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Chemical Society Reviews

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https://www.readbyqxmd.com/read/30624450/new-trends-in-tailoring-active-sites-in-zeolite-based-catalysts
#1
REVIEW
Mariya Shamzhy, Maksym Opanasenko, Patricia Concepción, Agustín Martínez
This review addresses the recent developments and trends in tailoring the nature and local properties of active sites in zeolite-based catalysts, with a special focus on novel extra-large pore, layered (2D), nanocrystalline, and hierarchical (mesoporous) zeolites with enhanced pore accessibility. In the first part of the review, we discuss the latest achievements in the bottom-up (direct synthesis) and top-down (post-synthesis) approaches for isomorphous substitution in zeolites enabling control over the type (Brønsted, Lewis, or both), amount, strength, and location of acid sites...
January 9, 2019: Chemical Society Reviews
https://www.readbyqxmd.com/read/30608075/biaryl-synthesis-with-arenediazonium-salts-cross-coupling-ch-arylation-and-annulation-reactions
#2
REVIEW
François-Xavier Felpin, Saumitra Sengupta
The rich legacy of arenediazonium salts in the synthesis of unsymmetrical biaryls, built around the seminal works of Pschorr, Gomberg and Bachmann more than a century ago, continues to make important contributions at various evolutionary stages of modern biaryl synthesis. Based on in-depth mechanistic analysis and design of novel pathways and reaction conditions, the scope of biaryl synthesis with arenediazonium salts has enormously expanded in recent years through applications of transition metal/photoredox-catalysed cross-coupling, thermal/photosensitized radical chain CH-arylation of (hetero)arenes and arylative radical annulation reactions with alkynes...
January 4, 2019: Chemical Society Reviews
https://www.readbyqxmd.com/read/30608070/graphdiyne-synthesis-properties-and-applications
#3
REVIEW
Xin Gao, Huibiao Liu, Dan Wang, Jin Zhang
Graphdiyne (GDY), a new two-dimensional (2D) carbon allotrope, has been receiving increased attention. Its unique sp-sp2 carbon atoms, uniform pores, and highly π-conjugated structure provide promising potential in practical applications, such as gas separation, catalysis, water remediation, humidity sensor, and energy-related fields. In the recent years, considerable efforts have been expended toward the development of well-defined GDY. However, GDY materials still face numerous challenges, including the need for a more thorough understanding of the growth mechanism, strategies for synthesizing one- or few-layer single-crystalline GDY films, characterization of basic physicochemical properties, and achievement of promising applications...
January 4, 2019: Chemical Society Reviews
https://www.readbyqxmd.com/read/30604792/perovskite-precursor-solution-chemistry-from-fundamentals-to-photovoltaic-applications
#4
REVIEW
Minsu Jung, Sang-Geun Ji, Gwisu Kim, Sang Il Seok
Over the last several years, inorganic-organic hybrid perovskites have shown dramatic achievements in photovoltaic performance and device stability. Despite the significant progress in photovoltaic application, an in-depth understanding of the fundamentals of precursor solution chemistry is still lacking. In this review, the fundamental background knowledge of nucleation and crystal growth processes in solution including the LaMer model and Ostwald ripening process is described. This review article also highlights the recent progress in precursor-coordinating molecule interaction in solution along with the role of anti-solvent in the solvent engineering process to control nucleation and crystal growth...
January 3, 2019: Chemical Society Reviews
https://www.readbyqxmd.com/read/30603760/sustainable-technologies-for-water-purification-from-heavy-metals-review-and-analysis
#5
REVIEW
Sreenath Bolisetty, Mohammad Peydayesh, Raffaele Mezzenga
Water pollution is a global problem threatening the entire biosphere and affecting the life of many millions of people around the world. Not only is water pollution one of the foremost global risk factors for illness, diseases and death, but it also contributes to the continuous reduction of the available drinkable water worldwide. Delivering valuable solutions, which are easy to implement and affordable, often remains a challenge. Here we review the current state-of-the-art of available technologies for water purification and discuss their field of application for heavy metal ion removal, as heavy metal ions are the most harmful and widespread contaminants...
January 3, 2019: Chemical Society Reviews
https://www.readbyqxmd.com/read/30601526/strategies-to-control-zeolite-particle-morphology
#6
REVIEW
Shiying Li, Junfen Li, Mei Dong, Subing Fan, Tiansheng Zhao, Jianguo Wang, Weibin Fan
Aluminosilicate zeolites with controllable morphology have attracted considerable attention due to their potential applications in catalysis, adsorption, and separation technologies, as well as the biomedical field. However, the rational design and preparation of zeolites with the required morphology have not been achieved because the zeolite crystallization mechanism has not been fully understood, and therefore, the nucleation and crystal growth processes cannot be oriented. This paper reviews the progresses achieved in zeolite morphology control...
