PdMo bimetallene for oxygen reduction catalysis

Luo, Mingchuan; Zhao, Zhonglong; Zhang, Yelong; Sun, Yingjun; Xing, Yi; Lv, Fan; Yang, Yong; Zhang, Xu; Hwang, Sooyeon; Qin, Yingnan; Ma, Jingyuan; Lin, Fang; Su, Dong; Lü, Gang; Guo, Shaojun

doi:10.1038/s41586-019-1603-7

Cited by 1,063 publications

(990 citation statements)

References 51 publications

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“…Instead of Ru‐based alloys, bimetallic alloys composed of other precious metal elements have also been widely studied as cost‐effective catalysts, such as PtAu, [ 107 ] PtNi, [ 5 ] and PdMo. [ 108 ] In addition, dealloying can be used as an effective strategy to build hierarchical electrode structure and increase the number of exposed active sites, leading to high OER performance ( Figure 3 ). [ 101 ]…”

Section: Precious Metal‐based Oer Catalystsmentioning

confidence: 99%

“…There are many methods to introduce lattice strains in metal‐based catalysts, including doping other elements [ 54 ] and preparing unique nanostructures such as ultra‐thin NSs. [ 108,110,111 ] For example, a four‐atomic‐layer model PdMo bimetallene NSs can generate a large tensile strain up to 1.4%. [ 108 ] The PdMo bimetallene NSs catalyst with strained surface structure displays a 30 mV smaller overpotential at 10 mA cm −2 , accompanying excellent durability compared to the benchmark IrO 2 catalyst.…”

Section: Precious Metal‐based Oer Catalystsmentioning

confidence: 99%

“…[ 108,110,111 ] For example, a four‐atomic‐layer model PdMo bimetallene NSs can generate a large tensile strain up to 1.4%. [ 108 ] The PdMo bimetallene NSs catalyst with strained surface structure displays a 30 mV smaller overpotential at 10 mA cm −2 , accompanying excellent durability compared to the benchmark IrO 2 catalyst. The fabrication of core‐shell heterostructure is another typical strategy to induce lattice strains in metal‐based catalysts.…”

Section: Precious Metal‐based Oer Catalystsmentioning

confidence: 99%

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Recent Progress in Electrocatalysts for Acidic Water Oxidation

Lei

Wang

Zhao

et al. 2020

Advanced Energy Materials

207

161

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Hydrogen is a clean and renewable energy carrier for powering future transportation and other applications. Water electrolysis is a promising option for hydrogen production from renewable resources such as wind and solar energy. To date, tremendous efforts have been devoted to the development of electrocatalysts and membranes for water electrolysis technology. In principle, water electrolysis in acidic media has several advantages over that in alkaline media, including favorable reaction kinetics, easy product separation, and low operating pressure. However, acidic water electrolysis poses higher requirements for the catalysts, especially the ones for the oxygen evolution reaction. It is a grand challenge to develop highly active, durable, and cost‐effective catalysts to replace precious metal catalysts for acidic water oxidation. In this article, an overview is presented of the latest developments in design and synthesis of electrocatalysts for acidic water oxidation, emphasizing new strategies for achieving high electrocatalytic activity while maintaining excellent durability at low cost. In particular, the reaction pathways and intermediates are discussed in detail to gain deeper insight into the oxygen evolution reaction mechanism, which is vital to rational design of more efficient electrocatalysts. Further, the remaining scientific challenges and possible strategies to overcome them are outlined, together with perspectives for future‐generation electrocatalysts that exploit nanoscale materials for water electrolysis.

