检索结果-内蒙古大学图书馆

Carbon-Encrusted SnS_(2) Decorated on MXene Nanosheets for Advanced Li-Ion Battery Anodes

Energy Material Advances 2024年第1期5卷 45-58页

作者： Xuezhi Xu Dong Feng Liangsa You Yuhui Xie Feng Wu Yuanzhi Zhu Yi Mei Delong Xie Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials The International Joint Laboratory for Sustainable Polymers of Yunnan ProvinceThe Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan ProvinceFaculty of Chemical EngineeringKunming University of Science and TechnologyKunming 650500China

SnS_(2) stands out as a promising lithium storage anode due to its high specific capacity,low voltage plateau,and ***,practical applications are hindered by significant limitations,including low electrical conductivity,volumetric expansion,and sulfur *** this study,carbon-encrusted SnS_(2) nanoparticles are anchored onto few-layered MXene via a straightforward ultrasound-assisted ball milling method,yielding SnS_(2)@C/MXene *** experiments demonstrate that this innovative ball milling approach facilitates the infiltration of SnS_(2)@C into the distorted sites of MXene,effectively curbing interlayer stacking,expediting ion transfer,and bolstering the pseudocapacitance contribution of the ***,the few-layered MXene intertwines with SnS_(2)@C,effectively mitigating the volume fluctuations of the active SnS_(2)@*** a lithium-ion battery(LiB)anode,SnS_(2)@C/MXene exhibits a specific capacity of 867.1 mAh g^(−1) after 100 cycles at 0.1 A g^(−1).Moreover,the SnS_(2)@C/MXene anode demonstrates remarkable reversible specific capacities of 1,162.9,1,001.0,838.1,724.8,591.5,and 413.9 mAh g^(−1) under 0.1,0.2,0.5,1,2,and 5 A g^(−1),respectively,surpassing those of recently reported SnSx-based LiB *** findings underscore the significant potential of SnS_(2)@C/MXene nanocomposites for high-performance LiBs.

关键词： MXene Li ion battery anodes Ultrasound assisted ball milling low electrical conductivityvolumetric expansionand SNS carbon encrusted lithium storage anode Pseudocapacitance

来源：评论

学校读者我要写书评

暂无评论

Boosting bidirectional sulfur conversion enabled by introducing boron-doped atoms and phosphorus vacancies in Ni_(2)P for lithium-sulfur batteries

引用

Journal of Energy Chemistry 2025年第1期100卷 760-769页

作者： Lin Peng Yu Bai Hang Li Meixiu Qu Zhenhua Wang Kening Sun Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Chemical Power Source and Green Catalysis School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China

Lithium-sulfur (Li-S) batteries have gained great attention due to the high theoretical energy density and low cost,yet their further commercialization has been obstructed by the notorious shuttle effect and sluggish redox ***,we supply a strategy to optimize the electron structure of Ni_(2)P by concurrently introducing B-doped atoms and P vacancies in Ni_(2)P (Vp-B-Ni_(2)P),thereby enhancing the bidirectional sulfur *** study indicates that the simultaneous introduction of B-doped atoms and P vacancies in Ni_(2)P causes the redistribution of electron around Ni atoms,bringing about the upward shift of d-band center of Ni atoms and effective d-p orbital hybridization between Ni atoms and sulfur species,thus strengthening the chemical anchoring for lithium polysulfides (LiPSs) as well as expediting the bidirectional conversion kinetics of sulfur ***,theoretical calculations reveal that the incorporation of B-doped atoms and P vacancies in Ni_(2)P selectively promotes Li2S dissolution and nucleation ***,the Li-S batteries with Vp-B-Ni_(2)P-separators present outstanding rate ability of 777 m A h g^(-1)at 5 C and high areal capacity of 8.03 mA h cm^(-2)under E/S of 5μL mg^(-1)and sulfur loading of 7.20 mg cm^(-2).This work elucidates that introducing heteroatom and vacancy in metal phosphide collaboratively regulates the electron structure to accelerate bidirectional sulfur conversion.

