公开(公告)号：US20190227030A1

公开(公告)日：2019-07-25

申请号：US16255486

申请日：2019-01-23

Applicant: CASE WESTERN RESERVE UNIVERSITY

Inventor： Xinyu Liu ,  Kailash Venkatraman

IPC: G01N27/416 ,  G01N27/42

Abstract: A sensor for detecting lead in an aqueous solution includes a copper working electrode, a counter electrode, a power supply for applying underpotential deposition of lead onto the copper electrode from the aqueous solution, a measuring device for providing measurement of a hydrogen evolution reaction (HER) current on the Pbupd-modified electrode, and a means for correlating the degree of suppression of the HER current to Pbupd coverage to determine the lead coverage and lead concentration of the solution.

公开(公告)号：US12241862B2

公开(公告)日：2025-03-04

申请号：US17480845

申请日：2021-09-21

Applicant: CASE WESTERN RESERVE UNIVERSITY

Inventor： Rohan Akolkar ,  Xinyu Liu ,  Kailash Venkatraman

IPC: G01N27/42 ,  G01N33/18

Abstract: A sensor for detecting lead in an aqueous solution includes a copper working electrode, a counter electrode, a power supply for applying underpotential deposition of lead onto the copper electrode, a measuring device for providing measurement of a hydrogen evolution reaction (HER) current on the Pbupd-modified electrode, and a controller configured to correlate the degree of suppression of the HER current to Pbupd coverage to determine the lead coverage and lead concentration of the solution.

公开(公告)号：US20220011263A1

公开(公告)日：2022-01-13

申请号：US17480845

申请日：2021-09-21

Applicant: CASE WESTERN RESERVE UNIVERSITY

Inventor： Rohan Akolkar ,  Xinyu Liu ,  Kailash Venkatraman

IPC: G01N27/42 ,  G01N33/18

Abstract: A sensor for detecting lead in an aqueous solution includes a copper working electrode, a counter electrode, a power supply for applying underpotential deposition of lead onto the copper electrode, a measuring device for providing measurement of a hydrogen evolution reaction (HER) current on the Pbupd-modified electrode, and a controller configured to correlate the degree of suppression of the HER current to Pbupd coverage to determine the lead coverage and lead concentration of the solution.

公开(公告)号：US11125717B2

公开(公告)日：2021-09-21

申请号：US16255486

申请日：2019-01-23

Applicant: CASE WESTERN RESERVE UNIVERSITY

Inventor： Rohan Akolkar ,  Xinyu Liu ,  Kailash Venkatraman

IPC: G01N27/416 ,  G01N27/42

Abstract: A sensor for detecting lead in an aqueous solution includes a copper working electrode, a counter electrode, a power supply for applying underpotential deposition of lead onto the copper electrode from the aqueous solution, a measuring device for providing measurement of a hydrogen evolution reaction (HER) current on the Pbupd-modified electrode, and a means for correlating the degree of suppression of the HER current to Pbupd coverage to determine the lead coverage and lead concentration of the solution.