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Nanotechnology is the last century, the rise of a science, nanotechnology, nano-materials science is the main research content. In recent years, one-dimensional nanomaterials because of their novel physical and chemical properties as well as in many areas showing potential broad application prospects, and thus has become the forefront of the field of nano-materials and hot spots. ZnO is a II-VI direct band gap wide bandgap semiconductor materials, one-dimensional ZnO nanorods is a kind of optical characteristics and piezoelectric properties of materials, one-dimensional rod-like structure can be well aware of the force exerted on the rod ends changes into an electrical signal by the piezoelectric characteristics, and therefore suitable for nanoscale sensing materials of the pressure sensor, in addition, ZnO can be used as a photosensitive material, used in the light emitting diodes, photo resistors, photosensitive detector parts. One-dimensional ZnO nanorods due to its unique one-dimensional morphology, which has more than the bulk material excellent properties. Polyvinyl alcohol, citric acid, salicylic acid, polyethylene glycol as the auxiliary materials, PH values ??were in the case of 5,6,7,8,9 ZnO nanorods synthesized experimental results show that with PVA as PH auxiliary materials for the synthesis of a length of about 9:00 3 5 μm, a diameter of about 50 1 00nm of ZnO nanorods growth conditions for the 25 best experimental products a group. Through the ZnO nanorods growth mechanism that alcohol played a role in spatial confinement, and promote the growth of nanorods, PH value 9:00 complex ion Zn (NH 3 ) < sub> 4 2 will replace Zn 2 , complex ion Zn (NH 3 ) 4 2 is more suitable for the growth of ZnO nanorods. Manganese oxidation state with a variety and manganese oxide has a low price, environmental friendliness, etc., is expected to become high-performance battery electrode material has been widely used. Furthermore MnO 2 of high catalytic activity can be used to restore the car exhaust and factory emissions of nitrogen oxides in the exhaust gas catalytic oxidation of carbon monoxide and organic matter in the field of environmental protection also has a wide range of uses. One-dimensional MnO 2 nanorods bulk material more than excellent properties can be widely used in energy storage, catalysis and other fields. Potassium metaborate in the auxiliary material, potassium borate, sodium chloride, potassium chloride, a mixed solution of manganese acetate as the precursor by heating the precursors synthesized with a length of approximately 5 1 0μm a diameter of about 50 1 00nm of MnO 2 nanorods. For MnO 2 nanorods growth mechanism studies, that potassium borate heated at high temperatures generated during B 2 O 3 Inorganic High molecular network structure, the network has a similar polyvinyl alcohol polymer network, played the role of spatial confinement, promoting MnO 2 nanorods growth, NaCl-KCl molten salt has played a dispersant compound, thermal, mass effect, help MnO 2 nanorods growth.
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