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Journal of Materials Science & Technology 2023年第4期135卷 54-64页

作者： Xiaotong Feng Lifen Gu Naiyu Wang Qiaosheng Pu Guangli Liu Lanzhou Petrochemical Research Center Petrochemical Research InstitutePetrochinaLanzhou 730060China State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical engineeringLanzhou UniversityLanzhou 730000China

carbon-based adsorption and TiO_(2)-based photocatalysis are both safe and low-cost ways of pollutant *** C-TiO_(2)architectures can effectively improve removal ***,most of those carbon frames only acted as supporting substrates,exhibiting rather limited synergistic action from TiO_(2)and ***,Fe/N co-doped nano-TiO_(2)wrapped on mesoporous carbon spheres with a core-shell structure was *** Fe,N co-doped carbon sphere with a hierarchical structure im-proved the synergy of adsorption and transfer during the photocatalytic *** extra dopant,the Fe and N partly exposed on the surface realized the in-situ migrating into the TiO_(2)shell to en-hance the interface effect,which significantly promoted the photocatalytic efficiency of the ***,the photocatalytic efficiency of the composite was investigated through two typical pollu-tants under visible-light *** degradation efficiencies for rhodamine B and paraxylene were 96.2%in 60 min and 94.1%in 20 min,respectively,with the apparent rate constant of 0.045 min^(-1)and 0.049 min^(-1),8.3 and 11.4 times of that for bare TiO_(2).The composite is likely advantageous for treating diverse environmental pollutants.

关键词： Adsorption-photocatalysis porous carbon Nano-TiO_(2) Core-shell structure Co-doping

Synthesis of MgO-doped ordered mesoporous carbons by Mg^(2+)-tannin coordination for efficient isomerization of glucose to fructose

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Green Energy & Environment 2023年第3期8卷 842-851页

作者： Junyan Fu Feng Shen Xiaoning Liu Xinhua Qi College of Environmental Science and Engineering Nankai UniversityNo.38Tongyan RoadJinnan DistrictTianjin300350China Agro-Environmental Protection Institute Ministry of Agriculture and Rural AffairsNo.31Fukang RoadNankai DistrictTianjin300191China

In-situ MgO-doped ordered mesoporous carbon(OMC@MgO)was fabricated by formaldehyde-free self-assembly method,in which biomass-derived tannin was used as carbon precursor replacing fossil-based phenolics,Mg^(2+)as both cross-linker and precursor of catalytic *** to~20 wt% MgO could be doped in the carbon skeleton with good dispersion retaining well-ordered mesoporous structures,while more MgO content(35 wt%)led to the failing in the formation of ordered mesoporous *** OMC@MgO possessed a high specific surface area(298.8 m^(2) g^(-1)),uniform pore size distribution(4.8 nm)and small crystallite size of MgO(1.73 nm)due to the confinement effect of ordered mesoporous *** OMC@MgO as the heterogeneous catalyst,a maximum fructose yield of 32.4% with a selectivity up to 81.1%was achieved from glucose in water(90℃,60 min),which is much higher than that obtained using the MgO doped active carbon via conventional post-impregnation method(26.5%yield with 58.3% selectivity).Higher reaction temperature(>90℃)resulted in decrease of selectivity due to the formation of *** designed OMC@MgO displayed tolerant to high initial glucose concentrations(10 wt%)and could remain good recyclability without significant loss of activity for three cycles.

关键词： Glucose Fructose Isomerization porous carbon Biomass Catalysis

porous Organic Frameworks-derived porous carbons with Outstanding Gas Adsorption Performance

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Chemical Research in Chinese Universities 2018年第3期34卷 338-343页

作者： YAN Tingting XING Guolong DAS Saikat BEN Teng QIU Shilun College of Chemistry Jilin University Changchun 130012 P. R. China

A series of porous carbon materials was synthesized via high temperature pyrolysis from well-defined and thermally stable precursors, namely porous organic frameworks（POFs）, in inert atmosphere. The porous carbon materials showed enhanced gas adsorption capacities together with increased heat of adsorption and stronger affinity between the frameworks and the gases as compared to the precursor materials. To exemplify, sample C-POF-TBBP-1000 with a high BET surface area of 1290 m^2/g can adsorb 2.8 mmol/g CH4（273 K, 101.325 kPa）, 5.4 mmol/g CO2（273 K, 101.325 kPa） and 2.2% H2（mass fraction, 77 K, 101.325 kPa）, thereby surpassing most other porous adsorbent materials reported till date. The study highlights the potential of porous carbons derived from novel porous organic framework structures for gas adsorption applications.

