NiFe‐Based Metal–Organic Framework Nanosheets Directly Supported on Nickel Foam Acting as Robust Electrodes for Electrochemical Oxygen Evolution Reaction DOI

Fengzhan Sun,

Guo Wang,

Yongqi Ding

et al.

Advanced Energy Materials, Journal Year: 2018, Volume and Issue: 8(21)

Published: May 9, 2018

Abstract It is of great significance to develop highly efficient and superior stable oxygen evolution reaction (OER) electrocatalysts for upcoming electrochemical conversion technologies clean energy systems. Here, an assembled 3D electrode synthesized by a one‐step solvothermal process using such original OER electrocatalyst. During the process, Ni ions released from foam in acidic solution Fe added exogenously act as metal centers coordinate with terephthalic acid (TPA) organic molecules robust bonds, finally, NiFe‐based metal–organic framework (MOF) nanosheets situ grown on foam, i.e., MIL‐53(FeNi)/NF, are prepared. This binder‐free shows activity high current density (50 mA cm −2 ) at overpotential 233 mV, Tafel slope 31.3 mV dec −1 , excellent stability alkaline aqueous (1 m KOH). discovered that introduction into MIL‐53 structure increases electrochemically‐active areas well sites, accelerated electron transport capability, modulated electronic enhance catalytic performance. Besides, first principles calculations show MIL‐53(FeNi) more favorable foreign atoms' adsorption has increased 3d orbital boosting intrinsic activity. work elucidates promising enriches direct application MOF materials.

Language: Английский

A review on fundamentals for designing oxygen evolution electrocatalysts DOI
Jiajia Song, Chao Wei, Zhen‐Feng Huang

et al.

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(7), P. 2196 - 2214

Published: Jan. 1, 2020

The fundamentals related to the oxygen evolution reaction and catalyst design are summarized discussed.

Language: Английский

Citations

2088
Electrocatalytic oxygen evolution reaction for energy conversion and storage: A comprehensive review DOI
Muhammad Tahir, Lun Pan, Faryal Idrees

et al.

Nano Energy, Journal Year: 2017, Volume and Issue: 37, P. 136 - 157

Published: May 10, 2017

Language: Английский

Citations

1474
Defect Chemistry of Nonprecious‐Metal Electrocatalysts for Oxygen Reactions DOI
Dafeng Yan,

Yunxiao Li,

Jia Huo

et al.

Advanced Materials, Journal Year: 2017, Volume and Issue: 29(48)

Published: May 16, 2017

Abstract Oxygen electrocatalysis, including the oxygen‐reduction reaction (ORR) and oxygen‐evolution (OER), is a critical process for metal–air batteries. Therefore, development of electrocatalysts OER ORR essential importance. Indeed, various advanced have been designed or OER; however, origin activity oxygen still somewhat controversial. The enhanced usually attributed to high surface areas, unique facet structures, conductivities, even unclear synergistic effects, but importance defects, especially intrinsic often neglected. More recently, important role defects in electrocatalysis has demonstrated by several groups. To make defect effect clearer, recent this concept reviewed here novel principle design proposed. An overview carbon‐based, metal‐free metal oxides/selenides also provided. types controllable strategies generate are presented, along with techniques identify defects. defect–activity relationship explored theoretical methods.

Language: Английский

Citations

1473
Clean and Affordable Hydrogen Fuel from Alkaline Water Splitting: Past, Recent Progress, and Future Prospects DOI
Ziyou Yu, Yu Duan, Xingyu Feng

et al.

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(31)

Published: June 12, 2021

Abstract Hydrogen economy has emerged as a very promising alternative to the current hydrocarbon economy, which involves process of harvesting renewable energy split water into hydrogen and oxygen then further utilization clean fuel. The production by electrolysis is an essential prerequisite with zero carbon emission. Among various technologies, alkaline splitting been commercialized for more than 100 years, representing most mature economic technology. Here, historic development overviewed, several critical electrochemical parameters are discussed. After that, advanced nonprecious metal electrocatalysts that recently negotiating evolution reaction (OER) (HER) discussed, including transition oxides, (oxy)hydroxides, chalcogenides, phosphides, nitrides OER, well alloys, carbides HER. In this section, particular attention paid catalyst synthesis, activity stability challenges, performance improvement, industry‐relevant developments. Some recent works about scaled‐up novel electrode designs, seawater also spotlighted. Finally, outlook on future challenges opportunities offered, potential directions speculated.

Language: Английский

Citations

1383
Recent progress made in the mechanism comprehension and design of electrocatalysts for alkaline water splitting DOI

Congling Hu,

Lei Zhang, Jinlong Gong

et al.

Energy & Environmental Science, Journal Year: 2019, Volume and Issue: 12(9), P. 2620 - 2645

Published: Jan. 1, 2019

Alkaline water splitting is an attractive method for sustainable hydrogen production.

Language: Английский

Citations

1380
Chemical and structural origin of lattice oxygen oxidation in Co–Zn oxyhydroxide oxygen evolution electrocatalysts DOI
Zhen‐Feng Huang, Jiajia Song, Yonghua Du

et al.

