0,1.5,2.0).The mesoporous carbon substrate endowed the asprepared samples with more exposed active surface(236.50 m^(2)·g^(−1))and the most appropriate doping ratio of phosphorus had been investigated to be 1.5(Co-N-P1.5-MC).For ORR,Co-N-P1.5-MC exhibited excellent catalytic activity with more positive onset potential(1.01 V)and half-wave potential(0.84 V)than the other *** OER,Co-N-P1.5-MC also showed a low overpotential of 415 *** experimental results and density-functional theory(DFT)calculations,the outstanding bifunctional catalytic performance of Co-N-P1.5-MC was due to the synergistic cooperation between the P and N dopants,which could reduce the reaction barriers and was favorable for ORR and ***,the Zn-air battery using Co-N-P1.5-MC as the cathode showed remarkable battery performance with high stability(could operate stably for over 160 h at 10 mA·cm^(−2))and maximum power density(119 mW·cm^(−2)),demonstrating its potential for practical *** work could provide significant enlightenment towards the design and construction of bifunctional oxygen electrocatalyst for next-generation electrochemical devices.

关键词： cobalt-nitrogen doped porous carbon phosphorus doping bifunctional electrocatalyst oxygen reduction reaction(ORR)and oxygen evolution reaction(OER) Zn-air battery

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Meta-analysis:The relationship of expression level of long non-coding RNA GAS5 and prognosis in cancers

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解剖学杂志 2021年第S1期44卷 199-200页

作者： Yi Liming cai shichang Department of Human Anatomy Hunan University of MedicineHuaihua 418000

lncRNA GAS5(growth of arrest-speeific transeript 5)controls the occurrence,development and prognoses of cancer *** order to explore the association bet ween dy sregulated expression of GAS5 and patient prognosis,we performed a *** were extracted from the Databases,including PubMed,Web of Science,EMBASE,Cochrane Library,and *** literatures were cllcted on the correlation between lncRNA GAS5 expression and cancer *** retrieval time was from inception to February *** meta-analysis was performed with Stata Statistical Software version *** to the inclusion and exclusion criteria,a total of 917 patients from 11 studies were included in this meta-analysis.

关键词： GAS5 prognosis analysis.

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Meta-analysis:The relationship of expression level of long non-coding RNA GAS5 and prognosis in cancers

Meta-analysis:The relationship of expression level of long n...

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中国解剖学会2021年年会

作者： Yi Liming cai shichang Department of Human Anatomy Hunan University of Medicine

lncRNA GAS5 (growth of arrest-specific transcript 5) controls the occurrence,development and prognoses of cancer *** order to explore the association between dysregulated expression of GAS5 and patient prognosis,we performed a *** were extracted from the Databases, including PubMed,Web of Science,EMBASE,Cochrane Library,and *** literatures were collected on the correlation between lncRNA GAS5 expression and cancer prognostic.

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Study about bone marrow hematopoiesis cell cycle and cell apoptosis of Buzhong Yiqi-Pill on myelosuppressed mice

Study about bone marrow hematopoiesis cell cycle and cell ap...

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中国解剖学会2021年年会

作者： Chen Yiping cai shichang Department of Human Anatomy Hunan University of Medicine

This experiment was designed to study about the regulation and mechanisms of Buzhong Yiqi-Pill on bone marrow hematopoietic *** marrow inhibition of mouse model was established to simulate blood deficiency ***-solid a...

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罗近溪的“格物”说——从“格物”之悟谈起

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中国哲学史 2006年第2期 91-99页

作者：蔡世昌华北电力大学人文与社会科学学院

本文从罗近溪早年的“格物”之悟出发,详细考察了罗近溪“格物”说的具体内涵,认为罗近溪的“格物”说奠基在他的“大学”说和“知止”说之上,一方面阐扬了“万物一体”的思想,另一方面规定了明明德亲民止于至善的道德———政治实践活... 详细信息

本文从罗近溪早年的“格物”之悟出发,详细考察了罗近溪“格物”说的具体内涵,认为罗近溪的“格物”说奠基在他的“大学”说和“知止”说之上,一方面阐扬了“万物一体”的思想,另一方面规定了明明德亲民止于至善的道德———政治实践活动的先后程序。罗近溪的“格物”说构成他解读《大学》和儒家经典的基本视角,在儒家经典诠释学和儒学发展史上具有重要的地位和意义。

关键词：罗近溪大学格物万物一体知止

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Bimetal-organic framework-derived carbon nanocubes with 3D hierarchical pores as highly efficient oxygen reduction reaction electrocatalysts for microbial fuel cells

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Science China Materials 2021年第12期64卷 2926-2937页

作者： Neng Chen Zihan Meng Rui Wang shichang cai Weibin Guo Haolin Tang Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Noble metal-free and highly efficient electrocatalytic materials with hierarchically porous structures continue to be studied for the oxygen reduction reaction(ORR) in microbial fuel cells(MFCs). We report bimetal-organic framework(bi-MOF)-derived nanocubic Swiss cheese-like carbons with a novel three-dimensional hierarchically porous structure(3D Co-N-C) prepared by utilizing cetyltrimethylammonium bromide(CTAB) as a structure-directing agent to control the formation of a nanocubic skeleton, and silica spheres as a template to form a mesoporous structure. The elemental composition and chemical morphology of this material can be tuned through the Zn/Co ratio to optimize its ORR catalytic activity. The optimized 3D Co-N-C displays excellent ORR catalytic performance(half-wave potential as high as 0.754 V vs. reversible hydrogen electrode and diffusion-limiting current density of 5.576 mA cm^(-2)) in 0.01 mol L^(-1) phosphate-buffered saline(PBS electrolyte),showing it can compete with the commercial 20 wt% Pt/C catalysts. The catalytic capability and long-term durability of 3D Co-N-C as an air-filled cathode electrocatalyst in an MFC device are tested, showing that the 3D CoNC-MFC can reach a high power density of 1257 mW m^(-2) and provide a competitive voltage during a periodic feeding operation for 192 h;these values are much higher than those of the Pt/C-MFC.

关键词： Co-N-doped carbon structure-oriented approach 3D hierarchically porous nanocubes oxygen reduction reaction microbial fuel cells

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