Summary:These images are those from SiO2 and juniper charcoal (JChc) powder samples observed with a SEM. The powders were obtained from commercial sources and these samples were prepared at the Bern University (Switzerland) as part of the D-A-CH/CoPhyLab project (https://www.cophylab.space/index.php?id=home)Details:¤ SEM images from the sample of pure SiO2: 001-St5607t0_00.tif 002-St5607t0_01.tif 003-St5607t0_03.tif:¤ SEM images from the sample of pure juniper charcoal powder: 004-St5607t6_00.tif 005-St5607t6_01.tif 006-St5607t6_04.tif 007-St5607t6_05.tif 008-St5607t6_07.tif:¤ SEM images from the sample of the intimate mixture with 90% SiO2 - 10% JChc by mass: 009-St5606t1_00.tif 010-St5607t1_01.tif:
¤ SEM images from the sample of the intimate mixture with 70% SiO2 - 30% JChc by mass: 011-St5607t2_00.tif 012-St5607t2_02.tif¤ Zoom-in on the 70% SiO2 - 30% JChc sample at lignin fragment peppered with smaller JChc and SiO2 particles and agglomerates: 013-St5607t2_03.tif:¤ Zoom-in on the 70% SiO2 - 30% JChc sample with apparent large fragment of lignin structure: 014-St5607t2_07.tif:¤ SEM images from the sample of the intimate mixture with 50% SiO2 - 50% JChc by mass: 015-St5607t3_00_St5606t3_00.tif 016-St5607t3_03.tif¤ SEM images from the sample of the intimate mixture with 30% SiO2 - 70% JChc by mass: 017-St5607t4_00.tif 018-St5607t4_01.tif, ¤ SEM images from the sample of the intimate mixture with 10% SiO2 - 90% JChc by mass: 019-St5607t5_00.tifAddendum:These SEM images are associated with the spectroscopic and photometric data available at the following addresses: https://doi.org/10.26302/SSHADE/EXPERIMENT_CF_20200723_000 https://doi.org/10.26302/SSHADE/EXPERIMENT_CF_20200813_000