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Chemistry of coordinatively unsaturated centers in zeolites 沸石中配位不饱和中心的化学性质
2区 化学
Trends in Chemistry Pub Date : 2023-10-01 DOI: 10.1016/j.trechm.2023.09.005
Xin Deng, Di Yang, Weijie Li, Yuchao Chai, Guangjun Wu, Landong Li
{"title":"Chemistry of coordinatively unsaturated centers in zeolites","authors":"Xin Deng, Di Yang, Weijie Li, Yuchao Chai, Guangjun Wu, Landong Li","doi":"10.1016/j.trechm.2023.09.005","DOIUrl":"https://doi.org/10.1016/j.trechm.2023.09.005","url":null,"abstract":"The concept of coordinatively unsaturated centers (CUCs) initially introduced in the realm of homogeneous catalysis using organometallic complexes has demonstrated its indispensability within the context of both enzyme and heterogeneous catalysis. With uniform molecule-sized channels high surface area and abundant basic/acidic sites zeolite can be regarded as an ideal scaffold for hosting CUCs and enabling their interaction with small molecules. Here an overview of contemporary advancements on CUCs within zeolite matrices and their interaction with small molecules is presented. Diverse methodologies for introducing CUCs to zeolites and the corresponding characterization techniques are explored. Also in-depth analyses of small-molecule activation on CUCs and the underlying mechanism covering a wide range of important chemical transformations are performed.","PeriodicalId":48544,"journal":{"name":"Trends in Chemistry","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135761612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances in organic materials for chiral luminescence-based OLEDs 手性发光oled有机材料研究进展
2区 化学
Trends in Chemistry Pub Date : 2023-10-01 DOI: 10.1016/j.trechm.2023.08.003
Xiugang Wu, Xiuqin Yan, Yi Chen, Weiguo Zhu, Pi-Tai Chou
{"title":"Advances in organic materials for chiral luminescence-based OLEDs","authors":"Xiugang Wu, Xiuqin Yan, Yi Chen, Weiguo Zhu, Pi-Tai Chou","doi":"10.1016/j.trechm.2023.08.003","DOIUrl":"https://doi.org/10.1016/j.trechm.2023.08.003","url":null,"abstract":"Emitters incorporating circularly polarized luminescence (CPL)-based organic light-emitting diodes (CP-OLEDs) are highly desirable in the pursuit of new optoelectronic applications such as 3D displays and optical data storage. In particular, emitters possessing circularly polarized thermally activated delayed fluorescence (CP-TADF) are able to achieve high efficiency in OLEDs. By further endowing multi-resonance thermally activated delayed fluorescence (MR-TADF, a subclass of TADF) with circularly polarized properties, MR-CP-OLEDs can obtain narrow emission bandwidths and may help to realize the holy grail of ultra-small bandwidth. Accordingly, this review covers the recent progress and evolution of CP-TADF emitters, their upgraded features and corresponding device technologies, as well as the challenges encountered in practical CP-OLEDs.","PeriodicalId":48544,"journal":{"name":"Trends in Chemistry","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135274972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Layered rare-earth hydroxides: crystal engineering toward functional nanosheets 层状稀土氢氧化物:面向功能纳米片的晶体工程
2区 化学
Trends in Chemistry Pub Date : 2023-10-01 DOI: 10.1016/j.trechm.2023.09.004
Jianbo Liang, Renzhi Ma, Takayoshi Sasaki
{"title":"Layered rare-earth hydroxides: crystal engineering toward functional nanosheets","authors":"Jianbo Liang, Renzhi Ma, Takayoshi Sasaki","doi":"10.1016/j.trechm.2023.09.004","DOIUrl":"https://doi.org/10.1016/j.trechm.2023.09.004","url":null,"abstract":"Anion-exchangeable layered host compounds have attracted significant interest in many areas of chemistry. In particular, disintegrating the crystalline layered solids into single layers provides molecularly thin 2D materials as graphene relatives. This review addresses a newly emerging layered host, layered rare-earth (RE) hydroxides, in which anion exchangeability is paired with the intriguing properties of RE elements. The evolution of this class of layered materials exemplifies the concept of crystal engineering, whereby a cationic 2D lattice is derived from the crystalline framework of RE(OH)3 via dimensional reduction and topology engineering. Subsequent chemical exfoliation leads to RE-based hydroxide nanosheets. These nanosheets are employed as LEGO-like building blocks to construct artificial hierarchical structures, which offer promising opportunities for realizing sophisticated functionalities.","PeriodicalId":48544,"journal":{"name":"Trends in Chemistry","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135706127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Single-crystalline covalent organic frameworks 单晶共价有机骨架
