Simple pre-treatment by low-level oxygen plasma activates screen-printed carbon electrode: Potential for mass production

Yuan，Xiaofei1,2; Ma，Lulu3; Zhang，Juan1,2; Zheng，Yan1,2

2021-04-01

10.1016/j.apsusc.2020.148760

APPLIED SURFACE SCIENCE   影响因子和分区

0169-4332

1873-5584

Screen-printed carbon electrode (SPCE) contains excessive binder which covers the graphite electrode to affect SPCE performance. Oxygen plasma treatment has the potential to remove the binder effectively to enhance electrochemical activity. However, neither the mechanism of this enhancement nor the impact on reference and auxiliary electrodes is clear. To this end, SPCEs were subject to plasma treatment as a whole, followed by scanning electron microcopy and X-ray photoelectron spectroscopy assays to investigate topological and chemical variations on the SPCE surface. Electrochemical performance of plasma-treated SPCEs is dependent primarily on the plasma power, not the duration of treatment. Lower power (50 - 100 W) facilitated binder removal and exposure of both the edge and micro-edge planes of the graphite grains, resulting in significantly improved electrochemical sensitivity of SPCE. However, higher power (200 - 300 W) triggered a coating process due to re-deposition of etched binder to cover up both the basal and edge planes of the graphite grains, resulting in poorer performance of SPCE. Under optimized treatment conditions, SPCE displayed excellent intra-electrode repeatability, inter-electrode reproducibility, and improved electroactivity with no known negative impact from the oxidation of silver reference electrode, demonstrating that oxygen plasma pre-treatment holds potential for mass production of SPCE.

Screen-printed carbon electrode Oxygen plasma Electrochemical activity Mass production SEM XPS

SCI ; EI

英语

第一 ; 通讯

Shenzhen Science and Technology Innovation Committee (SSTIC)["KQJSCX20170728163124680","2017B030301012"]

Chemistry ; Materials Science ; Physics

Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter

WOS:000618281500005

ELSEVIER

20210509869246

Electrochemical electrodes ; Graphite ; Graphite electrodes ; Plasma applications ; X ray photoelectron spectroscopy

Chemical Products Generally:804 ; Plasma Physics:932.3

MATERIALS SCIENCE

Web of Science

1.State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China

Yuan，Xiaofei,Ma，Lulu,Zhang，Juan,et al. Simple pre-treatment by low-level oxygen plasma activates screen-printed carbon electrode: Potential for mass production[J]. APPLIED SURFACE SCIENCE,2021,544:14876.

Yuan，Xiaofei,Ma，Lulu,Zhang，Juan,&Zheng，Yan.(2021).Simple pre-treatment by low-level oxygen plasma activates screen-printed carbon electrode: Potential for mass production.APPLIED SURFACE SCIENCE,544,14876.

Yuan，Xiaofei,et al."Simple pre-treatment by low-level oxygen plasma activates screen-printed carbon electrode: Potential for mass production".APPLIED SURFACE SCIENCE 544(2021):14876.