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provide the readable notes of chapter surface chemistry class 12th
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12 class
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Hydrogen spillover is well-documented in hydrogenation catalysis, but its existence through metalorganic frameworks (MOFs) remains controversial. Here, the authors provide evidence of the occurrence of hydrogen spillover in microporous MOFs at elevated temperatures, and measure quantitatively the penetration depths of atomic hydrogen.
Guowu Zhan & Hua Chun Zeng
Nature Communications | Article | OPEN
Control of coordinatively unsaturated Zr sites in ZrO2for efficient C–H bond activation
Identifying active sites and designing rationally heterogeneous catalysts are not inherently straightforward due to their complexity. Here, the authors reveal the nature of active sites for efficient C–H bond activation in C1-C4 alkanes over bare ZrO2 and provide fundamentals for controlling their concentration.
Yaoyuan Zhang, Yun Zhao[…] & Evgenii V. Kondratenko
Nature Communications | Article | OPEN
Confined small-sized cobalt catalysts stimulate carbon-chain growth reversely by modifying ASF law of Fischer–Tropsch synthesis
Fischer–Tropsch synthesis (FTS) is theoretically limited by Anderson–Schulz–Flory (ASF) law. Here, the authors successfully tune the selectivity of products from diesel-range hydrocarbons to gasoline-range hydrocarbons in FTS by controlling the crystallite sizes of confined cobalt, and modify the ASF law.
Qingpeng Cheng, Ye Tian[…] & Xingang Li
Nature Communications | Article | OPEN
Interfacing with silica boosts the catalysis of copper
Metal-support interaction plays an important role in heterogeneous catalysis, but silica has been rarely reported as an effective support to create active metal-support interfaces for promoting catalytic reactions. Here, the authors discover that Cu/SiO2interface creates an exceptional effect to promote catalytic hydrogenation of esters.
Chaofa Xu, Guangxu Chen[…] & Nanfeng Zheng
Nature Communications | Article | OPEN
Selective conversion of CO2and H2 into aromatics
Selective conversion of CO2 and H2 into aromatics remains challenging due to the high unsaturation degree and complex structure of aromatics. Here the authors report a composite catalyst of ZnAlOx and H-ZSM-5 which promotes the formation of aromatics with high selectivity while inhibiting CO and CH4 formation in CO2hydrogenation reactions.
Youming Ni, Zhiyang Chen & Zhongmin Liu
Guowu Zhan & Hua Chun Zeng
Nature Communications | Article | OPEN
Control of coordinatively unsaturated Zr sites in ZrO2for efficient C–H bond activation
Identifying active sites and designing rationally heterogeneous catalysts are not inherently straightforward due to their complexity. Here, the authors reveal the nature of active sites for efficient C–H bond activation in C1-C4 alkanes over bare ZrO2 and provide fundamentals for controlling their concentration.
Yaoyuan Zhang, Yun Zhao[…] & Evgenii V. Kondratenko
Nature Communications | Article | OPEN
Confined small-sized cobalt catalysts stimulate carbon-chain growth reversely by modifying ASF law of Fischer–Tropsch synthesis
Fischer–Tropsch synthesis (FTS) is theoretically limited by Anderson–Schulz–Flory (ASF) law. Here, the authors successfully tune the selectivity of products from diesel-range hydrocarbons to gasoline-range hydrocarbons in FTS by controlling the crystallite sizes of confined cobalt, and modify the ASF law.
Qingpeng Cheng, Ye Tian[…] & Xingang Li
Nature Communications | Article | OPEN
Interfacing with silica boosts the catalysis of copper
Metal-support interaction plays an important role in heterogeneous catalysis, but silica has been rarely reported as an effective support to create active metal-support interfaces for promoting catalytic reactions. Here, the authors discover that Cu/SiO2interface creates an exceptional effect to promote catalytic hydrogenation of esters.
Chaofa Xu, Guangxu Chen[…] & Nanfeng Zheng
Nature Communications | Article | OPEN
Selective conversion of CO2and H2 into aromatics
Selective conversion of CO2 and H2 into aromatics remains challenging due to the high unsaturation degree and complex structure of aromatics. Here the authors report a composite catalyst of ZnAlOx and H-ZSM-5 which promotes the formation of aromatics with high selectivity while inhibiting CO and CH4 formation in CO2hydrogenation reactions.
Youming Ni, Zhiyang Chen & Zhongmin Liu
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