High yield of H2O2 and efficient S recovery from toxic H2S splitting through a self-driven photoelectrocatalytic system with a microporous GDE cathode
High yield of H2O2 and efficient S recovery from toxic H2S splitting through a self-driven photoelectrocatalytic system with a microporous GDE cathode
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通过具有微孔 GDE 阴极的自驱动光电催化系统，H2O2 产率高，并从有毒 H2S 分解中高效回收 S
DOI：
10.1016/j.apcatb.2018.07.051
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发表时间：
2018-12
期刊：
影响因子：
--
通讯作者：
Zhou Baoxue
中科院分区：
文献类型：
--
作者：
Qiao Li;Bai Jing;Luo Tao;Li Jinhua;Zhang Yan;Xia Ligang;Zhou Tingsheng;Xu Qunjie;Zhou Baoxue
In this paper, the toxic H2S was transformed efficiently into valuable S and H2O2and its chemical reaction energy was converted into electric energy through a self-driven photoelectrocatalytic(PEC) system, which consisted of a microporous gas diffusion electrode(GDE) and a self-bias photoanode. In the cathode region, high yield of H2O2up to 0.8 mmol/L/h, was achieved because of the fast gas diffusion and direct two-electron reduction of molecular oxygen on the microporous GDE cathode. In the anodic region, H2S was completely converted into S without persulfide based on a I−/I3−redox system and the production rate of S recovery was about 0.60 mmol/h, 42 times higher than before. The remarkable catalytic efficiency also benefited from the self-bias design of photoanode, which included a front photoanode of WO3and a rear Si photovoltaic cell (Si PVC). The constituted self-driven PEC system could accelerate the charges separation and increase the electron transfer rate of PEC cell. In addition, electricity was generated simultaneously, with a maximum power density of 0.19 mW/cm2. The proposed self-driven PEC cell system offers an efficient, complete and sustainable way for H2S resourcization.
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影响因子：
32.5
作者：
Xu Zong;Hongjun Chen;B. Seger;T. Pedersen;M. Dargusch;E. McFarland;Can Li;Lianzhou Wang
通讯作者：
Xu Zong;Hongjun Chen;B. Seger;T. Pedersen;M. Dargusch;E. McFarland;Can Li;Lianzhou Wang
影响因子：
10.9
作者：
Valim, Ricardo B.;Reis, Rafael M.;Lanza, Marcos R. V.
通讯作者：
Lanza, Marcos R. V.
影响因子：
16.5
作者：
Longhui Zheng;Xiao Yu;Mingce Long;Qilin Li
通讯作者：
Longhui Zheng;Xiao Yu;Mingce Long;Qilin Li
影响因子：
22.1
作者：
Dawei Wang;Yi Li;G. L. Puma;Chao Wang;Peifang Wang;Wenlong Zhang;Qing Wang
通讯作者：
Dawei Wang;Yi Li;G. L. Puma;Chao Wang;Peifang Wang;Wenlong Zhang;Qing Wang
影响因子：
4.4
作者：
Gomes, Andre Severo Pereira;Visscher, Lucas;Eliav, Ephraim
通讯作者：
Eliav, Ephraim