N/Ce doped graphene supported Pt nanoparticles for the catalytic oxidation of formaldehyde at room temperature

2022 ◽  
Author(s):  
Yaodong Guo ◽  
Zhaoying Di ◽  
Xiaonan Guo ◽  
Ying Wei ◽  
Runduo Zhang ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Room Temperature ◽  
Pt Nanoparticles ◽  
Doped Graphene

Single atom catalytic oxidation mechanism of formaldehyde on Al doped graphene at room temperature

2020 ◽  
Vol 31 (7) ◽  
pp. 1966-1969 ◽  
Author(s):  
Guanlan Liu ◽  
Junhui Zhou ◽  
Weina Zhao ◽  
Zhimin Ao ◽  
Taicheng An
Keyword(s):  
Catalytic Oxidation ◽  
Room Temperature ◽  
Oxidation Mechanism ◽  
Single Atom ◽  
Doped Graphene

scholarly journals Acid-Alkali-Treated Natural Mordenite-Supported Platinum Nanoparticles (Pt/MORn-H-OH) for Efficient Catalytic Oxidation of Formaldehyde at Room Temperature

2019 ◽  
Vol 2019 ◽  
pp. 1-5
Author(s):  
Xiaoya Gao ◽  
Qian Guo ◽  
Yuan Zhou ◽  
Dedong He ◽  
Yongming Luo
Keyword(s):  
Catalytic Activity ◽  
Catalytic Oxidation ◽  
Crystalline Phase ◽  
Room Temperature ◽  
Alkali Treatment ◽  
Pt Nanoparticles ◽  
Pt Catalysts ◽  
Step Method ◽  
Oxidation Activity ◽  
Supported Platinum

In this work, a series of natural mordenite-supported platinum (Pt) catalysts were prepared by a facile two-step method, namely, treatment of natural mordenite and then the loading of Pt nanoparticles. The acid-alkali-treated natural mordenite-supported Pt samples (1% Pt/MORn-H-OH) exhibited the highly enhanced catalytic oxidation activity of formaldehyde (HCHO) at room temperature. XRD results showed that the crystalline phase of the mordenite did not change significantly in 1% Pt/MORn-H-OH catalyst. However, the acid-alkali treatment endowed the Pt particles excellent dispersion with the smallest diameter of 2.8 nm in a high loading content, which contributed to the optimal catalytic activity of 1% Pt/MORn-H-OH.

Pt Nanoparticles Supported on N/Ce-Doped Activated Carbon for the Catalytic Oxidation of Formaldehyde at Room Temperature

2020 ◽  
Vol 3 (3) ◽  
pp. 2614-2624 ◽  
Author(s):  
Wenjing Bao ◽  
Hongxia Chen ◽  
Hao Wang ◽  
Runduo Zhang ◽  
Ying Wei ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Catalytic Oxidation ◽  
Room Temperature ◽  
Pt Nanoparticles

Single–atom manganese and nitrogen co-doped graphene as low-cost catalysts for the efficient CO oxidation at room temperature

2021 ◽  
Vol 536 ◽  
pp. 147809
Author(s):  
Mingming Luo ◽  
Zhao Liang ◽  
Chao Liu ◽  
Xiaopeng Qi ◽  
Mingwei Chen ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Room Temperature ◽  
Low Cost ◽  
Single Atom ◽  
Doped Graphene ◽  
Co Doped

scholarly journals Electron donation of non-oxide supports boosts O2 activation on nano-platinum catalysts

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tao Gan ◽  
Jingxiu Yang ◽  
David Morris ◽  
Xuefeng Chu ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Pt Nanoparticles ◽  
Catalytic Performance ◽  
Nitrogen Vacancy ◽  
Innovative Strategy ◽  
Oxide Supports ◽  
Heterogeneous Catalytic ◽  
Highly Active ◽  
Electron Sink ◽  
Nitrogen Vacancies

AbstractActivation of O2 is a critical step in heterogeneous catalytic oxidation. Here, the concept of increased electron donors induced by nitrogen vacancy is adopted to propose an efficient strategy to develop highly active and stable catalysts for molecular O2 activation. Carbon nitride with nitrogen vacancies is prepared to serve as a support as well as electron sink to construct a synergistic catalyst with Pt nanoparticles. Extensive characterizations combined with the first-principles calculations reveal that nitrogen vacancies with excess electrons could effectively stabilize metallic Pt nanoparticles by strong p-d coupling. The Pt atoms and the dangling carbon atoms surround the vacancy can synergistically donate electrons to the antibonding orbital of the adsorbed O2. This synergistic catalyst shows great enhancement of catalytic performance and durability in toluene oxidation. The introduction of electron-rich non-oxide substrate is an innovative strategy to develop active Pt-based oxidation catalysts, which could be conceivably extended to a variety of metal-based catalysts for catalytic oxidation.

Influence of alkali metals on Pd/TiO2 catalysts for catalytic oxidation of formaldehyde at room temperature

2016 ◽  
Vol 6 (7) ◽  
pp. 2289-2295 ◽  
Author(s):  
Yaobin Li ◽  
Changbin Zhang ◽  
Hong He ◽  
Jianghao Zhang ◽  
Min Chen
Keyword(s):  
Catalytic Oxidation ◽  
Alkali Metals ◽  
Room Temperature ◽  
Promotion Effect

We previously observed that sodium (Na) addition had a dramatic promotion effect on Pd/TiO2 catalysts for formaldehyde (HCHO) oxidation.

Hollow structured CoSn(OH)6-supported Pt for effective room-temperature oxidation of gaseous formaldehyde

2016 ◽  
Vol 09 (06) ◽  
pp. 1642009 ◽  
Author(s):  
Jing Zhou ◽  
Yong Zhao ◽  
Lifan Qin ◽  
Chen Zeng ◽  
Wei Xiao
Keyword(s):  
Electron Microscopy ◽  
Catalytic Activity ◽  
Room Temperature ◽  
Synergetic Effect ◽  
Hollow Structure ◽  
Pt Nanoparticles ◽  
Hydroxyl Groups ◽  
High Catalytic Activity ◽  
Temperature Oxidation ◽  
X Ray

Uniform CoSn(OH)6 hollow nanoboxes and the derivative with Pt loading (Pt/CoSn(OH)6) were herein synthesized and characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). SEM and TEM analyses showed that CoSn(OH)6 possessed mesoporous hollow structure and Pt nanoparticles with size of 2–8[Formula: see text]nm were uniformly dispersed on the surface of CoSn(OH)6 nanoboxes. The performances of the catalysts for the formaldehyde (HCHO) removal at room temperature were evaluated. These Pt/CoSn(OH)6 catalysts exhibited a remarkable catalytic activity as well as stability for room-temperature oxidative decomposition of gaseous HCHO, while the corresponding CoSn(OH)6 only showed adsorption. The synergetic effect between the highly dispersed Pt nanoparticles and the CoSn(OH)6 nanoboxes with mesoporous hollow structure, a large surface area and abundant surface hydroxyl groups is considered to be the main reason for the observed high catalytic activity of Pt/CoSn(OH)6.

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