Electrochemical detection of nitrate with carbon nanofibers and copper co-modified carbon fiber electrodes

NiTe2 Nanosheets for Broadband Photodetection

“…XPS measurements were carried out to investigate the valence state of the NiTe 2 . In the survey XPS spectrum (Figure S2a), typical constituents of Ni and Te besides contaminated C and O were detected. , The peak at 283.7 eV is ascribable to the C 1s binding energy, which is useful for energy calibration. The signals of Ni 2p 3/2 (∼854.9 eV) and 2p 1/2 (∼872.9 eV) are attributed to Ni 4+ (Figure S2b), while the peaks at ∼572.2 and 582.6 eV can be assigned to Te 2– (Figure S2c).…”

Lattice-disorder layer generation from liquid processing at room temperature with boosted nanointerface exposure toward water splitting

“…Endowing MCHs with high durability can be achieved by surface microenvironment engineering to provide more active sites, facilitated mass diffusion and multicomponent nano-interface building. [21][22][23][24][25] One method for constructing a supercial nanostructure is to deploy or grow another zero/one/two/three-dimensional structure on the surface of existing substances. 26,27 In situ surface transformation of cobalt carbonate hydroxides (CCH) into CCH@Co-Pi by Cui et al achieved high turnover frequency and long-term electrochemical stability.…”

“…Endowing MCHs with high durability can be achieved by surface microenvironment engineering to provide more active sites, facilitated mass diffusion and multicomponent nano-interface building. 21–25…”

A non-enzymatic electrochemical hydrogen peroxide sensor based on copper oxide nanostructures

“…Nanostructured materials are widely used as the working surface of the electrode [ 47 – 49 ]. The most common are transition metal nanoparticles [ 33 , 37 , 50 – 54 ], carbon nanotubes [ 8 ], metal oxides [ 55 – 64 ], graphene [ 32 – 33 ], and ordered mesoporous carbon [ 38 , 65 – 66 ]. Compared to bulk materials, nanostructures have higher catalytic activity and a significantly increased surface area-to-volume ratio, which makes it possible to significantly increase both sensitivity of the sensor and rate of detection of H 2 O 2 .…”