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| 1 | Bifunctional interstitial phosphorous doping strategy boosts platinum-zinc alloy for efficient ammonia oxidation reaction and hydrogen evolution reaction显示文摘It is still a lack of bifunctional catalysts for ammonia oxidation reaction(AOR)and hydrogen evolution reaction(HER)due to their different reaction mechanisms.In this work,P is doped into PtZn alloy by calcination with NaH_(2)PO_(2) as P source to induce the lattice tensile strain of Pt and the electronic interaction between P and Zn,which optimizes the AOR and HER activity simultaneously.The sample with the optimal P content can drive the AOR peak current density of 293.6 mA·mgPt^(-1),which is almost 2.7 times of Pt.For HER,the overpotential at^(-1)0 mA·cm^(-2) is only 23 mV with Tafel slope of 34.1 mV·dec^(-1).Furthermore,only 0.59 V is needed to obtain 50 mA·mgPt^(-1) for ammonia electrolysis under a two-electrode system.Therefore,this work shows an ingenious method to design bifunctional catalysts for ammonia electrolysis. | Tianqi Yu Kexin Tan Jia Wu Yongjin Zou Shibin Yin | 2024 | Nano Research2024，17，3： | 0 |
| 2 | Advanced materials and energy technologies towards carbon neutrality显示文摘The rapid development of human society has led to much increased consumption of energy,which results in global energy shortage as well as serious environmental concerns due to the use of non-sustainable fossil fuels.For example,the heavy relay on the use of coal and oil leads to carbon emission which is a major factor for global warming and climate change.Developing green and sustainable energy paths becomes more urgent than ever.In this regard,energy sources like sunshine,wind,and water are important to build a clean and sustainable future.For example,one could generate electricity from sun by solar cell devices.Later,such electricity can be stored either in the form of charges by batteries or supercapacitors,or stored in the form of chemicals by electrochemical catalysis conversion,which can be transported over a long distance or stored for a long time for end use.The efficiency of these new energy technologies and devices including photovoltaic,energy storage,and energy conversion,is key which determines whether they can be largescale implemented.High-performance materials play central rules in determining the efficiency of these technologies and therefore largely influence the use of these clean energy technologies and paths toward global mission of carbon neutrality. | Bilu Liu Gang Liu Yongbing Tang Hui-Ming Cheng | 2022 | Science China Materials2022，65，12： | 0 |
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