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Interfacial Electrochemical Methods: Overview

Interfacial Electrochemical Methods: Overview

Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...

Electrolysis

Electrolysis

In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...

Chemiosmosis

Chemiosmosis

Oxidative phosphorylation is a highly efficient process that generates large amounts of adenosine triphosphate (ATP), the basic unit of energy that drives many cellular processes. Oxidative phosphorylation involves two processes— the electron transport chain and chemiosmosis.
Electron Transport Chain
The electron transport chain involves a series of protein complexes on the inner mitochondrial membrane that undergo a series of redox reactions. At the end of this chain, the electrons...

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Updated: Feb 26, 2026

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Solar-Driven Electrochemical Green Fuel Production from CO₂ and Water Using Ti₃C₂T_x MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

アルカリ性塩水における効率的な水素発生のための界面改質Mo₂C/MoO₂ヘテロ接合電極触媒

Jiarong Mu¹, Xiaotong Xu¹, Jianfang Jing¹

¹Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China. cesyg@imu.edu.cn.

Chemical communications (Cambridge, England)

|February 24, 2026

まとめ

研究者らは、炭化モリブデン/酸化モリブデンヘテロ接合を用いた水素発生反応（HER）の新触媒を開発した。この非貴金属触媒は、アルカリ性条件下で高い活性と安定性を示し、水電解技術を推進する。

キーワード:

炭化モリブデン酸化モリブデンヘテロ接合電極触媒水素発生反応アルカリ性塩水水電解

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Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

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Last Updated: Feb 26, 2026

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

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A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

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Published on: August 17, 2016

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

科学分野:

材料科学
電気化学
触媒作用

背景:

遷移金属炭化物は、アルカリ性媒体における遅い反応速度と限られた活性部位のために、水素発生反応（HER）において課題に直面しています。
効率的で非貴金属の電極触媒の開発は、工業用水電解による水素製造にとって非常に重要です。

研究の目的:

窒素ドープ炭素基板上に新規Mo₂C/MoO₂ヘテロ接合電極触媒を設計し、HER性能を向上させること。
界面電子移動が水素吸着と触媒活性の最適化に果たす役割を調査すること。

主な方法:

窒素ドープ炭素上に担持されたMo₂C/MoO₂ヘテロ接合電極触媒の合成。
アルカリ性およびアルカリ性塩水環境における水素発生反応のための触媒の電気化学的特性評価。
触媒活性と長期安定性の評価。

主要な成果:

Mo₂C/MoO₂ヘテロ接合は、電子構造と表面特性を効果的に調整しました。
効率的な界面電子移動により水素吸着エネルギーが最適化され、反応速度が向上しました。
この触媒は、市販のPt/Cに匹敵するHER活性（10 mA cm⁻²で13/23 mVの過電圧）を示し、最大300時間安定でした。

結論:

遷移金属炭化物の界面工学は、高性能電極触媒を設計するための有望な戦略です。
開発されたMo₂C/MoO₂ヘテロ接合触媒は、アルカリ性水電解のための貴金属に代わる実行可能な選択肢を提供します。
この研究は、水素製造技術の工業化に重要な意味をもたらします。