关键词： porous organic framework Gas adsorption Pyrolysis porous carbon

Metal-Organic Frameworks Derived porous carbons： Syntheses, Porosity and Gas Sorption Properties

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Chinese Journal of Chemistry 2016年第2期34卷 157-174页

作者： Xiaokun Pei Yifa Chen Siqing Li Shenghan Zhang Xiao Feng Junwen Zhou Bo Wang Key Laboratory of Cluster Science Ministry of Education of China Beijing Key Laboratory of Photoelectronicl Electrophotonic Conversion Materials School of Chemistry Beijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 China

porous carbon materials derived from metal-organic frameworks （MOFs） have been brought into stage due to the intrinsic advantages of MOFs such as high porosity and tailorable structure diversity, which might provide infinite possibility in producing porous carbons with diverse structures and various decorations. Inherited from MOFs, the porosity in carbon materials is an important factor to evaluate the performances of porous carbons （e.g. gas sorption properties, electrochemical and catalytic behaviors）. Factors that affect the porosity of porous carbon mate- rials are mainly focused on the porosity of pristine MOFs, additives and conducting conditions. However, during past decades there were still no systematical reports on the influence factors of porosity in MOFs derived porous carbon materials and corresponding gas sorption properties. In this review, we will summarize the performances of MOF-derived carbon materials （i.e. non-doped porous carbons, heteroatoms doped porous carbons, metal/metal oxide decorated porous carbons） and give a detailed discussion about the connections between the properties and four major effects （calcination temperature, loading of additional precursor, post-synthetic treatment as well as intrinsic properties of MOFs）.

关键词： porous carbon metal-organic frameworks carbonization adsorption surface area

One-step scalable preparation of N-doped nanoporous carbon as a high-performance electrocatalyst for the oxygen reduction reaction

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Nano Research 2013年第4期6卷 293-301页

作者： Zhenyu Liu Guoxin Zhang Zhiyi Lu Xiuyan Jin Zheng Chang Xiaoming Sun State Key Laboratory of Chemical Resource Engineering P. O. Box 98 Beijing University of Chemical Technology Beijing 100029 China

N-doped porous carbon materials have been prepared by a simple one-step pyrolysis of ethylenediaminetetraacetic acid （EDTA） and melamine in the presence of KOH and Co（NO3）2·6H20. The combination of the high specific area （1,485 m2.g-l）, high nitrogen content （10.8%） and suitable graphitic degree results in catalysts exhibiting high activity （with onset and half-wave potentials of 0.88 and 0.79 V vs the reversible hydrogen electrode （RHE）, respectively） and four-electron selectivity for the oxygen reduction reaction （ORR） in alkaline medium---comparable to a commercial Pt/C catalyst, but far exceeding Pt/C in stability and durability. Owing to their superb ORR performance, low cost and facile preparation, the catalysts have great potential applications in fuel cells, metal-air batteries, and ORR-related electrochemical industries.

关键词： oxygen reductionreaction nitrogen-doping porous carbon

Nitrogen and phosphorous co-doped hierarchical meso–microporous carbon nanospheres with extraordinary lithium storage for highperformance lithium-ion capacitors

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Science China Materials 2022年第9期65卷 2363-2372页

作者： Tong Li Jianjun Zhang Chongxing Li Han Zhao Jing Zhang Zhao Qian Longwei Yin Rutao Wang Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of EducationSchool of Materials Science and EngineeringShandong UniversityJinan 250061China Shandong Key Laboratory for Special Silicon-containing Material Advanced Materials InstituteQilu University of Technology(Shandong Academy of Sciences)Jinan 250014China Suzhou Institute of Shandong University Suzhou 215123China CAS Key Laboratory of carbon Materials Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China

Lithium-ion capacitors(LICs),consisting of a battery-like negative electrode and a capacitive porous-carbon positive electrode,deliver more than twice the energy density of electric double-layer ***,their wide application suffers from low energy density and reduced cycle life at high ***,hierarchical meso±microporous carbon nanospheres with a highly disordered structure and nitrogen/phosphorous co-doped properties were synthesized through a facile template *** hierarchical porous structure facilitates rapid ion transport,and the highly disordered structure and high heteroatom content provide abundant active sites for Li+charge *** experiments demonstrated that the carbon nanosphere anode delivers large reversible capability,greatly improves rate capability and exhibits excellent cycle *** LIC fabricated with the carbon nanosphere anode and an activated carbon cathode yields a high energy density of 103 W h kg^(-1),an extremely high power density of 44,630 W kg^(-1),and longterm cyclability of over 10,000 *** work presents how structural control of carbon materials at the nano/atomic scale can significantly enhance electrochemical performance,enabling new opportunities for the design of high-performance energy-storage devices.

