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Volume 83
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Volume 82
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Volume 81
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Volume 80
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Volume 79
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Volume 78
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Volume 77
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Volume 76
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Volume 75
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Volume 74
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Volume 73
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Volume 72
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Volume 83
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Volumes 60-71 (2022)
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Volume 71
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Volume 70
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Volume 69
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Volume 68
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Volume 67
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Volume 66
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Volume 65
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Volume 64
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Volume 63
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Volume 62
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Volume 61
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Volume 60
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Volume 71
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• Resorcinol–formaldehyde (RF) gel was used a template to synthesize mesoporous tin dioxide.
• Surface area and mesoporosity of the products could be controlled by the synthesis parameters.
• Interactions between RF network and tin-containing sol were the key factor affecting mesoporosity.
Tin dioxide is a useful n-type oxide semiconductor used in a variety of applications owing to its superior optical, electrical, and multifunctional properties. Here, we used a network of resorcinol–formaldehyde (RF) gel to synthesize mesoporous tin dioxide via a sol–gel process. The effects of various synthesis parameters on the morphology and mesoporosity of the obtained product were investigated, including aging time of the RF gel, tin-to-formaldehyde molar ratio, resorcinol-to-carbonate molar ratio, and the aging time of the tin/RF mixed gel. Our experimental results showed that the interaction between the network of the RF gel and tin-containing sol is a key factor that affected the structural strength of the porous network and the porosity of the final product. Through control of the interactions in the tin/RF mixed gel we obtained porous tin dioxide materials that could be effectively used to form large-surface area films with desirable mesoporous properties.