公开(公告)号：US11761110B2

公开(公告)日：2023-09-19

申请号：US17837131

申请日：2022-06-10

Applicant: Qingdao University of Technology

Inventor： Zuquan Jin ,  Xiaoying Zhang ,  Jihong Jiang ,  Zhaoyi Chen ,  Pengcheng Ren ,  Xiaoqing Wang

IPC: C25D9/08 ,  C03C17/42 ,  C23F13/12 ,  C23F13/20

CPC classification number: C25D9/08 ,  C03C17/42 ,  C23F13/12 ,  C23F13/20 ,  C03C2217/217 ,  C03C2217/231 ,  C03C2217/254 ,  C03C2217/78 ,  C03C2218/111 ,  C23F2201/02

Abstract: The present invention relates to a Z-type heterojunction photoanode film used for the photocathode protection of a reinforcing bar, the preparation method thereof and a method for the corrosion inhibition of mental materials from concrete structures in marine engineering by using the Z-type heterojunction photoanode film used for the photocathode protection of a reinforcing bar. The preparation method includes steps of preparing Fe2O3 on the conducting surface of a clean conductive substrate through the hydrothermal process, preparing Fe2O3-PANI composite photoanode film by depositing polyaniline on the surface of Fe2O3 through the electrochemical synthesis and preparing Ru-Fe2O3-PANI composite photoanode film on the surface of the Fe2O3-PANI composite photoanode film through the in situ chemical reduction method. The technical solution in the present invention can achieve highly effective photocathode protection of a reinforcing bar from concretes in marine engineering and improve the durability of concrete structures in marine engineering.

公开(公告)号：US20230227993A1

公开(公告)日：2023-07-20

申请号：US17837131

申请日：2022-06-10

Applicant: Qingdao University of Technology

Inventor： Zuquan Jin ,  Xiaoying Zhang ,  Jihong Jiang ,  Zhaoyi Chen ,  Pengcheng Ren ,  Xiaoqing Wang

IPC: C03C17/42 ,  C23F13/12 ,  C23F13/20 ,  C25D9/08

CPC classification number: C03C17/42 ,  C23F13/12 ,  C23F13/20 ,  C25D9/08 ,  C23F2201/02 ,  C03C2217/217 ,  C03C2217/231 ,  C03C2218/111 ,  C03C2217/78 ,  C03C2217/254

Abstract: The present invention relates to a Z-type heterojunction photoanode film used for the photocathode protection of a reinforcing bar, the preparation method thereof and a method for the corrosion inhibition of mental materials from concrete structures in marine engineering by using the Z-type heterojunction photoanode film used for the photocathode protection of a reinforcing bar. The preparation method includes steps of preparing Fe2O3 on the conducting surface of a clean conductive substrate through the hydrothermal process, preparing Fe2O3-PANI composite photoanode film by depositing polyaniline on the surface of Fe2O3 through the electrochemical synthesis and preparing Ru-Fe2O3-PANI composite photoanode film on the surface of the Fe2O3-PANI composite photoanode film through the in situ chemical reduction method. The technical solution in the present invention can achieve highly effective photocathode protection of a reinforcing bar from concretes in marine engineering and improve the durability of concrete structures in marine engineering.