The cross-linked PIL with “network structure” can fabricate nitrogen-doped porous carbons with hi... more The cross-linked PIL with “network structure” can fabricate nitrogen-doped porous carbons with higher specific surface area.
Langmuir : the ACS journal of surfaces and colloids, Jan 30, 2018
The reaction between titanium alkoxides, [Ti(OR)], and surface silanol groups is widely used to g... more The reaction between titanium alkoxides, [Ti(OR)], and surface silanol groups is widely used to generate grafted oxo-hydroxo titanium species, whose size is difficult to control. Partial capping of the surface silanols in the presence of the masking pattern of self-repelling tetramethylammonium ions allows us to isolate surface silanol islets, on which isolated titanium ions and dimeric oxo titanium species can be generated up to 2 Ti/Si mol %. Above this loading, and up to ∼8 Ti/Si mol %, higher oligomers (trimers, hexamers, octamers, and so on) are formed, reaching the size obtained at much lower loadings (<1 Ti/Si mol %) on a nonmodified silica surface. The downsizing effect produced on our organically modified surface is monitored from the blue-shift of the charge-transfer band of the Ti(IV) ions, measured by reflectance UV-visible spectroscopy. It is also mirrored by a higher catalytic activity in cyclohexene epoxidation, revealing that it is not only the isolated Ti species...
Coating fibrous γ-alumina stabilized the SBA-15 structure against collapse in steam, allowing for... more Coating fibrous γ-alumina stabilized the SBA-15 structure against collapse in steam, allowing for the facile synthesis of mesoporous aluminosilicate which showed excellent catalytic performance in the cracking of 1,3,5-triisopropyl benzene.
To produce aromatic hydrocarbons from biomass, a novel route is reported for one-pot selective hy... more To produce aromatic hydrocarbons from biomass, a novel route is reported for one-pot selective hydrodeoxygenation of a lignin derived aryl ether mixture to C6–C9 aromatic hydrocarbons over Ru/sulfate zirconia in the aqueous phase.
In this perspective article, mainly based on the model of structural water molecules (SWs) as bri... more In this perspective article, mainly based on the model of structural water molecules (SWs) as bright color emitters, we briefly summarize the development and theoretical elaboration of P-band intermediate state (PBIS) theory and its application in catalysis, especially in several representative redox reactions. In particular, with a simple equation (2∫ψ2σ1’ + ∫ψ2σ2 + ∫ψ2π =1), we define how the interface sate correlate with the three basic parameters of heterogenous catalysis (conversion, selectivity and stability), and what is the dynamic nature of catalytic active sites. Overall, the proposal of SWs dominated PBIS theory provides new insights into the physical origin of photoluminescence emission of low-dimensional quantum nanodots and the physical nature of nanoconfinement and nanoconfined catalysis.
An earth-abundant Co-based catalyst, Co@C–N(800), could efficiently catalyze the reductive aminat... more An earth-abundant Co-based catalyst, Co@C–N(800), could efficiently catalyze the reductive amination of carbonyl compounds into primary amines at 35 °C owing to the synergistic effect of Co nanoparticles and atomically dispersed Co–Nx sites.
Trimetallic Cu10La1Cs1 catalysts prepared via a one-step co-electrodeposition strategy can act as... more Trimetallic Cu10La1Cs1 catalysts prepared via a one-step co-electrodeposition strategy can act as a robust electrocatalyst for CO2RR to C2H4.
Nanocrystalline Ti−Beta zeolite with high hydrophilicity and a Ti−rich exterior was successfully ... more Nanocrystalline Ti−Beta zeolite with high hydrophilicity and a Ti−rich exterior was successfully prepared via a dissolution–recrystallization method. With the post−treatment of tetraethylammonium hydroxide (TEAOH) solution at elevated temperature, the Si and Ti species within the Ti−Beta matrix were partially dissolved and recrystallized on the outer surface of crystals, resulting in the Ti−rich exterior and higher hydrophilicity, which improved the accessibility of the active Ti sites and the enrichment of H2O2. Simultaneously, some of the closed Ti(OSi)4 species were transformed to more active open Ti(OSi)3OH or Ti(OSi)2(H2O)2(OH)2 species. The modified Ti−Beta zeolite exhibited greatly enhanced catalytic performance in the epoxidation of cyclohexene in comparison to the parent Ti−Beta.
The Ag/AgCl@SiO2 catalyst exhibits excellent photocatalytic activity in selective aerobic oxidati... more The Ag/AgCl@SiO2 catalyst exhibits excellent photocatalytic activity in selective aerobic oxidation of methane to carbon monoxide with high selectivity, and extended real light simulation feasibility shows potential in practical application.
Porous carbon–nitrogen hybrid material-supported Co catalysts can effectively promote the chemose... more Porous carbon–nitrogen hybrid material-supported Co catalysts can effectively promote the chemoselective hydrodeoxygenation reaction of a various of aromatic alcohols in ethanol and hydrogen atmosphere, under relatively mild conditions.
