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褰撳墠浣嶇疆錛?棣栭〉 >> 璧勮 >> 澶嶅悎鏉愭枡 >> 琛屼笟鍔ㄦ?/a> >> 姝ｆ枃

榪?/span>鏃?/span>錛?/span>鍘?/span>闂?/span>澶?/span>瀛?/span>鏉?/span>鍕?/span>鏁?/span>鎺?/span>鍥?/span>闃?/span>鍦?/span>榪?/span>娓?/span>閲?/span>灞?/span>絀?/span>浣?/span>璋?/span>鎺?/span>瀵?/span>閽?/span>紱?/span>瀛?/span>鐢?/span>姹?/span>閿?/span>閰?/span>閽?/span>姝?/span>鏋?/span>鏉?/span>鏂?/span>褰?/span>鍝?/span>鏂?/span>闈?/span>鍙?/span>寰?/span>鏂?/span>榪?/span>灞?/span>錛?/span>娣?/span>鍏?/span>鍒?/span>鏋?/span>浜?/span>涓?/span>鍚?/span>榪?/span>娓?/span>閲?/span>灞?/span>絀?/span>浣?/span>鍚?/span>閲?/span>瀵?/span>P2鍨?/span>閿?/span>閰?/span>閽?/span>姝?/span>鏋?/span>鏉?/span>鏂?/span>鐨?/span>緇?/span>鏋?/span>婕?/span>鍙?/span>銆?/span>鐢?/span>鍖?/span>瀛?/span>鎬?/span>鑳?/span>鐨?/span>褰?/span>鍝?/span>錛?/span>鐩?/span>鍏?/span>鎴?/span>鏋?/span>浠?/span>鏍?/span>棰?/span>涓?/span>鈥?/span>Insights of the Electrochemical Reversibility of P2-Type Sodium Manganese Oxide Cathodes via Modulation of Transition Metal Vacancies鈥?/span>鍙?/span>琛?/span>鍦?/span> ACS Applied Materials & Interfaces銆?/span>

鏈?/span>鏂?/span>浜?/span>鐐?/span>


鈽?/span> 鎺?/span>鍒?/span>闄?/span>娓?/span>閫?/span>鐜?/span>鐨?/span>鑷?/span>鐒?/span>闄?/span>娓?/span>鏉?/span>鏂?/span>NAMO-na鍜?/span>娣?/span>鐏?/span>鏉?/span>鏂?/span>NAMO-qu錛?/span>涓?/span>鑰?/span>闀?/span>紼?/span>緇?/span>鏋?/span>鍧?/span>涓?/span>P2鍨?/span>錛?/span>浣?/span>榪?/span>娓?/span>閲?/span>灞?/span>絀?/span>浣?/span>鍚?/span>閲?/span>涓?/span>鍚?/span>

鈽?/span> 榪?/span>娓?/span>閲?/span>灞?/span>絀?/span>浣?/span>鍚?/span>閲?/span>鏇?/span>澶?/span>鐨?/span>NAMO-na鍦?/span>鍏?/span>鏀?/span>鐢?/span>榪?/span>紼?/span>涓?/span>緇?/span>鏋?/span>紼?/span>瀹?/span>錛?/span>浣?/span>姣?/span>瀹?/span>閲?/span>杈?/span>灝?/span>錛?/span>榪?/span>娓?/span>閲?/span>灞?/span>絀?/span>浣?/span>鍚?/span>閲?/span>杈?/span>灝?/span>鐨?/span>NAMO-qu姣?/span>瀹?/span>閲?/span>楂?/span>錛?/span>鍊?/span>鐜?/span>鎬?/span>鑳?/span>浼?/span>寮?/span>錛?/span>浣?/span>緇?/span>鏋?/span>婕?/span>鍙?/span>澶?/span>鏉?/span>錛?/span>寰?/span>鐜?/span>鎬?/span>鑳?/span>杈?/span>宸?/span>


