氧化钼修饰的NiPd纳米催化剂高效催化肼硼烷产氢
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- 英文论文题名：MoO_x-modified NiPd nanoparticles as efficient catalyst for complete hydrogen generation from hydrazine borane
- 论文作者：杨康康 ; 卢章辉
- 英文论文作者：Kangkang Yang ; Zhang-Hui Lu ; College of Chemistry and Chemical Engineering ; Jiangxi Normal University
- 年：2016
- 作者机构：江西师范大学化学化工学院;
- 论文关键词：肼硼烷 ; 纳米粒子催化剂 ; 制氢 ; NiPd纳米粒子 ; 水解
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十七分会：纳米催化
- 语种：中文
- 分类号：O643.36;TQ116.2
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十七分会 ; 纳米催化
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：232k
- 原文格式：D
- 会议级别：全国
摘要
肼硼烷(N_2H_4BH_3,HB)含氢量高达15.4 wt%,且常温下稳定,被认为是最有前景的储氢材料之一[1-5]。本工作中,我们采用简单的共还原法在室温下合成了高度分散粒径约为4.0 nm的氧化钼修饰的NiPd纳米粒子(NiPd-MoO_xNPs)。在323 K下,合成的Ni_(0.6)Pd_(0.4)-MoO_x可以高效催化肼硼烷的硼烷基水解和肼基裂解产氢,其氢气选择性达到100%,氢气转化频率(TOF)为491.1 h~(-1)。此外,循环使用5次之后催化剂的性能没有明显下降,表现出较好的循环稳定性。
Hydrazine borane(HB) is considered to be one of the most promising hydrogen storage materials due to its high hydrogen content of 15.4 wt%and stability.In this work,MoO_x-modified NiPd nanoparticles(NiPd-MoO_x NPs) have been facilely synthesized via a facile co-reduction method at room temperature.It was found that the synthesized NiPd-MoO_x NPs are well dispersed with an average size of about 4.0 nm(Fig.1a).Among all the synthesized catalysts,the Ni_(0.6)Pd_(0.4)-MoO_x with MoO_x content of 44.4 mol% exhibited the highest catalytic activity and 100%H_2 selectivity with the total turnover frequency(TOF) of 491.1 h for the complete hydrogen generation from HB at 323 K(Fig.1b).Moreover,the H_2 selectivity and activity almost have no decline after 5 runs,indicating the good stability of the Ni_(0.6)Pd_(0.4)-MoO_x NPs for hydrogen generation from HB.
Hydrazine borane(HB) is considered to be one of the most promising hydrogen storage materials due to its high hydrogen content of 15.4 wt%and stability.In this work,MoO_x-modified NiPd nanoparticles(NiPd-MoO_x NPs) have been facilely synthesized via a facile co-reduction method at room temperature.It was found that the synthesized NiPd-MoO_x NPs are well dispersed with an average size of about 4.0 nm(Fig.1a).Among all the synthesized catalysts,the Ni_(0.6)Pd_(0.4)-MoO_x with MoO_x content of 44.4 mol% exhibited the highest catalytic activity and 100%H_2 selectivity with the total turnover frequency(TOF) of 491.1 h for the complete hydrogen generation from HB at 323 K(Fig.1b).Moreover,the H_2 selectivity and activity almost have no decline after 5 runs,indicating the good stability of the Ni_(0.6)Pd_(0.4)-MoO_x NPs for hydrogen generation from HB.
引文
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[3]Zhang,Z.J.;Lu,Z.H.;Chen,X.S.ACS Sustainable Chem.Eng.2015,3:1255.
[4]Yao,Q.L.;Lu,Z.H.;Yang,K.K.;Chen,X.S.;Zhu,M.H.Sci.Rep.2015,5:15186.
[5]Yao,Q.L.;Lu,Z.H.;Zhang,Z.J.;Chen,X.S.;Lan,Y.Q.Sci.Rep.2014,4:7597.