NiCo2S4 microspheres grown on N, S co-doped reduced graphene oxide as an efficient bifunctional electrocatalyst for overall water splitting in alkaline and neutral pH

Li, Haoquan; Chen, Long; Jin, Pengfei; Li, Yafei; Pang, Jianxiang; Hou, Juan; Peng, Shanglong; Wang, Gang; Shi, Yulin

doi:10.1007/s12274-021-3580-z

Cited by 94 publications

(55 citation statements)

References 70 publications

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“…The contents of Fe and Ni in Fe/Ni-NBC are determined to be 2.98 and 0.44 wt% by using inductively coupled plasma-atomic emission spectroscopy (ICP-AES), respectively. The TOF values of Fe/Ni-NBC are obtained based on the variation of overpotentials, which are found to be comparable to many reported electrocatalysts, [37][38][39][40][41][42][43][44][45] thus corroborating the advantages in OER performance of the as-prepared catalyst (Figure 4g). The η 10 and Tafel slopes of Fe/Ni-NBC are compared with other reported transition metal catalysts (Table S7, Supporting Information), to obtain a more intuitive performance evaluation.…”

Section: Fabrication and Oer Performances Of Metal Incorporated Carbo...supporting

confidence: 81%

Metallopolymer Particle Engineering via Etching of Boronate Polymers toward High‐Performance Overall Water Splitting Catalysts

Hong

et al. 2022

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Metallopolymers combine the property features of both metallic compounds and organic polymers, representing a typical direction for the design of high‐performance hybrid materials. Here, a highly adaptive etching method to create pores and cavities in the metallopolymer particles is established. Starting from boronate polymer (BP) and inorganic@BP core–shell particles, porous, hollow, and yolk–shell metallopolymer particles can be fabricated, respectively. By taking advantage of the easy control over composition and pore/cavity structure, these metallopolymer particles provide a universal platform for the fabrication of nitrogen, boron co‐doped carbon nanocomposites loaded with metals (M‐NBCs). The as‐prepared M‐NBCs exhibit remarkable catalytic activities toward oxygen evolution reaction and hydrogen evolution reaction. An alkaline overall water splitting cell assembled by using M‐NBCs as the anode and cathode can be driven by a single AAA battery. The proposed strategy for the construction of metallopolymer composites may enlighten for the design of complex hybrid nanomaterials.

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Section: Fabrication and Oer Performances Of Metal Incorporated Carbo...supporting

confidence: 81%

Metallopolymer Particle Engineering via Etching of Boronate Polymers toward High‐Performance Overall Water Splitting Catalysts

Hong

et al. 2022

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“…[131][132][133] Much effort has been devoted to the rational engineering of the components and nanostructures of NCSs, 88,89,131,132,134,135 in order to further enlarge their reactive surface areas, improve their electrical conductivity and enhance their catalytic stability, ultimately synergistically strengthening their electrocatalytic performance. For example, nanorod assembled NiCo 2 S 4 microspheres were in situ planted onto N,S co-doped reduced graphene oxides, 136 which exhibited outstanding bifunctional electrocatalytic ability in the HER and OER with a low cell voltage of 1.58 V in 1 M KOH for overall water splitting. More impressively, they also had electrocatalytic capability in for enhanced electrocatalytic performance.…”

Section: Applications Of Ncss In Water Splittingmentioning

confidence: 99%

Recent advances in various applications of nickel cobalt sulfide-based materials

et al. 2022

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“…[ 47 ] The relative intensity ratio of D‐band to G‐band for CoP@PNC/PCWF is ≈1.12, which is greater than that of CoP@NC/CWF (0.57), suggesting that the carbon matrix of CoP@PNC/PCWF has a substantial number of defects. [ 48 ]…”

Section: Resultsmentioning

confidence: 99%

CoP Nanoparticle Confined in P, N Co‐Doped Porous Carbon Anchored on P‐Doped Carbonized Wood Fibers with Tailored Electronic Structure for Efficient Urea Electro‐Oxidation

Kang

Yang

Sheng

et al. 2022

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Electronic structure optimization and architecture modulation are widely regarded as rational strategies to enhance the electrocatalysts catalytic performance. Herein, a hybridization of ZIF‐67‐derived CoP nanoparticles embedded in P, N co‐doped carbon matrix (PNC) and anchored on P‐doped carbonized wood fibers (PCWF) is constructed using a simple simultaneous phosphorization and carbonization strategy. Benefiting from the optimized surface/interface electronic structures, abundant exposed active sites, and outstanding conductivity, the CoP@PNC/PCWF can drive the urea oxidation reaction (UOR) with greater activity and better stability than most recently reported electrocatalysts, in which a potential as low as 1.32 V (vs reversible hydrogen electrode, RHE) is needed to reach 50 mA cm‐2 and shows excellent durability. Furthermore, for overall urea splitting, using the CoP@PNC/PCWF electrocatalyst as the anode and commercial Pt/C supported on nickel foam as the cathode, an ultralow cell voltage of 1.50 V (vs RHE) is expected to achieve the 50 mA cm‐2 and operate continuously for more than 50 h at 20 mA cm‐2. The reported strategy may shed light on the use of renewable resources to design and synthesize high‐performance non‐Ni‐based phosphides UOR electrocatalysts for energy‐saving H2 production.

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NiCo2S4 microspheres grown on N, S co-doped reduced graphene oxide as an efficient bifunctional electrocatalyst for overall water splitting in alkaline and neutral pH

Cited by 94 publications

References 70 publications

Metallopolymer Particle Engineering via Etching of Boronate Polymers toward High‐Performance Overall Water Splitting Catalysts

Metallopolymer Particle Engineering via Etching of Boronate Polymers toward High‐Performance Overall Water Splitting Catalysts

Recent advances in various applications of nickel cobalt sulfide-based materials

CoP Nanoparticle Confined in P, N Co‐Doped Porous Carbon Anchored on P‐Doped Carbonized Wood Fibers with Tailored Electronic Structure for Efficient Urea Electro‐Oxidation

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