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Dehydrogenation of glycerol for CO2 reduction can simultaneously produce lactic acid (LA) and formic acid (FA) products with high added value, greatly improving the atomic economy and the actual benefits. We report that Ru‐MACHO (regR) as a catalyst can satisfy the requirements of parallel reaction at the same time. The designed experiment confirms that under the conditions of 200 °C and 48 h, 3 mg Ru‐MACHO (regR) catalyst can obtain FA and LA yields of 40 % and 45 %, respectively. The possible reaction path of glycerol dehydrogenation for CO2 reduction is confirmed by the isotopic tracer technique and nuclear magnetic resonance analysis.

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Precious palm leaf manuscripts are kept in public libraries, archives, museums, and temples in China. Recently, private collectors have gained interest in collecting such manuscripts as well. Different storage environments and preservation measures may have an impact on the overall condition and deterioration of manuscripts depending on the respective collecting entirety. Therefore, it is necessary to investigate the storage situation of palm leaf manuscripts in different storage conditions, identify their state of deterioration and further analyze the underlying reasons. This research focuses on the palm leaf manuscripts stored at the Cultural Palace Library of Nationalities and in the Fandian Palace. Deterioration phenomena, such as acidification, staining, mold, tearing and blurred ink, have occurred. The main problems could be identified as inadequate storage materials and acidification of the wrapping materials. Unfavorable storage conditions also affect aging and deterioration. By comparing palm leaf manuscripts of the two collections, we found that the manuscripts of The Cultural Palace Library of Nationalities are well preserved as a whole, with few signs of deterioration and slight damage, while the manuscripts of the Fandian Palace show more serious problems. Therefore, it is necessary to improve the storage conditions at the latter location and take some measures to prevent the palm leaf manuscripts from continuing to deteriorate.