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JournalISSN: 0959-9428

Journal of Materials Chemistry

About: Journal of Materials Chemistry is an academic journal. The journal publishes majorly in the area(s): Graphene & Anode. It has an ISSN identifier of 0959-9428. Over the lifetime, 38502 publication(s) have been published receiving 1992668 citation(s).

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Topics: Graphene, Anode, Catalysis ...read more
Papers
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Journal ArticleDOI: 10.1039/B512799H
Sasha Stankovich1, Richard D. Piner1, Xinqi Chen1, Nianqiang Wu1  +2 moreInstitutions (1)
Abstract: For the first time, stable aqueous dispersions of polymer-coated graphitic nanoplatelets can be prepared via an exfoliation/in-situ reduction of graphite oxide in the presence of poly(sodium 4-styrenesulfonate).

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Topics: Graphite oxide (60%), Exfoliation joint (54%), Graphite (50%)

2,381 Citations


Open accessJournal ArticleDOI: 10.1039/B800274F
Abstract: Graphitic carbon nitride, g-C3N4, can be made by polymerization of cyanamide, dicyandiamide or melamine. Depending on reaction conditions, different materials with different degrees of condensation, properties and reactivities are obtained. The firstly formed polymeric C3N4 structure, melon, with pendant amino groups, is a highly ordered polymer. Further reaction leads to more condensed and less defective C3N4 species, based on tri-s-triazine (C6N7) units as elementary building blocks. High resolution transmission electron microscopy proves the extended two-dimensional character of the condensation motif. Due to the polymerization-type synthesis from a liquid precursor, a variety of material nanostructures such as nanoparticles or mesoporous powders can be accessed. Those nanostructures also allow fine tuning of properties, the ability for intercalation, as well as the possibility to give surface-rich materials for heterogeneous reactions. Due to the special semiconductor properties of carbon nitrides, they show unexpected catalytic activity for a variety of reactions, such as for the activation of benzene, trimerization reactions, and also the activation of carbon dioxide. Model calculations are presented to explain this unusual case of heterogeneous, metal-free catalysis. Carbon nitride can also act as a heterogeneous reactant, and a new family of metal nitride nanostructures can be accessed from the corresponding oxides.

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Topics: Graphitic carbon nitride (72%), Carbon nitride (66%), Nitride (60%) ...read more

2,347 Citations


Journal ArticleDOI: 10.1039/B509097K
Abstract: Organic–inorganic hybrid materials do not represent only a creative alternative to design new materials and compounds for academic research, but their improved or unusual features allow the development of innovative industrial applications. Nowadays, most of the hybrid materials that have already entered the market are synthesised and processed by using conventional soft chemistry based routes developed in the eighties. These processes are based on: a) the copolymerisation of functional organosilanes, macromonomers, and metal alkoxides, b) the encapsulation of organic components within sol–gel derived silica or metallic oxides, c) the organic functionalisation of nanofillers, nanoclays or other compounds with lamellar structures, etc. The chemical strategies (self-assembly, nanobuilding block approaches, hybrid MOF (Metal Organic Frameworks), integrative synthesis, coupled processes, bio-inspired strategies, etc.) offered nowadays by academic research allow, through an intelligent tuned coding, the development of a new vectorial chemistry, able to direct the assembling of a large variety of structurally well defined nano-objects into complex hybrid architectures hierarchically organised in terms of structure and functions. Looking to the future, there is no doubt that these new generations of hybrid materials, born from the very fruitful activities in this research field, will open a land of promising applications in many areas: optics, electronics, ionics, mechanics, energy, environment, biology, medicine for example as membranes and separation devices, functional smart coatings, fuel and solar cells, catalysts, sensors, etc.

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2,191 Citations


Journal ArticleDOI: 10.1039/C2JM34690G
Haitao Li1, Zhenhui Kang1, Yang Liu1, Shuit-Tong Lee1Institutions (1)
Abstract: Carbon nanodots (C-dots) have generated enormous excitement because of their superiority in water solubility, chemical inertness, low toxicity, ease of functionalization and resistance to photobleaching. In this review, by introducing the synthesis and photo- and electron-properties of C-dots, we hope to provide further insight into their controversial emission origin (particularly the upconverted photoluminescence) and to stimulate further research into their potential applications, especially in photocatalysis, energy conversion, optoelectronics, and sensing.

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1,990 Citations


Journal ArticleDOI: 10.1039/C3TA10518K
Tom Baikie1, Yanan Fang1, Jeannette Kadro1, Martin Schreyer  +4 moreInstitutions (2)
Abstract: The hybrid organic–inorganic perovskite (CH3NH3)PbI3 may find application in next generation solid-state sensitised solar cells. Although this material and related perovskites were discovered many decades ago, questions remain concerning their diverse structural chemistry and unusual properties. The article presents a review of previous work and provides a detailed description of the preparation, structural characterisation and physical characteristics of (CH3NH3)PbI3. The phase changes exhibited by (CH3NH3)PbI3 have been probed using variable temperature powder and single crystal X-ray diffraction, combined with differential scanning calorimetry, thermogravimetric analysis and phase contrast transmission electron microscopy. The optical band gap for (CH3NH3)PbI3 determined by UV-Visible spectroscopy was compared to values obtained from density-of-state simulation of the electronic band structure.

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Topics: Perovskite (structure) (55%), Band gap (54%), Crystal chemistry (54%) ...read more

1,896 Citations


Performance
Metrics
No. of papers from the Journal in previous years
YearPapers
20212,270
20202,327
20192,692
20182,633
20172,657
20162,097

Top Attributes

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Journal's top 5 most impactful authors

Ivan P. Parkin

105 papers, 6.5K citations

Guozhong Cao

58 papers, 3.5K citations

Yongfang Li

55 papers, 2.7K citations

Lei Jiang

52 papers, 3.7K citations

Paul O'Brien

47 papers, 2.9K citations

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