	US 12,420,269 B1
	Simple preparation method and use of support of catalyst for hydrogenation
Jiuxuan Zhang, Nanjing (CN); Liu Yang, Nanjing (CN); Weihong Xing, Nanjing (CN); and Rizhi Chen, Nanjing (CN)
Assigned to NANJING TECH UNIVERSITY, Nanjing (CN)
Filed by NANJING TECH UNIVERSITY, Nanjing (CN)
Filed on May 21, 2025, as Appl. No. 19/214,086.
Application 19/214,086 is a continuation of application No. PCT/CN2023/092652, filed on May 8, 2023.
Claims priority of application No. 202310393613.5 (CN), filed on Apr. 13, 2023.
Int. Cl. B01J 27/26 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01)

CPC B01J 27/26 (2013.01) [B01J 37/0018 (2013.01); B01J 37/0236 (2013.01); B01J 37/082 (2013.01)]

10 Claims

1. A simple preparation method of a support of a catalyst for hydrogenation, comprising the following steps:

step 1, mixing 2-methylimidazole with a cobalt source to produce a mixture;

step 2, calcining the mixture obtained in the step 1 in an Ar atmosphere to produce Co@CN;

step 3, adding deionized water and a concentrated nitric acid solution to the Co@CN and stirring; and

step 4, conducting suction filtration to produce a solid, washing the solid several times with deionized water, and oven-drying to produce a nitrogen-doped carbon (CN) support;

wherein in the step 3, the concentrated nitric acid solution has a mass fraction of 66%, the Co@CN, the deionized water, and the concentrated nitric acid solution are in a mass ratio of 1:(20-30):(20-30), and the stirring is conducted for 30 min to 90 min at a temperature of 30° C. to 90° C. and a rate of 50 rpm to 300 rpm.