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Note: according to user requirements of nano particle can provide different size products. Product performance and application: Graphene is one of the most interesting new materials. Its structure is composed of two symmetrical and nested sublattices. The doping of heterogeneous atoms is an important method to break the symmetry structure and modulate its physical properties. Nitrogen atoms have similar sizes to carbon atoms and are relatively easy to be doped into the lattice of graphene. Therefore, nitrogen doping plays an important role in the research of graphene materials. In monolayer graphene, substitution doping can be used to alter its electronic properties during growth. Nitrogen doping of graphene can open the band gap and adjust the type of conduction, change the electronic structure, and improve the density of free carriers, so as to improve the conductivity and stability of graphene. In addition, the introduction of nitrogen-containing atomic structure into the carbon grid of graphene can increase the active sites adsorbed on the surface of graphene, thus enhancing the interaction between metal particles and graphene. Therefore, the application of nitrogen-doped graphene to energy storage devices has more superior electrochemical properties and is expected to develop into a high-performance electrode material. Existing studies have also shown that nitrogen-doped graphene can significantly improve the capacity characteristics, rapid charge and discharge capacity and cycle life of energy storage materials, and it has great application potential in the field of energy storage. Nitrogen-doped graphene is one of the important ways to functionalize graphene and plays a key role in expanding the application field of graphene. Nitrogen-doped graphene can significantly improve the capacity characteristics, rapid charge and discharge capacity and cycle life of energy storage materials, and has great application potential in chemical energy storage systems such as supercapacitors, lithium ion batteries, lithium sulfur batteries and lithium empty batteries. Storage conditions This product should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation. | ||||||||||||||||
Q: Can you draw up a quote/proforma invoice for me? A: Yes, our sales team can provide official quotes for you.However, you must first specify the billing address, shipping address, e-mail address, phone number and shipping method. We cannot create an accurate quote without this information. Q: How do you ship my order? Can you ship “freight collect”? A: We can ship your order through Fedex, TNT, DHL, or EMS on your account or prepayment. We also ship"freight collect" against your account. You will receive the goods in Next 2-5 Days after shipments, For items that are not in stock, the delivery schedule will vary based on the item.Please contact our sales team to inquire whether a material is in stock. Q: Do you accept purchase orders? A: We accept purchase orders from customers that have acredit history with us, you can fax, or email the purchase order to us. Please make sure the purchase order has both the company/institution letterhead and authorized signature on it. Also, you must specify the contact person, shipping address, email address, phone number, shipping method. Q: How can I pay for my order? Q: About the payment, we accept telegraphic transfer,western union and PayPal. L/C is only for above 50000USD deal.Or by mutual agreement,both sides can accept the payment terms. No matter which payment method you chose, please send us the bank wire by fax or email after you finished your payment. Q: Are there any other costs? A: Beyond product costs and shipping costs, we do not chargeany fees. Q: Can you customize a product for me? A: Of course. If there is a nanoparticle that we do not have in stock,then yes, it is generally possible for us to get it produced for you. However,it usually requires a minimum of quantities ordered, and about 1-2 weeks lead time. Q. Other. A: According to every specific orders, we will discuss with customer about the suitable payment method, cooperate with each other to better complete the transportation and related transactions. | ||||||||||||||||
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