Chang Zhao

Guangxi Medical University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Tao Luo

Guangxi Medical University

Junjie Liu

Central South University

Tuo Zhang

Xi'an Jiaotong University

Fengna Xi

Zhejiang Sci-Tech University

Jie Chen

Shanghai University

Xiangjiu Guan

Xi'an Jiaotong University

Huage Zhong

Guangxi Medical University

Jingkuo Qu

Xi'an Jiaotong University

Jiyang Liu

Zhejiang Sci-Tech University

Ningning Ma

Xi'an Jiaotong University

Cooperative Institutions

Xi'an Jiaotong University

Guangxi Medical University

Chinese Academy of Sciences

Zhejiang Sci-Tech University

Tumor Hospital of Guangxi Medical University

Zhejiang University

University of Electronic Science and Technology of China

Nanning Normal University

Tongji University

University of Science and Technology Beijing

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Influence of Al Doping Content on the Structure and Electrochemical Properties of LiNi_(1/3)Co_(2/3-x)Al_xO_2

Acta Physico-Chimica Sinica (2010)

Chang Zhao

The layerd cathode materials LiNi1/3Co2/3-xAlxO2 (x=1/12,1/6,1/3,1/2,7/12) for lithium ion battery has been successfully synthesized using eutectic lithium salts of 0.38LiOH·H2O-0.62LiNO3 mixed with Ni1/3Co1/3Al1/3(OH)2 as a precursor.The materials were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM),and electrochemical performance tests.Results show that the LiNi1/3Co2/3-xAlxO2 can be maintained as a well-layered αNaFeO2 structure in the range of 1/12≤x≤1/3.At x1/3,a miscellaneous phase is present.The LiNi1/3Co1/3Al1/3O2 products have the highest crystallinity,the least cation mixing effect and the most uniform particle size with a tapdensity of 2.88 g·cm-3.Additionally,the initial discharge capacity of the product was 151.5 mAh·g-1 and after 50 cycles,91.4% of the initial discharge capacity was maintained.The reversible capacities of the products are 133.7 and 120.9 mAh·g-1 at 1C and 2C discharge rates,respectively.

Lithium battery

Source

Cite

Citations (0)

Electrochemical immunosensor with surface-confined probe for sensitive and reagentless detection of breast cancer biomarker

RSC Advances (2020)

Huage Zhong Chang Zhao Jie Chen Miao Chen Tao Luo

Sensitive and reliable detection of tumour markers is of great significance for early diagnosis and monitoring recurrence of cancers. Herein, a simple electrochemical immunosensor is developed with an integrated electrochemical probe on the sensing surface, which is able to sensitively and reagentlessly detect the breast cancer biomarker, human epidermal growth factor receptor 2 (ErbB2). Ferrocene (Fc) is chosen as the signal indicator and covalently grafted on cationic polyelectrolyte poly(ethylene imine) (Fc-PEI). The redox Fc-PEI could alternately assemble with carboxyl functionalized single-walled carbon nanotubes (SWNTs) on an indium tin oxide electrode through layer-by-layerelectrostatic assembly. After Anti-ErbB2 antibody is covalently immobilized onto the outermost SWNTs layer followed by blocking the electrode with bovine serum albumin, a sensing interface with recognitive probe and electrochemical probe is obtained. In the presence of ErbB2, the formed antigen-antibody complex makes a barrier to inhibit electro-transfer of inner Fc, leading to a decreased electrochemical response. Owing to the SWNTs-facilitated charge transfer and abundant surface-bound probes, the developed sensor demonstrates outstanding performance for reagentless detection of ErbB2 in terms of wide detection range (1.0-200.0 ng mL-1) and low detection limit (0.22 ng mL-1). The developed immunosensor also exhibits good selectivity, reproducibility and stability. Real analysis of ErbB2 in human serum samples is also demonstrated.