2区 化学
Trends in Chemistry Pub Date : 2023-10-01 DOI: 10.1016/j.trechm.2023.09.002
Cheng Qian, Hongwei Wu, Wei Liang Teo, Yaozu Liao, Yanli Zhao
{"title":"Single-crystalline covalent organic frameworks","authors":"Cheng Qian, Hongwei Wu, Wei Liang Teo, Yaozu Liao, Yanli Zhao","doi":"10.1016/j.trechm.2023.09.002","DOIUrl":"https://doi.org/10.1016/j.trechm.2023.09.002","url":null,"abstract":"Covalent organic frameworks (COFs) are a useful class of crystalline porous materials assembled from organic molecular precursors via covalent bonds. Single-crystalline COFs have gained increasing attention because of their unique advantages, such as well-defined structures and improved performance, compared with their polycrystalline counterparts. However, the development of such materials has been severely hampered due to the lack of general synthetic strategies and effective characterization methods. This review surveys recent advances in the preparation of single-crystalline COFs, provides a perspective on the current challenges, and proposes future directions for the exploration of this promising class of crystalline polymers.","PeriodicalId":48544,"journal":{"name":"Trends in Chemistry","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135607156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Subscription and Copyright Information 订阅及版权资料
2区 化学
Trends in Chemistry Pub Date : 2023-10-01 DOI: 10.1016/s2589-5974(23)00215-0
{"title":"Subscription and Copyright Information","authors":"","doi":"10.1016/s2589-5974(23)00215-0","DOIUrl":"https://doi.org/10.1016/s2589-5974(23)00215-0","url":null,"abstract":"","PeriodicalId":48544,"journal":{"name":"Trends in Chemistry","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134935334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Shape-controlled synthesis of metal nanocrystals: mind the surface heterogeneity 形状控制的金属纳米晶体合成:考虑表面不均匀性
2区 化学
Trends in Chemistry Pub Date : 2023-10-01 DOI: 10.1016/j.trechm.2023.08.004
Quynh N. Nguyen, Ruhui Chen, Younan Xia
{"title":"Shape-controlled synthesis of metal nanocrystals: mind the surface heterogeneity","authors":"Quynh N. Nguyen, Ruhui Chen, Younan Xia","doi":"10.1016/j.trechm.2023.08.004","DOIUrl":"https://doi.org/10.1016/j.trechm.2023.08.004","url":null,"abstract":"Shape-controlled metal nanocrystals have attracted growing interest due to their enhanced catalytic performance, cost-efficiency, and well-defined features for mechanistic investigations. However, the ultimate potential of these nanocrystals is limited by their surface heterogeneity. This review delves into the intricacies of surface heterogeneity, examining its role in dictating the sites for atom deposition and thereby the growth pattern of metal nanocrystals during colloidal synthesis. We also highlight the critical role of surface diffusion in preserving or overriding the impacts of surface heterogeneity, alongside the dynamic nature of surface structure throughout nanocrystal growth. Understanding and controlling the surface heterogeneity of nanocrystals are essential to the development of advanced catalytic materials.","PeriodicalId":48544,"journal":{"name":"Trends in Chemistry","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135274344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Curated materials data of hybrid perovskites: approaches and potential usage 混合钙钛矿的材料数据:方法和潜在的用途
2区 化学
Trends in Chemistry Pub Date : 2023-10-01 DOI: 10.1016/j.trechm.2023.08.005
Rayan Chakraborty, Volker Blum