January 2, 2019: Chemical Society Reviews
https://www.readbyqxmd.com/read/30601502/single-crystal-silicon-based-electrodes-for-unbiased-solar-water-splitting-current-status-and-prospects
#7
REVIEW
Zhibin Luo, Tuo Wang, Jinlong Gong
Water splitting for hydrogen production by harvesting sunlight is widely accepted as one of the most promising routes to relieve the energy crisis and environmental issues caused by excessive use of fossil fuels. Earth-abundant silicon (Si) is emerging as a suitable candidate for a photoelectrode material for efficient solar water splitting. This review describes the current status and prospects of single-crystal Si-based photoelectrodes in photoelectrochemical (PEC) water splitting for hydrogen production...
January 2, 2019: Chemical Society Reviews
https://www.readbyqxmd.com/read/30601498/morphological-nanostructural-control-toward-intrinsically-stretchable-organic-electronics
#8
REVIEW
Rujun Ma, Shu-Yu Chou, Yu Xie, Qibing Pei
The development of intrinsically stretchable electronics poses great challenges in synthesizing elastomeric conductors, semiconductors and dielectric materials. While a wide range of approaches, from special macrostructural engineering to molecular synthesis, have been employed to afford stretchable devices, this review surveys recent advancements in employing various morphological and nanostructural control methods to impart mechanical flexibility and/or to enhance electrical properties. The focus will be on (1) embedding percolation networks of one-dimensional conductive materials such as metallic nanowires and carbon nanotubes in an elastomer matrix to accommodate large external deformation without imposing a large strain along the one-dimensional materials, (2) design strategies to achieve intrinsically stretchable semiconductor materials that include direct blending of semiconductors with elastomers and synthesizing semiconductor polymers with appropriate side chains, backbones, cross-linking networks, and flexible blocks, and (3) employing interpenetrating polymer networks, bottlebrush structures and introducing inclusions in stretchable polymeric dielectric materials to improve electrical performance...
January 2, 2019: Chemical Society Reviews
https://www.readbyqxmd.com/read/30601473/nanotechnology-based-antimicrobials-and-delivery-systems-for-biofilm-infection-control
#9
Yong Liu, Linqi Shi, Linzhu Su, Henny C van der Mei, Paul C Jutte, Yijin Ren, Henk J Busscher
Bacterial-infections are mostly due to bacteria in an adhering, biofilm-mode of growth and not due to planktonically growing, suspended-bacteria. Biofilm-bacteria are much more recalcitrant to conventional antimicrobials than planktonic-bacteria due to (1) emergence of new properties of biofilm-bacteria that cannot be predicted on the basis of planktonic properties, (2) low penetration and accumulation of antimicrobials in a biofilm, (3) disabling of antimicrobials due to acidic and anaerobic conditions prevailing in a biofilm, and (4) enzymatic modification or inactivation of antimicrobials by biofilm inhabitants...
January 2, 2019: Chemical Society Reviews
https://www.readbyqxmd.com/read/30575832/hypoxia-targeted-drug-delivery
#10
REVIEW
Amit Sharma, Jonathan F Arambula, Seyoung Koo, Rajesh Kumar, Hardev Singh, Jonathan L Sessler, Jong Seung Kim
Hypoxia is a state of low oxygen tension found in numerous solid tumours. It is typically associated with abnormal vasculature, which results in a reduced supply of oxygen and nutrients, as well as impaired delivery of drugs. The hypoxic nature of tumours often leads to the development of localized heterogeneous environments characterized by variable oxygen concentrations, relatively low pH, and increased levels of reactive oxygen species (ROS). The hypoxic heterogeneity promotes tumour invasiveness, metastasis, angiogenesis, and an increase in multidrug-resistant proteins...
December 21, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/30569917/conductive-nanomaterials-for-2d-and-3d-printed-flexible-electronics
#11
REVIEW
Alexander Kamyshny, Shlomo Magdassi
This review describes recent developments in the field of conductive nanomaterials and their application in 2D and 3D printed flexible electronics, with particular emphasis on inks based on metal nanoparticles and nanowires, carbon nanotubes, and graphene sheets. We present the basic properties of these nanomaterials, their stabilization in dispersions, formulation of conductive inks and formation of conductive patterns on flexible substrates (polymers, paper, textile) by using various printing technologies and post-printing processes...
December 20, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/30565610/recent-progress-in-covalent-organic-framework-thin-films-fabrications-applications-and-perspectives
#12
REVIEW
Han Wang, Zhuotong Zeng, Piao Xu, Lianshan Li, Guangming Zeng, Rong Xiao, Zhiyong Tang, Danlian Huang, Lin Tang, Cui Lai, Danni Jiang, Yang Liu, Huan Yi, Lei Qin, Shujing Ye, Xiaoya Ren, Wangwang Tang
As a newly emerging class of porous materials, covalent organic frameworks (COFs) have attracted much attention due to their intriguing structural merits (e.g., total organic backbone, tunable porosity and predictable structure). However, the insoluble and unprocessable features of bulk COF powder limit their applications. To overcome these limitations, considerable efforts have been devoted to exploring the fabrication of COF thin films with controllable architectures, which open the door for their novel applications...