关键词： B-doped atoms P vacancies Nickel phosphide Bidirectional sulfur conversion Lithium-sulfur batteries

来源：评论

学校读者我要写书评

暂无评论

Hydrogen peroxide-activatable iodoBodipy-phthalhydrazid conjugate nanoparticles for cancer therapy

引用

Nano Research 2023年第10期16卷 12294-12303页

作者： Haijun Ning Yuxin Yang Chengyuan Lv Danhong Zhou Saran Long Wen Sun Jianjun Du Jiangli Fan Xiaojun Peng State Key Laboratory of Fine Chemicals Frontiers Science Center for Smart Materials Oriented Chemical EngineeringSchool of Chemical EngineeringDalian University of TechnologyDalian 116024China Ningbo Institute of Dalian University of Technology Ningbo 315016China

The dependence on outer light source strongly hinders clinical applications of photodynamic therapy(PDT)to the deep-seated ***,the majority of documented PDT systems that function without the external light source rely on either the chemiluminescence resonance energy transfer(CRET)or fluorescence resonance energy transfer(FRET)mechanism,which decreases the energy transfer efficiency and reproducibility of ***,we developed a novel single-molecule triplet photosensitizer(iodoBodipy(IBDP)-L)that can be chemiexcited to triplet excited state to generate reactive oxygen species instead of outer light *** direct bonding of phthalhydrazid moiety to iodoBodipy fluorophore evoked valid intramolecular energy transfer(IET),and once phthalhydrazid part is activated by hydrogen peroxide,the released reaction energy could excite the iodoBodipy-phthalhydrazid conjugate as a *** product IBDP-L-COOH showed high triplet state quantum yield(ΦT=65%)and large spin-orbit coupling.A large amount of reactive oxygen species(ROS)was produced in MCF-7 cells,thus inhibiting the cell growth both in vitro and in vivo after IBDP-L was formulated into nanoparticles(NPs)via *** believe that the synthesized IodoBodipy-phthalhydrazid conjugate based on the IET mechanism will open a new door in the molecular design of efficient triplet photosensitizers for treating deeply seated tumors in the future.

关键词： luminol chemiexcited triplet photosensitizer cancer therapy intramolecular energy transfer(IET)mechanism

来源：评论

学校读者我要写书评

暂无评论

Two dimensional MoS_(2) finding its way towards constructing high-performance alkaline recovery membranes

引用

Chinese Journal of chemical engineering 2023年第8期60卷 155-164页

作者： Xinxin Li Hongwei Shao Shichao Zhang Yong Li Jingjing Gu Qiang Huang Jin Ran Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering School of Chemistry and Chemical EngineeringHefei University of TechnologyAnhui 230009China

The available alkaline recovery membranes are currently dominated by polymeric materials,but they suffer from a permeation-selectivity trade-off and inferior chemical *** two dimensional(2D) lamellar membranes with sub-nanometer wide channels are promising candidates for discerning OH^(-)and other ***,we report the development of alkaline recycling membranes through stacking MoS_(2) *** from the ordered and narrow 2D channels,MoS_(2) membranes show excellent alkaline recovery *** OH^(-)dialysis coefficient (U_(OH)-) and separation factor (S)towards simulated OH^(-) and WO_(4)^(2-) across the 500 nm thick MoS_(2) laminates reach 6.9×10^(-3)m·h^(-1)and 34.3 ***,the chemical environments of MoS_(2) laminates were modulated by intercalating ionic poly(sodium 4-styrene sulfonate)(PSS@MoS_(2)).The U_(OH)-and S values of PSS@MoS_(2) membrane further improve to 11.7×10^(-3)m·h^(-1)and 49.8 ***,both MoS_(2) and PSS@MoS_(2) membranes exhibit promising stability.

关键词： Alkaline recovery Diffusion dialysis Two dimensional membranes MoS_(2) Poly(sodium 4-styrene sulfonate)

来源：评论

学校读者我要写书评

暂无评论

High-throughput screening of CO_(2) cycloaddition MOF catalyst with an explainable machine learning model

引用

Green Energy & Environment 2025年第1期10卷 132-138页

作者： Xuefeng Bai Yi Li Yabo Xie Qiancheng Chen Xin Zhang Jian-Rong Li Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemical Engineering College of Materials Science&EngineeringBeijing University of TechnologyBeijing100124China

The high porosity and tunable chemical functionality of metal-organic frameworks(MOFs)make it a promising catalyst design ***-throughput screening of catalytic performance is feasible since the large MOF structure database is *** this study,we report a machine learning model for high-throughput screening of MOF catalysts for the CO_(2) cycloaddition *** descriptors for model training were judiciously chosen according to the reaction mechanism,which leads to high accuracy up to 97%for the 75%quantile of the training set as the classification *** feature contribution was further evaluated with SHAP and PDP analysis to provide a certain physical understanding.12,415 hypothetical MOF structures and 100 reported MOFs were evaluated under 100℃ and 1 bar within one day using the model,and 239 potentially efficient catalysts were *** them,MOF-76(Y)achieved the top performance experimentally among reported MOFs,in good agreement with the prediction.

