Water-coupled monovalent and divalent ion transport in polyviologen networks
Water-coupled monovalent and divalent ion transport in polyviologen networks
复制标题
多紫罗碱网络中水耦合的单价和二价离子传输
DOI:
10.1039/d3ta00289f
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发表时间:
2023
影响因子:
11.9
通讯作者:
Lutkenhaus, Jodie L.
中科院分区:
文献类型:
--
作者:
Easley, Alexandra D.;Mohanty, Khirabdhi;Lutkenhaus, Jodie L.
Redox-active polymers (RAPs) are of interest as environmentally friendly and earth-abundant energy storage materials. Polyviologens are promising RAPs, but they tend to dissolve during operation. Further, the two-electron redox reaction for polyviologens in various electrolytes is not always reversible, highlighting the need for a deeper understanding of the redox mechanism. Here, the energy storage mechanism for a cross-linked viologen (PTPM) is demonstrated using electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D), comparing NaCl and Na2SO4 aqueous electrolytes. E-QCMD reveals that the ion-electron transport mechanism is strongly dependent on the valency of the anion. More sudden and dramatic changes in the electrode's mass were observed for the divalent sulfate ion as compared to the smooth mass transitions associated with the monovalent chloride ion. Meanwhile, there was marked hysteresis in the mass transfer profile for NaCl, but little hysteresis for Na2SO4. Our results demonstrate that electrolyte design, and specifically ion valency, will have a large impact on the nature of mass transport in polymer-based electrodes. This work enables electrolyte selection for the next generation polymer batteries with improved performance.
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DOI:
10.1021/j100176a096
发表时间:
1991
期刊:
The Journal of Physical Chemistry
影响因子:
--
作者:
Andrew J. Kelly;N. Oyama
通讯作者:
N. Oyama
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
須貝友紀;唐澤昌之;児玉侑朔;有安真也;愛場雄一郎;荘司長三;K. Oyaizu
通讯作者:
K. Oyaizu
影响因子:
3.9
作者:
H. Long;D. Buttry
通讯作者:
H. Long;D. Buttry
影响因子:
4
作者:
SAIKA, T;IYODA, T;SHIMIDZU, T
通讯作者:
SHIMIDZU, T