Recent advances in emerging single atom confined two-dimensional materials for water splitting applications

Alarawi, Abeer; Vinoth, R.; He, Jr‐Hau

doi:10.1016/j.mtener.2018.10.014

Cited by 202 publications

(136 citation statements)

References 135 publications

Supporting

Mentioning

134

Contrasting

Unclassified

Order By: Relevance

“…26,27 Graphene has shown remarkable properties in various eld of advanced technology since its discovery. 28 The attribute of graphene both as the source and sink for electrons has been well established and therefore can improve the interfacial charge transfer. 29 Further, graphene provides an excellent conducting path for generated electrons in the process of hydrogen evolution.…”

Section: Introductionmentioning

confidence: 99%

Vanadium doped few-layer ultrathin MoS₂ nanosheets on reduced graphene oxide for high-performance hydrogen evolution reaction

et al. 2019

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Vanadium doped few-layer ultrathin MoS₂ nanosheets on reduced graphene oxide for high-performance hydrogen evolution reaction

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The distortion‐induced lattice strain and the defects altering the local chemical environment can change the electronic states of a material and have been widely regarded as the origins of electrocatalytic activity 9e,71. Noticeably, the highly reactive surface makes chemical functionalization of 2D surfaces easier, and the vacancy types of defects can be advantageously used to induce dopants and generate 2DM©SAs (2D materials confining single atoms) as well as create pores/pits, alloys, and in‐plane hybrid nanostructure forms of electrocatalytically active sites (Figure b) . For instance, the engineering of anion vacancies/defects is readily achievable on different forms of nanomaterials, but the engineering of cation vacancies/defects is very difficult because of the sustantially higher energies required.…”

Section: Unique 2d Features For the Design Of 2d Electrocatalystsmentioning

confidence: 99%

2D Electrocatalysts for Converting Earth‐Abundant Simple Molecules into Value‐Added Commodity Chemicals: Recent Progress and Perspectives

et al. 2019

View full text Add to dashboard Cite

those emerging electrocatalytic redox reactions involving water, oxygen, and carbon dioxide as reactants. [7][8][9] The excellent progress achieved over the past decade has placed 2D electrocatalysts as one of the most important classes of nanostructured electrocatalysts. More significantly, 2D nanostructures are particularly useful for developing nonprecious-material-based electrocatalysts. For example, transition metal (TM) dichalcogenide (TMD)-based 2D nanomaterials have been used for water reduction to generate hydrogen via the hydrogen evolution reaction (HER). [10] In addition, 2D layered metal hydroxides (LMHs), [8d,11] layered metal oxides (LMO), [12] and 2D metal-organic frameworks (MOFs) [9c] have been developed for water oxidation to produce oxygen via the oxygen evolution reaction (OER). Graphene-based electrocatalysts have been used to achieve the 4-electron oxygen reduction reaction (ORR) [13] for fuel cells and the 2-electron oxygen reduction reaction (2e-ORR) [14] to produce hydrogen peroxide. Furthermore, ultrathin metal oxides [9b,15] or metal nanosheets, [16] TMDs, [9d,17] MXenes, [18] and 2D MOFs [19] have successfully been applied to convert nitrogen and carbon dioxide into ammonia and carbon fuels via the nitrogen reduction reaction (NRR) and carbon dioxide reduction reaction (CO 2 RR). The great success of nonprecious 2D electrocatalysts in a short time is due mainly to the unique 2D features that allow for the easy manipulation and engineering 2D nanostructures into catalytically active structures. As an emerging class of electrocatalysts, there are still several unexplored scientific domains and unrealized application potentials for 2D electrocatalysts. This aspect added to their unique 2D features and their advantages in creating catalytically active structures will continuously attract and motivate further research activities in the catalysis field. Meanwhile, a timely review on 2D electrocatalysts would undoubtedly facilitate this future research.The design, controllable synthesis, and applications of various types of 2D nanomaterials have been comprehensively covered by numerous excellent reviews. [2d,e,5] A number of excellent reviews on 2D electrocatalysts can also be found in the literature. [10a,20-23] However, these reviews focused on the development of 2D electrocatalysts for extensively reported energy-related applications such as the HER, OER, and ORR. In recent years, 2D electrocatalysts have increasingly been usedThe electrocatalytic conversion of earth-abundant simple molecules into value-added commodity chemicals can transform current chemical production regimes with enormous socioeconomic and environmental benefits. For these applications, 2D electrocatalysts have emerged as a new class of high-performance electrocatalyst with massive forward-looking potential. Recent advances in 2D electrocatalysts are reviewed for emerging applications that utilize naturally existing H 2 O, N 2 , O 2 , Cl − (seawater) and CH 4 (natural gas) as reactants for nitrogen reduction...