鍥?/span>鏂?/span>瀵?/span>璇?/span>


(1)鎺?/span>閾?/span>閿?/span>閰?/span>閽?/span>姝?/span>鏋?/span>鏉?/span>鏂?/span>閫?/span>榪?/span>婧?/span>鑳?/span>鍑?/span>鑳?/span>娉?/span>鍚?/span>鎴?/span>錛?/span>閫?/span>榪?/span>鎺?/span>鍒?/span>闄?/span>娓?/span>閫?/span>鐜?/span>鍒?/span>鍒?/span>寰?/span>鍒?/span>鑷?/span>鐒?/span>闄?/span>娓?/span>鏉?/span>鏂?/span>NAMO-na鍜?/span>娣?/span>鐏?/span>鏉?/span>鏂?/span>NAMO-qu銆?/span>濡?/span>鍥?/span>1鎵紺?/span>錛?/span>NAMO-na鍜?/span>NAMO-qu闀?/span>紼?/span>緇?/span>鏋?/span>鍧?/span>灞?/span>浜?/span>P2鍨?/span>錛?/span>褰?/span>璨?/span>綾?/span>浼?/span>錛?/span>浣?/span>涓?/span>鑰?/span>榪?/span>娓?/span>閲?/span>灞?/span>絀?/span>浣?/span>瀛?/span>鍦?/span>宸?/span>寮?/span>錛?/span>NAMO-na涓?/span>7.8%錛?/span>NAMO-qu涓?/span>1.6%


鍥?/span>1 NAMO-na鍜?/span>NAMO-qu鏉?/span>鏂?/span>鐨?/span>緇?/span>鏋?/span>琛?/span>寰?/span>銆?/span>(a)XRD,(b)TOF-PND,(c)NAMO-na鐨?/span>緇?/span>鏋?/span>紺?/span>鎰?/span>鍥?/span>錛?/span>(d)NAMO-qu鐨?/span>緇?/span>鏋?/span>紺?/span>鎰?/span>鍥?/span>銆?/span>(e-f)NAMO-na鍜?/span>NAMO-qu鐨?/span>HADDF鍜?/span>鍏?/span>绱?/span>鍒?/span>甯?/span>鍥?/span>


(2)濡?/span>鍥?/span>2鎵紺?/span>錛?/span>瓚?/span>瀵?/span>閲?/span>瀛?/span>騫?/span>娑?/span>紓?/span>寮?/span>璁?/span>鍜?/span>鍥?/span>浣?/span>鏍?/span>紓?/span>23Na榪?/span>涓姝?/span>璇?/span>鏄?/span>浜?/span>NAMO-na鍜?/span>NAMO-qu涓?/span>縐?/span>鏉?/span>鏂?/span>涓?/span>鍚?/span>榪?/span>娓?/span>閲?/span>灞?/span>絀?/span>浣?/span>鍚?/span>閲?/span>瀵?/span>紓?/span>鎬?/span>鍜?/span>灞鍩?/span>緇?/span>鏋?/span>鐨?/span>褰?/span>鍝?/span>銆?/span>NAMO-qu鏇?/span>灝?/span>鐨?/span>T1鍊?/span>璇?/span>鏄?/span>緇?/span>鏋?/span>涓?/span>Na鍏?/span>鏈?/span>鏇?/span>蹇?/span>鐨?/span>璺?/span>榪?/span>閫?/span>鐜?/span>銆?/span>

鍥?/span>2. 23Na ssNMR鍜?/span>SQUID鐨?/span>緇?/span>鏋?/span>銆?/span>(a)cm-1-T鐨?/span>瀹?/span>楠?/span>緇?/span>鏋?/span>涓?/span>120-300K鐨?/span>綰?/span>鎬?/span>鎷?/span>鍚?/span>錛?/span>宸?/span>涓?/span>瑙?/span>涓?/span>綰?/span>鎬?/span>鎷?/span>鍚?/span>緇?/span>鏋?/span>銆?/span>(b)23Na ssNMR璋?/span>鍥?/span>銆?/span>*琛?/span>紺?/span>鏃?/span>杞?/span>杈?/span>甯?/span>銆?/span>(c)T1鐨?/span>瀹?/span>楠?/span>鏁?/span>鎹?/span>涓?/span>鎷?/span>鍚?/span>緇?/span>鏋?/span>


