A New Graphdiyne Nanosheet/Pt Nanoparticle‐Based Counter Electrode Material with Enhanced Catalytic Activity for Dye‐Sensitized Solar Cells

Ren, Hao; Shao, Hui; Zhang, Lijuan; Guo, Dong; Jin, Quan; Yu, Rong; Wang, Lei; Li, Yuliang; Wang, Yun; Zhao, Huijun; Wang, Dan

doi:10.1002/aenm.201500296

Cited by 193 publications

(104 citation statements)

References 48 publications

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“…Earth-abundant elementbased electrocatalysts, [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] such as transition-metal oxides, carbides, sulfides, phosphides, and graphdiyne, are promising alternatives to precious electrocatalysts. RuO 2 /IrO 2 and Pt-based materials are currently considered as the state-ofthe-art electrocatalysts for OER in alkaline conditions and HER in acidic conditions, respectively.…”

mentioning

confidence: 99%

Multifunctional Single‐Crystallized Carbonate Hydroxides as Highly Efficient Electrocatalyst for Full Water splitting

Hui

Xue

Jia

et al. 2018

Advanced Energy Materials

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111

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η) are thus needed to drive these reactions. RuO 2 /IrO 2 and Pt-based materials are currently considered as the state-ofthe-art electrocatalysts for OER in alkaline conditions and HER in acidic conditions, respectively. But their high cost and scarcity hinder their practical uses. Another important aspect, researchers expect that electrocatalysts are able to work in the same alkaline media for both OER and HER processes to achieve superior FWS performances. Earth-abundant elementbased electrocatalysts, [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] such as transition-metal oxides, carbides, sulfides, phosphides, and graphdiyne, are promising alternatives to precious electrocatalysts. However, most of them are effective for OER, but very inactive to HER in alkaline condition and vice versa. We can find that there is still a lack of low cost, high efficiency bifunctional OER/HER electrocatalysts in practical applications.Transition metal carbonate hydroxides (TMCHs) are a class of layered materials, which comprised of positive-charged cations and intercalated anions in the interlayer region. [15][16][17][18] Such structure has rich redox properties and high accessibility to electrolyte, providing a very interesting possibility in developing electrocatalysts with efficient electrocatalytic activities. However, because of its low conductivity, only very limited focus has been put on the electrocatalytic behavior of TMCHs. For example, cobalt carbonate hydroxide microspheres required 466 mV, [15] cobalt carbonate hydroxide on carbon black required 509 mV, [16] and cobalt carbonate hydroxide superstructures on carbon paper needed 240 mV [17] to deliver 10 mA cm −2 , respectively. Obviously, the electrocatalytic activities of the reported TMCHs are still far from practical applications. Making the TMCHs with excellent electrocatalytic activities and stabilities is therefore of great significance.The first-row (3d) TMs (e.g., Co and Fe) are promising candidates for precious catalysts. For TM hydroxides, the cations on the surface are considered to be the active sites during the catalytic processes. The introduction of dopants or changing of the M 2+ /M 3+ molar ratios have been reported to effectively tune the electronic structure and lead to optimal adsorption energies toward higher electrocatalytic activity. [4,19,20] Recently, Zhang et al. reported that the OH adsorption energy was either too weak on CoOOH(01-12) surface or too strong on FeOOH(010) surface. [4] After being doped with Fe, the OH adsorption energy was reduced by ≈50% compared with the unary CoOOH(01-12)The controllable synthesis of single-crystallized iron-cobalt carbonate hydroxide nanosheets array on 3D conductive Ni foam (FCCH/NF) as a monolithic oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) bifunctional electrocatalyst for full water splitting is described. The results demonstrate that the incorporation of Fe can effectively tune the morphology, composition, electronic structure, and electrochemical active surface ...

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confidence: 99%

Multifunctional Single‐Crystallized Carbonate Hydroxides as Highly Efficient Electrocatalyst for Full Water splitting

Hui

Xue

Jia

et al. 2018

Advanced Energy Materials

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111

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“…4 demonstrates EIS Nyquist plots of all the tested photoelectrode samples 1-5 and Co-2TPABTz. Via comparison of the different samples, composite 3 exhibited the smallest arch diameter, which suggested the fastest interfacial electron transfer [68]. Similarly, combining with Ag NPs could effectively accelerate the electron mobility by suppressing the recombination of photo-generated carriers [69].…”

Section: Photoelectrochemical Performancementioning

confidence: 95%

Silver nanoparticles-sensitized cobalt complex for highly-efficient photocatalytic activity

Huo

Zeng

2016

Applied Catalysis B: Environmental

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“…Carbon materials, particularly graphene and carbon nanotubes, which have the same sp 2 hybridization state, are promising candidates for the development of high-performance catalysts because of their unique structures with a large specific surface area [14][15][16][17][18]. Liu and co-workers [19] prepared Pt NPs supported on multiwall carbon nanotubes (MWCNTs), which exhibited excellent activity for the solvent-free hydrogenation of NB to AN at a pressure of 2.0 MPa.…”

Section: Introductionmentioning

confidence: 99%

In situ thermolysis of Pt-carbonyl complex to form supported clean Pt nanoclusters with enhanced catalytic performance

Wei

Zhao

et al. 2017

Sci. China Mater.

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at 25°C and 1 atm. This number is higher than the previously reported value for the heterogeneously catalyzed hydrogenation of nitrobenzene. The proposed process follows a direct hydrogenation mechanism, as is revealed by the analyses of the intermediate products. This work presents a facile and effective synthetic approach for achieving highly efficient nanocatalysts, and can be extended to obtain other metal catalysts with ultra-small sizes and excellent performance.

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A New Graphdiyne Nanosheet/Pt Nanoparticle‐Based Counter Electrode Material with Enhanced Catalytic Activity for Dye‐Sensitized Solar Cells

Cited by 193 publications

References 48 publications

Multifunctional Single‐Crystallized Carbonate Hydroxides as Highly Efficient Electrocatalyst for Full Water splitting

Multifunctional Single‐Crystallized Carbonate Hydroxides as Highly Efficient Electrocatalyst for Full Water splitting

Silver nanoparticles-sensitized cobalt complex for highly-efficient photocatalytic activity

In situ thermolysis of Pt-carbonyl complex to form supported clean Pt nanoclusters with enhanced catalytic performance

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