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Review of plasma-assisted reactions and potential applications for modification of metal-organic frameworks

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Frontiers of Chemical Science and Engineering 2019年第3期13卷 444-457页

作者： Tingting Zhao Niamat Ullah Yajun Hui Zhenhua Li Key Lab for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyCollaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin UniversityTianjin 300072China

Plasma catalysis is drawing increasing attention worldwide. Plasma is a partially ionized gas comprising electrons, ions, molecules, radicals, and photons. Integration of catalysis and plasma can enhance catalytic activity and stability. Some thermodynamically unfavorable reactions can easily occur with plasma assistance. Compared to traditional thermal catalysis, plasma reactors can save energy because they can be operated at much lower temperatures or even room temperature. Additionally, the low bulk temperature of cold plasma makes it a good alternative for treatment of temperature-sensitive materials. In this review, we summarize the plasmaassisted reactions involved in dry reforming of methane, CO2 methanation, the methane coupling reaction, and volatile organic compound abatement. Applications of plasma for modification of metal-organic frameworks are discussed.

关键词： plasma catalysis methane carbon dioxide VOCs metal-organic frameworks

Three dimensional porous frameworks for lithium dendrite suppression

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Journal of Energy Chemistry 2020年第5期29卷 73-89页

作者： Shuyan Ni Shuangshuang Tan Qinyou An Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina

Lithium metal is a promising anode material owing to its very low electrochemical potential and ultrahigh specific ***,the growth of lithium dendrites could result in a short lifespan,low coulombic efficiency,and potential safety hazards during the progress of lithium plating/*** factors drastically hinder its application in lithium metal *** review focuses on the use of three dimensional(3D)porous host frameworks to improve Li plating/stripping behaviors,accommodate the change in volume,and suppress or block lithium dendrite *** 3D porous frameworks,including the conductive carbon-based,metal-based,and lithiophilic inorganic-compound frameworks are introduced and summarized in *** particular functions,relative developments,and optimized strategies of various 3D porous frameworks for lithium deposition/dissolution behaviors are ***,the challenges and promising developments in the field of Li metal anodes will be discussed at the end of this review.

关键词： Lithium metal battery 3D porous frameworks Lithium dendrite Lithium sulfur batteries Lithium oxygen batteries Li plating/stripping

Metal organic frameworks derived single atom catalysts for electrocatalytic energy conversion

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Nano Research 2019年第9期12卷 2067-2080页

作者： Tingting Sun Lianbin Xu Dingsheng Wang Yadong Li Department of Chemistry Tsinghua UniversityBeijing 100084China State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China

The development of efficient and cost-effective catalysts to catalyze a wide variety of electrochemical reactions is key to realize the large-scale applicati on of ren ewable and clean en ergy tech no *** to the maximum atom-utilization efficie ncy and unique electronic and geometric structures,single atom catalysts(SACs)have exhibited superior performance in various catalytic ***,assembled from the function alized orga nic lin kers and metal no des,metal-organic frameworks(MOFs)with ultrafi ne porosity have received treme ndous attention as precursors or self-sacrificing templates for preparing porous ***,the recent advances toward the synthesis strategies for using MOF precursors/templates to con struct SACs are systematically summarized with special emphasis on the types of central metal *** electrochemical applications of these recently emerged MOF-derived SACs for various energy-conversion processes,such as oxygen reduction/evolution reaction(ORR/OER),hydrogen evolution reaction(HER),and CO2 reduction reaction(CO2RR),are also discussed and *** ally,the curre nt challe nges and prospects regardi ng the developme nt of MOF-derived SACs are proposed.

关键词： single atom catalysts metal organic frameworks electrocatalytic energy conversion

Highly efficient K-Fe/C catalysts derived from metal-organic frameworks towards ammonia synthesis

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Nano Research 2019年第9期12卷 2341-2347页

作者： Pengqi Yan Wenhan Guo Zibin Liang Wei Meng Zhen Yin Siwei Li Mengzhu Li Mengtao Zhang Jie Yan Dequan Xiao Ruqiang Zou Ding Ma Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engine ering and College of Engineeringand BIC-ESATPeking UniversityBeijing 100871China Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials Department of Materials Science and EngineeringCollege of EngineeringPeking UniversityBeijing 10087China State Key Laboratory of Separation Membranes and Membrane Processes School of Chemistry and Chemical EngineeringTianjin Polytechnic UniversityTianjin 300387China Department of Chemistry and Chemical Engineering University of New HavenWest HavenCT 06516USA