show abstract

“…Photocatalytic pathway for the production of H 2 from water has been studied extensively because it provides an alternative pathway to replace existing fossil fuels and offers a high energy density H 2 fuel . Various heterogeneous photocatalysts, particularly noble metals‐based metal oxides semiconductors have been utilized for the efficient photocatalytic H 2 production . However, inadequate earth abundance and a high cost of noble metals, such as Pt, Au, and Pd limit further development of large‐scale system .…”

Section: Introductionmentioning

confidence: 99%

Amine Functionalized Metal–Organic Framework Coordinated with Transition Metal Ions: d–d Transition Enhanced Optical Absorption and Role of Transition Metal Sites on Solar Light Driven H₂ Production

Karthik

Neppolian

Vinu

et al. 2019

Small

View full text Add to dashboard Cite

Design and development of efficient photocatalysts for H2 production from water and sunlight have gained significant attention as the solar assisted approach is considered to be a promising approach for the generation of clean fuel. However, the poor charge carrier separation and light harvesting ability of existing photocatalysts limits the efficiency of photoconversion of water. In this work, the synthesis of transition metal ions (M2+ = Co2+, Cu2+, and Ni2+) coordinated with Ti‐metal organic frameworks (Ti‐MOFs) through a simple post‐synthetic coordination method for efficient solar light‐driven H2 production is reported. Notably, coordination of M2+ ions with Ti‐MOF significantly improves the optical absorption by d–d transitions and the multimetal sites facilitate the fast charge carrier separation, thereby enhancing the solar light‐driven H2 production activity. Very interestingly, the rate of solar light‐driven H2 production is varied with respect to different metal ions coordination due to the position of d–d bands absorption in the solar spectrum, and the complexing tendency of M2+ ions with sacrificial electron donors. A maximum solar H2 production rate of 1583.55 µmol h−1 g−1 is achieved with a Cu2+ coordinated Ti‐MOF, which is ≈13 fold higher than that of the pristine Ti‐MOF.

show abstract

Recent advances in emerging single atom confined two-dimensional materials for water splitting applications

Cited by 202 publications

References 135 publications

Vanadium doped few-layer ultrathin MoS₂ nanosheets on reduced graphene oxide for high-performance hydrogen evolution reaction

Vanadium doped few-layer ultrathin MoS₂ nanosheets on reduced graphene oxide for high-performance hydrogen evolution reaction

2D Electrocatalysts for Converting Earth‐Abundant Simple Molecules into Value‐Added Commodity Chemicals: Recent Progress and Perspectives

Amine Functionalized Metal–Organic Framework Coordinated with Transition Metal Ions: d–d Transition Enhanced Optical Absorption and Role of Transition Metal Sites on Solar Light Driven H₂ Production

Contact Info

Product

Resources

About

Recent advances in emerging single atom confined two-dimensional materials for water splitting applications

Cited by 202 publications

References 135 publications

Vanadium doped few-layer ultrathin MoS2 nanosheets on reduced graphene oxide for high-performance hydrogen evolution reaction

Vanadium doped few-layer ultrathin MoS2 nanosheets on reduced graphene oxide for high-performance hydrogen evolution reaction

2D Electrocatalysts for Converting Earth‐Abundant Simple Molecules into Value‐Added Commodity Chemicals: Recent Progress and Perspectives

Amine Functionalized Metal–Organic Framework Coordinated with Transition Metal Ions: d–d Transition Enhanced Optical Absorption and Role of Transition Metal Sites on Solar Light Driven H2 Production

Contact Info

Product

Resources

About

Vanadium doped few-layer ultrathin MoS₂ nanosheets on reduced graphene oxide for high-performance hydrogen evolution reaction

Vanadium doped few-layer ultrathin MoS₂ nanosheets on reduced graphene oxide for high-performance hydrogen evolution reaction

Amine Functionalized Metal–Organic Framework Coordinated with Transition Metal Ions: d–d Transition Enhanced Optical Absorption and Role of Transition Metal Sites on Solar Light Driven H₂ Production