当前位置：
X-MOL 学术
›
ACS Appl. Mater. Interfaces
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Three-Dimensional Nanoporous Co9S4P4 Pentlandite as a Bifunctional Electrocatalyst for Overall Neutral Water Splitting
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2019-01-07 00:00:00 , DOI: 10.1021/acsami.8b17961 Yongwen Tan 1, 2 , Min Luo 3 , Pan Liu 4 , Chun Cheng 2 , Jiuhui Han 2 , Kentaro Watanabe 2 , Mingwei Chen 2, 5, 6
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2019-01-07 00:00:00 , DOI: 10.1021/acsami.8b17961 Yongwen Tan 1, 2 , Min Luo 3 , Pan Liu 4 , Chun Cheng 2 , Jiuhui Han 2 , Kentaro Watanabe 2 , Mingwei Chen 2, 5, 6
Affiliation
|
Significant progress has recently been achieved in developing noble-metal-free catalysts for electrochemical water splitting in acidic and alkaline electrolytes. However, high-performance bifunctional catalysts toward both hydrogen evolution and oxygen oxidation reactions of neutral water have not been realized in spite of the technical importance for electrochemical hydrogen production in natural environments powered by renewable energy sources of wind, solar, and so on. Here, we report a nanoporous Co9S4P4 pentlandite with three-dimensional bicontinuous nanoporosity for electrochemical water splitting in neutral solutions. The three-dimensional binder-free catalyst shows a negligible onset overpotential, low Tafel slope, and excellent poisoning tolerance for hydrogen evolution reaction, comparable to or even better than commercial Pt catalysts. Remarkably, the new catalyst also has excellent catalytic activities toward oxygen evolution and, hence, can be used as both anode and cathode for overall neutral water splitting. These extraordinary catalytic activities toward neutral water splitting have never been obtained from non-noble-metal catalysts before. The bifunctional and low-cost catalyst holds great promise for practical applications in electrochemical water splitting in natural environments.
中文翻译：
三维纳米多孔Co 9 S 4 P 4膨润土作为一种用于中性总水分解的双功能电催化剂
最近在开发用于在酸性和碱性电解质中进行电化学水分解的无贵金属催化剂方面已经取得了重大进展。然而，尽管对于由风能，太阳能等可再生能源驱动的自然环境中的电化学制氢技术具有技术重要性，但对于中性水的氢气释放和氧气氧化反应的高性能双功能催化剂尚未实现。在这里，我们报告了纳米多孔Co 9 S 4 P 4三维双连续纳米孔隙的膨润土，用于中性溶液中的电化学水分解。三维无粘结剂催化剂显示出可忽略的起始超电势，低的Tafel斜率和极好的氢气析出反应中毒耐受性，与市售Pt催化剂相当甚至更好。值得注意的是，这种新型催化剂对氧气的释放也具有出色的催化活性，因此可以用作整个中性水分解的阳极和阴极。以前从未从非贵金属催化剂获得过这些对中性水分解的非凡催化活性。该双功能且低成本的催化剂在自然环境中的电化学水分解中的实际应用中具有广阔的前景。
更新日期：2019-01-07
中文翻译：
三维纳米多孔Co 9 S 4 P 4膨润土作为一种用于中性总水分解的双功能电催化剂
最近在开发用于在酸性和碱性电解质中进行电化学水分解的无贵金属催化剂方面已经取得了重大进展。然而，尽管对于由风能，太阳能等可再生能源驱动的自然环境中的电化学制氢技术具有技术重要性，但对于中性水的氢气释放和氧气氧化反应的高性能双功能催化剂尚未实现。在这里，我们报告了纳米多孔Co 9 S 4 P 4三维双连续纳米孔隙的膨润土，用于中性溶液中的电化学水分解。三维无粘结剂催化剂显示出可忽略的起始超电势，低的Tafel斜率和极好的氢气析出反应中毒耐受性，与市售Pt催化剂相当甚至更好。值得注意的是，这种新型催化剂对氧气的释放也具有出色的催化活性，因此可以用作整个中性水分解的阳极和阴极。以前从未从非贵金属催化剂获得过这些对中性水分解的非凡催化活性。该双功能且低成本的催化剂在自然环境中的电化学水分解中的实际应用中具有广阔的前景。
京公网安备 11010802027423号