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

丰富、廉价和可再生的生物质衍生含氧物(如羧酸、醇、醛、醇)的催化蒸汽重整(SR)或来自废生物质气化的催化蒸汽重整可有助于减少对化石燃料的依赖。开发用于高效SR的多相催化剂，特别是在恶劣条件下，仍然是一个具有挑战性的目标。根据第一年的研究计划，我们部署了一系列生物炭基纳米催化剂用于甲醇水蒸气重整(SRM)的模型反应。作为概念验证，我们首次开始探索一种在恶劣条件下用于SRM的简单而有效的双功能系统。成功地筛选出了实现最佳SRM性能的组合。对富镍双金属体系进行了激励实验，并确定了有效成分。该催化剂具有很高的产氢速率。在此之后，我们明确地展示了选定的活性金属之间的协同作用以及生物炭载体的独特作用。更重要的是，我们预计这一明确的结果将在不同的蒸汽重整过程中具有普遍的有效性和兴趣。

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.