The cross-linked PIL with “network structure” can fabricate nitrogen-doped porous carbons with hi... more The cross-linked PIL with “network structure” can fabricate nitrogen-doped porous carbons with higher specific surface area.
Langmuir : the ACS journal of surfaces and colloids, Jan 30, 2018
The reaction between titanium alkoxides, [Ti(OR)], and surface silanol groups is widely used to g... more The reaction between titanium alkoxides, [Ti(OR)], and surface silanol groups is widely used to generate grafted oxo-hydroxo titanium species, whose size is difficult to control. Partial capping of the surface silanols in the presence of the masking pattern of self-repelling tetramethylammonium ions allows us to isolate surface silanol islets, on which isolated titanium ions and dimeric oxo titanium species can be generated up to 2 Ti/Si mol %. Above this loading, and up to ∼8 Ti/Si mol %, higher oligomers (trimers, hexamers, octamers, and so on) are formed, reaching the size obtained at much lower loadings (<1 Ti/Si mol %) on a nonmodified silica surface. The downsizing effect produced on our organically modified surface is monitored from the blue-shift of the charge-transfer band of the Ti(IV) ions, measured by reflectance UV-visible spectroscopy. It is also mirrored by a higher catalytic activity in cyclohexene epoxidation, revealing that it is not only the isolated Ti species...
Coating fibrous γ-alumina stabilized the SBA-15 structure against collapse in steam, allowing for... more Coating fibrous γ-alumina stabilized the SBA-15 structure against collapse in steam, allowing for the facile synthesis of mesoporous aluminosilicate which showed excellent catalytic performance in the cracking of 1,3,5-triisopropyl benzene.
To produce aromatic hydrocarbons from biomass, a novel route is reported for one-pot selective hy... more To produce aromatic hydrocarbons from biomass, a novel route is reported for one-pot selective hydrodeoxygenation of a lignin derived aryl ether mixture to C6–C9 aromatic hydrocarbons over Ru/sulfate zirconia in the aqueous phase.
In this perspective article, mainly based on the model of structural water molecules (SWs) as bri... more In this perspective article, mainly based on the model of structural water molecules (SWs) as bright color emitters, we briefly summarize the development and theoretical elaboration of P-band intermediate state (PBIS) theory and its application in catalysis, especially in several representative redox reactions. In particular, with a simple equation (2∫ψ2σ1’ + ∫ψ2σ2 + ∫ψ2π =1), we define how the interface sate correlate with the three basic parameters of heterogenous catalysis (conversion, selectivity and stability), and what is the dynamic nature of catalytic active sites. Overall, the proposal of SWs dominated PBIS theory provides new insights into the physical origin of photoluminescence emission of low-dimensional quantum nanodots and the physical nature of nanoconfinement and nanoconfined catalysis.
An earth-abundant Co-based catalyst, Co@C–N(800), could efficiently catalyze the reductive aminat... more An earth-abundant Co-based catalyst, Co@C–N(800), could efficiently catalyze the reductive amination of carbonyl compounds into primary amines at 35 °C owing to the synergistic effect of Co nanoparticles and atomically dispersed Co–Nx sites.
Trimetallic Cu10La1Cs1 catalysts prepared via a one-step co-electrodeposition strategy can act as... more Trimetallic Cu10La1Cs1 catalysts prepared via a one-step co-electrodeposition strategy can act as a robust electrocatalyst for CO2RR to C2H4.
Nanocrystalline Ti−Beta zeolite with high hydrophilicity and a Ti−rich exterior was successfully ... more Nanocrystalline Ti−Beta zeolite with high hydrophilicity and a Ti−rich exterior was successfully prepared via a dissolution–recrystallization method. With the post−treatment of tetraethylammonium hydroxide (TEAOH) solution at elevated temperature, the Si and Ti species within the Ti−Beta matrix were partially dissolved and recrystallized on the outer surface of crystals, resulting in the Ti−rich exterior and higher hydrophilicity, which improved the accessibility of the active Ti sites and the enrichment of H2O2. Simultaneously, some of the closed Ti(OSi)4 species were transformed to more active open Ti(OSi)3OH or Ti(OSi)2(H2O)2(OH)2 species. The modified Ti−Beta zeolite exhibited greatly enhanced catalytic performance in the epoxidation of cyclohexene in comparison to the parent Ti−Beta.
The Ag/AgCl@SiO2 catalyst exhibits excellent photocatalytic activity in selective aerobic oxidati... more The Ag/AgCl@SiO2 catalyst exhibits excellent photocatalytic activity in selective aerobic oxidation of methane to carbon monoxide with high selectivity, and extended real light simulation feasibility shows potential in practical application.
Porous carbon–nitrogen hybrid material-supported Co catalysts can effectively promote the chemose... more Porous carbon–nitrogen hybrid material-supported Co catalysts can effectively promote the chemoselective hydrodeoxygenation reaction of a various of aromatic alcohols in ethanol and hydrogen atmosphere, under relatively mild conditions.
Uploads
Papers by Mingyuan He