Fe-based catalysts have been discovered as the best elementary metal-based heterogeneous catalysts for the ammonia synthesis in industrial application during the last ***,a novel and scalable strategy is developed to prepare the K-promoted Fe/C catalyst with extremely high Fe loading (> 50 wt.%) through pyrolysis of the Fe-based metal-organic framework (MOF) *** obtained K-Fe/C catalysts exhibited superior activity and stability towards ammonia *** weight-specific reaction rate of Fe/C with K2O as promoter can achieve 12.4 mmol·g-1·h-1 at 350 ℃ and 30.4 mmol·g-1·h-1 at 400 ℃,approximately four and two times higher than that of the commercial fused-iron catalyst (3.4 mmol·g-1·h-1 at 350 ℃ and 16.7 mmol·g-1·h-1 at 400 ℃) under the same condition,*** excellent performance of K-Fe/C can be ascribed to the inherited structure derived from the metal-organic frame precursors and the promotion of potassium,which can modify the binding energy of reactant molecules on the Fe surface,transfer electrons to iron for effective activation of nitrogen,prevent agglomeration of Fe nanoparticle (NPs) and restrain side reaction of carbon matrix to methane.

关键词： metal-orga nic frameworks pyrolysis ammonia syn thesis ir on nano particles K promotion

Housing Sulfur in Polymer Composite frameworks for Li–S Batteries

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Nano-Micro Letters 2019年第1期11卷 282-325页

作者： Luke Hencz Hao Chen Han Yeu Ling Yazhou Wang Chao Lai Huijun Zhao Shanqing Zhang Centre for Clean Environment and Energy Environmental Futures Research Institute School of Environment and Science Griffith University Gold Coast Campus

Extensive efforts have been devoted to the design of micro-, nano-, and/or molecular structures of sulfur hosts to address the challenges of lithium–sulfur(Li–S) batteries, yet comparatively little research has been carried out on the binders in Li–S batteries. Herein, we systematically review the polymer composite frameworks that confine the sulfur within the sulfur electrode, taking the roles of sulfur hosts and functions of binders into consideration. In particular, we investigate the binding mechanism between the binder and sulfur host(such as mechanical interlocking and interfacial interactions), the chemical interactions between the polymer binder and sulfur(such as covalent bonding, electrostatic bonding, etc.), as well as the beneficial functions that polymer binders can impart on Li–S cathodes, such as conductive binders, electrolyte intake, adhesion strength etc. This work could provide a more comprehensive strategy in designing sulfur electrodes for long-life, large-capacity and high-rate Li–S battery.

关键词： Lithium–sulfur battery Sulfur cathode Binder Binding mechanism Polymer composite frameworks

Metal-organic frameworks for CO2 photoreduction

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Frontiers in Energy 2019年第2期13卷 221-250页

作者： Lei ZHANG Junqing ZHANG Department of Mechanical Engineering University of Alaska Fairbanks Fairbanks AK 99775 USA

Metal-organic frameworks (MOFs) have attracted much attention because of their large surface areas, tunable structures, and potential applications in many areas. In recent years, MOFs have shown much promise in CO2 photoreduction. This review summarized recent research progresses in MOF-based photocatalysts for photocatalytic reduction of CO2. Besides, it discussed strategies in rational design of MOF-based photocatalysts (functionalized pristine MOFs, MOF-photosensitizer, MOF-semiconductor, MOF-metal, and MOF-carbon materials composites) with enhanced performance on CO2 reduction. Moreover, it explored challenges and outlook on using MOF-based photocatalysts for CO2 reduction.

