Nano Energy, Год журнала: 2017, Номер 44, С. 181 - 190
Опубликована: Дек. 6, 2017
Язык: Английский
Chemical Society Reviews, Год журнала: 2020, Номер 49(7), С. 2196 - 2214
Опубликована: Янв. 1, 2020
The fundamentals related to the oxygen evolution reaction and catalyst design are summarized discussed.
Язык: Английский
Процитировано
2114
Nano Energy, Год журнала: 2017, Номер 37, С. 136 - 157
Опубликована: Май 10, 2017
Язык: Английский
Процитировано
1484
Advanced Materials, Год журнала: 2017, Номер 29(48)
Опубликована: Май 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.
Язык: Английский
Процитировано
1478
Advanced Materials, Год журнала: 2021, Номер 33(31)
Опубликована: Июнь 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.
Язык: Английский
Процитировано
1403
Energy & Environmental Science, Год журнала: 2019, Номер 12(9), С. 2620 - 2645
Опубликована: Янв. 1, 2019
Alkaline water splitting is an attractive method for sustainable hydrogen production.
Язык: Английский
Процитировано
1383
Nature Energy, Год журнала: 2019, Номер 4(4), С. 329 - 338
Опубликована: Март 25, 2019
Язык: Английский
Процитировано
1381
Advanced Materials, Год журнала: 2019, Номер 31(17)
Опубликована: Фев. 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.
Язык: Английский
Процитировано
1208
Journal of the American Chemical Society, Год журнала: 2017, Номер 139(9), С. 3336 - 3339
Опубликована: Фев. 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.
Язык: Английский
Процитировано
1180
ACS Catalysis, Год журнала: 2017, Номер 7(10), С. 7196 - 7225
Опубликована: Сен. 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.
Язык: Английский
Процитировано
1035
Advanced Functional Materials, Год журнала: 2018, Номер 28(14)
Опубликована: Янв. 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.
Язык: Английский
Процитировано
850