AgSn intermetallics as highly selective and active oxygen reduction electrocatalysts in membraneless alkaline fuel cells

Abstract

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Defective ZnS nanoparticles anchored in situ on N-doped carbon as a superior oxygen reduction reaction catalyst

“…Fuel cells are clean and high-efficiency devices that can directly convert chemical energy into electrical energy [1][2][3][4] . The cathode reaction is important in the efficient operation of fuel cells, and the sluggish oxygen reduction reaction (ORR) can hamper a cell's energy-conversion efficiency [5][6][7][8] .…”

Membrane‐less micro fuel cell system design and performance: An overview

“…The performances of many alternative catalysts to the Pt catalyst should be explored in order to reduce costs. Wang et al synthesized an Ag4Sn and Ag 3 Sn intermetallic catalyst. This work showed that a high power density can be generated by using this AgSn catalyst in an alkaline fuel cell system.…”

Synthesis of Sn/Ag–Sn nanoparticles via room temperature galvanic reaction and diffusion

“…Sn nanoparticles (NPs) have been used as phase change materials, 1 for gas-sensing, 2 conductive inks for printed electronics, 3,4 lead-free solder in electronics and anode material in lithium and sodium-ion batteries. [5][6][7][8] Similar to various alloy NPs, [9][10][11][12] the catalytic properties, [13][14][15][16][17] conductivity, 18,19 and soldering properties 20,21 can be further modied and improved by introducing Ag into the Sn NPs to form Ag-Sn alloy NPs. [13][14][15][16][18][19][20][21] The catalytic properties of Ag-Sn NPs were superior compared with that of Sn.…”

“…[5][6][7][8] Similar to various alloy NPs, [9][10][11][12] the catalytic properties, [13][14][15][16][17] conductivity, 18,19 and soldering properties 20,21 can be further modied and improved by introducing Ag into the Sn NPs to form Ag-Sn alloy NPs. [13][14][15][16][18][19][20][21] The catalytic properties of Ag-Sn NPs were superior compared with that of Sn. 13,15 In the work by Jo et al, 19 highly conductive Ag-Sn bimetallic NPs with various compositions (e.g., 80Ag20Sn, 60Ag40Sn, 40Ag60Sn and 20Ag80Sn) were synthesized using the polyol method.…”

“…[13][14][15][16][18][19][20][21] The catalytic properties of Ag-Sn NPs were superior compared with that of Sn. 13,15 In the work by Jo et al, 19 highly conductive Ag-Sn bimetallic NPs with various compositions (e.g., 80Ag20Sn, 60Ag40Sn, 40Ag60Sn and 20Ag80Sn) were synthesized using the polyol method. The synthesized NPs had low sheet resistance which could be applied in printed electronics.…”