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Structure Engineering of Layered Double Hydroxides(LDHs)for heterogeneous catalysis

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Chemical Research in Chinese Universities 2024年第4期40卷 590-610页

作者： GAO Zhexi MA Haoran WANG Qian LI Dianqing FENG Junting DUAN Xue State Key Laboratory of Chemical Resource Engineering Beijing Engineering Center for Hierarchical CatalystsBeijing University of Chemical TechnologyBeijing100029P.R.China Quzhou Institute for Innovation in Resource Chemical Engineering Quzhou324000P.R.China

Layered double hydroxide(LDH)is regarded as an advanced platform material in catalysis and attracts vast attrition *** a kind of two-dimensional layered material,it exhibits great advantages including cation-tunability in layer,lattice limitation,topological transformation,ion exchange and intercalation *** also can be used as building blocks for composite catalytic *** 100 years,a large number of works have been accomplished and researchers made great progress on investigating the LDH-based catalytic *** this review,we summarize representative achievements and significant progress in recent years,which mainly include constructing high entropy catalytic material,high dispersion/stability and interfacial supported catalytic material,composite catalytic materials and nano-reactor based on ***,through collecting the excellent works,we conclude the future development potential of LDH and provide a perspective.

关键词： Layered double hydroxide(LDH)material heterogeneous catalysis Structure engineering

Recent progress on synthesis of ZIF-67-based materials and their application to heterogeneous catalysis

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Green Energy & Environment 2022年第1期7卷 3-15页

作者： Chongxiong Duan Yi Yu Han Hu State Key Laboratory of Heavy Oil Processing College of Chemical EngineeringInstitute of New EnergyChina University of Petroleum(East China)Qingdao266580China School of Materials Science and Hydrogen Engineering Foshan UniversityFoshan528231China School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou510640China

In recent years,an increasing amount of interest has been dedicated to the synthesis and application of ZIF-67-based materials due to their exceptionally high surface area,tunable porosity,and excellent thermal and chemical *** review summarizes the latest strategies of synthesizing ZIF-67-based materials by exploring the prominent ***,the recent progress in the applications of ZIF-67-based materials in heterogeneous catalysis,including catalysis of the redox reactions,addition reactions,esterification reactions,Knoevenagel condensations,and hydrogenation-dehydrogenation reactions,has been elaborately ***,we end this work by shedding some light on the large-scale industrial production of ZIF-67-based materials and their applications in the future.

关键词： Zeolitic imidazolate framework-67 Synthetic methods heterogeneous catalysis

Development of In Situ MAS NMR and Its Applications in Material Synthesis and heterogeneous catalysis

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Chinese Journal of Structural Chemistry 2022年第10期41卷 45-55页

作者： Xinlong Yao Zhenchao Zhao Guangjin Hou State Key Laboratory of catalysis Dalian National Laboratory for Clean Energy2011-Collaborative Innovation Center of Chemistry for Energy MaterialsDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of Sciences Bejing 100049China Key Laboratory of the Ministry of Education for Advanced catalysis Materials Institute of Physical ChemistryZhejiang Normal UniversityJinhua 321004China

High-resolution magic angle spinning(MAS)NMR can afford both qualitative and quantitative information of the solid,liquid and gas phase at atomic level,and such information obtained at in situ/operando conditions is of vital importance for understanding the crystallization process of material as well as the reaction mechanism of *** meet the requirement of experimental conditions for material synthesis and catalytic reactions,in situ MAS NMR techniques have been continuously developed for using at higher temperatures and pressures with high ***,we will briefly outline the development of this technology and discuss its detailed applications in understanding material synthesis and heterogeneous catalysis.

关键词： in situ NMR high-temperature high-pressure material synthesis heterogeneous catalysis molecular sieves

In-Situ HP-STM and Operando EC-STM Studies of heterogeneous catalysis at Interfaces

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Chinese Journal of Structural Chemistry 2022年第10期41卷 29-44页

作者： Lei Xie Chaoqin Huang Zhaofeng Liang Hongbing Wang Zheng Jiang Fei Song Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201000China University of Chinese Academy of Sciences Bejing 101000China

heterogeneous catalysis taking place at solid interfaces plays a crucial role not only in industrial chemical production, energy conversion but also in fundamental research. The dynamic evolution of surface morphology and composition requires full understanding especially under realistic reaction conditions. To this end, conventional scanning tunneling microscopy(STM) has been integrated with high pressure cell and electrochemical cell, forming high pressure(HP) STM and electrochemical(EC) STM for the in-situ/operando characterization at solid-gas and solid-liquid interfaces with atomic resolution, respectively. In this review, we attempt to give a brief introduction to the development and working principle of these two techniques and subsequently summarize several representative progresses in recent days. The dynamic changes in active sites, surface reconstruction, absorbates alteration and products formation are directly characterized in a combination with other surface sensitive technologies. The correlation between surface structures and catalytic performance as well as the underlying mechanism can thus be unraveled, which provides insights into the rational design and optimization of catalysts.

关键词： HP-STM EC-STM heterogeneous catalysis in-situ operando interfaces

Sustainable chemical upcycling of waste polyolefins by heterogeneous catalysis

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SusMat 2022年第2期2卷 161-185页

作者： Mingyu Chu Weilin Tu Shuangqiao Yang Congyang Zhang Qingye Li Qiao Zhang Jinxing Chen Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhouP.R.China State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan UniversityChengduP.R.China Department of Chemistry University of Western OntarioLondonOntarioCanada College of Food Science Sichuan Agricultural UniversityYa’anP.R.China

The mass production of disposable polyolefin products has led to serious plastic pollution and an imbalance between manufacturing and *** these challenges,the chemical upcycling of waste polyolefins has attracted extensive attention due to its high efficiency and economic ***,we review the development of polyolefin chemical upcycling in heterogeneous *** status quo of polyolefin recycling is first *** then introduce the advanced strategies for chemical upcycling in the view of different value-added products and discuss their challenges and *** in-depth analysis centers on the catalytic mechanism and the design principle of heterogeneous cata***,we outlook the promising directions to facilitate the degradation process via polymer and catalyst design and optimized catalytic *** strategies are expected to promote the chemical upcycling of polyolefins,bringing great promise for the sustainable development of society.

