Journal ArticleDOI
Nanomaterials of high surface energy with exceptional properties in catalysis and energy storage
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
More filters
Journal ArticleDOI
Metal Catalysts for Heterogeneous Catalysis: From Single Atoms to Nanoclusters and Nanoparticles.
Lichen Liu,Avelino Corma +1 more
TL;DR: This Review will compare the results obtained from different systems and try to give a picture on how different types of metal species work in different reactions and give perspectives on the future directions toward better understanding of the catalytic behavior of different metal entities in a unifying manner.
Journal ArticleDOI
Metal Oxides and Oxysalts as Anode Materials for Li Ion Batteries
Journal ArticleDOI
Metal–air batteries: from oxygen reduction electrochemistry to cathode catalysts
Fangyi Cheng,Jun Chen +1 more
TL;DR: The battery electrochemistry and catalytic mechanism of oxygen reduction reactions are discussed on the basis of aqueous and organic electrolytes, and the design and optimization of air-electrode structure are outlined.
Journal ArticleDOI
Oxygen electrocatalysts in metal–air batteries: from aqueous to nonaqueous electrolytes
TL;DR: This review focuses on the major obstacle of sluggish kinetics of the cathode in both batteries, and summary the fundamentals and recent advances related to the oxygen catalyst materials, and several future research directions are proposed based on the results achieved.
Journal ArticleDOI
Global life cycle releases of engineered nanomaterials
TL;DR: In this paper, the authors combined market information and material flow modeling to produce the first global assessment of the likely ENM emissions to the environment and landfills, estimating that 63-91% of over 260,000-309,000 metric tons of global ENM production in 2010 ended up in landfill, with the balance released into soils, water bodies, and atmosphere.
References
More filters
Journal ArticleDOI
Highly Efficient Photocatalyst: TiO2 Microspheres Produced from TiO2 Nanosheets with a High Percentage of Reactive {001} Facets
Zhaoke Zheng,Baibiao Huang,Xiaoyan Qin,Xiaoyang Zhang,Ying Dai,Minhua Jiang,Peng Wang,Myung-Hwan Whangbo +7 more
Journal ArticleDOI
Applications of surface X-ray scattering to electrochemistry problems
Z. Nagy,Hoydoo You +1 more
TL;DR: In this article, applications of synchrotron X-ray scattering to electrochemistry problems are briefly reviewed ranging from submonolayer level phenomena, through nanometer size phenomena, to submicron size phenomena; that is, covering the full range of the 'interphase' at an electrode surface.
Journal ArticleDOI
Electrochemical preparation of Pd nanorods with high-index facets
TL;DR: Fivefold twinned Pd nanorods bounded by high-index facets of {hk0} or {hkk} were prepared by an electrochemical method and tested as electrocatalysts of high activity for ethanol oxidation.
Journal ArticleDOI
Boron-Doped Palladium Nanoparticles on Carbon Black as a Superior Catalyst for Formic Acid Electro-oxidation
TL;DR: In this paper, high-deterministic boron-doped palladium nanoparticles supported on carbon black (Pd−B/C) with high Pd loading were synthesized through an aqueous process using dimethylamine borane as the reducing agent.
Journal ArticleDOI
Growth of silver nanowires from solutions: A cyclic penta-twinned-crystal growth mechanism
TL;DR: The structural information of the nanoparticles synthesized at room temperature is proposed that the formation of the cyclic penta-twinned structure is due to the stacking fault and the intrinsic equilibrium structures of the lower energy.