(3)鐢?/span>鍖?/span>瀛?/span>鎬?/span>鑳?/span>

涓?/span>浜?/span>榪?/span>涓姝?/span>鐮?/span>絀?/span>榪?/span>娓?/span>閲?/span>灞?/span>絀?/span>浣?/span>瀵?/span>鐢?/span>鍖?/span>瀛?/span>鎬?/span>鑳?/span>鐨?/span>褰?/span>鍝?/span>錛?/span>浠?/span>浠?/span>鍦?/span>涓?/span>鍚?/span>鐢?/span>鍘?/span>鍖?/span>闂?/span>銆?/span>涓?/span>鍚?/span>鐢?/span>嫻?/span>瀵?/span>搴?/span>鏉?/span>浠?/span>涓?/span>瀵?/span>姣?/span>鍒?/span>鏋?/span>浜?/span>NAMO-na鍜?/span>NAMO-qu鐨?/span>寰?/span>鐜?/span>鎬?/span>鑳?/span>銆?/span>鍊?/span>鐜?/span>鎬?/span>鑳?/span>銆?/span>紱?/span>瀛?/span>鎵?/span>鏁?/span>緋?/span>鏁?/span>鍜?/span>姣?/span>瀹?/span>閲?/span>銆?/span>瀵?/span>姣?/span>緇?/span>鏋?/span>鏄?/span>紺?/span>錛?/span>NAMO-na姣?/span>瀹?/span>閲?/span>杈?/span>浣?/span>錛?/span>浣?/span>寰?/span>鐜?/span>鎬?/span>鑳?/span>鏇?/span>浼?/span>寮?/span>錛?/span>NAMO-qu姣?/span>瀹?/span>閲?/span>楂?/span>錛?/span>浣?/span>寰?/span>鐜?/span>鎬?/span>鑳?/span>杈?/span>宸?/span>銆?/span>GITT鍜?/span>鍊?/span>鐜?/span>鎬?/span>鑳?/span>緇?/span>鏋?/span>璇?/span>鏄?/span>榪?/span>娓?/span>閲?/span>灞?/span>絀?/span>浣?/span>瀵?/span>緇?/span>鏋?/span>鍙?/span>鍖?/span>鍜?/span>閽?/span>紱?/span>瀛?/span>鎵?/span>鏁?/span>鍔?/span>鍔?/span>瀛?/span>鏄?/span>鏈?/span>鍒?/span>鐨?/span>銆?/span>

鍥?/span>3 鐢?/span>鍖?/span>瀛?/span>鎬?/span>鑳?/span>琛?/span>寰?/span>緇?/span>鏋?/span>銆?/span>(a)NAMO-na鍜?/span>(b)NAMO-qu鍦?/span>1.5-4.5V鐢?/span>鍘?/span>鍖?/span>闂?/span>鐨?/span>棣?/span>鍦?/span>鍏?/span>鏀?/span>鐢?/span>鏇?/span>綰?/span>涓?/span>dQ/dV鍐?/span>鎻?/span>鍥?/span>錛?/span>(c)NAMO-na鍜?/span>(d)NAMO-qu鐨?/span>GITT涓?/span>璁?/span>綆?/span>鐨?/span>DNa 錛?/span>(e)2-4.5V鍜?/span>120 mA g-1鏉?/span>浠?/span>涓?/span>鐨?/span>寰?/span>鐜?/span>鎬?/span>鑳?/span>錛?/span>(f)鍊?/span>鐜?/span>鎬?/span>鑳?/span>


