scholarly journals Transition metal on topological chiral semimetal PdGa with tailored hydrogen adsorption and reduction

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Qun Yang ◽  
Guowei Li ◽  
Yudi Zhang ◽  
Jian Liu ◽  
Jiancun Rao ◽  
...  
Keyword(s):  
High Performance ◽  
Hydrogen Adsorption ◽  
Surface States ◽  
Catalytic Performance ◽  
Support Interaction ◽  
Adsorption Behaviors ◽  
Metal Support Interaction ◽  
High Efficient ◽  
Metal Support ◽  
Topological Surface

AbstractThe difficulties in designing high-performance hydrogen evolution reaction (HER) catalysts lie in the manipulation of adsorption behaviors of transition metals (TMs). Topological chiral semimetals with super-long Fermi arc surface states provide an ideal platform for engineering the catalytic performance of TMs through the metal-support interaction. We found the adsorption trends of TMs can be modified significantly when deposited at the surface of the PdGa chiral crystal. The electron transfer from the TMs to the surface states of the PdGa reshapes the d band structure of TMs and weakens the hydrogen intermediate bonding. Especially, W/PdGa is expected to be a good HER catalyst with close to zero Gibbs free energy. Experimentally, we found a Pt-like exchange current density and turnover frequency when depositing W atoms at the PdGa nanostructures surface. The findings provide a way to develop high-efficient electrocatalysts by the interplay between topological surface states and metal-support interaction.

Isomorphic titanium-substituted mesoporous SBA-16 as support for cobalt Fischer–Tropsch synthesis catalysts: Balance between dispersion and reduction

2021 ◽  
Author(s):  
Liang Wei ◽  
Jian Chen ◽  
Shuai Lyu ◽  
Chengchao Liu ◽  
Yanxi Zhao ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Support Interaction ◽  
Delicate Balance ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Synthesis Catalysts

The delicate balance between dispersion and reduction of the Co-based Fischer–Tropsch synthesis catalyst is the golden key to enhancing catalytic performance, which highly depends on an optimized metal–support interaction. In...

Zn2+ stabilized Pd clusters with enhanced covalent metal–support interaction via the formation of Pd–Zn bonds to promote catalytic thermal stability

Nanoscale ◽  
2020 ◽  
Vol 12 (27) ◽  
pp. 14825-14830
Author(s):  
Kai-Qiang Jing ◽  
Yu-Qing Fu ◽  
Zhi-Qiao Wang ◽  
Zhe-Ning Chen ◽  
Hong-Zi Tan ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Adsorption Energy ◽  
Catalytic Performance ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Pd Clusters

Zn2+-Modified MgAl-LDH with ultra-low Pd cluster loading was synthesized. The higher adsorption energy and strong covalent metal–support interaction via forming Pd–Zn bonds over Pd/ZnMgAl-LDH account for the robust catalytic performance.

Enhancing metal–support interaction by in situ ion-exchanging strategy for high performance Pt catalysts in hydrogen evolution reaction

2020 ◽  
Vol 8 (32) ◽  
pp. 16582-16589 ◽  
Author(s):  
Xulei Sui ◽  
Lei Zhang ◽  
Junjie Li ◽  
Kieran Doyle-Davis ◽  
Ruying Li ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Performance ◽  
Pt Catalysts ◽  
Acidic Media ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Metal Support Interactions

A facile in situ ion-exchanging strategy directly enhances metal–support interactions between Pt and support and promotes HER electrocatalytic performance in acidic media.

Ruthenium nanoclusters dispersed on titania nanorods and nanoparticles as high-performance catalysts for aqueous-phase Fischer–Tropsch synthesis

2016 ◽  
Vol 6 (23) ◽  
pp. 8355-8363 ◽  
Author(s):  
Jing-Wen Yu ◽  
Wei-Zhen Li ◽  
Tao Zhang ◽  
Ding Ma ◽  
Ya-Wen Zhang
Keyword(s):  
Aqueous Phase ◽  
High Performance ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support

The high AFTS activity and C5+ selectivity of the serial Ru/TiO2 nanocatalysts were favoured by the increasing metallic Ru sites due to H2 reduction pretreatment and weak metal–support interaction.

Remarkable crystal phase effect of Cu/TiO2catalysts on the selective hydrogenation of dimethyl oxalate

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29040-29047 ◽  
Author(s):  
Bin Wang ◽  
Chao Wen ◽  
Yuanyuan Cui ◽  
Xi Chen ◽  
Yu Dong ◽  
...  
Keyword(s):  
Catalytic Hydrogenation ◽  
Selective Hydrogenation ◽  
Catalytic Performance ◽  
Crystal Phase ◽  
Phase Effect ◽  
Dimethyl Oxalate ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Titania Support

Crystal phase of titania support plays an important role in catalytic hydrogenation of dimethyl oxalate. Optimized catalytic performance was achieved for the Cu/P25 due to the intimate metal support interaction.

scholarly journals Study of the Metal–Support Interaction and Electronic Effect Induced by Calcination Temperature Regulation and Their Effect on the Catalytic Performance of Glycerol Steam Reforming for Hydrogen Production

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3149
Author(s):  
Songshan Zhu ◽  
Yunzhu Wang ◽  
Jichang Lu ◽  
Huihui Lu ◽  
Sufang He ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Calcination Temperature ◽  
Steam Reforming ◽  
Electronic Effect ◽  
Catalytic Performance ◽  
Tio2 Catalyst ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Ni Species

Steam reforming of glycerol to produce hydrogen is considered to be the very promising strategy to generate clean and renewable energy. The incipient-wetness impregnation method was used to load Ni on the reducible carrier TiO2 (P25). In the process of catalyst preparation, the interaction and electronic effect between metal Ni and support TiO2 were adjusted by changing the calcination temperature, and then the activity and hydrogen production of glycerol steam reforming reaction (GSR) was explored. A series of modern characterizations including XRD, UV-vis DRS, BET, XPS, NH3-TPD, H2-TPR, TG, and Raman have been applied to systematically characterize the catalysts. The characterization results showed that the calcination temperature can contribute to varying degrees of influences on the acidity and basicity of the Ni/TiO2 catalyst, the specific surface area, together with the interaction force between Ni and the support. When the Ni/TiO2 catalyst was calcined at 600 °C, the Ni species can be produced in the form of granular NiTiO3 spinel. Consequently, due to the moderate metal–support interaction and electronic activity formed between the Ni species and the reducible support TiO2 in the NiO/Ti-600C catalyst, the granular NiTiO3 spinel can be reduced to a smaller Ni0 at a lower temperature, and thus to exhibit the best catalytic performance.

Graphitic-C3N4 quantum dots modified carbon nanotubes as a novel support material for a low Pt loading fuel cell catalyst

RSC Advances ◽  
2016 ◽  
Vol 6 (38) ◽  
pp. 32290-32297 ◽  
Author(s):  
Cun-Zhi Li ◽  
Zhen-Bo Wang ◽  
Xu-Lei Sui ◽  
Li-Mei Zhang ◽  
Da-Ming Gu
Keyword(s):  
Catalytic Performance ◽  
Support Material ◽  
Support Interaction ◽  
Fuel Cell Catalyst ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Ptru Catalyst ◽  
Carbon Nanotube Composite ◽  
Low Pt Loading ◽  
Modified Carbon Nanotubes

A novel graphitic-C3N4 quantum dot modified carbon nanotube composite supported PtRu catalyst is prepared by π–π stacking. The enhanced catalytic performance of the catalyst is due to the better dispersion of PtRu NPs and the strong metal–support interaction (SMSI).

Sign in / Sign up

Export Citation Format

Share Document