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Conversion for each zeolite at a fixed temperature (ZSM-5, 230 °C; zeolite Beta, 250 °C; and zeolite Y, 270 °C) (a) and maximum heptane isomer yield (b) with metal–acid intimacy ranging from closest to microscale. ZSM-5-based catalysts are indicated as blue triangles, the zeolite Beta-based catalyst is indicated as orange circles, and zeolite Y-based catalysts are indicated as black squares.
