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Green Energy & Environment 2022年第5期7卷 858-899页

作者： Xinyu Luo Wenchao Peng Yang Li fengbao zhang Xiaobin Fan School of Chemical Engineering and Technology State Key Laboratory of Chemical EngineeringCollaborative Innovation Center of Chemical Science and EngineeringTianjin UniversityTianjin300072China Chemistry and Chemical Engineering Guangdong Laboratory Shantou515031China

As one of the most common cathode materials for aqueous zinc-ion batteries(AZIBs),manganese oxides have the advantages of abundant reserves,low cost,and low ***,the electrochemical mechanism at the cathode of aqueous zinc-manganese batteries(AZMBs) is complicated due to different electrode materials,electrolytes and working *** complicated mechanisms severely limit the research progress of AZMBs system and the design of cells with better ***,the mechanism of AZMBs currently recognized by most researchers according to the classification of the main ions involved in the faradaic reaction is introduced in the *** a series of reasons that affect the electrochemical behavior of the battery are ***,the failure mechanisms of AZMBs over prolonged cycling are discussed,and the current insufficient research areas of the system are explained,along with the direction of further research being prospected.

关键词： battery manganese electrochemical

One-step fabrication of two-dimensional hierarchical Mn_(2)O_(3)@graphene composite as high-performance anode materials for lithium ion batteries

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Journal of Materials Science & Technology 2021年第21期80卷 13-19页

作者： Zhou Zhou Chaoying Ding Wenchao Peng Yang Li fengbao zhang Xiaobin Fan School of Chemical Engineering and Technology State Key Laboratory of Chemical EngineeringCollaborative Innovation Center of Chemical Science and EngineeringTianjin UniversityTianjin300072China

Two-dimensional(2 D) hierarchical Mn_(2)O_(3)@graphene composite is synthesized by a one-step solid-phase reaction. The nanosheets of Mn_(2)O_(3) are vertically grown on few-layered graphene, constructing a unique2 D hierarchical structure. As an anode material for lithium-ion batteries(LIBs), this hierarchical composite displays excellent electrochemical performances, showing an extraordinary reversible discharge capacity of 2125.9 mA hg^(–1). Moreover, a record high reversible capacity of 1746.8 mA hg^(–1) is maintained after 100 cycles at a current density of 100 mA g^(–1), which retains 82.2 % of the initial capacity. Such an outstanding performance could be attributed to its novel structure and the synergistic effects between the Mn_(2)O_(3) and graphene.

关键词： Mn_(2)O_(3) Graphene Anode material 2D hierarchical structure Lithium ion battery

β-Cyclodextrin functionalized graphene oxide： an efficient and recyclable adsorbent for the removal of dye pollutants

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Frontiers of Chemical Science and Engineering 2015年第1期9卷 77-83页

作者： Shanshan WANG Yang LI Xiaobin FAN fengbao zhang Guoliang zhang Department of Chemical Engineering and Technology Tianjin University Tianjin 300072 China

A novel method for the preparation of β- cyclodextrin grafted graphene oxide （GO-β-CD） has been developed. The GO-β-CD was characterized by Fourier transform infrared spectroscopy, 13C NMR spectroscopy, Raman spectroscopy and thermogravimetric analysis. The ability of GO-β-CD to remove fuchsin acid from solution was also studied. The GO-β-CD had an excellent adsorption capacity for fuchsin acid and could be recycled and reused. The adsorption capacities of GO-β-CD for other dye pollutants such as methyl orange and methylene blue were also investigated. The absorption capacities for the three dyes are in the order： fuchsin acid 〉 methylene blue 〉 methyl orange.

关键词： graphene oxide β-cyclodextrin adsorptioncapacity recycle

Runoff and Infiltration responses of revegetated slopes to clipping management on the northern Loess Plateau

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International Soil and Water Conservation Research 2024年第1期12卷 171-183页

作者： Qilin He Binbin Li fengbao zhang Nan Shen Mingyi Yang The Research Center of Soil and Water Conservation and Ecological Environment Chinese Academy of Sciences and Ministry of EducationYanglingShaanxi712100China Institute of Soil and Water Conservation Chinese Academy of Sciences and Ministry of Water ResourcesYanglingShaanxi712100China Institute of Soil and Water Conservation Northwest A&F UniversityYanglingShaanxi712100China Water and Soil Conservation Monitoring Center of Ministry of Water Resources Beijing100053China University of Chinese Academy of Sciences Beijing100049China