关键词： chemical upcycling heterogeneous catalysis plastic recovery polyolefin value-added products

heterogeneous catalysis under flow for the 21st century fine chemical industry

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Green Energy & Environment 2021年第2期6卷 161-166页

作者： Rosaria Ciriminna Mario Pagliaro Rafael Luque Istituto per Io Studio dei Mate riali Nanostnuturati CNRwia U.La Malfa 15390146PulemoItaly Deparamento de Quimica Orginica Univeridad de CordobaCampus de RabonalesEdificio Marie Curie(C-3)Cra Nnal IV-Akm 396Cordoba14014Spain Peoples Friendship University of Russia(RUDN Universiy) 6 Miklukho Maklaya St117198MoscowRussia

Due to metal leaching and poor catalyst stability, the chemical industry's fine chemical and pharmaceutical sectors have been historically reluctant to use supported transition metal catalysts to manufacture fine chemicals and active pharmaceutical ingredients. With the advent of new generation supported metal catalysts and flow chemistry, we argue in this study, this situation is poised to quickly change. Alongside heterogenized metal nanoparticles, both single-site molecular and single-atom catalyst will become ubiquitous. This study offers a critical outlook taking into account both technical and economic aspects.

关键词： Fine chemical heterogeneous catalysis Single atom catalysis Green chemistry Chemical industry

heterogeneous catalysis for green chemistry based on nanocrystals

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National Science Review 2015年第2期2卷 150-166页

作者： Yuxi Liu Guofeng Zhao Dingsheng Wang Yadong Li Department of Chemistry Tsinghua University

Modern society has an ever-increasing demand for environmentally friendly catalytic processes. catalysis research is working towards a solution through the development of efective heterogeneous catalysts for environment-related applications. Nanotechnologies have provided efective strategies for the preparation of nanocrystals(NCs) with well-deined sizes, shapes and compositions. Precise control of these NCs provides an important foundation for the studies of structure-performance relationships in catalysis, which is critical to the design of NCs with optimized catalytic performances for practical applications. We focus on recent advances in the development of botom-up strategies to control NCs structures for some key catalytic applications, including CO oxidation, selective oxidation of alcohols, semihydrogenation of alkynes, and selective hydrogenation of unsaturated aldehydes and nitrobenzene. hese key applications have been a popular research focus because of their signiicance in green chemistry. Herein we also discuss the scientiic understandings of the active species and active structures of these systems to gain an insight for rational design of eicient catalytic systems for these catalytic reactions.

关键词： nanocrystals heterogeneous catalysis green chemistry CO oxidation alcohol oxidation selective hydrogenation

Encapsulating soluble active species into hollow crystalline porous capsules beyond integration of homogeneous and heterogeneous catalysis

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National Science Review 2020年第1期7卷 37-45页

作者： Guorui Cai Meili Ding Qianye Wu Hai-Long Jiang Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Soft Matter Chemistry Collaborative Innovation Center of Suzhou Nano Science and Technology Department of Chemistry University of Science and Technology of China

Homogeneous molecular catalysts and heterogeneous catalysts possess complementary strengths, and are of great importance in laboratory/commercial procedures. While various porous hosts, such as polymers, carbons, silica, metal oxides and zeolites, have been used in an attempt to heterogenize homogeneous catalysts, realizing the integration of both functions at the expense of discounting their respective advantages, it remains a significant challenge to truly combine their intrinsic strengths in a single catalyst without compromise. Here, we describe a general template-assisted approach to incorporating soluble molecular catalysts into the hollow porous capsule, which prevents their leaching due to the absence of large intergranular space. In the resultant yolk(soluble)–shell(crystalline) capsules, the soluble yolks can perform their intrinsic activity in a mimetic homogeneous environment, and the crystalline porous shells endow the former with selective permeability, substrate enrichment, size-selective and heterogeneous cascade catalysis, beyond the integration of the respective advantages of homogeneous and heterogeneous catalysts.

关键词： metal–organic frameworks hollow capsules molecular catalyst heterogeneous catalysis cascade reaction

Polydopamine-Encapsulated Dendritic Organosilica Nanoparticles as Amphiphilic Platforms for Highly Efficient heterogeneous catalysis in Water

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Chinese Journal of Chemistry 2021年第7期39卷 1975-1982页

作者： Yunting Liu Zihan Wang Na Guo Pengbo Liu Guanhua Liu Jing Gao Lei Zhang Yanjun Jiang Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization(Tianjin University of Science and Technology) Tianjin300457 China School of Chemical Engineering and Technology Hebei University of TechnologyTianjin300130 China College of Chemical Engineering and Materials Science and Tianjin University of Science and TechnologyTianjin300457 China

Main observation and conclusion Aqueous heterogeneous catalysis is a green,sustainable catalytic process that attracts increasing attention,but it often suffers from poor mass transfer,substrate adsorption and catalyst ***,we synthesized a type of amphiphilic core-shell catalysts with a hydrophilic polydopamine(PDA)shell and a hydrophobic dendritic organosilica nanoparticle(DON)core for heterogeneous catalysis in water.

关键词： Amphiphilic core-shell catalysts Aqueous reactions Immobilization heterogeneous catalysis C-C coupling