关键词： lithium-ion capacitors porous carbon anode heteroatoms doping energy storage devices

钴纳米颗粒嵌入的分级多孔碳正极用于高性能锂硫电池

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Science China Materials 2023年第12期66卷 4587-4594页

作者：付莅超刘大鹏左鑫涛于浩涵付泽瑞张瑜 Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191China

锂硫电池理论能量密度大、成本低廉,被认为是最有前景的电化学储能系统之一.然而,硫和放电产物硫化锂的低电导率,充放电时的体积膨胀,以及多硫化锂的穿梭效应严重影响了其可逆容量和循环性能.本文采用了一种简单的模板法制备了Co纳米颗... 详细信息

锂硫电池理论能量密度大、成本低廉,被认为是最有前景的电化学储能系统之一.然而,硫和放电产物硫化锂的低电导率,充放电时的体积膨胀,以及多硫化锂的穿梭效应严重影响了其可逆容量和循环性能.本文采用了一种简单的模板法制备了Co纳米颗粒嵌入的分级多孔碳网络(Co-NHPC).通过合理结构设计,以及原位生成的Co纳米颗粒的嵌入,Co-NHPC表现出很强的对LiPSs的吸附和催化转化能力.结果表明,Co-NHPC在0.2 C时的初始可逆容量为1478.6 mA h g^(−1),经过500次循环后,在1和5 C下仍可分别保留674.9和451.6 mA h g^(−1)的可逆容量.

关键词： lithium-sulfur battery cathode hierarchical structure porous carbon

Performance-enhanced and cost-effective triboelectric nanogenerator based on stretchable electrode for wearable SpO2 monitoring

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Nano Research 2022年第3期15卷 2465-2471页

作者： Huamin Chen Wei Yang Cheng Zhang Mingqiang Wu Wenjie Li Yuxiao Zou Longfeng Lv Hualiang Yu Huizhen Ke Ruping Liu Yun Xu Jun Wang Zhou Li Fujian Key Laboratory of Functional Marine Sensing Materials Center for Advanced Marine Materials and Smart SensorsMinjiang UniversityFuzhou 350108China CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 100083China Institute of Semiconductors Chinese Academy of SciencesBeijing 100083China Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology Beijing 100083China Beijing Institute of Graphic Communication Beijing 102600China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049China Fujian Key Laboratory of Novel Functional Textile Fibers and Materials Minjiang UniversityFuzhou 350108China

Recently,stretchable and wearable health monitoring equipment has greatly improved human’s daily life,which sets higher demands for portable power source in stretchability,sustainability,and *** this work,we proposed a stretchable triboelectric nanogenerator(TENG)based on stretchable poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS)/porous carbon hybrid for oxyhemoglobin saturation(SpO2)*** combine advantages of carbon material for its high conductivity and organic electrode for its high stretchability,we spin-coated a solution of PEDOT:PSS/porous carbon onto a plasma-treated pre-stretched Ecoflex film to fabricate a stretchable electrode with rough *** to its roughness and high potential difference with the dielectric material,the stretchable-electrode-based TENG exhibited better performance compared to the pristine TENG based on carbon or PEDOT:PSS *** output voltage and current reached up to 51.5 V and 13.2μA as the carbon concentration *** importantly,the performance further increased under large strain(100%)which is suitable for wearable ***,the device demonstrated its application potential for powering a flexible blood oxygen *** simple and cost-effective method can enhance the stretchability and stability of organic/inorganic electrode-based TENG,which paves the development of high-performance stretchable TENG.

