1
|
Farah Hanis Nik Zaiman N, Shaari N. Review on flower-like structure nickel based catalyst in fuel cell application. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.11.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
2
|
El-Jemni MA, Abdel-Samad HS, AlKordi MH, Hassan HH. Normalization of the EOR catalytic efficiency measurements based on RRDE study for simply fabricated cost-effective Co/graphite electrode for DAEFCs. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
3
|
Selim MS, El-Safty SA, Abbas MA, Shenashen MA. Facile design of graphene oxide-ZnO nanorod-based ternary nanocomposite as a superhydrophobic and corrosion-barrier coating. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125793] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
4
|
Emran MY, Talat E, El-Safty SA, Shenashen MA, Saad EM. Influence of hollow sphere surface heterogeneity and geometry of N-doped carbon on sensitive monitoring of acetaminophen in human fluids and pharmaceutical products. NEW J CHEM 2021; 45:5452-5462. [DOI: 10.1039/d0nj05442a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
A sensitive and selective acetaminophen sensor assay was designed based on N-HCCS. The surface morphology, and composition of open hollow conjugated spheres of N-HCCS resulted in facile AC diffusion/loading and electrocatalytic oxidation.
Collapse
Affiliation(s)
- Mohammed Y. Emran
- National Institute for Materials Science (NIMS)
- Ibaraki-ken
- Japan
- Department of Chemistry
- Faculty of Science
| | - Eslam Talat
- Department of Chemistry
- Faculty of Science
- Suez University
- Suez
- Egypt
| | | | | | - Eman M. Saad
- Department of Chemistry
- Faculty of Science
- Suez University
- Suez
- Egypt
| |
Collapse
|
5
|
Lu J, Yang L, Guo W, Xiao S, Wang L, OuYang Y, Gao P. The mechanism of Co oxyhydroxide nano-islands deposited on a Pt surface to promote the oxygen reduction reaction at the cathode of fuel cells. RSC Adv 2020; 10:44719-44727. [PMID: 35516237 PMCID: PMC9058475 DOI: 10.1039/d0ra08645b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 11/23/2020] [Indexed: 01/10/2023] Open
Abstract
With the rapid development of fuel cell technology, the low reduction rate of oxygen on Pt-based cathodes is generally considered the main obstacle. Pt/transition metal alloys (Pt-Ms) or Pt/transition metal oxides (Pt-MO x ) can be formed by doping transition metal atoms into the lattice of the Pt layer or depositing onto the surface of the Pt layer to intensify the catalytic activity of the electrodes. In this work, a stepwise solution chemical reduction method for high dispersion of cobalt oxyhydroxide (-OCoOH) deposited onto the facet of Pt as nano-islands and the mechanism of promoting the oxygen reduction reaction (ORR) at the cathode have been investigated by density functional theory (DFT) calculation. As a result, the electrocatalytic activity of Pt with nano-island -OCoOH structure was 3.6 times that of the Pt/C catalyst, which indicated that promoting the desorption of the first O atom and weakening the adsorption capacity of the interfacial junction Pt for the second O atom from adsorbed oxygen attributed to the migration of d-band center in Pt and the existence of the Co hydroxyl group.