Nature Energy, Journal Year: 2019, Volume and Issue: 4(4), P. 329 - 338

Published: March 25, 2019

Language: Английский

Citations

1369
Nanoarchitectonics for Transition‐Metal‐Sulfide‐Based Electrocatalysts for Water Splitting DOI
Yanna Guo, Teahoon Park, Jin‐Woo Yi

et al.

Advanced Materials, Journal Year: 2019, Volume and Issue: 31(17)

Published: Feb. 21, 2019

Abstract Heterogenous electrocatalysts based on transition metal sulfides (TMS) are being actively explored in renewable energy research because nanostructured forms support high intrinsic activities for both the hydrogen evolution reaction (HER) and oxygen (OER). Herein, it is described how researchers working to improve performance of TMS‐based materials by manipulating their internal external nanoarchitectures. A general introduction water‐splitting initially provided explain most important parameters accessing catalytic nanomaterials catalysts. Later, synthetic methods used prepare explained order delve into various strategies achieve higher electrocatalytic HER. Complementary can be increase OER TMS, resulting bifunctional HER OER. Finally, current challenges future opportunities TMS context water splitting summarized. The aim herein provide insights gathered process studying describe valuable guidelines engineering other kinds nanomaterial catalysts conversion storage technologies.

Language: Английский

Citations

1203
Molecule-Level g-C3N4 Coordinated Transition Metals as a New Class of Electrocatalysts for Oxygen Electrode Reactions DOI
Yao Zheng, Yan Jiao, Yihan Zhu

et al.

Journal of the American Chemical Society, Journal Year: 2017, Volume and Issue: 139(9), P. 3336 - 3339

Published: Feb. 21, 2017

Organometallic complexes with metal–nitrogen/carbon (M–N/C) coordination are the most important alternatives to precious metal catalysts for oxygen reduction and evolution reactions (ORR OER) in energy conversion devices. Here, we designed developed a range of molecule-level graphitic carbon nitride (g-C3N4) coordinated transition metals (M–C3N4) as new generation M–N/C these electrode reactions. As proof-of-concept example, conducted theoretical evaluation experimental validation on cobalt–C3N4 catalyst desired molecular configuration, which possesses comparable electrocatalytic activity that benchmarks ORR OER alkaline media. The correlation computational results confirms this high originates from precise M–N2 g-C3N4 matrix. Moreover, reversible ORR/OER trend wide variety M−C3N4 has been constructed provide guidance design promising class catalysts.

Language: Английский

Citations

1180
Nickel-Based Electrocatalysts for Energy-Related Applications: Oxygen Reduction, Oxygen Evolution, and Hydrogen Evolution Reactions DOI

Varun Vij,

Siraj Sultan,

Ahmad M. Harzandi

et al.

ACS Catalysis, Journal Year: 2017, Volume and Issue: 7(10), P. 7196 - 7225

Published: Sept. 6, 2017

The persistently increasing energy consumption and the low abundance of conventional fuels have raised serious concerns all over world. Thus, development technology for clean-energy production has become major research priority worldwide. globalization advanced conversion technologies like rechargeable metal–air batteries, regenerated fuel cells, water-splitting devices been majorly benefitted by apposite catalytic materials that can proficiently carry out pertinent electrochemical processes oxygen reduction reaction (ORR), evolution (OER), hydrogen (HER), water hydrolysis. Despite a handful superbly performing commercial catalysts, high cost stability precursors consistently discouraged their long-term viability. As promising substitute platinum-, palladium-, iridium-, gold-, silver-, ruthenium-based various transition-metal (TM) ions (for example, Fe, Co, Mo, Ni, V, Cu, etc.) exploited to develop electroactive outperform state-of-the-art properties. Among these TMs, nickel emerged as one most hopeful constituents due its exciting electronic properties anticipated synergistic effect dramatically alter surface favor electrocatalysis. This review article will broadly confer about recent reports on nickel-based nanoarchitectured applications toward ORR, OER, HER, whole splitting. On basis derivatives, futuristic outlook also presented.

Language: Английский

Citations

1030
Bifunctional Heterostructure Assembly of NiFe LDH Nanosheets on NiCoP Nanowires for Highly Efficient and Stable Overall Water Splitting DOI
Haojie Zhang, Xiaopeng Li,

Angelika Hähnel

et al.

Advanced Functional Materials, Journal Year: 2018, Volume and Issue: 28(14)

Published: Jan. 31, 2018

Abstract 3D hierarchical heterostructure NiFe LDH@NiCoP/NF electrodes are prepared successfully on nickel foam with special interface engineering and synergistic effects. This research finds that the as‐prepared have a more sophisticated inner structure intensive than simple physical mixture. The require an overpotential as low 120 220 mV to deliver 10 mA cm −2 for hydrogen evolution reaction (HER) oxygen (OER) in 1 m KOH, respectively. Tafel electrochemical impedance spectroscopy further reveal favorable kinetic during electrolysis. Specifically, simultaneously used cathode anode overall water splitting, which requires cell voltage of 1.57 V at . Furthermore, effect improves structural stability promotes generation active phases HER OER, resulting excellent over 100 h continuous operation. Moreover, strategy introduced can also be prepare other bifunctional cost‐efficient electrocatalysts various applications.

Language: Английский

Citations

847