Journal ArticleDOI
Nanomaterials of high surface energy with exceptional properties in catalysis and energy storage
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TLDR
This critical review presents a review of the progress made for producing shape-controlled synthesis of nanomaterials of high surface energy using electrochemical and wet chemistry techniques and discusses important nanommaterials such as nanocrystal catalysts based on Pt, Pd, Au and Fe, metal oxides TiO(2) and SnO( 2), as well as lithium Mn-richMetal oxides.Abstract:
The properties of nanomaterials for use in catalytic and energy storage applications strongly depends on the nature of their surfaces. Nanocrystals with high surface energy have an open surface structure and possess a high density of low-coordinated step and kink atoms. Possession of such features can lead to exceptional catalytic properties. The current barrier for widespread industrial use is found in the difficulty to synthesise nanocrystals with high-energy surfaces. In this critical review we present a review of the progress made for producing shape-controlled synthesis of nanomaterials of high surface energy using electrochemical and wet chemistry techniques. Important nanomaterials such as nanocrystal catalysts based on Pt, Pd, Au and Fe, metal oxides TiO2 and SnO2, as well as lithium Mn-rich metal oxides are covered. Emphasis of current applications in electrocatalysis, photocatalysis, gas sensor and lithium ion batteries are extensively discussed. Finally, a future synopsis about emerging applications is given (139 references).read more
Citations
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Journal ArticleDOI
Shape-Controllable Pulse Electrodeposition of Ultrafine Platinum Nanodendrites for Methanol Catalytic Combustion and the Investigation of their Local Electric Field Intensification by Electrostatic Force Microscope and Finite Element Method
TL;DR: In this paper, shape-controllable ultrafine platinum (Pt) nanodendrites have been synthesized by a facile, one-step pulse electrodeposition method in the absence of any organic additive.
Journal ArticleDOI
Laser-irradiation induced synthesis of spongy AuAgPt alloy nanospheres with high-index facets, rich grain boundaries and subtle lattice distortion for enhanced electrocatalytic activity
Tao Zhang,Tao Zhang,Yu Bai,Yiqiang Sun,Yiqiang Sun,Lifeng Hang,Lifeng Hang,Xinyang Li,Dilong Liu,Xianjun Lyu,Cuncheng Li,Weiping Cai,Yue Li +12 more
TL;DR: In this article, a facile laser-irradiation induced alloying and subsequent chemical etching method was developed to prepare spongy AuAgPt alloy nanospheres with high-index facets, rich grain boundaries and subtle lattice distortion.
Journal ArticleDOI
Self-assembled AuNPs on sulphur-doped graphene: a dual and highly efficient electrochemical sensor for nitrite (NO2−) and nitric oxide (NO)
Sajad Ahmad Bhat,Sarwar Ahmad Pandit,Mudasir Ahmad Rather,Ghulam Mohd Rather,Nusrat Rashid,Pravin P. Ingole,Mohsin Ahmad Bhat +6 more
TL;DR: In this article, a simple strategy for the synthesis of self-assembled gold nanoparticles (AuNPs) on sulphur-doped graphene (S-Gr) to form AuNPs-SGr nanohybrids is presented.
Journal ArticleDOI
Spherical and sheetlike Ag/AgCl nanostructures: interesting photocatalysts with unusual facet-dependent yet substrate-sensitive reactivity.
Yunfan Shen,Yunfan Shen,Penglei Chen,Penglei Chen,Dan Xiao,Dan Xiao,Chuncheng Chen,Mingshan Zhu,Tiesheng Li,Wangong Ma,Minghua Liu +10 more
TL;DR: It is shown that compared to the spherical Ag/AgCl nanostructures, the sheetlike counterparts, wherein the AgCl nanospecies are predominantly enriched with {111} facets, could exhibit superior catalytic performances toward the photodegradation of methyl orange.
Journal ArticleDOI
Hematite concave nanocubes and their superior catalytic activity for low temperature CO oxidation
Hanfeng Liang,Xinde Jiang,Zhengbing Qi,Wei Chen,Z.T. Wu,Binbin Xu,Zhoucheng Wang,Jinxiao Mi,Qingbiao Li +8 more
TL;DR: Hematite (α-Fe2O3) concave nanocubes bound by high-index {1344̄} and {123̄8} facets were synthesized and their catalytic activity for CO oxidation were also investigated.
References
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Journal ArticleDOI
Gold nanoparticles: assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology.
TL;DR: A review of gold nanoparticles can be found in this article, where the most stable metal nanoparticles, called gold colloids (AuNPs), have been used for catalysis and biology applications.
Journal ArticleDOI
Chemistry and properties of nanocrystals of different shapes.
TL;DR: The interest in nanoscale materials stems from the fact that new properties are acquired at this length scale and, equally important, that these properties are equally important.
Journal ArticleDOI
Shape‐Controlled Synthesis of Metal Nanocrystals: Simple Chemistry Meets Complex Physics?
TL;DR: A comprehensive review of current research activities that center on the shape-controlled synthesis of metal nanocrystals, including a brief introduction to nucleation and growth within the context of metal Nanocrystal synthesis, followed by a discussion of the possible shapes that aMetal nanocrystal might take under different conditions.
Journal ArticleDOI
Anatase TiO(2) single crystals with a large percentage of reactive facets
Hua Gui Yang,Chenghua Sun,Shi-Zhang Qiao,Jin Zou,Gang Liu,Sean C. Smith,Hui-Ming Cheng,Gao Qing Lu +7 more
TL;DR: This work synthesized uniform anatase TiO2 single crystals with a high percentage (47 per cent) of {001} facets using hydrofluoric acid as a morphology controlling agent and demonstrates that for fluorine-terminated surfaces this relative stability is reversed.
Journal ArticleDOI
Battery materials for ultrafast charging and discharging
Byoungwoo Kang,Gerbrand Ceder +1 more
TL;DR: It is shown that batteries which obtain high energy density by storing charge in the bulk of a material can also achieve ultrahigh discharge rates, comparable to those of supercapacitors.