Traditional low-temperature H₂ production from methane needs high operating temperatures (above 500 °C), generates CO₂ emissions, and shows poor stability. This study focused on more low-temperature stable H₂ production from methane using a carbon-supported Ru catalyst (BS-Ru/C). This catalyst could stably generate H₂ without CO_x at 200 °C over 15 days. The temperature for clean H₂ production in conjunction with carbon fixation was found to be 200–250 °C, far lower than around 550 °C for the conventional low-temperature methane catalytic decomposition (MCD). The BS-Ru/C catalyst enabled the occurrence of steam reforming of methane (SRM) at 260 °C, which far exceeded other previous low-temperature catalysts reported at around 500 °C. Although CO₂ was produced during the SRM process from 260 to 500 °C, no CO was produced. This lower-temperature stable H₂ production technology using the BS-Ru/C catalyst with outstanding ability and stability will provide a helping hand to build a H₂ society in near future.

中文翻译：

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由甲烷制氢在200至500℃ -清洁制氢中在200〜250℃的碳固定结合†

由甲烷生产的传统低温H ₂需要较高的操作温度（高于500°C），会产生CO ₂排放，并且显示出较差的稳定性。这项研究的重点是使用碳载Ru催化剂（BS-Ru / C）从甲烷更低温稳定地生产H ₂。该催化剂可以在15天之内在200°C下稳定地生成H ₂而不产生CO _x。清洁H ₂的温度发现与碳固定结合的生产温度为200–250°C，远低于常规低温甲烷催化分解（MCD）的550°C左右。BS-Ru / C催化剂可在260°C下进行甲烷蒸汽重整（SRM），这远远超过了之前报道的约500°C的其他低温催化剂。尽管在SRM过程中从260到500°C产生了CO ₂，但没有产生CO。这种使用BS-Ru / C催化剂的低温稳定的H ₂生产技术，具有出色的性能和稳定性，将在不久的将来为建立H ₂社会提供帮助。