By LZH | 11 August 2023 | 0 Comments
Electrodes of Nickel boride
What is Nickel boride?
Nickel boride is a nonmagnetic and non-pyrophoric black powder whose catalytic activity in catalytic hydrogenation and electrocatalytic hydrogenation reactions is similar to that of Raney nickel. Nickel boride electrodes obtained by pressing the powder have a very reproducible surface area since there is no need for an activation method that can modify the surface irregularly, as in the case of RaNi electrodes obtained by leaching the pressed Raney alloy. However, the same electrode was used during the entire experiment for each solvent to ensure that the observations made were due to changes in the solution composition and not to changes on the electrode itself.
The hydrogen evolution reaction at nickel boride pressed powder electrodes
The hydrogen evolution reaction (HER) at nickel boride pressed powder electrodes has been studied under conditions used in the electrocatalytic hydrogenation (ECH) of organic compounds (aqueous methanolic (ethanolic) solution containing 0.1 M NaCl and 0.1 M H, BO,). It was shown by steady-state polarization and ac impedance measurements that the electrodes have about the same activity, the same large surface area (roughness factor), and the same intrinsic activity under these conditions as in an aqueous 1 M NaOH solution. The ac impedance results were well approximated by the CPE model. The parameters obtained were similar, and the HER occurred according to the Volmer-Heyrovsky mechanism in all the media studied. In summary, we have shown that it is possible to extrapolate the results obtained from the HER in aqueous alkali to the media used for the ECH studies.
Electrodes of Nickel boride
Nickel boride (Ni'B) was obtained as a powder (average particle size of 0.5 p,m and specific surface area of 9 m2 g-') (7) by reduction of nickel acetate with NaBH4 in aqueous NaOH (9). The electrodes were obtained by pressing the particles atp = 120 NIPa at room temperature. Silver epoxy (EPO-TEK H20E, Epoxy Tech., Inc) was used to ensure agoodelectricalcontact. One face and the sides of electrodes were coated with Epofix resin (Struers), known for its stability (i.e., no leaching) in alkaline solution (10- 12), in order to obtain aprojectedgeometric surface area of 1.1 cm' and avoid the effect of the edge plane defects.
Price of Nickel boride
Nickel boride particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of Nickel boride. A large amount of large amount will be lower. The Price of Nickel boride is on our company's official website.
Nickel boride supplier
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including Nickel boride, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective Nickel boride, you are welcome to contact us or inquire at any time.
Nickel boride is a nonmagnetic and non-pyrophoric black powder whose catalytic activity in catalytic hydrogenation and electrocatalytic hydrogenation reactions is similar to that of Raney nickel. Nickel boride electrodes obtained by pressing the powder have a very reproducible surface area since there is no need for an activation method that can modify the surface irregularly, as in the case of RaNi electrodes obtained by leaching the pressed Raney alloy. However, the same electrode was used during the entire experiment for each solvent to ensure that the observations made were due to changes in the solution composition and not to changes on the electrode itself.
The hydrogen evolution reaction at nickel boride pressed powder electrodes
The hydrogen evolution reaction (HER) at nickel boride pressed powder electrodes has been studied under conditions used in the electrocatalytic hydrogenation (ECH) of organic compounds (aqueous methanolic (ethanolic) solution containing 0.1 M NaCl and 0.1 M H, BO,). It was shown by steady-state polarization and ac impedance measurements that the electrodes have about the same activity, the same large surface area (roughness factor), and the same intrinsic activity under these conditions as in an aqueous 1 M NaOH solution. The ac impedance results were well approximated by the CPE model. The parameters obtained were similar, and the HER occurred according to the Volmer-Heyrovsky mechanism in all the media studied. In summary, we have shown that it is possible to extrapolate the results obtained from the HER in aqueous alkali to the media used for the ECH studies.
Electrodes of Nickel boride
Nickel boride (Ni'B) was obtained as a powder (average particle size of 0.5 p,m and specific surface area of 9 m2 g-') (7) by reduction of nickel acetate with NaBH4 in aqueous NaOH (9). The electrodes were obtained by pressing the particles atp = 120 NIPa at room temperature. Silver epoxy (EPO-TEK H20E, Epoxy Tech., Inc) was used to ensure agoodelectricalcontact. One face and the sides of electrodes were coated with Epofix resin (Struers), known for its stability (i.e., no leaching) in alkaline solution (10- 12), in order to obtain aprojectedgeometric surface area of 1.1 cm' and avoid the effect of the edge plane defects.
Price of Nickel boride
Nickel boride particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of Nickel boride. A large amount of large amount will be lower. The Price of Nickel boride is on our company's official website.
Nickel boride supplier
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including Nickel boride, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective Nickel boride, you are welcome to contact us or inquire at any time.
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