Jx Nippon Oil Energy Corporation

Eneos Corporation

Yokohama National University

Jxtg Nippon Oil & Energy Corporation

De Nora Permelec Ltd

Kojiro Nakagawa

Kota Miyoshi

Yasushi Sato

Yoshihiro Kobori

Shinji Oshima

Yoshinori Nishiki

Akiyoshi Manabe

Shigenori Mitsushima

Akihiro Kato

Yasutomo Takakuwa

An electrochemical reduction device includes an electrode unit, a power control unit, an organic material storage tank, a concentration measurement unit, a water storage tank, a gas-water separation unit, and a control unit. The electrode unit includes an electrolyte membrane, a reduction electrode, and an oxygen evolving electrode. The control unit controls the power control unit so as to satisfy a relation of V&#x2212;V&#x2264;V&#x2264;Vwhen the potential at a reversible hydrogen electrode, the standard redox potential of the aromatic compound, and the potential of the reduction electrode are expressed as V, V, and V, respectively. Vis adjusted according to the concentration of the aromatic compound measured by the concentration measurement unit.

Electrochemical reduction device and method for manufacturing hydride of aromatic compound

A device for producing an organic hydrideof an aspect of the present invention has an electrochemical cell provided with an anodeon a surface of an electrolyte membraneand a cathode including a cathode catalyst layerand a cathode diffusion layeron another surface of the electrolyte membrane. A gap is provided between the anodeand the electrolyte membrane. The anodehas a network structure with an aperture ratio of 30 to 70%, and has an electrical supply supporting material formed of an electronic conductor and the electrode catalyst held by the electrical supply supporting material.

Device for manufacturing organic hydride

An electrochemical reduction device includes an electrode unit, a power control unit, a concentration measurement unit, and a control unit. The electrode unit includes an electrolyte membrane, a reduction electrode, and an oxygen evolving electrode. The control unit controls the power control unit such that a current value I flowing through the reduction electrode and the oxygen evolving electrode satisfies Equation, I&#x2264;Imax (C). In Equation, a maximum current value Imax (C) is defined according to a concentration C of an aromatic compound obtained by the concentration measurement unit such that Faraday efficiency is to be a predetermined value or more.

An electrochemical reduction device comprises an electrode unit including an electrolyte membrane, a reduction electrode, and an oxygen evolving electrode; a power control unit that applies a voltage Va between the reduction electrode and the oxygen evolving electrode; a hydrogen gas generation rate measurement unit that measures a hydrogen gas generation rate F1; and a control unit that controls the power control unit so as to gradually increase the Va within a range that satisfies a relationship of F1&#x2266;F0 and V&#x3e;V&#x2212;acceptable potential difference (APD), when the potential at a reversible hydrogen electrode is V, the potential of the reduction electrode is V, the acceptable upper limit of the hydrogen gas generation rate is F0, and the APD is a potential difference that defines an upper limit of a potential difference between Vand V.

Electrochemical reduction device and method for manufacturing hydride of aromatic hydrocarbon compound or nitrogen-containing heterocyclic aromatic compound

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Tokyo, Japan

Kojiro Nakagawa