Large-scale vegetation restoration can reduce local watershed water yield,limit vegetation establishment and subsequent growth,and influence regional ecosystem *** management by reducing aboveground parts of grassland was gradually recommended and adopted in Grain-for-Green project management to offset these additional ***,scientific evaluation of the effectiveness of clipping management on infiltration and runoff processes is necessary for maintaining the stability of the surface water system and the sustainability of vegetation restoration in semi-arid regions.A field simulated rainfall experiment was conducted with four managed clipping grasslands(mainly bunge needlegrass and Stipa grandis),including no clipping,light clipping,heavy clipping,and complete clipping under three slope gradients(10,20,and 30°)and three rainfall intensities(60,90,and 120 mm/h)to explore the mechanism of runoff and infiltration responses to clipping using structural equation modeling and variation partitioning based on an SCS-CN *** results showed the runoff coefficient of the light clipping,heavy clipping,and complete clipping plots were 1.33,2.22,and 4.22 times that of the no clipping *** light clipping,heavy clipping,and complete clipping plots decreased the infiltration coefficients by 0%,5%,and 26%relative to the no clipping *** intensity dominated runoff and infiltration amounts,and clipping intensity's total effect was stronger than slope *** intensity and slope gradient were more influential on runoff with increasing rainfall *** mutual inhibition effect was between clipping intensity and slope gradient on *** order to maintain the sustainability of restoration,a 25-50%vegetation coverage after clipping maximizes the benefits of increasing runoff and maintaining enough soil water supply that prevents possible soil *** propose that future vegetation restoration policies should evaluate the appropriat

关键词： Runoff Infiltration Grassland clipping management SCS-CN model Structural equation model Variation partitioning

Atomically dispersed metal sites in COF-based nanomaterials for electrochemical energy conversion

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Green Energy & Environment 2023年第2期8卷 360-382页

作者： Yaqi Cao Wenchao Peng Yang Li fengbao zhang Yuanzhi Zhu Xiaobin Fan State Key Laboratory of Chemical Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin300350China Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials Faculty of Chemical EngineeringKunming University of Science and TechnologyKunming650500China

Atomically dispersed metal sites(ADMSs)play key roles in electrochemical energy *** covalent organic frameworks(COFs)enable the precise control of the chemical compositions and structures at the molecular level,making them ideal substrates for supporting *** this review,we systematically summarize the recent progress on the design and synthesis of ADMSs in COFs,including embedding molecular catalysts into COFs,immobilizing ADMSs on heteroatom-containing COFs,and preparing COF-derived carbon materials through *** electrocatalytic performance of the resulting catalysts is presented for various electrochemical reactions,involving oxygen reduction reaction(ORR),carbon dioxide reduction reaction(CO_(2)RR),oxygen evolution reaction(OER),hydrogen evolution reaction(HER),and nitrogen reduction reaction(NRR).The modulation strategies of AMDSs in COFs for enhanced activity,selectivity,and stability are highlighted,together with a perspective of the current challenges and the future opportunities in this field.

关键词： Covalent organic frameworks Metal sites Single-atom catalysts Electrochemical energy conversion

Enhanced catalytic conversion of polysulfides using high-percentage 1T-phase metallic WS_(2) nanosheets for Li–S batteries

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Green Energy & Environment 2022年第6期7卷 1340-1348页

作者： Changyu Yang Ning Gong Tao Chen Yang Li Wenchao Peng fengbao zhang Xiaobin Fan School of Chemical Engineering and Technology State Key Laboratory of Chemical EngineeringCollaborative Innovation Center of Chemical Science and EngineeringTianjin UniversityTianjin300072China

High-energy-density lithium-sulfur batteries has attracted substantial attention as competitive candidates for large-scale energy storage ***,the adverse“shuttle effect”and sluggish sulfur conversion reaction kinetics immensely obstruct their commercial ***,a two-dimensional metallic 1T phase WS_(2)(1T-WS_(2))nanosheets modified functional separator is developed to improve the electrochemical ***,the semiconducting bulk-WS_(2) crystals,and 2H phase WS_(2)(2H-WS_(2))nanosheets with more basal-plane Svacancy defects are also prepared to probe the contributions of the crystal structure(phase),S-vacancy defects,and edges to the Li–S batteries performance experimentally and *** merits of the synergistic effect of high ion and electron conductivity,enhanced binding ability to lithium polysulfides(LiPSs),and sufficient electrocatalytic active sites,the 1T-WS_(2) shows highly efficient electrocatalysis of LiPSs conversion and further improves Li–S battery *** expected,thus-fabricated cells with 1T-WS_(2) nanosheets present superior cycle stability that maintain capacity decline of 0.039%per cycle after 1000 cycles at 1.0 *** strategy presented here offers a viable approach to reveal the critical factors for LiPSs catalytic conversion,which is beneficial to developing advanced Li–S batteries with enhanced properties.