关键词： Metal-organic frameworks High-throughput screening Machine learning Explainable model CO_(2)cycloaddition

来源：评论

学校读者我要写书评

暂无评论

Unveiling oscillatory nature for sustainable fuel production

引用

National Science Review 2024年第5期11卷 90-91页

作者： Ning Han Ye Wang Bao-Lian Su Department of Materials Engineering State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National Engineering Laboratory for Green Chemical Productions of Alcohols Ethers and Esters College of Chemistry and Chemical Engineering Xiamen University Laboratory of Inorganic Materials Chemistry(CMI) University of Namur State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

A century ago, in 1923, Franz Fischer and Hans Tropsch introduced the groundbreaking Fischer–Tropsch (FT) synthesis, a heterogeneous catalytic process used to convert synthesis gas (syngas,CO+H2) into multi-carbon hydrocarbons [1]. Over the past 100 years, FT synthesis has emerged as a pivotal method for converting non-petroleum resources into exceptionally clean fuels or valuable chemicals via syngas [2–4].

关键词： production nature fuel oscillatory sustainable unveiling

来源：评论

学校读者我要写书评

暂无评论

Atomically dispersed Mn-N_(x) catalysts derived from Mn-hexamine coordination frameworks for oxygen reduction reaction

引用

Carbon Energy 2024年第5期6卷 114-126页

作者： Guoyu Zhong Liuyong Zou Xiao Chi Zhen Meng Zehong Chen Tingzhen Li Yongfa Huang Xiaobo Fu Wenbo Liao Shaona Zheng Yongjun Xu Feng Peng Xinwen Peng Guangdong Provincial Key Laboratory of Distributed Energy Systems School of Chemical Engineering and Energy TechnologyDongguan University of TechnologyDongguanChina State Key Laboratory of Pulp and Paper Engineering South China University of TechnologyGuangzhouChina Department of Chemistry Centre for Advanced 2D Materials(CA2DM)National University of SingaporeSingaporeSingapore School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhouChina

Metal-organic frameworks recently have been burgeoning and used as precursors to obtain various metal-nitrogen-carbon catalysts for oxygen reduction reaction(ORR).Although rarely studied,Mn-N-C is a promising catalyst for ORR due to its weak Fenton reaction activity and strong graphitization ***,we developed a facile strategy for anchoring the atomically dispersed nitrogen-coordinated single Mn sites on carbon nanosheets(MnNCS)from an Mn-hexamine coordination *** atomically dispersed Mn-N_(4) sites were dispersed on ultrathin carbon nanosheets with a hierarchically porous *** optimized MnNCS displayed an excellent ORR performance in half-cells(0.89 V *** hydrogen electrode(RHE)in base and 0.76 V *** in acid in half-wave potential)and Zn-air batteries(233 mW cm^(−2)in peak power density),along with significantly enhanced *** functional theory calculations further corroborated that the Mn-N_(4)-C(12)site has favorable adsorption of*OH as the rate-determining *** findings demonstrate that the metal-hexamine coordination framework can be used as a model system for the rational design of highly active atomic metal catalysts for energy applications.