关键词： triboelectric nanogenerator stretchable porous carbon blood oxygen poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS) wearable electronic

Preparation of graphene-based active carbons from petroleum asphalt for high-performance supercapacitors without added conducting materials

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Science China(Technological Sciences) 2022年第12期65卷 2866-2873页

作者： WANG Bin XIE PengYi ZHANG Miao ZHANG HongTao CHEN YongSheng School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China School of Chemistry and Materials Science Guangdong University of EducationGuangzhou 510303China The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials Institute of Polymer ChemistryCollege of ChemistryNankai UniversityTianjin 300071China Research Center for Advanced Information Materials(CAIM) Huangpu Research&Graduate School of Guangzhou UniversityGuangzhou 510555China

Graphene-based active carbons(G-ACs) with a high specific surface area and high conductivity are promising electrode materials for high-performance supercapacitors. Typically, however, syntheses of the G-ACs call for expensive raw materials and are cumbersome. Here, the G-ACs are obtained by direct chemical activation of petroleum asphalt. The highest specific surface area of the prepared G-ACs is 3505 m^(2)/g and the corresponding conductivity is 32 S/m. Electrodes fabricated using the as-prepared G-ACs, i.e., without any conductive additives, demonstrate high specific capacitance and high rate performance. The specific capacitances of optimized G-ACs, as measured in a 1 mol/L TEABF_(4)/AN electrolyte and the neat ionic liquid EMIMBF_(4), are 155 and 176 F/g at 1 A/g, providing the high energy density of 39.2 and 74.9 W h/kg, respectively. In addition,the G-ACs exhibited excellent rate capability with a negligible capacitance decay from 0.5 to 10 A/g in both 1 mol/L TEABF_(4)/AN and neat EMIMBF_(4) electrolytes. Furthermore, the optimized G-AC has a high energy density(68.5 W h/kg) at a relatively high power density(8501 W/kg), indicating that it holds potential for application in green energy storage.

关键词： supercapacitor asphalt porous carbon rate capability

Cu_(1)-B dual-active sites catalysts for the efficient dehydrogenative coupling and CO_(2)electroreduction

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Nano Research 2023年第4期16卷 4582-4588页

作者： Konglin Wu Zhaobin Fang Cheng Peng Yining Zhang Binbin Jiang Yanshang Kang Zhiming Chen Mingfu Ye Yuxi Wu Xianwen Wei Shoujie Liu Sha Li Jian Zhang Key Laboratory of Metallurgical Emission Reduction&Resources Recycling of Ministry of Education Anhui University of TechnologyMaanshan 243002China Anhui Laboratory of Clean Catalytic Engineering School of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhu 241000China Institute of Clean Energy and Advanced Nanocatalysis(iClean) School of Chemistry and Chemical EngineeringAnhui University of TechnologyMaanshan 243002China Chemistry and Chemical Engineering Guangdong Laboratory Shantou 515063China Institute of Molecular Plus Tianjin UniversityTianjin 300072China School of Chemistry and Chemical Engineering Anqing Normal UniversityAnqing 246001China Jiangxi Province Engineering Research Center of Ecological Chemical Industry Jiujiang UniversityJiujiang 332005China College of Chemistry and Materials Engineering Wenzhou UniversityWenzhou 325035China

Dual-active sites(DASs)catalysts have positive potential applications in broad fields because of their specific active sites and synergistic catalytic ***,the controllable synthesis and finely regulating the activity of such catalysts has become a hot research area for *** this work,we developed a pyrolysis-etching-hydrogen activation strategy to prepare the DASs catalysts involving single-atom Cu and B on N-doped porous carbon material(Cu_(1)-B/NPC).Numerous systematic characterization and density functional theoretical(DFT)calculation results showed that the Cu and B existed as Cu-N4 porphyrinlike unit and B-N_(3)unit in the obtained *** calculations further revealed that single-atom Cu and B sites were linked by bridging N atoms to form the Cu_(1)-B-N6 *** Cu_(1)-B/NPC catalyst was more effective than the single-active site catalysts with B-N_(3)sites in NPC(B/NPC)and Cu-N4 porphyrin-like sites in NPC(Cu_(1)/NPC),respectively,for the dehydrogenative coupling of dimethylphenylsilane(DiMPSH)with various alcohols,performing the great activity(>99%)and selectivity(>99%).The catalytic performances of the Cu_(1)-B/NPC catalyst remained nearly unchanged after five cycles,also indicating its outstanding *** calculations showed that the Cu_(1)-B-N6 dual-sites exhibited the lowest energy profile on the potential energy surface than that of sole B-N_(3)and Cu-N4 porphyrin-like ***,the rate-limiting step of dehydrogenation of DiMPSH on Cu_(1)-B-N6 dual-sites also showed a much lower activation energy than the other two single *** from the superiority of the Cu_(1)-B-N6 dual-sites,the Cu_(1)-B/NPC catalyst can also be used for CO_(2)electroreduction to produce ***,DASs catalysts are promising to achieve multifunctional catalytic properties and have aroused positive attention in the field of catalysis.

关键词： dual-active sites single-atom catalysis porous carbon dehydrogenative coupling