The utilization of carbon dioxide (CO₂) as feedstock for chemical industries is gaining interest as a sustainable alternative to nonrenewable fossil resources. However, CO₂ reduction is necessary to increase its energy content. Hydrosilane is a potential reducing agent that exhibits excellent reactivity under ambient conditions. CO₂ hydrosilylation yields versatile products such as silylformate and methoxysilane, whereas formamides and N‐methylated products are obtained in the presence of amines. In these transformations, organocatalysts are considered as the more sustainable choice of catalyst. In particular, heterogeneous organocatalysts featuring precisely designed active sites offer higher efficiency due to their recyclability. Herein, an overview is presented of the current development of basic organocatalysts immobilized on various supports for application in the chemical reduction of CO₂ with hydrosilanes, and the potential active species parameters that might affect the catalytic activity are identified.

中文翻译：

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硅烷还原二氧化碳的非均相有机催化剂

作为不可替代的化石资源的可持续替代品，利用二氧化碳（CO ₂）作为化学工业的原料正引起人们的兴趣。然而，减少CO ₂是增加其能量含量所必需的。氢硅烷是一种潜在的还原剂，在环境条件下具有出色的反应活性。CO ₂氢化硅烷化可生成多用途的产品，例如甲硅烷基甲酸酯和甲氧基硅烷，而甲酰胺和N甲基化产物是在胺存在下获得的。在这些转化中，有机催化剂被认为是更可持续的催化剂选择。特别是，具有精确设计的活性位点的多相有机催化剂由于具有可回收性，因此具有更高的效率。在此，概述了固定在各种载体上的碱性有机催化剂的最新发展，以用于用氢化硅烷化学还原CO _2的应用，并确定了可能影响催化活性的潜在活性物种参数。