Highly portable electrochemical oxygen removal device for microenvironmental low-oxygen control  

作　　者：Xin Wang Xingen Lin Wanyu Shen Yimin Li Yi Tan Zihan Wang Peng Jiang Song Gong Kong Chen Yu Zhang Yuen Wu 

机构地区：[1]Department of Endocrinology,Institute of Endocrine and Metabolic Diseases,The First Affiliated Hospital of University of Science and Technology of China(USTC),Division of Life Sciences and Medicine,University of Science and Technology of China,Hefei 230001,China [2]Deep Space Exploration Laboratory,University of Science and Technology of China,Hefei 230026,China [3]Division of Endocrinology,Tongji Hospital,Huazhong University of Science and Technology,Wuhan 430030,China

出　　处：《Nano Research》2025年第2期263-272,共10页纳米研究(英文版)

基　　金：This work was supported by China Ministry of Science and Technology(No.2021YFA1600800);the National Natural Science Foundation of China(Nos.92261105,22221003,and 22401194);the Joint Funds of the National Natural Science Foundation of China(No.U23A2081);China Postdoctoral Science Foundation funded project(No.2022M712178);the Anhui Provincial Natural Science Foundation(Nos.2108085UD06 and 2208085UD04);the Anhui Provincial Key Research and Development Project(Nos.2023z04020010 and 2022a05020053);the Fundamental Research Funds for the Centre Universities(No.WK9990000155);the Joint Funds from Hefei National Synchrotron Radiation Laboratory(Nos.KY2060000180 and KY2060000195);the USTC Research Funds of the Double First-Class Initiative(No.YD2060006005).

摘　　要：Low-oxygen(O_(2))environments are essential in various research and application fields,yet traditional methods like nitrogen flushing or chemical O_(2) absorbers face challenges in high equipment cost and low controllability.This study introduces a novel electrochemical oxygen removal(EOR)controller,offering a lightweight,low-cost,and precise low-O_(2) control solution.The self-powered EOR controller uses a sacrificial anode to drive the cathodic oxygen reduction reaction(ORR),efficiently consuming environmental O_(2) to reduce its level,thus eliminating the requirements of external gas or power sources.By integrating a single-atom ORR catalyst and flexible design,the device achieves a substantial reduction in weight and cost.The incorporation of electronic components for the EOR controller,including a switch for reaching targeted O_(2) concentration and a fixed resistor for O_(2) removal rate regulation,enables multi-dimensional O_(2) removal control.The system also realizes the O_(2) concentration estimation in real-time with±1%accuracy(within the 21%-1% range)by calculating electron transfers.The EOR controller's effectiveness is validated in plant hypoxia stress experiments,demonstrating precise O_(2) level adjustments and its potential across various applications requiring controlled hypoxic conditions.

关 键 词：low-oxygen condition oxygen reduction reaction(ORR) oxygen level control for microenvironment electrochemical oxygen removal 

分 类 号：O646[理学—物理化学]