3D Printed Nickel-Molybdenum-Based Electrocatalysts for Hydrogen Evolution at Low Overpotentials in a Flow-Through Configuration

Sullivan, Ian1,2; Zhang, Huanlei3; Zhu, Cheng4; Wood, Marissa4; Nelson, Art J.4; Baker, Sarah E.4; Spadaccini, Christopher M.4; Van Buuren, Tony4; Lin, Meng3; Duoss, Eric B.4; Liang, Siwei4; Xiang, Chengxiang1,2

2021-05-05

10.1021/acsami.1c05648

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

Three-dimensional (3D) printed, hierarchically porous nickel molybdenum (NiMo) electrocatalysts were synthesized and evaluated in a flow-through configuration for the hydrogen evolution reaction (HER) in 1.0 M KOH(aq) in a simple electrochemical H-cell. 3D NiMo electrodes possess hierarchically porous structures because of the resol-based aerogel precursor, which generates superporous carbon aerogel as a catalyst support. Relative to a traditional planar electrode configuration, the flow-through configuration allowed efficient removal of the hydrogen bubbles from the catalyst surface, especially at high operating current densities, and significantly decreased the overpotentials required for HER. An analytical model that accounted for the electrokinetics of HER as well as the mass transport with or without the flow-through configuration was developed to quantitatively evaluate voltage losses associated with kinetic overpotentials and ohmic resistance due to bubble formation in the porous electrodes. The chemical composition, electrochemical surface area (ECSA), and roughness factor (RF) were also systematically studied to assess the electrocatalytic performance of the 3D printed, hierarchically porous NiMo electrodes. An ECSA of 25163 cm(2) was obtained with the highly porous structures, and an average overpotential of 45 mV at 10 mA cm(-2) was achieved over 24 h by using the flow-through configuration. The flow-through configuration evaluated in the simple H-cell achieved high electrochemical accessible surface areas for electrochemical reactions and provided useful information for adaption of the porous electrodes in flow cells.

hydrogen evolution reaction electrocatalysis 3D printing alkaline electrolysis NiMo flow-through electrochemistry solar fuel

SCI ; EI

英语

通讯

US Department of Energy[DE-AC52-07NA27344] ; LDRD Awards["19-SI-005","19-FS-047"] ; IM review[LLNL-JRNL-816169] ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Fuels from Sunlight Hub[DE-SC0021266]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000648552500068

AMER CHEMICAL SOC

20212210427491

Aerogels ; Binary alloys ; Electrocatalysts ; Electrochemical electrodes ; Electrohydrodynamics ; Electromagnetic fields ; Hydrogen ; Hydrogen evolution reaction ; Molybdenum ; Nickel ; Ohmic contacts ; Porosity ; Potassium hydroxide ; Surface reactions

Molybdenum and Alloys:543.3 ; Nickel:548.1 ; Electricity and Magnetism:701 ; Printing Equipment:745.1.1 ; Colloid Chemistry:801.3 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Physical Properties of Gases, Liquids and Solids:931.2

Web of Science

1.CALTECH, Liquid Sunlight Alliance LiSA, Pasadena, CA 91125 USA
2.CALTECH, Dept Appl Phys & Mat Sci, Pasadena, CA 91125 USA
3.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Guangdong, Peoples R China
4.Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

Sullivan, Ian,Zhang, Huanlei,Zhu, Cheng,et al. 3D Printed Nickel-Molybdenum-Based Electrocatalysts for Hydrogen Evolution at Low Overpotentials in a Flow-Through Configuration[J]. ACS Applied Materials & Interfaces,2021,13(17):20260-20268.

Sullivan, Ian.,Zhang, Huanlei.,Zhu, Cheng.,Wood, Marissa.,Nelson, Art J..,...&Xiang, Chengxiang.(2021).3D Printed Nickel-Molybdenum-Based Electrocatalysts for Hydrogen Evolution at Low Overpotentials in a Flow-Through Configuration.ACS Applied Materials & Interfaces,13(17),20260-20268.

Sullivan, Ian,et al."3D Printed Nickel-Molybdenum-Based Electrocatalysts for Hydrogen Evolution at Low Overpotentials in a Flow-Through Configuration".ACS Applied Materials & Interfaces 13.17(2021):20260-20268.