公开(公告)号：US20190094171A1

公开(公告)日：2019-03-28

申请号：US16146476

申请日：2018-09-28

Applicant: Honeywell International Inc.

Inventor： Ling LIU ,  Yan ZHANG ,  Qian ZHENG

IPC: G01N27/403 ,  G01N27/404 ,  C23C30/00 ,  H01M4/88 ,  H01M4/86 ,  H01M4/90

Abstract: A gas detector includes an electrochemical gas sensor. The sensor includes a plurality of electrodes. At least one of the electrodes is formed of a catalyst/binder slurry which is halftone printed onto a substrate. The composite printed element and substrate are sintered to form the electrode.

公开(公告)号：US20210116411A1

公开(公告)日：2021-04-22

申请号：US17128726

申请日：2020-12-21

Applicant: Honeywell International Inc.

Inventor： Ling LIU ,  Yan ZHANG ,  Qian ZHENG

IPC: G01N27/403 ,  C23C30/00 ,  G01N27/404 ,  H01M4/88

Abstract: A gas detector includes an electrochemical gas sensor. The sensor includes a plurality of electrodes. At least one of the electrodes is formed of a catalyst/binder slurry which is halftone printed onto a substrate. The composite printed element and substrate are sintered to form the electrode.

公开(公告)号：US20200292486A1

公开(公告)日：2020-09-17

申请号：US16760057

申请日：2017-11-01

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Ling LIU ,  Lei XIAO ,  Jianming JIN ,  Yan ZHANG ,  Feng LIANG

IPC: G01N27/413

Abstract: Embodiments relate generally to systems and methods for operating an electrochemical oxygen sensor at low relative humidity (i.e., 15% RH or less). A method may comprise operating an electrochemical sensor to detect oxygen in the field, wherein the electrochemical sensor comprises one or more electrodes and an electrolyte configured to electrically connect the one or more electrodes with an initial concentration of approximately 8 M sulfuric acid; and maintaining the sensor accuracy during the operation of the sensor to detect oxygen in the field, wherein the relative humidity of the environment is approximately 15% or less, without recalibrating the sensor using a source of nitrogen.