Collapse
Affiliation(s)
- Jinghao Lu
- College of Chemical Engineering and Materials Science, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, Tianjin University of Science and Technology China +86-13752339079
| | - Libin Yang
- College of Chemical Engineering and Materials Science, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, Tianjin University of Science and Technology China +86-13752339079
| | - Wei Guo
- College of Chemical Engineering and Materials Science, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, Tianjin University of Science and Technology China +86-13752339079
| | - Songtao Xiao
- Department of Radiochemistry, China Institute of Atomic Energy Beijing 102413 China
| | - Lingyu Wang
- Department of Radiochemistry, China Institute of Atomic Energy Beijing 102413 China
| | - Yinggen OuYang
- Department of Radiochemistry, China Institute of Atomic Energy Beijing 102413 China
| | - Peng Gao
- College of Chemical Engineering and Materials Science, Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, Tianjin University of Science and Technology China +86-13752339079
| |
Collapse
|
6
|
Oladapo BI, Oshin EA, Olawumi AM. Nanostructural computation of 4D printing carboxymethylcellulose (CMC) composite. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.nanoso.2020.100423] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
7
|
Bai G, Liu C, Gao Z, Lu B, Tong X, Guo X, Yang N. Atomic Carbon Layers Supported Pt Nanoparticles for Minimized CO Poisoning and Maximized Methanol Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902951. [PMID: 31353799 DOI: 10.1002/smll.201902951] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Indexed: 06/10/2023]
Abstract
Maximizing activity of Pt catalysts toward methanol oxidation reaction (MOR) together with minimized poisoning of adsorbed CO during MOR still remains a big challenge. In the present work, uniform and well-distributed Pt nanoparticles (NPs) grown on an atomic carbon layer, that is in situ formed by means of dry-etching of silicon carbide nanoparticles (SiC NPs) with CCl4 gas, are explored as potential catalysts for MOR. Significantly, as-synthesized catalysts exhibit remarkably higher MOR catalytic activity (e.g., 647.63 mA mg-1 at a peak potential of 0.85 V vs RHE) and much improved anti-CO poisoning ability than the commercial Pt/C catalysts, Pt/carbon nanotubes, and Pt/graphene catalysts. Moreover, the amount of expensive Pt is a few times lower than that of the commercial and reported catalyst systems. As confirmed from density functional theory (DFT) calculations and X-ray absorption fine structure (XAFS) measurements, such high performance is due to reduced adsorption energy of CO on the Pt NPs and an increased amount of adsorbed energy OH species that remove adsorbed CO fast and efficiently. Therefore, these catalysts can be utilized for the development of large-scale and industry-orientated direct methanol fuel cells.
Collapse
Affiliation(s)
- Gailing Bai
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- Department of Materials Engineering, Taiyuan Institute of Technology, Taiyuan, 030008, China
| | - Chang Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhe Gao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China
| | - Baoying Lu
- Guangxi University of Science and Technology, Liuzhou, 545000, China
| | - Xili Tong
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China
| | - Xiangyun Guo
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China
- School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
| | - Nianjun Yang
- Institute of Materials Engineering, University of Siegen, Siegen, 57076, Germany
| |
Collapse
|
8
|
Yi L, Yang S, Fei J, Ding Y, Yang C, Wang X. Carbon-supported Co(OH) 2 coated with Au nanoparticle composites as an efficient catalyst for BH 4− electrooxidation. NEW J CHEM 2019. [DOI: 10.1039/c9nj01052a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Co(OH)2(50)@Au(50)/C nanoparticle composite electrocatalyst combines the lower content of noble metals and much higher catalytic activity for BH4− electrooxidation.
Collapse
Affiliation(s)
- Lanhua Yi
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry, Xiangtan University
- Xiangtan 411105
- China
| | - Shaobo Yang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry, Xiangtan University
- Xiangtan 411105
- China
| | - Junjie Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry, Xiangtan University
- Xiangtan 411105
- China
| | - Yonglan Ding
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry, Xiangtan University
- Xiangtan 411105
- China
| | - Chunguang Yang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry, Xiangtan University
- Xiangtan 411105
- China
| | - Xianyou Wang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry, Xiangtan University
- Xiangtan 411105
- China
| |
Collapse
|
9
|
Fa D, Zhou M, Zhao H, Jiang Y, Miao Y. 3D flower-like Ni–Co–S with high specific surface area for the electrocatalytic oxidation of methanol. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.01.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
10
|
Rani BJ, Ravina M, Saravanakumar B, Ravi G, Ganesh V, Ravichandran S, Yuvakkumar R. Ferrimagnetism in cobalt ferrite (CoFe 2 O 4 ) nanoparticles. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.nanoso.2018.01.012] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
11
|
Clower W, Groden N, Wilson CG. Graphene nanoscrolls fabricated by ultrasonication of electrochemically exfoliated graphene. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.nanoso.2017.09.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
12
|
Abdolhi N, Soltani A, Fadafan HK, Erfani-Moghadam V, Khalaji AD, Balakheyli H. Preparation, characterization and toxicity evaluation ofCo3O4and NiO-filled multi-walled carbon nanotubes loaded to chitosan. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.nanoso.2017.09.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|