(4)緇?/span>鏋?/span>婕?/span>鍙?/span>

In-situ XRD琛?/span>寰?/span>浜?/span>NAMO-na鍜?/span>NAMO-qu鍦?/span>1.5-4.5 V鐢?/span>鍘?/span>鍖?/span>闂?/span>鐨?/span>棣?/span>鍦?/span>鍏?/span>鏀?/span>鐢?/span>榪?/span>紼?/span>涓?/span>鐨?/span>緇?/span>鏋?/span>婕?/span>鍙?/span>銆?/span>濡?/span>鍥?/span>4鎵紺?/span>錛?/span>NAMO-na鍦?/span>棣?/span>鍦?/span>鍏?/span>鏀?/span>鐢?/span>榪?/span>紼?/span>涓?/span>琛?/span>灝?/span>宄?/span>榪?/span>緇?/span>縐?/span>鍔?/span>錛?/span>涓?/span>淇?/span>鎸?/span>P2緇?/span>鏋?/span>錛?/span>NAMO-qu鍦?/span>鍏?/span>鐢?/span>榪?/span>紼?/span>涓?/span>(002)琛?/span>灝?/span>宄?/span>鍏?/span>鍚?/span>浣?/span>瑙?/span>搴?/span>縐?/span>鍔?/span>錛?/span>褰?/span>鍏?/span>鐢?/span>鑷?/span>4 V浠?/span>涓?/span>鏃?/span>鍒?/span>鍚?/span>楂?/span>瑙?/span>搴?/span>縐?/span>鍔?/span>錛?/span>璇?/span>鏄?/span>緇?/span>鏋?/span>涓?/span>鍑?/span>鐜?/span>鍫?/span>鍙?/span>灞?/span>閿?/span>錛?/span>鍦?/span>鏀?/span>鐢?/span>榪?/span>紼?/span>涓?/span>鍫?/span>鍙?/span>灞?/span>閿?/span>閫?/span>娓?/span>娑?/span>澶?/span>騫?/span>鎭?/span>澶?/span>涓?/span>P2錛?/span>浣?/span>鏀?/span>鐢?/span>鏈?/span>鏈?/span>(002)琛?/span>灝?/span>宄?/span>鍙?/span>璐?/span>鍔?/span>瑁?/span>錛?/span>璇?/span>鏄?/span>鍙?/span>鐢?/span>P2-P2鈥?/span>鐨?/span>緇?/span>鏋?/span>婕?/span>鍙?/span>銆?/span>鍥?/span>5涓?/span>23Na鐨?/span>鍥?/span>浣?/span>鏍?/span>紓?/span>璋?/span>鍥?/span>錛?/span>浠?/span>灞鍩?/span>緇?/span>鏋?/span>婕?/span>鍙?/span>瑙?/span>搴?/span>榪?/span>涓姝?/span>璇?/span>鏄?/span>浜?/span>NAMO-qu鍦?/span>鍏?/span>鐢?/span>鏈?/span>鏈?/span>褰?/span>鎴?/span>鍫?/span>鍙?/span>灞?/span>閿?/span>銆?/span>

鍥?/span>4 in-situ XRD緇?/span>鏋?/span>銆?/span>(a)NAMO-na錛?/span>(b)NAMO-qu

鍥?/span>5. ex-situ 23Na ss-NMR璋?/span>鍥?/span>


鍘?/span>闂?/span>澶?/span>瀛?/span>鍖?/span>瀛?/span>鍖?/span>宸?/span>瀛?/span>闄?/span>紜?/span>澹?/span>鐢?/span>鑲?/span>绔?/span>姊?/span>涓?/span>璇?/span>璁?/span>鏂?/span>鐨?/span>絎?/span>涓浣?/span>鑰?/span>錛?/span>閫?/span>璁?/span>浣?/span>鑰?/span>涓?/span>鏉?/span>鍕?/span>鏁?/span>鎺?/span>銆?/span>鏈?/span>璁?/span>鏂?/span>鐢?/span>鍥?/span>瀹?/span>鑷?/span>鐒?/span>縐?/span>瀛?/span>鍩?/span>閲?/span>(no. 21935009, 21761132030)鍜?/span>鍥?/span>瀹?/span>閲?/span>鐐?/span>鐮?/span>鍙?/span>涓?/span>欏?/span>璇?/span>棰?/span>(no. 2016YFB0901502錛?/span>2018YFB0905400)璧?/span>鍔?/span>瀹?/span>鎴?/span>銆?/span>


璁?/span>鏂?/span>淇?/span>鎭?/span>錛?/span>

Zhumei Xiao, Wenhua Zuo, Xiangsi Liu, Jisheng Xie, Huajin He, Yuxuan Xiang, Haodong Liu, and Yong Yang, Insights of the Electrochemical Reversibility of P2-Type Sodium Manganese Oxide Cathodes via Modulation of Transition Metal Vacancies, ACS Applied Materials & Interfaces, DOI: 10.1021/acsami.1c09544


鐩?/strong>鍏?/strong>閾?/strong>鎺?/strong>

https://pubs.acs.org/doi/10.1021/acsami.1c09544

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