December 19, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/30565609/barcoded-point-of-care-bioassays
#13
REVIEW
Mingzhu Yang, Yong Liu, Xingyu Jiang
Barcode technology can deliver batched information for patient healthcare. For clinical examinations, barcodes serve as reporters for labeling multiple targets, and meanwhile, facilitate improved sensitivity and specificity, thus enabling barcode as a promising alternative to traditional labels for biomarker identification and signal amplification. However, faced with the stringent claims of point-of-care (POC) bioassays, efforts are needed to advance current technologies toward rapidity, robustness, affordability, and user-friendliness...
December 19, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/30556818/rational-chemical-doping-of-metal-halide-perovskites
#14
REVIEW
Xinyuan Zhang, Lina Li, Zhihua Sun, Junhua Luo
Metal halide perovskites benefit from the combination of wide absorption, high carrier mobility, defect tolerance, moderate exciton binding energies, and versatility of solution processes, showing great promise in photovoltaics and optoelectronics. However, the issues of long-term instability and toxicity of lead are supposed to limit their further practical applications. Chemical doping of an impurity into metal halide perovskites was reported to be a relatively effective approach to solving these issues while providing additional tunable physical and chemical properties...
December 17, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/30548039/an-introduction-to-zwitterionic-polymer-behavior-and-applications-in-solution-and-at-surfaces
#15
Lewis D Blackman, Pathiraja A Gunatillake, Peter Cass, Katherine E S Locock
Zwitterionic polymers, including polyampholytes and polybetaines, are polymers with both positive and negative charges incorporated into their structure. They are a unique class of smart materials with great potential in a broad range of applications in nanotechnology, biomaterials science, nanomedicine and healthcare, as additives for bulk construction materials and crude oil, and in water remediation. In this Tutorial Review, we aim to highlight their structural diversity and design criteria, and their preparation using modern techniques...
December 14, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/30543263/practical-use-of-polymer-brushes-in-sustainable-energy-applications-interfacial-nanoarchitectonics-for-high-efficiency-devices
#16
REVIEW
Juan M Giussi, M Lorena Cortez, Waldemar A Marmisollé, Omar Azzaroni
The discovery and development of novel approaches, materials and manufacturing processes in the field of energy are compelling increasing recognition as a major challenge for contemporary societies. The performance and lifetime of energy devices are critically dependent on nanoscale interfacial phenomena. From the viewpoint of materials design, the improvement of current technologies inevitably relies on gaining control over the complex interface between dissimilar materials. In this sense, interfacial nanoarchitectonics with polymer brushes has seen growing interest due to its potential to overcome many of the limitations of energy storage and conversion devices...
December 13, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/30534770/nanomaterials-with-enzyme-like-characteristics-nanozymes-next-generation-artificial-enzymes-ii
#17
REVIEW
Jiangjiexing Wu, Xiaoyu Wang, Quan Wang, Zhangping Lou, Sirong Li, Yunyao Zhu, Li Qin, Hui Wei
Nanozymes are nanomaterials with enzyme-like characteristics (Chem. Soc. Rev., 2013, 42, 6060-6093). They have been developed to address the limitations of natural enzymes and conventional artificial enzymes. Along with the significant advances in nanotechnology, biotechnology, catalysis science, and computational design, great progress has been achieved in the field of nanozymes since the publication of the above-mentioned comprehensive review in 2013. To highlight these achievements, this review first discusses the types of nanozymes and their representative nanomaterials, together with the corresponding catalytic mechanisms whenever available...
December 11, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/30534736/correction-an-overview-on-enhancing-the-stability-of-lead-halide-perovskite-quantum-dots-and-their-applications-in-phosphor-converted-leds
#18
Yi Wei, Ziyong Cheng, Jun Lin
Correction for 'An overview on enhancing the stability of lead halide perovskite quantum dots and their applications in phosphor-converted LEDs' by Yi Wei et al., Chem. Soc. Rev., 2019, DOI: 10.1039/c8cs00740c.
December 11, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/30534704/proactively-modulating-mechanical-behaviors-of-materials-at-multiscale-for-mechano-adaptable-devices
#19
Geng Chen, Yajing Cui, Xiaodong Chen
How materials behave when subjected to mechanical stresses is studied by mechanics of materials. However, the application of flexible and stretchable devices exposes materials to dynamic mechanical environments. Therefore, mechano-adaptable materials and devices that can respond as pre-designed have been explored. There are two main ways to proactively modulate mechanical behaviors for materials, which involve molecular design and structural design. Molecular design has effectively integrated mechanically sensitive groups into synthetic materials for anticipated mechano-response...
December 10, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/30525133/rational-design-of-yolk-shell-nanostructures-for-photocatalysis
#20
REVIEW
Ang Li, Wenjin Zhu, Chengcheng Li, Tuo Wang, Jinlong Gong
Photocatalysis is a promising route to convert solar energy into chemical energy directly, providing an alternative solution to environment and natural resource problems. Theoretically, all photocatalytic reactions are driven by charge carriers whose behavior can be divided into charge generation, separation, migration and surface reactions. Efficiencies of charge utilization in every step determine the overall performance of photocatalysis. Yolk-shell (YS) structures can provide an ideal platform for the efficient utilization of charge carriers...
December 7, 2018: Chemical Society Reviews
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