Development of non-noble-metal catalysts using biomass-derived carbon for biohydrogen production

利用生物质衍生的碳开发用于生物制氢的非贵金属催化剂

• 批准号: 22KF0034
• 负责人: 冨重 圭一
• 金额: $ 1.47万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2023
• 资助国家: 日本
• 起止时间: 2023-03-08 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22KF0034/
• 关键词: バイオマス; 水蒸気改質; バイオチャー; 触媒; タール

Catalytic steam reforming (SR) of abundant, inexpensive and renewable biomass-derived oxygenates (e.g., carboxylic acids, alcohols, aldehydes, alcohols) or from the gasification of waste biomass could help to reduce reliance on fossil fuels. The development of heterogeneous catalysts for efficient SR, especially under harsh conditions, still remains a challenging goal. According to the research plan of first year, we deployed a series of biochar-based nanocatalysts towards a model reaction of steam reforming of methanol (SRM). As a proof of concept, we set out to explore, for the first time, a simple yet effective bifunctional system for SRM under harsh conditions. The combinations to achieve best SRM performance were successfully screened. Encourage results were obtained with bimetallic systems with Ni-rich ones, and the effective compositions were determined. Very high hydrogen formation rate was obtained with the catalyst. After this, we unambiguously demonstrate the synergistic interactions of selected active metals as well as the unique role of the biochar support. More so, we anticipate this unequivocally result to be of general validity and interest in diverse steam reforming process.

丰富的、廉价的和可再生的生物质衍生的含氧化合物（例如，羧酸、醇类、醛类、醇类）或废物生物质气化产生的废物可有助于减少对化石燃料的依赖。用于高效SR的非均相催化剂的开发，特别是在苛刻条件下，仍然是一个具有挑战性的目标。根据第一年的研究计划，我们将一系列生物炭基纳米催化剂应用于甲醇水蒸气重整（SRM）的模型反应。作为一个概念的证明，我们开始探索，第一次，一个简单而有效的双功能系统SRM在恶劣的条件下。成功筛选出了实现最佳SRM性能的组合。用富镍体系作催化剂，获得了令人鼓舞的结果，并确定了有效成分。用该催化剂获得了非常高的氢气生成速率。在此之后，我们明确地证明了选定的活性金属的协同相互作用以及生物炭支持的独特作用。更重要的是，我们预计这一明确的结果是普遍的有效性和利益，在不同的蒸汽重整过程。