title: Convenient and controllable preparation of a novel uniformly nitrogen doped porous graphene/Pt nanoflower material and its highly-efficient electrochemical biosensing.
abstract: By employing dopamine as a nitrogen source and reducing agent, the block copolymer P123 as a pore forming agent, and graphene oxide as a carbon precursor, we present, for the first time, a convenient and controllable approach to the preparation of a novel uniformly nitrogen doped porous graphene (N-PGR) material. Using the prepared N-PGR as the supporting material, a novel nitrogen doped porous graphene/Pt nanoflower material (Pt/N-PGR) was obtained by a green and simple method. The characterization results of scanning electron microscopy (SEM), element mapping, transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) demonstrate that Pt nanoflowers are uniformly dispersed on nitrogen doped porous graphene. Electrochemical measurements show that Pt/N-PGR-900/GCE exhibits improved electrocatalytic activity towards H2O2 reduction and glucose oxidation. Linear responses are found for H2O2 and glucose in the range of 0.5-40 326 μM and 0.5-133.5 mM with the detection limit (S/N = 3) of 0.2 μM and 0.05 mM, respectively. In addition, Pt/N-PGR-900/GCE exhibits high sensitivity and good anti-interference ability. The superior catalytic activity and selectivity make Pt/N-PGR a promising nanomaterial for application in electrochemical biosensing studies.
authors.affiliation: Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, Hebei Province, P. R. China. zwhsjzl@163.com.
authors.forename: Shuang
authors.initials: S
authors.lastname: Ren
authors.affiliation: Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, Hebei Province, P. R. China. zwhsjzl@163.com.
authors.forename: Huan
authors.initials: H
authors.lastname: Wang
authors.affiliation: Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, Hebei Province, P. R. China. zwhsjzl@163.com.
authors.forename: Yufan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, Hebei Province, P. R. China. zwhsjzl@163.com.
authors.forename: Yuena
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, Hebei Province, P. R. China. zwhsjzl@163.com.
authors.forename: Lanfen
authors.initials: L
authors.lastname: Li
authors.affiliation: Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, Hebei Province, P. R. China. zwhsjzl@163.com.
authors.forename: Hongyi
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, Hebei Province, P. R. China. zwhsjzl@163.com.
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Shi
authors.affiliation: Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, Hebei Province, P. R. China. zwhsjzl@163.com.
authors.forename: Mingjie
authors.initials: M
authors.lastname: Li
authors.affiliation: Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, Hebei Province, P. R. China. zwhsjzl@163.com.
authors.forename: Meng
authors.initials: M
authors.lastname: Li
mesh_terms: D015374:Biosensing Techniques / Q000379:methods* / Q000592:standards; D055664:Electrochemical Techniques / Q000379:methods* / Q000592:standards; D006108:Graphite / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*; D016062:Porosity
chemical_list: D010984:Platinum; D006108:Graphite; D009584:Nitrogen