Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 464, P. 214544 - 214544
Published: April 8, 2022
Language: Английский
Advanced Materials, Journal Year: 2021, Volume and Issue: 34(11)
Published: Nov. 30, 2021
Design and construction of low-cost electrocatalysts with high catalytic activity long-term stability is a challenging task in the field catalysis. Metal-organic frameworks (MOF) are promising candidates as precursor materials development highly efficient for energy conversion storage applications. This review starts summary basic concepts key evaluation parameters involved electrochemical water-splitting reaction. Then, different synthesis approaches reported cobalt-based Zeolitic imidazolate framework (ZIF-67) its derivatives critically reviewed. Additionally, several strategies employed to enhance electrocatalytic ZIF-67-based discussed detail. The present provides succinct insight into ZIF-67 (oxides, hydroxides, sulfides, selenides, phosphide, nitrides, telluride, heteroatom/metal-doped carbon, noble metal-supported derivatives) oxygen evolution reaction (OER), hydrogen (HER), overall water splitting Finally, this concludes associated challenges perspectives on developing best economic, durable materials.
Language: Английский
Citations
322
Advanced Materials, Journal Year: 2020, Volume and Issue: 32(8)
Published: Jan. 19, 2020
The efficiency of splitting water into hydrogen and oxygen is highly dependent on the catalyst used. Herein, ultrathin Ni(0)-embedded Ni(OH)2 heterostructured nanosheets, referred to as Ni/Ni(OH)2 with superior activity are synthesized by a partial reduction strategy. This synthetic strategy confers nanosheets abundant Ni(0)-Ni(II) active interfaces for evolution reaction (HER) Ni(II) defects transitional sites (OER). obtained exhibit noble metal-like electrocatalytic activities toward overall in alkaline condition, offer 10 mA cm-2 HER OER, required overpotentials only 77 270 mV, respectively. Based such an outstanding activity, electrolysis cell using cathode anode electrocatalysts has been successfully built. When output voltage electrolytic 1.59 V, current density can be obtained. Moreover, durability electrolyte much better than that metals. No obvious performance decay observed after 20 h catalysis. facile paves way designing non-precious-metal generate both electrolyzing at room temperature.
Language: Английский
Citations
317
Journal of Materials Chemistry A, Journal Year: 2020, Volume and Issue: 9(3), P. 1314 - 1352
Published: Nov. 14, 2020
The
nature
of
LDH-based
nanostructures
and
their
role
in
the
OER
are
explored,
along
with
synthetic
methods
to
formulate
different
structures
Language: Английский
Citations
317
Nano Energy, Journal Year: 2020, Volume and Issue: 80, P. 105545 - 105545
Published: Oct. 28, 2020
Language: Английский
Citations
304
Angewandte Chemie International Edition, Journal Year: 2020, Volume and Issue: 60(12), P. 6673 - 6681
Published: Dec. 18, 2020
Abstract Herein, we present a new strategy for the synthesis of 2D porous MoP/Mo 2 N heterojunction nanosheets based on pyrolysis [PMo 12 O 40 ] 3− ‐melamine (PMo ‐MA) nanosheet precursor from polyethylene glycol (PEG)‐mediated assembly route. The heterostructure are ca. 20 nm thick and have plentiful pores (<5 nm). These structure features offer advantages to promote HER activity, including favorable water dissociation kinetics around as confirmed by theoretical calculations, large accessible surface nanosheets, enhanced mass‐transport ability pores. Consequently, exhibit excellent activity with low overpotentials 89, 91 89 mV achieve current density 10 mA cm −2 in alkaline, neutral acidic electrolytes, respectively. performance is superior commercial Pt/C at >55 medium >190 alkaline medium.
Language: Английский
Citations
289
Journal of Alloys and Compounds, Journal Year: 2019, Volume and Issue: 821, P. 153542 - 153542
Published: Dec. 26, 2019
Language: Английский
Citations
270
Advanced Science, Journal Year: 2020, Volume and Issue: 7(5)
Published: Jan. 23, 2020
Water electrolysis is an emerging energy conversion technology, which significant for efficient hydrogen (H2) production. Based on the high-activity transition metal ions and alloys of ultrastable bifunctional catalyst, evolution reaction (HER) oxygen (OER) are key to achieving method by overall water splitting (OWS). This study reports that Co-based coordination polymer (ZIF-67) anchoring indium-organic framework (InOF-1) composite (InOF-1@ZIF-67) treated followed carbonization phosphorization successfully obtain CoP nanoparticles-embedded carbon nanotubes nitrogen-doped materials (CoP-InNC@CNT). As HER OER electrocatalysts, it demonstrated CoP-InNC@CNT simultaneously exhibit high performance (overpotential 153 mV in 0.5 m H2SO4 159 1.0 KOH) 270 activities reach current density 10 mA cm-2. In addition, these rods, as a cathode anode, can display excellent OWS with η10 = 1.58 V better stability, shows satisfying electrocatalyst compared control materials. ensures tight uniform growth fast nucleating stable substrate be further applied practical electrochemical reactions.
Language: Английский
Citations
259
Angewandte Chemie International Edition, Journal Year: 2020, Volume and Issue: 59(47), P. 21106 - 21113
Published: Aug. 7, 2020
Abstract Water electrolysis offers a promising green technology to tackle the global energy and environmental crisis, but its efficiency is greatly limited by sluggish reaction kinetics of both cathodic hydrogen evolution (HER) anodic oxygen (OER). In this work, growing amorphous multi‐transition‐metal (cobalt iron) oxide on two‐dimensional (2D) black phosphorus (BP), we develop bifunctional electrocatalyst (CoFeO@BP), which able efficiently catalyze HER OER. The overpotentials for hybrid CoFeO@BP catalyst reach current density 10 mA cm −2 in 1 m KOH are 88 266 mV OER, respectively. Based series ex‐situ situ investigations, excellent catalytic performance found result from adaptive surface structure under reduction oxidation potentials. can be transformed CoFe phosphide potential, generating real active HER.
Language: Английский
Citations
238
Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 3694 - 3812
Published: March 22, 2024
Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts the two half-reactions of (e.g., and oxygen evolution reactions, HER OER) separately, there growing interest designing bifunctional electrocatalysts, which are able to catalyze both OER. In addition, considering high overpotentials required OER while limited value produced oxygen, is another rapidly exploring alternative oxidation reactions replace hybrid toward energy-efficient generation. This Review begins with an introduction on fundamental aspects splitting, followed thorough discussion various physicochemical characterization techniques that frequently employed probing active sites, emphasis reconstruction during redox electrolysis. The design, synthesis, performance diverse based noble metals, nonprecious metal-free nanocarbons, overall acidic alkaline electrolytes, thoroughly summarized compared. Next, their application also presented, wherein anodic include sacrificing agents oxidation, pollutants oxidative degradation, organics upgrading. Finally, concise statement current challenges future opportunities presented hope guiding endeavors quest sustainable
Language: Английский
Citations
229
Applied Catalysis B Environment and Energy, Journal Year: 2019, Volume and Issue: 265, P. 118555 - 118555
Published: Dec. 23, 2019
Language: Английский
Citations
205