{"title":"Curated materials data of hybrid perovskites: approaches and potential usage","authors":"Rayan Chakraborty, Volker Blum","doi":"10.1016/j.trechm.2023.08.005","DOIUrl":"https://doi.org/10.1016/j.trechm.2023.08.005","url":null,"abstract":"Over the past decade, hybrid perovskite research has evolved to a point where the literature contains an enormous volume of chemical and physical information. However, many essential material design challenges remain open for researchers to address. The dispersed nature of the large, rapidly growing body of hybrid perovskite materials data poses a barrier to systematic discovery efforts, which can be solved by materials property databases, either by high-throughput or by systematic, accurate human-curated efforts. This opinioned review article discusses the necessity, challenges, and requirements of building such data libraries. In light of using machine learning (ML) and related tools to solve specific problems, the importance of information related to different material attributes and properties is also highlighted.","PeriodicalId":48544,"journal":{"name":"Trends in Chemistry","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135274971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advisory Board and Contents 咨询委员会及内容
2区 化学
Trends in Chemistry Pub Date : 2023-10-01 DOI: 10.1016/s2589-5974(23)00212-5
{"title":"Advisory Board and Contents","authors":"","doi":"10.1016/s2589-5974(23)00212-5","DOIUrl":"https://doi.org/10.1016/s2589-5974(23)00212-5","url":null,"abstract":"","PeriodicalId":48544,"journal":{"name":"Trends in Chemistry","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134935342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of direct and CO2-oxidative dehydrogenation of propane 丙烷直接脱氢与co2氧化脱氢的比较
2区 化学
Trends in Chemistry Pub Date : 2023-09-01 DOI: 10.1016/j.trechm.2023.09.001
Yong Yuan, William N. Porter, Jingguang G. Chen
{"title":"Comparison of direct and CO2-oxidative dehydrogenation of propane","authors":"Yong Yuan, William N. Porter, Jingguang G. Chen","doi":"10.1016/j.trechm.2023.09.001","DOIUrl":"https://doi.org/10.1016/j.trechm.2023.09.001","url":null,"abstract":"Propane dehydrogenation to propylene has received increasing attention due to the fast growth in propylene demand and the exploration of shale gas containing propane. Direct dehydrogenation of propane (DDHP) offers high propylene selectivity but is limited by quick deactivation due to coke formation. CO2-assisted oxidative dehydrogenation of propane (CO2-ODHP) can consume CO2 and meanwhile reduce coke deposition via the reverse Boudouard reaction. In the current review, direct and CO2-assisted dehydrogenation of propane has been compared from three aspects: reaction mechanisms, catalyst compositions, and CO2 footprint analysis. As the average CO2 emissions from electricity generation decrease due to the utilization of renewable energy, CO2-ODHP potentially leads to a net-negative CO2 footprint while DDHP cannot.","PeriodicalId":48544,"journal":{"name":"Trends in Chemistry","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135589032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Designing nanoparticles for sustainable agricultural applications 为可持续农业应用设计纳米颗粒
2区 化学
Trends in Chemistry Pub Date : 2023-09-01 DOI: 10.1016/j.trechm.2023.07.004
Beza Tuga, Tana O’Keefe, Chaoyi Deng, Andrea T. Ligocki, Jason C. White, Christy L. Haynes
{"title":"Designing nanoparticles for sustainable agricultural applications","authors":"Beza Tuga, Tana O’Keefe, Chaoyi Deng, Andrea T. Ligocki, Jason C. White, Christy L. Haynes","doi":"10.1016/j.trechm.2023.07.004","DOIUrl":"https://doi.org/10.1016/j.trechm.2023.07.004","url":null,"abstract":"Progress toward achieving global food security continues to be hindered by several economic, geo-political, and environmental variables which has led the United Nations to place emphasis on achieving Zero Hunger by 2030. Thus, it is important to invest in novel, eco-friendly, and cost-effective solutions that will increase agricultural productivity. For this reason, nanoscale materials are increasingly being developed for use in agriculture with attention on controlling various properties such as size, shape, surface modifications, and transformations for improved impact in plants. With continued interdisciplinary and collaborative efforts among nanoparticle experts and plant scientists, the research area will evolve to identify the best nanoparticle properties for foliar application to plants.","PeriodicalId":48544,"journal":{"name":"Trends in Chemistry","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135427663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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