Nanoshell

Differential pulse voltammetry

10.1039/d0ra01192d

Cite

Citations (15)

Sensitive Detection of Sulfide Ion Based on Fluorescent Ionic Liquid–Graphene Quantum Dots Nanocomposite

Frontiers in Chemistry (2021)

Guanhua Qiu Yaoqi Han Xiaoqi Zhu Jiawei Gong Tao Luo

Sulfide ions (S

Carbon Quantum Dots

Graphene quantum dot

10.3389/fchem.2021.658045

Cite

Citations (23)

The effect of Ce on the properties of nickel hydroxide electrode

Journal of Functional Biomaterials (2002)

Chang Zhao

Effect of cerium element which was mixed with Ni(OH) 2 by incorporation and co precipitated as additive on properties of nickel electrode were studied. The experimental results were analyzed by means of cyclic voltammetry. The results show that nickel electrodes with incorporated directly display excellent charge discharge behaviour. by contrast nickel electrodes co precipitated with cerium can not effectively improved the properties. The results of cyclic voltammetry shows that the reversibility of nickel electrode with cerium incorporated is improved as well as the transportation ability of H +, thus the properties is better.

Source

Cite

Citations (0)

Preparation of molecular imprinted film based on chitosan/nafion/nano-silver/poly quercetin for clenbuterol sensing

Food Chemistry (2011)

Chang Zhao Guan‐Ping Jin Lili Chen Yi Li Bo Yu

Nafion

Molecularly imprinted polymer

10.1016/j.foodchem.2011.04.072

Cite

Citations (37)

Nonenzymatic Glucose Electrochemical Oxidation Based on Pt Decorated MWCNTs-PVA Hybrid Electrode

Advanced materials research (2015)

Shu Min Liu Yu Zheng Li Ying Cui Chang Zhao Xiao Yu

The multi-walled carbon nanotubes (MWCNTs) /polyvinyl alcohol (PVA) coating may have excellent biocompatibility and unique electrical properties. The effect of the dispersing agent on the electrochemical behaviors is very relevant,which has a great influence on the ionic conductivity of the composite material.We prepared four membrane electrodes of MWCNTs by using two dispersing processes of electrophoretic deposition (EPD). The scanning electron microscope (SEM) graphs of the MWCNTs/PVA composite were recorded In the NaOH solution, glucose is electrochemically oxidized on the acidified-MWCNTs/ PVA composite coating with high current density. The MWCNTs of the covalent dispersing methods treatment have a positive influence for the oxidation of glucose. The PVA can strengthen the dispersion effect of CTAB-MWCNTs for the EDP. The cooperative electrocatalytic property of MWCNTs-Pt toward glucose is not impaired by the association with the PVA binder.

Electrophoretic Deposition

Polyvinyl Alcohol

Biocompatibility

10.4028/www.scientific.net/amr.1095.299

Cite

Citations (3)

Functional nanostructure-loaded three-dimensional graphene foam as a non-enzymatic electrochemical sensor for reagentless glucose detection

RSC Advances (2020)

Qianshi Liu Huage Zhong Miao Chen Chang Zhao Yan Liu

Non-enzymatic and reagentless electrochemical sensors for convenient and sensitive detection of glucose are highly desirable for prevention, diagnosis and treatment of diabetes owing to their unique merits of simplicity and easy operation. Facile fabrication of a three-dimensional (3D) sensing interface with non-enzymatic recognition groups and an immobilized electrochemical probe remains challenge. Herein, a novel non-enzymatic electrochemical sensor was developed for the sensitive and reagentless detection of glucose by loading functional nanostructure on 3D graphene. Monolithic and macroporous 3D graphene (3DG) foam grown by chemical vapor deposition (CVD) served as the electrode scaffold. Prussian blue (PB) and gold nanoparticles (AuNPs) were first co-electrodeposited on 3DG (3DG/PB-AuNPs) as immobilized signal indicator and electron conductor. After a polydopamine (PDA) layer was introduced on 3DG/PB-AuNPs via facile self-polymerization of dopamine to stabilize internal PB probes and offer chemical reducibility, the second layer of AuNPs was in situ formed to assemble the recognition ligand, mercaptobenzoboric acid (MPBA). Owing to the high stability of PB and good affinity between MPBA and glucose, the non-enzymatic sensor was able to be used in reagentless detection of glucose with high selectivity, wide linear range (5 μM-65 μM) and low detection limit (1.5 μM). Furthermore, the sensor was used for the detection of glucose level in human serum samples.

