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Nickel Bicarbonate Nanoparticles Loaded on Carbon Paper for Enzyme-Free Glucose Electrochemical Sensor
Author NameAffiliationE-mail
LI Ken-Ken College of Food and Wine, Ningxia University, Yinchuan 750021, China  
WANG Song-Lei College of Food and Wine, Ningxia University, Yinchuan 750021, China wangsonglei163@126.com 
LUO Rui-Ming College of Food and Wine, Ningxia University, Yinchuan 750021, China  
MA Liang College of Food and Wine, Ningxia University, Yinchuan 750021, China  
LIU Li College of Food and Wine, Ningxia University, Yinchuan 750021, China  
WEI Pei-Yuan College of Food and Wine, Ningxia University, Yinchuan 750021, China  
ZHANG Ye College of Food and Wine, Ningxia University, Yinchuan 750021, China  
Abstract: Nickel bicarbonate nanoparticles were grown in situ on carbon paper by one-step hydrothermal method. Powder X-ray diffraction and scanning electron microscopy were used to characterize the structure and morphology of the material. It was found that when pure phase Ni(HCO3)2 was loaded on carbon paper, it could provide more catalytically active sites which is beneficial to electron transport and catalytic reaction. Cyclic voltammetry and timecurrent response curves showed that the detection limit of the electrode was 0.98 μmol·L-1, the linear range was 2.95-1.02 mmol·L-1, and the sensitivity was 935 μA·L·mmol-1·cm-2. At the same time, it also exhibited excellent specificity and stability. In addition, the sensor can realize the rapid detection of glucose in dairy products. These results show that the synergistic effect of transition metal and conductive substrate can enhance the overall conductivity and catalytic performance of the composite material.
Keywords: enzyme-free sensor  carbon paper  nickel bicarbonate  cyclic voltammetry  glucose
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LI Ken-Ken,WANG Song-Lei,LUO Rui-Ming,MA Liang,LIU Li,WEI Pei-Yuan,ZHANG Ye.Nickel Bicarbonate Nanoparticles Loaded on Carbon Paper for Enzyme-Free Glucose Electrochemical Sensor[J].Chinese Journal of Inorganic Chemistry,2021,37(11):2002-2010.
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Chinese Journal of Inorganic Chemistry