scholarly journals Boosting up the Low Catalytic Activity of Silver for H2 Production on Ag/TiO2 Photocatalyst: Thiocyanate as a Selective Modifier

ACS Catalysis ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 821-828 ◽  
Author(s):  
Yeoseon Choi ◽  
Hyoung-il Kim ◽  
Gun-hee Moon ◽  
Seongwon Jo ◽  
Wonyong Choi
Keyword(s):  
Catalytic Activity ◽  
H2 Production ◽  
Tio2 Photocatalyst

Macromolecular Engineering of the Outer Coordination Sphere of [2Fe-2S] Metallopolymers to Enhance Catalytic Activity for H2 Production

2018 ◽  
Vol 7 (11) ◽  
pp. 1383-1387 ◽  
Author(s):  
William P. Brezinski ◽  
Metin Karayilan ◽  
Kayla E. Clary ◽  
Keelee C. McCleary-Petersen ◽  
Liye Fu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Coordination Sphere ◽  
H2 Production ◽  
Outer Coordination Sphere

S-Scheme α-Fe2O3/TiO2 Photocatalyst with Pd Cocatalyst for Enhanced Photocatalytic H2 Production Activity and Stability

2021 ◽  
Author(s):  
Weerapong Bootluck ◽  
Thawat Chittrakarn ◽  
Kuaanan Techato ◽  
Panitan Jutaporn ◽  
Watsa Khongnakorn
Keyword(s):  
H2 Production ◽  
Tio2 Photocatalyst ◽  
Production Activity

scholarly journals Highly Selective Syngas/H2 Production via Partial Oxidation of CH4 Using (Ni, Co and Ni–Co)/ZrO2–Al2O3 Catalysts: Influence of Calcination Temperature

Processes ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 141 ◽  
Author(s):  
Anis Hamza Fakeeha ◽  
Yasir Arafat ◽  
Ahmed Aidid Ibrahim ◽  
Hamid Shaikh ◽  
Hanan Atia ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Calcination Temperature ◽  
Partial Oxidation ◽  
Sol Gel ◽  
Analytical Techniques ◽  
Oxygen Storage Capacity ◽  
H2 Production ◽  
Oxygen Storage ◽  
Calcination Temperatures ◽  
Metal Support Interaction

In this study, Ni, Co and Ni–Co catalysts supported on binary oxide ZrO2–Al2O3 were synthesized by sol-gel method and characterized by means of various analytical techniques such as XRD, BET, TPR, TPD, TGA, SEM, and TEM. This catalytic system was then tested for syngas respective H2 production via partial oxidation of methane at 700 °C and 800 °C. The influence of calcination temperatures was studied and their impact on catalytic activity and stability was evaluated. It was observed that increasing the calcination temperature from 550 °C to 800 °C and addition of ZrO2 to Al2O3 enhances Ni metal-support interaction. This increases the catalytic activity and sintering resistance. Furthermore, ZrO2 provides higher oxygen storage capacity and stronger Lewis basicity which contributed to coke suppression, eventually leading to a more stable catalyst. It was also observed that, contrary to bimetallic catalysts, monometallic catalysts exhibit higher activity with higher calcination temperature. At the same time, Co and Ni–Co-based catalysts exhibit higher activity than Ni-based catalysts which was not expected. The Co-based catalyst calcined at 800 °C demonstrated excellent stability over 24 h on stream. In general, all catalysts demonstrated high CH4 conversion and exceptionally high selectivity to H2 (~98%) at 700 °C.

Insights into the catalytic activity of Ru/NaY catalysts for efficient H2 production through aqueous phase reforming

2020 ◽  
Vol 4 (2) ◽  
pp. 678-690 ◽  
Author(s):  
Pranjal Gogoi ◽  
Atul S. Nagpure ◽  
Prabu Kandasamy ◽  
C. V. V. Satyanarayana ◽  
Thirumalaiswamy Raja
Keyword(s):  
Catalytic Activity ◽  
Ion Exchange ◽  
Aqueous Phase ◽  
H2 Production ◽  
Zeolite Catalysts ◽  
Nay Zeolite ◽  
Ruthenium Nanoparticles ◽  
Exchange Method ◽  
Aqueous Phase Reforming ◽  
Ion Exchange Method

Ruthenium nanoparticles supported on NaY zeolite catalysts were synthesized by a simple ion exchange method.

A systematic study of photocatalytic H2 production from propionic acid solution over Pt/TiO2 photocatalyst

2010 ◽  
Vol 36 (1) ◽  
pp. 75-86 ◽  
Author(s):  
Li-Fang Wei ◽  
Xian-Jun Zheng ◽  
Zhi-Hong Zhang ◽  
Yong-Jie Wei ◽  
Bing Xie ◽  
...  
Keyword(s):  
Acid Solution ◽  
Propionic Acid ◽  
Systematic Study ◽  
H2 Production ◽  
Tio2 Photocatalyst

Continuous synthesis of a co-doped TiO2 photocatalyst and its enhanced visible light catalytic activity using a photocatalysis microreactor

RSC Advances ◽  
2015 ◽  
Vol 5 (68) ◽  
pp. 54853-54860 ◽  
Author(s):  
Wei He ◽  
Zheng Fang ◽  
Kai Zhang ◽  
Xin Li ◽  
Dong Ji ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Precipitation Method ◽  
Tio2 Photocatalyst ◽  
Continuous Precipitation ◽  
Doped Tio2 ◽  
Continuous Synthesis ◽  
Co Doped

Three co-doped TiO2 samples were synthesized by a continuous precipitation method with a valve assisted micromixer.

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