Prussian blue

Electrochemical gas sensor

10.1039/d0ra05553k

Cite

Citations (54)

Effect of Hydrazine on the Performance of LiNi_(0.5)Mn_(1.5)O_4 Cathode Materials

Acta Physico-Chimica Sinica (2010)

Chang Zhao

Reduction pretreatment of the precursor of LiNi0.5Mn1.5O4 was carried out by adding hydrazine to a solution of NaOH during precursor synthesis.Accordingly,the effect of hydrazine on the performance of LiNi0.5Mn1.5O4 was studied by comparing the electrochemical properties of this sample with those of pristine samples(LiNi0.5Mn1.5O4 without hydrazine pretreatment).We synthesized LiNi0.5Mn1.5O4 by co-precipitation using a two-step drying method with NiSO4 and MnSO4 as raw materials.The results of electrochemical experiments show that the LiNi0.5Mn1.5O4 from the hydrazine pretreated precursor has a much higher special capacity than the pristine sample at the same charge/ discharge current density.Moreover,the former shows much better electrochemical performance at a high discharge current density.Results of powder X-ray diffraction(XRD) reveal that the LiNi0.5Mn1.5O4 from the hydrazine pretreated precursor shows a pure spinel phase(no impurity phase detected) while the pristine sample contains a minor impurity phase.Results of scanning electron microscopy(SEM) show that the crystal impurities have a layered structure and are mixed with octahedral crystals of LiNi0.5Mn1.5O4.We show that the impurity in the precursor is insoluble Na0.55Mn2O4.1.5H2O,which derives from the oxidation of Mn(OH)2 by O2 and a final transformation into Na0.7MnO2.05.

Hydrazine (antidepressant)

Crystal (programming language)

Source

Cite

Citations (0)

Studies on the Electrochemical Properties of Cobalt Hydroxide

Huaxue Shijie (Chemical World) (2003)

Chang Zhao

Crystalline Co(OH)2 was synthesized and its electrochemical characters were studied. The chargedischarge experiments show that cobalt hydroxide electrode has a comparatively stable capacity of discharge, which is about 98.4 mAh/g. The experiments of cyclic voltammety show that the cobalt hydroxide electrode is reversible. The result of Xray diffraction shows that the electrode reaction takes place between CoOOH and Co(OH)2. The function of cobalt hydroxide, as an electrode additive, is known more clearly through the studies of its electrochemical properties.

Cobalt hydroxide

Source

Cite

Citations (0)

Studies of electrochemical characteristics of nickel hydroxide with surface deposited cobalt

Journal of Functional Biomaterials (2001)

Chang Zhao

Cobalt is an effective additive that is widely used in nickel electrode. A porous cobalt film can be fixed onto the surface of spherical nickel hydroxide particles by the method of electroless plating, the nickel electrode mad from modified particles exhibits better characteristics in terms of the active material utilization, the average discharge voltage and reversibility of Ni(OH) 2/NiOOH redox reaction. Studies were focused upon the structural changes during charge/discharge process of the two samples by XRD method. Experimental results show that spherical Ni(OH) 2 coated by cobalt can prevent the formation of γ NiOOH, and it is beneficial to the cyclic life of Ni(OH) 2 electrodes.

Plating (geology)

Cobalt hydroxide

Electroless nickel plating

Source

Cite

Citations (3)