关键词： Li-S batteries Electrocatalysts Polysulfides WS_(2)

2D MXene-Based Materials for Electrocatalysis

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Transactions of Tianjin University 2020年第3期26卷 149-171页

作者： Jiapeng Liu Wenchao Peng Yang Li fengbao zhang Xiaobin Fan School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China State Key Laboratory of Chemical Engineering Collaborative Innovation Center of Chemical Science and EngineeringTianjin 300072China

MXenes,as an emerging 2D material,are expected to exert a great influence on future energy storage and conversion *** this review,we systematically summarize recent advances in MXene-based materials in electrocatalysis,particularly in the hydrogen evolution,oxygen evolution,oxygen reduction,nitrogen reduction,and CO2 reduction *** factors influencing the properties of these materials,such as functional groups,conductivity,and interface,are discussed,and challenges to the future development of MXene-based electrocatalysts are presented.

关键词： 2D material MXenes Electrocatalyst Hydrogen evolution reaction Oxygen evolution reaction Oxygen reduction reaction Nitrogen reduction reaction CO2

Palladium Nanoparticle-Graphene Hybrids as Active Catalysts for the Suzuki Reaction

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Nano Research 2010年第6期3卷 429-437页

作者： Yang Li Xiaobin Fan Junjie Qi Junyi Ji Shulan Wang Guoliang zhang fengbao zhang School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China

Graphene has been successfully modified with palladium nanoparticles in a facile manner by reducing palladium acetate [Pd(OAc)2] in the present of sodium dodecyl sulfate (SDS), which is used as both surfactant and the reducing agent. The palladium nanoparticle-graphene hybrids (Pd-graphene hybrids) are characterized by high- resolution transmission electron microscopy, atomic force microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and energy dispersive X-ray spectroscopy. We demonstrate that the Pd-graphene hybrids can act as an efficient catalyst for the Suzuki reaction under aqueous and aerobic conditions, with the reaction reaching completion in as little as 5 min. The influence of the preparation conditions on the catalytic activities of the hybrids is also investigated.

关键词： Graphene Pd nanoparticles hybrids catalyst Suzuki reaction

Solubilities of 2-Naphthalenesulfonic Acid Monohydrate and Sodium 2-Naphthalenesulfonate in Sulfuric Acid Solution and Their Application for Preparing Sodium 2-Naphthalenesulfonate

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Transactions of Tianjin University 2016年第3期22卷 273-278页

作者：张凤宝景晖朱文宇张林刘博张国亮夏清 School of Chemical Engineering and Technology Tianjin University

The solubilities of 2-naphthalenesulfonic acid monohydrate and sodium 2-naphthalenesulfonate in sulfuric acid solutions were measured at temperatures ranging from 278,15 to 338.15 K by using a dynamic method. The concentration of sulfuric acid solution ranged from 0 to 80wt%. The solubilities of 2-naphthalenesulfonic acid monohydrate and sodium 2-naphthalenesulfonate increased with temperature, and both of them were the lowest at 70wt% of sulfuric acid solution （ w3 0 = 0.70） while the highest in pure water. The solubility data were correlated by the modified Apelblat equation. Based on the solubility difference between 2-naphthalenesulfonic acid monohydrate and sodium 2-naphthalenesulfonate, a new technique in which sodium sulfate was used to replace sodium sulfite in the neutralization reaction was developed. The suitable mole ratio of H20 to Na2SO4 in the neutralization reaction was 80 ： 1, and that of 2-naphthalenesulfonic acid monohydrate to Na2SO4 was 3.2 ： 1. The material balance under the suitable mole ratios was given and discussed.

关键词： 2-naphthalenesulfonic acid monohydrate sodium 2-naphthalenesulfonate solubility modified Apelblat equation sodium sulfate

Molecular Imprinted Membrane with High Flux by Surface Photo-grafting Copolymerization

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Chinese Journal of Chemical Engineering 2005年第2期13卷 184-190页

作者：李爽张凤宝张国亮王燕 School of Chemical Engineering Tianjin University Tianjin 300072 China

Molecular imprinted polymer membranes (MIM) combine the merits of molecular imprint and membrane technology. In this work, a very thin of imprinted polymer that can specifically and selectively absorb the basic template (adenine) was grafted on the surface of polyvinylidene fluoride membrane by photo-grafting copolymerization. Because the molecular imprinted polymer is grafted on the surface of the matrix membrane without blocking the membrane pores, the resultant MIMs have high flux as microfiltration membrane (0.26 mol·m^-2·h^-1 of template and flux for distilled water was 3.6 ml·mim^-1·cm^-2 at 0.8 MPa). Moreover, the MIMs can absorb/desorb template molecules rapidly. Usually, it only takes several minutes for MIMs to absorb more than 75% of the template (adenine) in aqueous solution. And the influences of the type and amount of the functional monomers, the amount of the cross-linker on the absorption capability are discussed to determine the optimal preparation conditions。

关键词： molecular imprinted membrane photo-grafting copolymerization adenine