Science. 1994 Sep 2;265(5177):1418-20. doi: 10.1126/science.265.5177.1418.
Platinum black efficiently catalyzes the oxidation of methane by iron(III) to generate carbon dioxide and eight equivalents of iron(II) in solutions of sulfuric acid in water. The rate of oxidation increases over 4 hours to reach approximately 4.83 x 10(-2) moles of iron(II) per gram atom of surface platinum per second. A redox fuel cell was assembled that used this reaction in a liquid reformer to generate soluble reducing equivalents of iron(II) from methane, which was electrochemically oxidized to iron(III) in the cell. A vanadium(V)-(IV)-nitric acid-O(2) redox system catalyzed the electrochemical reduction of O(2). The open-circuit voltage of the cell was 0.48 volt, and the maximum power output of the cell was 8.1 milliwatts per cubic centimeter of graphite felt electrode.
铂黑能高效催化三价铁氧化甲烷生成二氧化碳和八当量的二价铁，反应在硫酸水溶液中进行。氧化速率在 4 小时内增加，达到约 4.83×10(-2)摩尔铁(II)每克原子表面铂每秒。组装了一个氧化还原燃料电池，该电池在液体重整器中利用这一反应，从甲烷中生成可溶性的二价铁还原当量，这些还原当量在电池中被电化学氧化为三价铁。钒(V)-(IV)-硝酸-O(2)氧化还原体系催化氧气的电化学还原。电池的开路电压为 0.48 伏特，电池的最大输出功率为 8.1 毫瓦每立方厘米石墨毡电极。
