{"title":"Surface Corrosion-Resistant and Multi-Scenario MoNiP Electrode for Efficient Industrial-Scale Seawater Splitting","authors":"Weiju Hao, Xunwei Ma, Lincai Wang, Yanhui Guo, Qingyuan Bi, Jinchen Fan, Hexing Li, Guisheng Li","doi":"10.1002/aenm.202403009","DOIUrl":null,"url":null,"abstract":"The construction of efficient and durable multifunctional electrodes for industrial-scale hydrogen production presents a main challenge. Herein, molybdenum-modulated phosphorus-based catalytic electrodes (Mo-NiP@NF) are prepared via mild electroless plating. Heteroatoms doping or heterostructures construction can reconfigure the intrinsic electronic structure of the pre-catalyst and optimizes the key intermediates adsorption. Moreover, the (hypo/meta-)phosphite anions (PO<i><sub>x</sub></i><sup>δ−</sup>) and molybdate ions (MoO<i><sub>x</sub></i><sup>δ−</sup>) on the electrode surface of Mo-NiP@NF afford resistance to chloride (Cl<sup>−</sup>) corrosion. Mo-NiP@NF exhibits ultralow overpotentials of 278/550 and 282/590 mV at 1 A cm<sup>−2</sup> during the hydrogen/oxygen evolution reaction (HER/OER) in alkaline simulated and real seawater, respectively, whereas catalytic overall seawater splitting (OWS) reach 1 A cm<sup>−2</sup> at 1.96 and 1.97 V<sub>cell</sub>. Remarkably, Mo-NiP@NF maintains stable operation for 1500 h in OWS. The scalability of Mo-NiP@NF allowing the assembly of proton exchange membrane (PEM) electrolyzer powered by photovoltaic energy, simulating a portable hydrogen-oxygen respirator provides an oxygen/hydrogen flows of 160/320 mL min<sup>−1</sup>. Expanding further, the trace ruthenium-loaded Mo-NiP@NF catalyst sodium borohydride (NaBH<sub>4</sub>) hydrolysis achieving a hydrogen generation rate (HGR) of 11049.2 mL min<sup>−1</sup> g<sup>−1</sup>. This work provides strategic innovations and optimization solutions for the economical and mild construction of multi-scenario durable green energy conversion materials at industrial-scale application.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":null,"pages":null},"PeriodicalIF":24.4000,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Energy Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/aenm.202403009","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The construction of efficient and durable multifunctional electrodes for industrial-scale hydrogen production presents a main challenge. Herein, molybdenum-modulated phosphorus-based catalytic electrodes (Mo-NiP@NF) are prepared via mild electroless plating. Heteroatoms doping or heterostructures construction can reconfigure the intrinsic electronic structure of the pre-catalyst and optimizes the key intermediates adsorption. Moreover, the (hypo/meta-)phosphite anions (POxδ−) and molybdate ions (MoOxδ−) on the electrode surface of Mo-NiP@NF afford resistance to chloride (Cl−) corrosion. Mo-NiP@NF exhibits ultralow overpotentials of 278/550 and 282/590 mV at 1 A cm−2 during the hydrogen/oxygen evolution reaction (HER/OER) in alkaline simulated and real seawater, respectively, whereas catalytic overall seawater splitting (OWS) reach 1 A cm−2 at 1.96 and 1.97 Vcell. Remarkably, Mo-NiP@NF maintains stable operation for 1500 h in OWS. The scalability of Mo-NiP@NF allowing the assembly of proton exchange membrane (PEM) electrolyzer powered by photovoltaic energy, simulating a portable hydrogen-oxygen respirator provides an oxygen/hydrogen flows of 160/320 mL min−1. Expanding further, the trace ruthenium-loaded Mo-NiP@NF catalyst sodium borohydride (NaBH4) hydrolysis achieving a hydrogen generation rate (HGR) of 11049.2 mL min−1 g−1. This work provides strategic innovations and optimization solutions for the economical and mild construction of multi-scenario durable green energy conversion materials at industrial-scale application.
期刊介绍:
Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small.
With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics.
The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.