Highly stable all-in-one photoelectrochemical electrodes based on carbon nanowalls
Highly stable all-in-one photoelectrochemical electrodes based on carbon nanowalls
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基于碳纳米墙的高度稳定一体式光电化学电极
DOI：
10.1088/1361-6528/ab8cf5
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发表时间：
2020-04
期刊：
影响因子：
3.5
通讯作者：
Dapeng Wei
中科院分区：
文献类型：
--
作者：
Guilian Lan;Jinpeng Nong;Wei Wei;Xiangzhi Liu;Peng Luo;Weifeng Jin;Dacheng Wei;Dapeng Wei
光电化学（PEC）电池为开发低成本太阳能转换系统提供了一种有前途的方法。然而，缺乏稳定且具有成本效益的电极仍然是阻碍其实际应用的瓶颈。在这里，我们提出了一种集成的所有在一个三维（3D）的碳纳米管（CNW）电极稳定的全碳PEC电池没有敏化半导体。采用射频等离子体增强化学气相沉积法在SiO2/Si/SiO2晶片的两面直接生长碳纳米管，制备了一体化碳纳米管电极。得益于互连的3D纹理结构，CNW可以有效地吸收入射光，并在CNW表面提供大的电化学反应界面，促进光生载流子的分离，这使其成为上级电极材料。实验结果表明，一体化碳纳米管电极具有良好的光电转换性能，光电流密度为830 μA cm−2。此外，CNW电极在宽波段上表现出优异的光响应和上级稳定性，即使在60 d后也保持光电流响应，这优于使用其他二维层状材料或半导体敏化电极的电极。这种具有令人印象深刻的光伏特性的一体化电极为PEC应用提供了一个有前途的平台，该平台具有高效率、优异的稳定性和低成本的环保性。
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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影响因子：
3.5
作者：
Malesevic, Alexander;Vitchev, Roumen;Van Haesendonck, Chris
通讯作者：
Van Haesendonck, Chris
影响因子：
8.4
作者：
Xixi Xu;Dong Liu;Lijun Luo;Libo Li;Kun Wang;Tianyan You
通讯作者：
Xixi Xu;Dong Liu;Lijun Luo;Libo Li;Kun Wang;Tianyan You
基于CdS敏化氢化TiO2纳米棒阵列的可见光驱动光电化学测定Cu2
DOI：
10.1016/j.snb.2018.05.056
发表时间：
2018-10
期刊：
Sensors and Actuators B: Chemical
影响因子：
--
作者：
Yueping Fang
通讯作者：
Yueping Fang
影响因子：
5.4
作者：
Zhuo Zhang;Mingi Choi;Minki Baek;K. Yong
通讯作者：
Zhuo Zhang;Mingi Choi;Minki Baek;K. Yong
影响因子：
4
作者：
Yuan Yang;M. Ma;Lei Li;Wei Zhang;Cuiying Xiao;Shangwei Li;Yongxin Ma;D. Tao;Yunqiang Liu;Li Lin;Si-zhong Zhang
通讯作者：
Yuan Yang;M. Ma;Lei Li;Wei Zhang;Cuiying Xiao;Shangwei Li;Yongxin Ma;D. Tao;Yunqiang Liu;Li Lin;Si-zhong Zhang