关键词： carbon nanosheets electrocatalyst metal-organic frameworks Mn-N_(4) oxygen reduction reaction Zn-air batteries

来源：评论

学校读者我要写书评

暂无评论

Box-Behnken experimental design for optimizing process parameters in carbonate-promoted direct thiophene carboxylation reaction with carbon dioxide

引用

Chinese Journal of chemical engineering 2022年第10期50卷 222-234页

作者： Qingjun Zhang Youguang Ma Xigang Yuan Aiwu Zeng State Key Laboratory of Chemical Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China Chemical Engineering Research Center Collaborative Innovative Center of Chemical Science and Engineering(Tianjin)Tianjin 300350China

A feasible synthesis route is developed for achieving the direct carboxylation of thiophene and CO_(2) in a relatively mild solvent-free carboxylate-assisted carbonate(semi)molten *** effects of reaction factors on the carboxylate yield are investigated in the preliminary screening experiments,and the phase behavior analysis of the reaction medium is detected through the thermal characterization analysis of insitu high temperature X-ray diffraction measurement(in-situ XRD).The application of response surface methodology(RSM)based on the Box-Behnken design(BBD)is conducted to investigate the effect of the reaction parameters,such as reaction temperatu re,carbonate proportion,CO_(2) pressure and thiophene amount,on the product *** regressed second-order polynomial model equation well correlates all the independent *** analysis of variance(ANOVA)results reveal that the quadratic effect of reaction temperature is the most effective parameter in this carboxylation reaction owing to it’s the highest contribution to the sum of square(30.18%).The optimum reaction conditions for maximum product yield are the reaction temperature of 287℃,carbonate proportion of 32.20%,CO_(2) pressure of 1.0MPa and thiophene amount of 9.35 *** under these selected experimental conditions,a high product yield(50.98%)can be achieved.

关键词： Carboxylation Solvent-free medium Molten salt Optimization Response surfacemethodology

来源：评论

学校读者我要写书评

暂无评论

Theoretical and experimental study on the inhibition of jet fuel oxidation by diarylamine

引用

Chinese Journal of chemical engineering 2023年第4期56卷 225-232页

作者： Tinghao Jia Yunbo Yu Qing Liu Yao Yang Ji-Jun Zou Xiangwen Zhang Lun Pan Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311200China Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China

Antioxidants addition is believed as a facile and effective way to improve jet fuel thermal oxidation ***,amine antioxidants,as one of the most important antioxidants,have not received sufficient attention in the field of jet fuel autoxidation ***,the inhibition efficiency and mechanism of decane and exo-tetrahydrodicyclopentadiene(THDCPD)oxidation by di-4-tert-butylphenylamine(diarylamine)was experimentally and theoretically *** results show that diarylamine can significantly inhibit decane oxidation but is less efficient for THDCPD oxidation,which is attributed to the higher energy barrier of retro-carbonyl-ene reaction(rate-determining step)in THDCPD than that in decane during diarylamine ***,the addition of diarylamine will cause undesirable color change after accelerated oxidation and produce slightly more deposits during high-temperature thermal oxidative stress for both decane and *** results provide significant implications for the future design of effective antioxidant additives for high-performance jet fuel.

关键词： Jet fuel Thermal oxidation stability High-energy-density fuel Diarylamine Antioxidation mechanism

来源：评论

学校读者我要写书评

暂无评论

Bifunctional iron-porphyrin metal-organic frameworks for organic photoelectrochemical transistor gating and biosensing

引用

Chinese chemical Letters 2025年第3期36卷 227-231页

作者： Cheng-Shuang Wang Bing-Yu Zhou Yi-Feng Wang Cheng Yuan Bo-Han Kou Wei-Wei Zhao Jing-Juan Xu State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China School of Materials Science and Engineering Yancheng Institute of TechnologyYancheng 224051China

Iron-porphyrin metal-organic frameworks(MOFs)have emerged as a remarkable class of semiconductors with adjustable photoelectrical properties and peroxidase-mimicking activities,yet their full potential remains largely *** organic photoelectrochemical transistor(OPECT)has been proven to be a prominent platform for diverse ***,iron-porphyrin MOFs,as bifunctional photo-gating module and horseradish peroxidase-mimicking nanozyme,is explored for novel OPECT *** by alpha-fetoprotein(AFP)-dependent sandwich immunorecognition and therein glucose oxidase(GOx)-generated H_(2)O_(2)to etch CdS quantum dots on the surface of iron-porphyrin MOFs,this OPECT bioanalysis achieved high-performance AFP detection with a low detection limit of 24 fg/*** work featured a bifunctional iron-porphyrin MOFs gated OPECT,which is envisioned to inspire more interest in developing the diverse MOFs-nanozymes toward novel optoelectronics and beyond.

关键词： Organic photoelectrochemical transistor Iron-porphyrin metal-organic frameworks Nanozymes Peroxidase-mimicking activity Biosensing

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：