<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Reddy, Kasala Prabhakar</style></author><author><style face="normal" font="default" size="100%">Dama, Srikanth</style></author><author><style face="normal" font="default" size="100%">Mhamane, Nitin B.</style></author><author><style face="normal" font="default" size="100%">Ghosalya, Manoj K.</style></author><author><style face="normal" font="default" size="100%">Raja, Thirumalaiswamy</style></author><author><style face="normal" font="default" size="100%">Satyanarayana, Chilukuri V.</style></author><author><style face="normal" font="default" size="100%">Gopinath, Chinnakonda S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%"> Molybdenum carbide catalyst for the reduction of CO2 to CO: surface science aspects by NAPPES and catalysis studies </style></title><secondary-title><style face="normal" font="default" size="100%">Dalton Transactions</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style  face="normal" font="default" size="100%">AUG</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">48</style></volume><pages><style face="normal" font="default" size="100%">12199-12209</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Carbon dioxide is &lt;span class=&quot;hitHilite&quot;&gt;a&lt;/span&gt; greenhouse gas, and needs &lt;span class=&quot;hitHilite&quot;&gt;to&lt;/span&gt; be converted into one &lt;span class=&quot;hitHilite&quot;&gt;of&lt;/span&gt; &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; useful feedstocks, such as carbon monoxide and methanol. We demonstrate &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; &lt;span class=&quot;hitHilite&quot;&gt;reduction&lt;/span&gt; &lt;span class=&quot;hitHilite&quot;&gt;of&lt;/span&gt; &lt;span class=&quot;hitHilite&quot;&gt;CO2&lt;/span&gt; with H-2 as &lt;span class=&quot;hitHilite&quot;&gt;a&lt;/span&gt; reducing agent, via &lt;span class=&quot;hitHilite&quot;&gt;a&lt;/span&gt; reverse water gas shift (RWGS) reaction, &lt;span class=&quot;hitHilite&quot;&gt;by&lt;/span&gt; using &lt;span class=&quot;hitHilite&quot;&gt;a&lt;/span&gt; potential and low cost Mo2C &lt;span class=&quot;hitHilite&quot;&gt;catalyst&lt;/span&gt;. Mo2C was evaluated &lt;span class=&quot;hitHilite&quot;&gt;for&lt;/span&gt; &lt;span class=&quot;hitHilite&quot;&gt;CO2&lt;/span&gt; hydrogenation at ambient pressure as &lt;span class=&quot;hitHilite&quot;&gt;a&lt;/span&gt; function &lt;span class=&quot;hitHilite&quot;&gt;of&lt;/span&gt; temperature, and &lt;span class=&quot;hitHilite&quot;&gt;CO2&lt;/span&gt; : H-2 ratio at &lt;span class=&quot;hitHilite&quot;&gt;a&lt;/span&gt; gas hourly space velocity (GHSV) &lt;span class=&quot;hitHilite&quot;&gt;of&lt;/span&gt; 20 000 h(-1). It is demonstrated that &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; Mo2C &lt;span class=&quot;hitHilite&quot;&gt;catalyst&lt;/span&gt; with 1 : 3 ratio &lt;span class=&quot;hitHilite&quot;&gt;of&lt;/span&gt; &lt;span class=&quot;hitHilite&quot;&gt;CO2&lt;/span&gt; : H-2 is highly active (58% &lt;span class=&quot;hitHilite&quot;&gt;CO2&lt;/span&gt; conversion) and selective (62%) towards &lt;span class=&quot;hitHilite&quot;&gt;CO&lt;/span&gt; at 723 K at ambient pressure. Both properties (basicity and redox properties) and &lt;span class=&quot;hitHilite&quot;&gt;high&lt;/span&gt; catalytic &lt;span class=&quot;hitHilite&quot;&gt;activity&lt;/span&gt; observed with Mo2C around 700 K correlate well and indicate &lt;span class=&quot;hitHilite&quot;&gt;a&lt;/span&gt; strong synergy among them towards &lt;span class=&quot;hitHilite&quot;&gt;CO2&lt;/span&gt; activation. X-ray diffraction and Raman analysis show that &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; Mo2C &lt;span class=&quot;hitHilite&quot;&gt;catalyst&lt;/span&gt; remains in &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; beta-Mo2C form before and after &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; reaction. &lt;span class=&quot;hitHilite&quot;&gt;The&lt;/span&gt; mechanistic &lt;span class=&quot;hitHilite&quot;&gt;aspects&lt;/span&gt; &lt;span class=&quot;hitHilite&quot;&gt;of&lt;/span&gt; &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; RWGS reaction were determined &lt;span class=&quot;hitHilite&quot;&gt;by&lt;/span&gt; near-ambient pressure X-ray photoelectron spectroscopy (NAPXPS) with in situ generated Mo2C from carburization &lt;span class=&quot;hitHilite&quot;&gt;of&lt;/span&gt; Mo-metal foil. NAPXPS measurements were carried out at near ambient pressure (0.1 mbar) and various temperatures. Throughout &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; reaction, no significant changes in &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; Mo2+ oxidation state (&lt;span class=&quot;hitHilite&quot;&gt;of&lt;/span&gt; Mo2C) were observed indicating that &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; &lt;span class=&quot;hitHilite&quot;&gt;catalyst&lt;/span&gt; is highly stable; C and O 1s spectral results indicate &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; oxycarbide species as an active intermediate &lt;span class=&quot;hitHilite&quot;&gt;for&lt;/span&gt; RWGS. &lt;span class=&quot;hitHilite&quot;&gt;A&lt;/span&gt; good correlation is observed between catalytic &lt;span class=&quot;hitHilite&quot;&gt;activity&lt;/span&gt; from atmospheric pressure reactors and &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; electronic structure details derived from NAPXPS results, which establishes &lt;span class=&quot;hitHilite&quot;&gt;the&lt;/span&gt; structure-&lt;span class=&quot;hitHilite&quot;&gt;activity&lt;/span&gt; correlation.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">32</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;
</style></custom3><custom4><style face="normal" font="default" size="100%">&lt;p&gt;&lt;span class=&quot;LrzXr kno-fv&quot;&gt;4.052 &lt;/span&gt;&lt;/p&gt;
</style></custom4></record></records></xml>