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Section: Precious Metal‐based Oer Catalystsmentioning

confidence: 99%

Section: Precious Metal‐based Oer Catalystsmentioning

confidence: 99%

Section: Precious Metal‐based Oer Catalystsmentioning

confidence: 99%

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Recent Progress in Electrocatalysts for Acidic Water Oxidation

Lei

Wang

Zhao

et al. 2020

Advanced Energy Materials

207

161

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“…Up till now, various independent approaches have been developed to construct metal NSs catalysts such as monometallic Pd NSs, [ 10 ] Rh NSs, [ 11 ] bimetallic PdMo NSs, [ 12 ] PdZn NSs, [ 13 ] PdCu NSs, [ 14 ] etc. Among them, benefiting from optimal electronic and synergetic effect and high precious metal utilization, binary Pd‐based NSs have been verified their preferable satisfactory catalytic behaviors.…”

Section: Introductionmentioning

confidence: 99%

Universal Surfactant‐Free Strategy for Self‐Standing 3D Tremella‐Like Pd–M (M = Ag, Pb, and Au) Nanosheets for Superior Alcohols Electrocatalysis

Gao

Zhang

Ren

et al. 2020

Adv Funct Materials

210

108

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2000255 (1 of 9) Pd-based nanosheet materials have emerged as efficient catalysts for monobasic and polyhydric alcohol oxidation reactions. However, most reported synthetic methods of Pd-based nanosheets (NSs) are nonuniversal and surfactant-involved, leading to residue-covered surfaces with drastically damaged electrocatalytic properties. Herein, a universal, surfactant-free, simple one-pot route is developed for the precise synthesis of a kind of novel self-standing Pd-M (M = Ag, Pb, Au, Ga, Cu, Pt, etc.) NSs with tremella-like superstructures are assembled using ultrathin two-dimensional (2D) NSs. Benefiting from the universal surfactant-free methods, the obtained Pd-M NSs exhibit clean surfaces and stable three-dimensional (3D) self-standing structures that overcome the difficulty of normal close packing and overlapping 2D NSs. The Pd-M (M = Ag, Pb, and Au) NSs with tremella-like structures all show excellent ethanol oxidation reaction (EOR) and ethylene glycol oxidation reaction (EGOR) properties. In particular, with the optimal superstructure, better electronic effect, and promoted toxicity tolerance, the EOR/EGOR mass activities of Pd 7 Ag NSs, Pd 7 Pb NSs, and Pd 7 Au NSs are 8.2/7.3, 7.2/5.7, and 5.3/4.4 times higher than that of commercial Pd/C catalysts. This advanced 3D construction also endows Pd-M NSs with more favorable stability than Pd/C. This study may be extended to Pd-M (M = other metals) NSs and open up more opportunities for broad catalytic applications.

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“…Owing to their high surface area/volume ratio with sufficient exposed active sites and rapid charge transport, 2 D nanosheets (NSs) show better catalytic performance than other structures . In addition, if the thickness of ultrathin NSs is less than 5 nm, the catalytic performance will show further improvement because of the under‐coordinated surface sites.…”

Section: Two‐dimensional Nanostructuresmentioning

confidence: 99%

Recent Achievements in Noble Metal Catalysts with Unique Nanostructures for Liquid Fuel Cells

Sun

2020

ChemSusChem

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In recent years, research efforts have been focused on the design and fabrication of highly efficient catalysts for liquid fuel cells, because the use of these cells is an important approach for alleviating environmental pollution and energy crises. However, the limitations of the catalytic performance of industrial Pt/C have strongly hindered the development of these fuel cells. The catalyst morphology has a strong impact on its performance; nanostructured catalysts are preferred as they offer large specific surface area and more exposed active centers. In view of this, many catalysts with unique structures have been synthesized in recent years, all of which show excellent catalytic performance characteristics. Despite these achievements, few efforts have been made to survey this field comprehensively. Herein, the recent advances in catalysts for liquid fuel cells are summarized, with a focus on noble metal catalysts with unique morphologies such as nanowires, nanosheets, and assembly structures. Their formation mechanisms are discussed critically. The relationship between the unique morphologies and excellent performance of these catalysts is also explored. This work may provide guidelines for the further development of liquid fuel cells.

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PdMo bimetallene for oxygen reduction catalysis

Cited by 1,063 publications

References 51 publications

Recent Progress in Electrocatalysts for Acidic Water Oxidation

Recent Progress in Electrocatalysts for Acidic Water Oxidation

Universal Surfactant‐Free Strategy for Self‐Standing 3D Tremella‐Like Pd–M (M = Ag, Pb, and Au) Nanosheets for Superior Alcohols Electrocatalysis

Recent Achievements in Noble Metal Catalysts with Unique Nanostructures for Liquid Fuel Cells

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