Bipolar electrochemistry is a phenomenon in electrochemistry based on the polarization of conducting objects in electric fields. Indeed, this polarization generates a potential difference between the two extremities of the substrate that is equal to the electric field value multiplied by the size of the object.

2024年3月14日 · Here we study water dissociation and ion solvation kinetics in isolation at polymeric bipolar membrane and electrolyte–metal interfaces. We discover bias-dependent relationships between the...

2024年11月25日 · Incorporating the bipolar membrane into a flow-cell electrolyzer enables an ampere-level pure water electrolysis with a total voltage of 2.68 V at 1000 mA cm –2, increasing the energy efficiency...

2019年8月22日 · Bipolar electrochemistry is an old technology that has recently garnered renewed attention because of the interesting features of BPEs: (i) the wireless nature of a BPE is useful for sensors and material synthesis; (ii) the gradient potential distribution on BPEs is a powerful tool for the preparation of gradient surfaces and materials; and ...

2024年7月20日 · In bipolar membrane water electrolyzers, the protons and hydroxide ions generated from water dissociation at the bipolar junction migrate towards the negatively charged cathode and the positively charged anode, respectively [24].

2021年1月1日 · Bipolar membranes (BPMs) are a special class of ion-exchange membranes constituted by a cation- and an anion-exchange layer, allowing the generation of protons and hydroxide ions via a water dissociation mechanism.

2021年8月16日 · Polymer electrolyte membrane water electrolyzer (PEMWE) has attracted attention due to its ability to produce high-purity, compressed hydrogen at relatively mild operating temperatures (70°C-90°C). The highest cost contributor …

2013年9月27日 · A bipolar electrode (BPE) is an electrically conductive material that promotes electrochemical reactions at its extremities (poles) even in the absence of a direct ohmic contact. More specifically, when sufficient voltage is applied to an electrolyte solution in which a BPE is immersed, the potentia …

2023年12月18日 · Research now reveals that ionic species in mixed-ion electrolytes can block the heart of the membrane, the bipolar junction, hampering its performance. Many electrochemical devices rely on...

2020年7月16日 · Bipolar electrodes (BEs) offer numerous advantages of simplifying battery components, boosting specific power, increasing specific energy, and lowering manufacturing cost to target next-generation re...