Electrocatalytic Hydrogen Evolution Reaction on Reduced Graphene Oxide Electrode Decorated with Cobaltphthalocyanine Original Research Article Applied Catalysis B: Environmental, Available online 3 February 2016, Pages Duygu Akyüz, Bahadır Keskin, Utkan Şahintürk, Atıf Koca
Graphical abstractElectrocatalytic hydrogen evolution reaction (HER) on azido graphene oxide (GO-N3) and reduced azido graphene oxide (RGO-N3) electrodes decorated with the cobaltphthalocyanine complex bearing terminal alkyne moieties (TA-CoPc) was investigated. GCE/RGO-N3/TA-CoPc and GCE/GO-N3/TA-CoPc electrodes were constructed with the electrochemical reduction of GO-N3; TA-CoPc decoration of GCE/RGO-N3 and GCE/GO-N3 electrodes with click electrochemistry (CEC). GCE/RGO-N3/TA-CoPc electrode illustrates well electrocatalytic activity by decreasing the over-potential of the bare electrode about 340mV and increasing the current density of the electrode about 15 fold at low pHs with absolutely high stability and reproducibility.

| Ultraviolet Raman spectra of double-resonant modes of graphene Original Research Article Carbon, Available online 3 February 2016, Pages Wei Zhou, Junwen Zeng, Xuefei Li, Jun Xu, Yi Shi, Wei Ren, Feng Miao, Baigeng Wang, Dingyu Xing | Controlled synthesis of reduced graphene oxide supported silver nanoparticles for selective and sensitive electrochemical detection of 4-nitrophenol Original Research Article Electrochimica Acta, Available online 3 February 2016, Pages Nurul Izrini Ikhsan, Perumal Rameshkumar, Nay Ming Huang
Graphical abstractControlled synthesis of reduced graphene oxide-silver (rGO-Ag) nanocomposite using modified Tollens' test and its application towards the electrochemical detection of 4-nitrophenol (4-NP) is reported. The rGO-Ag (15h) nanocomposite modified GC electrode showed a good sensitivity in square wave voltammetry with a detection limit of 1.2nM towards the electrocatalytic reduction of 4-NP. The nanocomposite was stable and selective for 4-NP detection in the presence of interferent molecules. The present nanocomposite assay was successfully used for the determination of 4-NP in real water samples.

| |
No comments:
Post a Comment