公开(公告)号：US20190314790A1

公开(公告)日：2019-10-17

申请号：US16465969

申请日：2018-06-01

Applicant: University of Connecticut

Inventor： Pu-Xian Gao ,  Xingxu Lu ,  Son Hoang

IPC: B01J23/42 ,  B01D53/94 ,  B01D53/86 ,  B01J21/06 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  B01J37/08 ,  B01J37/34 ,  B01J37/18 ,  C01G23/00 ,  C01G23/053 ,  F01N3/28 ,  F01N3/20

Abstract: A method of making a titanium dioxide nanowire array includes contacting a substrate with a solvent comprising a titanium (III) precursor, an acid, and an oxidant while microwave heating the solvent, thereby forming a hydrogen titanate H2Ti2O5.H2O nanowire array. The hydrogen titanate nanowire array is annealed to form a titanium dioxide nanowire array. The substrate is seeded with titanium dioxide before starting the hydrothermal synthesis of the hydrogen titanate nanowire array. The titanium dioxide nanowire array is loaded with a platinum group metal to form an exhaust gas catalyst. The titanium dioxide nanowire array can be used to catalyze oxidation of combustion exhaust.

公开(公告)号：US11465129B2

公开(公告)日：2022-10-11

申请号：US16465969

申请日：2018-06-01

Applicant: University of Connecticut

Inventor： Pu-Xian Gao ,  Xingxu Lu ,  Son Hoang

IPC: B01J23/42 ,  B01D53/86 ,  B01D53/94 ,  B01J21/06 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  B01J37/08 ,  B01J37/18 ,  B01J37/34 ,  C01G23/00 ,  C01G23/053 ,  F01N3/20 ,  F01N3/28 ,  B01J35/10 ,  B81C1/00 ,  B82Y40/00

Abstract: A method of making a titanium dioxide nanowire array includes contacting a substrate with a solvent comprising a titanium (III) precursor, an acid, and an oxidant while microwave heating the solvent, thereby forming a hydrogen titanate H2Ti2O5.H2O nanowire array. The hydrogen titanate nanowire array is annealed to form a titanium dioxide nanowire array. The substrate is seeded with titanium dioxide before starting the hydrothermal synthesis of the hydrogen titanate nanowire array. The titanium dioxide nanowire array is loaded with a platinum group metal to form an exhaust gas catalyst. The titanium dioxide nanowire array can be used to catalyze oxidation of combustion exhaust.