Twinning Driven Growth of Manganese Oxide Hollow Cones through Self-Assembly of Nanorods in Water

2009 ◽  
Vol 9 (6) ◽  
pp. 2562-2565 ◽  
Author(s):  
David Portehault ◽  
Sophie Cassaignon ◽  
Emmanuel Baudrin ◽  
Jean-Pierre Jolivet
Keyword(s):  
Manganese Oxide ◽  
Self Assembly

Self-assembly of well-ordered whisker-like manganese oxide arrays on carbon fiber paper and its application as electrode material for supercapacitors

2012 ◽  
Vol 22 (17) ◽  
pp. 8634 ◽  
Author(s):  
Yongsong Luo ◽  
Jian Jiang ◽  
Weiwei Zhou ◽  
Huanping Yang ◽  
Jingshan Luo ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Manganese Oxide ◽  
Electrode Material ◽  
Self Assembly ◽  
Carbon Fiber Paper

Preparation of Au/MnOx Catalyst and its Catalytic Performance for CO Oxidation

2015 ◽  
Vol 1092-1093 ◽  
pp. 984-987
Author(s):  
Jia Yu Xu ◽  
Hong Peng Zhang ◽  
Chun Xiao Yan ◽  
Chao Hua Zhou ◽  
Wen He Ma ◽  
...  
Keyword(s):  
Manganese Oxide ◽  
Gold Nanoparticle ◽  
Self Assembly ◽  
Fixed Bed ◽  
Catalytic Performance ◽  
Intrinsic Activity ◽  
Manganese Oxide Nanoparticles ◽  
Nanoparticle Catalysts ◽  
Assembly Method ◽  
Supported Gold

In recent years, with the aggravating of environmental pollution, the purification of carbon monoxide is currently a subject of interest. The catalytic oxidation method is an effective way. Manganese oxide nanoparticles were prepared by emulsion self-assembly method and then, synthetic and commercial manganese oxide-supported gold nanoparticle catalysts were successfully synthesized by the deposition-precipitation (DP) method. The catalysts were characterized by XRD, Raman, BET, ICP and HRTEM. The activity of the oxide and oxide-supported gold nanoparticle catalysts were evaluated on the fixed bed microreactor and Au/MnOx had the highest activity. The intrinsic activity of Au/MnOx at 35 °C is 0.81 molCO·mol-1Au·min-1. Compared with O2, CO concentration has bigger effect on the reaction activity.

Synthesis of highly monodisperse porous manganese oxide spheres using a butyric acid microemulsion

2015 ◽  
Vol 51 (10) ◽  
pp. 1961-1964 ◽  
Author(s):  
Stanton Ching ◽  
Ian J. Richter ◽  
Kathryn A. Tutunjian ◽  
David A. Kriz ◽  
Yumi Kovic
Keyword(s):  
Manganese Oxide ◽  
Butyric Acid ◽  
Self Assembly

Highly monodisperse manganese oxide spheres are generated by self-assembly using a butyric acid microemulsion.

Particle Size Control and Self-Assembly Processes in Novel Colloids of Nanocrystalline Manganese Oxide

1999 ◽  
Vol 103 (35) ◽  
pp. 7416-7428 ◽  
Author(s):  
Stephanie L. Brock ◽  
Maria Sanabria ◽  
Steven L. Suib ◽  
Volker Urban ◽  
Pappannan Thiyagarajan ◽  
...  
Keyword(s):  
Particle Size ◽  
Manganese Oxide ◽  
Self Assembly ◽  
Size Control ◽  
Particle Size Control

In vitro and in vivo polysaccharides assembly: ultrastructural and cytochemical study of growing plant cell wall components.

1978 ◽  
Vol 36 (2) ◽  
pp. 434-435
Author(s):  
D. Reis ◽  
B. Vian ◽  
J. C. Roland
Keyword(s):  
Cell Wall ◽  
Self Assembly ◽  
Plant Cell Wall ◽  
Higher Plants ◽  
Three Dimensional ◽  
Cytochemical Study ◽  
Wall Components

Wall morphogenesis in higher plants is a problem still open to controversy. Until now the possibility of a transmembrane control and the involvement of microtubules were mostly envisaged. Self-assembly processes have been observed in the case of walls of Chlamydomonas and bacteria. Spontaneous gelling interactions between xanthan and galactomannan from Ceratonia have been analyzed very recently. The present work provides indications that some processes of spontaneous aggregation could occur in higher plants during the formation and expansion of cell wall.Observations were performed on hypocotyl of mung bean (Phaseolus aureus) for which growth characteristics and wall composition have been previously defined.In situ, the walls of actively growing cells (primary walls) show an ordered three-dimensional organization (fig. 1). The wall is typically polylamellate with multifibrillar layers alternately transverse and longitudinal. Between these layers intermediate strata exist in which the orientation of microfibrils progressively rotates. Thus a progressive change in the morphogenetic activity occurs.

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