Review
Chemistry, Physical
Yunqi Yu, Kangcheng Chen, Qin Wu, Yaoyuan Zhang, Daxin Shi, Hansheng Li
Summary: This paper reviews the modification strategies, advantages, and problems of Pt/rGO catalysts, and discusses the relevant mechanisms. Moreover, the challenges and future development directions of Pt/rGO modifications are summarized.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Jie Zhao, Hao Zeng, Zhe-Xue Lu
Summary: The study demonstrated that composite microspheres composed of intertwined Pt nanowires and graphene oxide (GO) exhibited improved catalytic performance for direct methanol fuel cells (DMFCs) compared to commercial Pt-C, with higher methanol oxidation reaction activity, lower onset potential, better anti-CO toxicity, and enhanced durability.
ACS APPLIED NANO MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Ligang Chen, Xin Liang, Dingsheng Wang, Zuobo Yang, Chun-Ting He, Wei Zhao, Jiajing Pei, Yanrong Xue
Summary: In this study, a facile dual-regulation approach was used to synthesize Ru1Ptn single atom alloy catalysts, which exhibited excellent activity in electrocatalytic reactions. Density functional theory calculations demonstrated the important role of Ru atoms in reaction energetics.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Suwen Li, Yu Zhang, Yuanxia Han, Fangfei Lv, Baocang Liu, Lili Huo
Summary: In this study, a ternary hybrid electrocatalyst consisting of Pt nanoparticles supported on highly dispersed and well-defined bimetallic molybdenum-tungsten carbide (MoWC) nanocrystals incorporated reduced graphene oxide (rGO) is developed for efficient methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR) in DMFCs.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Jing Dong, Tingting Sun, Yixin Zhang, Hong Zhang, Songrang Lu, Dongmei Hu, Jianfeng Chen, Lianbin Xu
Summary: By the synergistic interaction of Ni and Co, mesoporous structure of NiCo alloy, and the optimized combination of mesoporous NiCo with rGO, the optimal MNi63Co37/rGO(5) catalyst shows excellent electrocatalytic performance for hydrogen evolution reaction (HER) with a low overpotential of 115 mV, current density of 10 mA cm(-2), Tafel slope of 45 mV dec(-1), and high durability in alkaline solution.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Mohamad Fahrul Radzi Hanifah, Juhana Jaafar, Mohd Hafiz Dzarfan Othman, Norhaniza Yusof, Mukhlis A. Rahman, Wan Norharyati Wan Salleh, Ahmad Fauzi Ismail, Farhana Aziz, Ghani Ur Rehman
Summary: This study successfully decorated palladium nanoparticles on reduced graphene oxide, demonstrating outstanding electrocatalytic activity towards methanol oxidation reaction in an acidic medium and remarkable stability. The new electrocatalyst offers a reasonable cost, clean, and facile synthesis approach.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Physical
Aleksandra Selivanova, Victoria G. Demina, Egor E. Aydakov, Andrey A. Saraev, Vasily V. Kaichev, Valerii Bukhtiyarov
Summary: The oxidation of methanol on a Pt(1 1 1) single crystal surface was found to start at around 350 K, producing mainly CO2 and methyl formate. Key intermediates in the reaction include CO and formaldehyde, with formates exhibiting low thermal stability and carbonates showing extremely high thermal stability. Carbonates, along with CO, can inhibit the oxidation of methanol on the platinum surface.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Analytical
Tayyaba Noor, Muhammad Mohtashim, Naseem Iqbal, Salman Raza Naqvi, Neelam Zaman, Lubna Rasheed, Muhammad Yousuf
Summary: A novel bimetallic iron oxide/nickel oxide metal-organic framework (FeO/NiO MOF) was successfully synthesized using two different linkers and also its composites with reduced graphene oxide showed enhanced electrocatalytic response for methanol oxidation. The highest current density was achieved by the 4 wt% rGO-FeO/NiO MOF, making it a promising catalytic material for methanol oxidation in DMFC.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Ya-Wei Zhou, Ya-Feng Chen, Kun Jiang, Zhen Liu, Zi-Jie Mao, Wei-Yi Zhang, Wen-Feng Lin, Wen-Bin Cai
Summary: The study employs Pt-SnO2 nanoflakes as a catalyst, where the electronic structure manipulation favors the selective enhancement of the non-CO pathway for electrochemical methanol oxidation reaction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
K. Krishnadevi, S. RatnaKumari, D. Prasanna, H. Bhavani Naga Prasanna, V Anuradha
Summary: The study investigates the electrocatalytic performance of platinum-gold nanoparticles decorated triazine framework on glycerol, with their oxidized products analyzed to show enhanced activity. Results indicate that the Pt-Au/Poly(CC-co-BP)-RGO catalyst exhibits improved catalytic activity and stability compared to other catalysts, achieving a maximum power density of 122.96 mWcm(-2) in a single direct alkaline glycerol fuel cell at 70 degrees C.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Polymer Science
Gengxu Han, Yan Yang, Danyang Feng, Jingwei Liu, Ling Zhang, Feng Wei, Zhen-An Qiao
Summary: Large-sized continuous reduced graphene oxide@mesoporous platinum (rGO@mPt) sheets were synthesized using an interface and charge induced strategy. The rGO@mPt sheets have a stable framework, abundant active sites, and significantly improved durability and catalytic activity in methanol oxidation reaction.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Sara Sheikhi, Fahimeh Jalali
Summary: In this study, a porous carbon platform containing zirconium oxide was used for dispersing Ni nanoparticles and applied to methanol oxidation. The electrocatalyst showed excellent electrocatalytic behavior towards methanol oxidation in alkaline medium, suggesting its potential as an alternative to Pt-based electrocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Yu Ding, Bo-Qiang Miao, Ya-Chong Liu, Nan Hou, Yun Yang, Pu-Jun Jin, Shi-Bin Yin, Yu Chen
Summary: RhCo-NTs with hollow and tubular architecture synthesized through a one-pot reduction approach show enhanced electroactivity and stability for the methanol oxidation reaction.
Article
Chemistry, Physical
Dalila S. Mekazni, Rosa M. Aran-Ais, Adolfo Ferre-Vilaplana, Enrique Herrero
Summary: The mechanism of methanol electro-oxidation on platinum in water requires the presence of adsorbed hydroxide ions, which has crucial implications for optimizing fuel cells using alcohols as fuel. This unexpected observation represents a paradigm shift in understanding how alcohols are electro-oxidized on reference systems and has important implications for the search for better electrocatalysts.
Article
Chemistry, Physical
Juan Qin, Zhenzhen Li, Deying Leng, Kai Ye, Yafeng Zhang, Dawei Zhang, Fengyun Huang, Qianru Liu, Feng Yin
Summary: PtGd/Gd2O3 composite catalyst shows superior catalytic performance towards methanol oxidation reaction compared to commercial Pt/C, with a more stable performance after 8000 cycling tests.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)