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Autor:
Fuxu Han, Feng Liu, Mingli Xu, Xinzhong Wang, Weiping Liu, Zhiwei Xiang, Wei Li, Xikun Yang, Tan Feng, Changwei Shao
Publikováno v:
Electrochemistry Communications, Vol 127, Iss, Pp 107039-(2021)
Minimizing the use of platinum (Pt) in catalysts for the oxygen reduction reaction (ORR) is critical for the commercial application of fuel cells. Here, we report a highly active carbon-supported catalyst with a low loading of Pt nanoparticles (Pt/C-
Publikováno v:
Electrochemistry Communications, Vol 127, Iss, Pp 107051-(2021)
The design and synthesis of highly efficient and durable non-noble metal electrocatalysts have become a top priority for the hydrogen evolution reaction (HER). Thus, this study describes a straightforward synthesis of nickel-doped cobalt phosphide na
Autor:
Iris Palm, Arvo Kikas, Aile Tamm, Vambola Kisand, Jaan Leis, Jekaterina Kozlova, Uno Mäeorg, Elo Kibena-Põldsepp, Kaido Tammeveski, Maike Käärik
Publikováno v:
Electrochemistry Communications, Vol 125, Iss, Pp 106976-(2021)
In this study, two compounds (melamine phosphate and hexachlorocyclotriphosphazene) were used as nitrogen and phosphorus precursors to dope silicon carbide-derived carbon (SiCDC) with nitrogen and phosphorus moieties. The successful heteroatom doping
Publikováno v:
Electrochemistry Communications, Vol 124, Iss, Pp 106947-(2021)
To better understand the electrochemical behavior of deoxyribonucleic acid (DNA) on carbon electrodes, the oxidation of synthetic oligonucleotides of 4 to 72 nucleotides long, their thermally stable duplexes, polymerase chain reaction amplicons of 14
Autor:
Youri Gendel, Gidon Amikam
Publikováno v:
Electrochemistry Communications, Vol 124, Iss, Pp 106945-(2021)
The polarization mechanism of capacitive-faradaic fuel cells is reported. The mixed potentials of faradaic (Pt and Ti/Pt-IrO2) and capacitive (activated carbon powder and fleece) electrodes were measured in aerated and hydrogenated NaCl solutions at
Publikováno v:
Electrochemistry Communications, Vol 102, Iss, Pp 72-77 (2019)
Cu is the only electrocatalyst that converts CO2 into appreciable quantities of hydrocarbons. However, it usually suffers from poor catalytic stability. In this work we propose a strategy of introducing crystal defects to change the reaction pathway
Publikováno v:
Electrochemistry Communications, Vol 101, Iss, Pp 82-87 (2019)
In this study, different carbon nanomaterials (carbon nanotubes, solid carbon spheres and graphene nanosheets) for immobilizing bacterial small laccase (SLAC) to enable direct bioelectrocatalysis of oxygen reduction were comparatively investigated. H
Autor:
Mikhail N. Efimov, A.A. Vasilev, Valentin E. Sosenkin, D. G. Muratov, O. N. Efimov, Yu. M. Volfkovich, G. P. Karpacheva, S. A. Baskakov
Publikováno v:
Electrochemistry Communications, Vol 96, Iss, Pp 98-102 (2018)
A new procedure employing infrared radiation to produce a nitrogen-containing highly porous carbon material based on polyacrylonitrile has been developed. The carbon material with a specific surface area of 1986 m2 g−1 demonstrated a specific capac
Autor:
Yani Ding, Kaikai Kou, Ljiljana Rajic, Akram N. Alshawabkeh, Xiaoxiao Meng, Jihui Gao, Yunfei Xue, Wei Zhou, Shuai Chen, Yan Wang, Yukun Qin
Publikováno v:
Electrochemistry Communications, Vol 96, Iss, Pp 37-41 (2018)
The performance of the Electro-Fenton (EF) process for contaminant degradation depends on the rate of H2O2 production at the cathode via 2-electron dissolved O2 reduction. However, the low solubility of O2 (≈1 × 10−3 mol dm−3) limits H2O2 prod
Autor:
Päärn Paiste, Väino Sammelselg, Kaido Tammeveski, Maike Käärik, Sander Ratso, Maido Merisalu, Jaan Leis, Roberta Sibul, Elo Kibena-Põldsepp, Mati Kook
Publikováno v:
Electrochemistry Communications, Vol 93, Iss, Pp 39-43 (2018)
Herein, for the first time, ball-milling of carbon materials (e.g. graphite, graphene oxide or graphene) in the presence of dicyandiamide (DCDA) followed by heat treatment at 800 °C was employed to synthesise N-doped carbons for the oxygen reduction