关键词： metal-organic frameworks (MOFs) photoca-talysis CO2 photoreduction composite

Recent advances in luminescent metal-organic frameworks for chemical sensors

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Science China Materials 2019年第11期62卷 1655-1678页

作者： Jie He Jialiang Xu Jiacheng Yin Na Li Xian-He Bu School of Materials Science and Engineering National Institute for Advanced MaterialsTianjin Key Laboratory of Metal and Molecule-Based Material ChemistryNankai UniversityTianjin 300350China State Key Laboratory of Elemento-Organic Chemistry College of ChemistryNankai UniversityTianjin 300071China

Metal-organic frameworks(MOFs),comprised of metal ions/clusters and organic ligands,have shown promising potential for numerous ***,luminescent MOFs(LMOFs),with the superiorities of inherent crystallinity,definite structure,tunable pore,and multiple functionalizations,have bloomed out as sensors for the *** LMOFs have been synthesized and used for sensing ***,the recent advances of LMOFs as chemical sensors for the detection of diverse targets,including metal ions,anions,small molecules,volatile organic compounds,nitro-aromatic explosives,gases,and biomolecules,have been ***,the detection mechanisms and the relationship between structure and properties of the materials are also *** review could be useful reference for the rational construction and sensing applications of LMOFs.

关键词： metal-organic frameworks chemical sensors luminescence detection mechanisms

Co-delivery of PARP and PI3K inhibitors by nanoscale metal-organic frameworks for enhanced tumor chemoradiation

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Nano Research 2019年第12期12卷 3003-3017页

作者： Megan J.Neufeld Allison N.DuRoss Madeleine R.Landry Hayden Winter Andrea M.Goforth Conroy Sun Department of Pharmaceutical Sciences College of PharmacyOregon State UniversityPortlandOregon 97201USA Department of Chemistry Portland State University1719 SW 10th AvePortlandOregon 97201USA Department of Radiation Medicine Oregon Health&Science University3181 S.W.Sam Jackson Park RdPortlandOregon 97239USA

Due to their complementary activity,the use of DNA damage repair(DDR)inhibitors during radiotherapy(RT)has yielded promising ***,this approach is often hindered by toxicity and poor in vivo stability of the DDR in *** scale metal-organic frameworks(nMOFs)represent an emerging class of crystalline materials which exhibit advantageous properties over traditional nanomaterials and demonstrate great potential in ***,a unique,synergistic treatment strategy for enhancing the therapeutic efficacy of RT vianMOF-mediated drug delivery and RT enhancement was evaluated.A nMOF containing the high-Zelement Hf and the ligand 1,4-dicarboxybenzene(Hf-BDC)was synthesized and loaded with the two DDR inhibitor drugs,talazoparib and buparlisib(TB@Hf-BDC-PEG).TB@Hf-BDC-PEGaugmented RT by increasing reactive oxygen species generation and thus DNA damage of which repair was inhibited *** enhancement was demonstrated in vivo where the combination of concurrent radiation with in travenous TB@Hf-BDC-PEG administration resulted in improved tumor control and increased ***,no apparent toxicity was observed with nMOF treatment,supporting its potential as an attractive candidate over traditional nano *** work provides the first report of nMOFs employed to enhance thetherapeutic response to RT through DDR inhibitor delivery and physical radiation dose enhancement.

关键词： nano scale metal-organic frameworks chemoradiotherapy DNA damage repair inhibitors drug delivery radiation dose enhancement

Hierarchical Metal-Organic frameworks with Macroporosity:Synthesis, Achievements,and Challenges

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Nano-Micro Letters 2019年第3期11卷 281-313页

作者： Huan VDoan Harina Amer Hamzah Prasanth Karikkethu Prabhakaran Chiara Petrillo Valeska PTing Department of Mechanical Engineering University of BristolBristol BS81TRUK Department of Oil Refining and Petrochemistry Hanoi University of Mining and GeologyDuc ThangBac Tu LiemHanoiVietnam

Introduction of multiple pore size regimes into metalorganic frameworks(MOFs)to form hierarchical porous structures can lead to improved performance of the material in various *** many cases,where interactions with bulky molecules are involved,enlarging the pore size of typically microporous MOF adsorbents or MOF catalysts is crucial for enhancing both mass transfer and molecular *** this review,we examine the range of synthetic strategies which have been reported thus far to prepare hierarchical MOFs or MOF composites with added *** fabrication techniques can be either pre-or post-synthetic and include using hard or soft structural template agents,defect formation,routes involving supercritical CO2,and 3D *** also discuss potential applications and some of the challenges involved with current techniques,which must be addressed if any of these approaches are to be taken forward for industrial applications.

关键词： Metal-organic frameworks Hierarchical Macroporous Composites