CdS nanowire-modified 3D graphene foam for high-performance photo-electrochemical anode

Nong, Jinpeng; Liu, Dun; Wei, Wei; Li, Chun; Yang, Jun; Sun, Tai; Yu, Linfeng; Shi, Haofei; Du, Chunlei; Wei, Dapeng

doi:10.1016/j.jallcom.2016.06.260

Cited by 9 publications

(2 citation statements)

References 25 publications

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“…The PEC performance of the proposed all-carbon PEC cell is also compared with that of the other kinds of PEC cells with different electrode materials reported recently, as summarized in table 1. Obviously, the photocurrent density of the proposed all-carbon PEC cell is much larger than that of the cells using the 2D layered materials [45][46][47][48] or semiconductor sensitized carbon material electrodes [25,26,28,[49][50][51]. Furthermore, even though without sensitized semiconductors, this value is still comparable to those cells using the widely used metal oxide semiconductor sensitized with quantum dots as the photoanode materials [12,51,52].…”

Section: Performance Of the All-carbon Pec Cellmentioning

confidence: 82%

“…We want to highlight that the proposed all-in-one CNW electrode has four distinguishing features, though the carbon nanomaterials have been widely used as electrode materials with improved PEC performance, such as carbon nanotubes (CNTs) [23], graphene [24], reduced graphene oxide (rGO) [25], graphene aerogel [26], porous graphene [27], graphene foam [28], and honeycomb-like graphene [29]. (i) It can be directly used as the photoanode and counter electrode simultaneously, while the reported carbon electrodes are solely used as either the photoanode or counter electrode.…”

Section: Introductionmentioning

confidence: 99%

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Highly stable all-in-one photoelectrochemical electrodes based on carbon nanowalls

Lan¹,

Nong²,

Wei³

et al. 2020

Nanotechnology

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Photoelectrochemical (PEC) cells offer a promising approach for developing low-cost solar energy conversion systems. However, the lack of stable and cost-effective electrodes remains a bottleneck that hampers their practical applications. Here, we propose a kind of integrated all-in-one three-dimensional (3D) carbon nanowall (CNW) electrode without sensitized semiconductors for stable all-carbon PEC cells. The all-in-one CNW electrodes were fabricated by directly growing CNW on both sides of the SiO2/Si/SiO2 wafer employing the radio frequency plasmon enhanced chemical vapor deposition method. Benefitting from the interconnected 3D textured structure, the CNW can effectively absorb the incident light and provide a large electrochemical reaction interface at the CNW surface that promotes the separation of photogenerated charge carriers, which makes it a superior electrode material. Experimental results show that the all-in-one CNW electrodes possess excellent PEC performance with a photocurrent density of 830 μA cm−2. Moreover, the CNW electrodes exhibit excellent photoresponses over a wide waveband and superior stability with a maintained photocurrent response, even after 60 d, which outperforms the electrodes using the other two-dimensional layered materials or semiconductor sensitized electrodes. Such an all-in-one electrode with impressive photovoltaic properties provides a promising platform for PEC applications that is eco-friendly with high efficiency, excellent stability and low cost.

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